Patent ID: 12220629

DESCRIPTION OF EMBODIMENTS

[First embodiment] A first embodiment of the present disclosure will hereinafter be described with reference to the drawings.

FIG.1is a schematic diagram depicting a configuration of a game system1A according to the present embodiment.

The game system1A according to the present embodiment corresponds to an operation system. As depicted inFIG.1, the game system1A includes an operation device2A, a game device4, and a display device6. The game system1A is configured such that the game device4advances a game, and that the display device6displays a screen during execution of the game device4, such as a game screen, according to operation signals transmitted from the operation device2A.

Respective configurations of the game system1A will hereinafter be described.

[Configuration of Operation Device]FIG.2is a diagram depicting an external appearance of the operation device2A. Specifically,FIG.2is a front diagram depicting the operation device2A.

The operation device2A transmits an operation signal corresponding to an input operation input by a user to operate the game device4. For example, as depicted inFIG.2, the operation device2A can constitute a control pad (controller) having an inverted U-shape as viewed from the front. The operation device2A depicted inFIG.2by way of example has a housing21.

[Configuration of Housing] The housing21has a left holding portion21L, a right holding portion21R, a central portion21C, and a top portion21U.

The left holding portion21L is located at a left end portion of the housing21and held by the left hand of the user. The right holding portion21R is located at a right end portion of the housing21and held by the right hand of the user.

The central portion21C is provided between the left holding portion21L and the right holding portion21R.

The top portion21U is a surface located on the upper side as viewed from the user facing the central portion21C while holding the left holding portion21L by the left hand and the right holding portion21R by the right hand.

[Configuration of Device Body] The operation device2A includes a device body22A provided on the housing21. The device body22A has an operation unit23exposed to the outside of the housing21.

[Configuration of Operation Unit] The operation unit23includes one direction button231, four buttons232, two buttons233, and four buttons234(234L and234R), and further a touch pad235, and two sticks236(236L and236R). Each of the buttons231to234corresponds to an operator.

The direction button231is a button pressable in the up-down and left-right directions. The direction button231is disposed on the left holding portion21L.

The four buttons232are disposed on the right holding portion21R.

The two buttons233are provided on the left and right of the central portion21C, respectively.

The two buttons234L included in the four buttons234and provided at the left end of the top portion21U (the operation button on the depth side is not depicted in the figure) are disposed in a line in the depth direction. Similarly, the two buttons234R included in the four buttons234and provided at the right end of the top portion21U (the operation button on the depth side is not depicted in the figure) are disposed in a line in the depth direction.

The touch pad235is a two-point detection type touch pad. The touch pad235detects a touch operation performed by the user, and outputs a signal corresponding to the detected touch operation. The touch pad235is provided in the central portion21C at a position sandwiched between the two buttons233in such a manner as to be able to be inserted and protruded into the housing21. Accordingly, the touch pad235is one operator included in the operators.

The stick236L included in the two sticks236is disposed below and on the left of the touch pad235, while the stick235R is disposed on the lower side and the right side of the touch pad235. While not depicted in detail in the figure, each of the sticks236L and236R has a tiltable shaft member. Each of the sticks236L and236R detects a tilt direction of the shaft member tilted by the user, and outputs a signal indicating the detected tilt direction.

[Other Configurations of Device Body]FIG.3is a block diagram depicting a configuration of the device body22A.

As depicted inFIG.3, the device body22A includes, in addition to the operation unit23, a battery BT, a detection unit24, a power generation unit25, a charging unit26, a notification unit27, a vibration unit28, a communication unit29A, a storage unit30, and a control unit31A.

Note that the operation device2A operates in a first mode which uses power supplied from the battery BT, in a case where a residual quantity of the battery BT is a predetermined residual quantity or larger. The first mode can also be referred to as a battery power use mode. Note that the predetermined residual quantity can be defined as such a residual quantity sufficient for transmission of an operation signal from the operation device2A, for example.

On the other hand, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity, the operation device2A operates in a second mode which uses power supplied from the power generation unit25. The second mode can also be referred to as a generated power use mode.

As described above, the operation device2A has operation modes including the first mode and the second mode.

[Configuration of Battery] The battery BT supplies accumulated power to the device body22A. According to the present embodiment, the battery BT is constituted by a secondary battery chargeable by the charging unit26described below. However, the battery BT may be constituted by a primary battery instead of this example. In addition, the battery BT may be provided in such a manner as to be attachable to and detachable from the housing21.

[Configuration of Detection Unit] The detection unit24operates using power supplied from the battery BT to detect a press of the corresponding one of the buttons. In other words, the detection unit24operates when the operation mode of the operation device2A is the first mode.

The detection unit24includes a plurality of detection elements241provided in correspondence with the buttons231to234and the touch pad235which are detection targets constituting the operation unit23. Each of the plurality of detection elements241detects a press of the corresponding detection target of the buttons231to234and the touch pad235. The detection element241having detected the press of the detection target outputs a signal containing identification information indicating the detection element241itself to a first control unit311included in the control unit31A and described below.

[Configuration of Power Generation Unit] The power generation unit25includes a plurality of power generation elements251disposed within the housing21in correspondence with the detection targets of the respective detection elements241. Specifically, the plurality of power generation elements251are provided within the housing21in correspondence with the buttons231to234and the touch pad235, which are detection targets provided in such a manner as to be able to be inserted and protruded into the housing21.

Each of the power generation elements251generates power in response to a press of the corresponding detection target and supplies the generated power to the charging unit26and a second control unit312included in the control unit31A and described below. Moreover, in a case where any of the detection targets is pressed, the corresponding power generation element251outputs a signal containing identification information indicating the pressed detection target to the second control unit312. In other words, supply of power from any one of the power generation elements251indicates a press of the detection target associated with the corresponding power generation element251.

[Configuration of Charging Unit] The charging unit26charges the battery BT with power supplied from the power generation elements251.

Here, at least a part of power generated by the power generation elements251is consumed for transmission of operation signals by using the second control unit312and a second communication unit292included in a communication unit29A and described below. Accordingly, the power used for charging the battery BT by the charging unit26corresponds to surplus power in the power generated by the power generation elements251.

Note that the charging unit26may be eliminated in a case where no surplus power remains in the generated power, for example.

[Configuration of Notification Unit] The notification unit27gives a notification of an operation state of the operation device2A. In other words, the notification unit27is a first notification unit which gives a notification of the operation state of the operation device2A by presenting a lighting state. Specifically, the notification unit27lights with power supplied from the battery BT when an input operation is performed for the operation unit23under control by the first control unit311.

In more detail, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, i.e., in a case where the operation mode of the operation device2A is the first mode, the notification unit27lights in response to at least an input operation performed for the operation unit23under control by the first control unit311.

On the other hand, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity, i.e., in a case where the operation mode of the operation device2A is the second mode, no power is supplied to the notification unit27. Accordingly, the notification unit27does not light even when an input operation is performed for the operation unit23.

The user can check which of the first mode and the second mode has been selected as the operation mode of the operation device2A on the basis of the lighting state of the notification unit27configured as above.

Note that the notification unit27may be configured to light in a first color with use of power supplied from the battery BT, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, and light in a second color different from the first color with use of power supplied from the power generation elements251, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity. In other words, the notification unit27may be configured to light in the first color with use of power of the battery BT, in a case where the operation mode of the operation device2A is the first mode, and light in the second color with use of power of the power generation elements251, in a case where the operation mode of the operation device2A is the second mode.

Moreover, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, the notification unit27may constantly light as long as the power source of the operation device2A is kept turned on.

The notification27thus configured may be constituted by an indicator including a solid state light source such as an LED (Light Emitting Diode). However, the notification unit27is not limited to the unit of this example, but may be a unit which outputs sound corresponding to an input operation performed for the operation unit23, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, and does not output sound, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity even when an input operation is input to the operation unit23.

[Configuration of Vibration Unit] The vibration unit28is a unit which generates vibration, and may be constituted by a motor, for example.

The vibration unit28generates vibration in a case where the operation unit23is operated. In this manner, the user is notified of the fact that the operation unit23has been operated. Accordingly, the vibration unit28can be considered as a second notification unit which gives a notification of an operation state of the operation device2A. According to the present embodiment, the vibration unit28vibrates with use of power supplied from the battery BT under control by the first control unit311, in a case where the operation mode of the operation device2A is the first mode. However, the vibration unit28is not limited to the unit of this example but may be a unit configured to vibrate with use of power supplied from the power generation elements251under control by the second control unit312, in a case where the operation mode of the operation device2A is the second mode.

Moreover, in a case where the communication unit29A receives a vibration generation signal, which is a signal for generating vibration, from the game device4, the vibration unit28generates vibration under control by the first control unit311or the second control unit312.

Note that the vibration unit28is not an essential constituent element.

[Configuration of Communication Unit] The communication unit29A corresponds to a transmission unit which transmits an operation signal to the game device4under control by the control unit31A, as an operation signal corresponding to an input operation performed by the user for the operation unit23. The communication unit29A includes a first communication unit291and the second communication unit292.

Each of the first communication unit291and the second communication unit292wirelessly transmits an operation signal in conformity with near field wireless communication standards such as Bluetooth (registered trademark). However, each of the first communication unit291and the second communication unit292may be configured to wirelessly transmit an operation signal in conformity with other wireless communication standards such as ZigBee (registered trademark).

The first communication unit291transmits an operation signal input from the first control unit311by using power supplied from the battery BT. The operation signal transmitted by the first communication unit291contains information indicating that the operation mode of the operation device2A is the first mode. For example, the operation signal transmitted by the first communication unit291contains information indicating that the operation signal is an operation signal transmitted by the first communication unit291.

The second communication unit292transmits an operation signal input from the second control unit312by using power supplied from the power generation elements251. The operation signal transmitted by the second communication unit292contains information indicating that the operation mode of the operation device2A is the second mode. For example, the operation signal transmitted by the second communication unit292contains information indicating that the operation signal is an operation signal transmitted by the second communication unit292.

[Configuration of Storage Unit] The storage unit30stores various types of data necessary for performing operations of the operation device2A. For example, the storage unit30stores a correspondence between the detection targets described above and respective pieces of identification information indicating the detection targets.

[Configuration of Control Unit] The control unit31A controls operations of the operation device2A. For example, the control unit31A controls the charging unit26, the notification unit27, the vibration unit28, the communication unit29A, and the storage unit30. The control unit31A includes the first control unit311, the second control unit312, and a charging control unit313.

[Configuration of First Control Unit] The first control unit311operates with power supplied from the battery BT to control the operation device2A, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, i.e., in a case where the operation device2A operates in the first mode. Specifically, the first control unit311controls the notification unit27, the vibration unit28, and the first communication unit291.

For example, when the operation unit23is operated, the first control unit311causes the notification27to give a notification that the operation unit23has been operated. Specifically, when a signal is input from any one of the detection elements241, the touch pad235, and the sticks236, the first control unit311causes the notification unit27to give a notification that the operation unit23has been operated.

Moreover, for example, the first control unit311causes the first communication unit291to transmit an operation signal corresponding to an input operation performed by the user for the operation unit23. Specifically, in a case where a signal is input from any one of the detection elements241in response to a press of the corresponding detection target, the first control unit311specifies the detection target corresponding to identification information contained in the input signal with reference to the storage unit30, and causes the first communication unit291to transmit an operation signal indicating that the specified detection target has been operated.

Moreover, when a signal is input from any one of the touch pad235and the sticks236, the first control unit311causes the first communication unit291to transmit an operation signal corresponding to the input signal.

Note that the first control unit311regulates transmission of an operation signal from the second control unit312to the second communication unit292in a case where the first control unit311causes the first communication unit291to transmit an operation signal. For example, the first control unit311causes the first communication unit291to transmit an operation signal, and outputs a regulation signal to the second control unit312to regulate transmission of an operation signal from the second communication unit292. Accordingly, the first control unit311has a function of a transmission regulation unit.

In addition, the first control unit311specifies the residual quantity of the battery BT on the basis of power (particularly voltage) supplied from the battery BT and causes the first communication unit291to transmit a residual quantity notification signal for notification of the residual quantity of the battery BT at timing immediately before the residual quantity of the battery BT becomes smaller than the predetermined residual quantity. In this manner, the game device4is allowed to recognize a state that the operation mode of the operation device2A will be switched from the first mode to the second mode in a short time due to a small residual quantity of the battery BT.

Note that the first control unit311may periodically causes the first communication unit291to transmit the residual quantity notification signal.

[Configuration of Second Control Unit] The second control unit312is started by power supplied from the power generation elements251to control the operation device2A, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity, i.e., in a case where the operation device2A operates in the second mode. The second control unit312controls the second communication unit292, for example.

In a case where a signal is input from the corresponding power generation element251in response to a press of at least one of the detection targets, the second control unit312specifies the detection target corresponding to identification information contained in the input signal with reference to the storage unit30, and causes the second communication unit292to transmit an operation signal indicating that the specified detection target has been operated.

As described above, in a case where the operation mode of the operation device2A is the second mode for performing operation with use of power supplied from the power generation unit25, neither the first control unit311nor the first communication unit291is allowed to function. Accordingly, an operation signal corresponding to a press of the detection target associated with the corresponding power generation element251is transmitted only from the second communication unit292. On the other hand, in a case where the operation mode of the operation device2A is the second mode, no operation signal corresponding to either a touch operation performed for the touch pad235, or a tilt operation performed for one of the sticks236is transmitted from the operation device2A. In this manner, in a case where the operation device2A operates in the second mode, a limitation is imposed on an input operation performed for the operation device2A, such as a limitation to the operable operators.

As described above, the second control unit312is started by power supplied from the power generation elements251. Accordingly, even in a state where the residual quantity of the battery BT is the predetermined residual quantity or larger and sufficient for transmission of an operation signal from the first communication unit291, the second control unit312is started by power supplied from the power generation elements251and causes the second communication unit292to transmit an operation signal. In this case, there is a possibility that an operation signal is transmitted from each of the first communication unit291and the second communication unit292in response to an input operation performed for an identical detection target.

However, when the first control unit311causes the first communication unit291to transmit an operation signal, the first control unit311outputs a regulation signal to the second control unit312as described above. In this case, the second control unit312regulates transmission of an operation signal from the second communication unit292to prevent transmission of an operation signal from each of the first communication unit291and the second communication unit292.

Each of the first control unit311and the first communication unit291operates with power supplied from the battery BT. On the other hand, in a case where the operation device2A operates in the second mode, each of the second control unit312and the second communication unit292operates with power supplied from the power generation elements251. Accordingly, assuming that a period from press timing of the detection target to transmission timing of the operation signal is defined as a transmission completion period, a longer transmission completion period is likely to be required in the second mode than that in the first mode.

For coping with this situation, the notification unit27gives a notification indicating the operation mode of the operation device2A. Moreover, as will be described in detail below, the game device4determines the operation mode of the operation device2A on the basis of an operation signal received from the operation device2A and notifies the user of the determined operation mode of the operation device2A.

In this manner, the user is allowed to recognize the current operation mode of the operation device2A, and switch between the use of the operation device2A in the first mode and the use of the operation device2A in the second mode according to situations.

[Configuration of Charging Control Unit] The charging control unit313controls charging by the charging unit26for the battery BT. Specifically, the charging control unit313specifies the residual quantity of the battery BT on the basis of power (particularly voltage) supplied from the battery BT and regulates charging by the charging unit26for the battery BT, in a case where the residual quantity of the battery BT is full.

[Configuration of Game Device]FIG.4is a block diagram depicting a configuration of the game device4.

The game device4corresponds to an electronic device. As described above, the game device4executes and advances a game according to operation signals received from the operation device2A, and also displays a screen during execution of the game on the display device6.

As depicted inFIG.4, the game device4includes a communication unit41, a storage unit42, a memory43, and a control unit44. The communication unit41, the storage unit42, the memory43, and the control unit44are connected by a bus line BL in such a manner as to be communicable with each other.

[Configuration of Communication Unit] Under control by the control unit44, the communication unit41communicates with the operation device2A, and further communicates with a server SVA, which is an external device, via a network N.

For example, the communication unit41receives an operation signal and a residual quantity notification signal transmitted from the operation device2A, and outputs the received operation signal and the received residual quantity notification signal to the control unit44. Accordingly, the communication unit41corresponds to a reception unit included in the game device4.

For example, the communication unit41transmits a vibration generation signal to the operation device2A according to a state of progress of the game. Moreover, for example, the communication unit41communicates with the server SVA to acquire necessary information from the server SVA.

[Configurations of Storage Unit and Memory] The storage unit42stores programs and data necessary for performing operations of the game device4. For example, the storage unit42stores an OS (operating System) for controlling the game device4. Moreover, for example, the storage unit42stores pairing information indicating paring with the operation device2A. According to the present embodiment, the game device4is configured to execute games. Therefore, the storage unit42can store game programs. In addition, in a case where the game device4has an optical drive, game programs may be recorded in an optical disk readable by the optical drive.

The memory43is a work memory of the control unit44. The memory43temporarily stores programs and data read from the storage unit42or an optical disk.

[Configuration of Control Unit]FIG.5is a block diagram depicting function units included in the control unit44.

The control unit44includes an arithmetic processing device such as a CPU (Central Processing Unit), and controls operations of the game device4.

As depicted inFIG.5, the control unit44has an execution unit441, an information acquisition unit442, a mode determination unit443, a handleability determination unit444, and a display control unit445.

The execution unit441reads and executes an OS and a game program from the storage unit42and advances a game according to operation signals received from the operation device2A.

The information acquisition unit442communicates with the server SVA via the communication unit41, and acquires information associated with the game currently executed. For example, the information acquisition unit442acquires, from the server SVA, information indicating a category of the game currently executed, or information indicating whether or not the game executable by the execution unit441is handleable in the second mode of the operation device2A. The information acquisition unit442stores information acquired from the server SVA in the storage unit42.

The mode determination unit443determines which of the first mode and the second mode has been selected as the operation mode of the operation device2A on the basis of an operation signal received by the communication unit41from the operation device2A. Specifically, in a case where the operation signal is determined to be a signal transmitted from the first communication unit291on the basis of information contained in the received operation signal, the mode determination unit443determines that the operation mode of the operation device2A is the first mode. On the other hand, in a case where the operation signal is determined to be a signal transmitted from the second communication unit292on the basis of information contained in the received operation signal, the mode determination unit443determines that the operation mode of the operation device2A is the second mode.

In a case where the mode determination unit443determines that the operation mode of the operation device2A is the second mode, the handleability determination unit444determines whether or not the game currently executed is handleable in the second mode of the operation device2A.

Here, a game requiring only low immediate responsiveness, i.e., a game allowed to be advanced even in a relatively long transmission completion period, is also allowed to be advanced by the operation device2A in the second mode of the operation mode. Examples of this game category include an adventure game and a simulation game.

On the other hand, a game requiring highly immediate responsiveness, i.e., a game which may cause a problem in progress of the game if a relatively long transmission completion period is needed, the game is not easily advanced by the operation device2A in the state where the operation mode is the second mode, i.e., the operation device2A which is likely to require a long transmission completion period. Examples of this game category include a shooting game and an action game.

Accordingly, in a case where information indicating the category of the game currently executed is acquired from the server SVA, for example, the handleability determination unit444determines whether or not the category of the game currently executed is handleable in the second mode of the operation device2A on the basis of the acquired information.

In a case where the category of the game currently executed is handleable in the second mode of the operation device2A, the handleability determination unit444determines that the game currently executed is advanceable by the operation device2A in the second mode of the operation mode. In a case where the category is not handleable, the handleability determination unit444determines that the game currently executed is difficult to advance by the operation device2A in the second mode of the operation mode. Accordingly, the category handleable in the second mode is defined as a category of such a game advanceable without causing any particular problem even by the operation device2A operating in the second mode.

Moreover, in a case where information indicating whether or not the game currently executed is handleable in the second mode of the operation device2A is acquired from the server SVA, for example, the handleability determination unit444determines whether or not the game currently executed is handleable in the second mode of the operation device2A on the basis of this information. In a case where the game currently executed is handleable in the second mode of the operation device2A, the handleability determination unit444determines that the game currently executed is advanceable by the operation device2A in the second mode of the operation mode. In a case where the game is not handleable, the handleability determination unit444determines that the game currently executed is difficult to advance by the operation device2A in the second mode of the operation mode. Accordingly, the game handleable in the second mode is defined as such a game advanceable without causing any particular problem even by the operation device2A operating in the second mode.

FIGS.6and7are diagrams depicting screens during execution P1and P2, respectively, which are examples of a screen displayed on the display device6by the display control unit445.

The display control unit445generates a screen during execution of the game executed by the execution unit441and displays the screen during execution on the display device6.

For example, when the mode determination unit443determines that the operation mode of the operation device2A has been switched to the second mode, the display control unit445displays, on the display device6, a message that the operation mode of the operation device2A has been switched to the second mode (generated power use mode), as in the screen during execution P1depicted inFIG.6.

At this time, in a case where the handleability determination unit444determines that the game currently executed is not handleable in the second mode of the operation device2A, the display control unit445displays, on the display device6, a message that the operation mode of the operation device2A has been switched to the second mode (generated power use mode), and that the game currently executed is not handleable in the second mode of the operation device2A, as in the screen P2during execution depicted inFIG.7.

Accordingly, the display control unit445has a function of a notification unit.

FIGS.8and9are diagrams depicting screens during execution P3and P4, respectively, which are examples of a screen displayed on the display device6by the display control unit445.

Note that the display control unit445may display a screen during execution for indicating switching of the operation mode of the operation device2A in response to a residual quantity notification signal received from the operation device2A.

For example, in a case of determination that the residual quantity of the battery BT is a value close to the predetermined residual quantity, i.e., the operation mode of the operation device2A is in a state immediately before switching from the first mode to the second mode on the basis of the residual quantity notification signal, the display control unit445may display a message that the operation mode of the operation device2A is to be switched to the second mode on the display device6, as in the screen during execution P3depicted inFIG.8.

At this time, in a case where the handleability determination unit444determines that the game currently executed is not handleable in the second mode of the operation device2A, the display control unit445may display, on the display device6, a message that the operation mode of the operation device2A is to be switched to the second mode, and that the game currently executed is not handleable in the second mode of the operation device2A, as in the screen P2during execution depicted inFIG.9.

Note that the message presenting the above contents is displayed while overlapped on the game screen. Accordingly, the game is temporarily interrupted at the time of display of the screens during execution P1to P4. The game is restarted when a predetermined operation, such as an operation of pressing an “OK” button, is performed for any of the screens P1to P4during execution.

FIG.10is a diagram depicting a screen during execution P1A which is a modification of the screen during execution P1.

Meanwhile, the message having the above contents may be displayed in a manner not interrupting the game.

For example, the screen during execution P1A depicted inFIG.10may be displayed instead of the screen during execution P1depicted inFIG.6. The screen during execution P1A includes a screen region R1where the game screen in the screen during execution P1is displayed, and a message region R2where a message is displayed. The screen region R1in the screen during execution P1A is displayed with reduction to a size smaller than the game screen in the screen during execution P1. The message region R2is disposed at a position not overlapping with the screen region R1. In addition, in a case where a message has a relatively large number of characters in the message region R2which has a small size, the full sentences of the message may be presented by scrolling the contents of the message, for example. Moreover, the position of the message region R2in the screen during execution P1A is not limited to the position on the upper side with respect to the screen region R1but may be a position on any one of the lower side, the right side, and the left side.

Furthermore, a message through which the game screen is transmittable to such a level that the game screen is recognizable may be displayed in each of the screens during execution P1to P4so as not to interrupt the game currently executed. At this time, a message may be superimposed on the game screen, and displayed by scrolling the contents of the message, for example.

Note that the display control unit445has a function of a notification unit in the present embodiment described above. However, this example is not required to be adopted. The configuration of the game device4may include such a notification unit which gives a notification of various types of information by use of sound or lighting of an indicator or the like.

[Advantageous Effects of First Embodiment] The game system1A according to the present embodiment described above can offer the following advantageous effects.

The operation device2A includes the operation unit23containing the buttons231to234and the touch pad235, the power generation elements251each generating power according to an operation performed for the operation unit23, the battery BT supplying power, and the communication unit29A transmitting an operation signal corresponding to the operation unit23having been operated. By using the first communication unit291and the second communication unit292, the communication unit29A transmits an operation signal with power supplied from the battery BT, in a case where the residual quantity of the battery BT is a predetermined residual quantity or larger, and transmits an operation signal with power generated by the power generation elements251, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity.

This configuration achieves transmission of an operation signal by use of power supplied from the battery BT, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger. Accordingly, transmission of an operation signal is achievable without delay. On the other hand, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity, a transmission delay of an operation signal may be produced. However, the operation device2A does not become disabled. Accordingly, usability of the operation device2A improves.

The operation device2A includes the notification unit27which gives a notification of an operation state of the operation device2A by presenting a lighting state. The notification unit27lights to give a notification that the communication unit29A transmits an operation signal by use of power supplied from the battery BT. In addition, the notification unit27does not light to give a notification that the communication unit29A transmits an operation signal by use of power generated by the power generation elements251.

Alternatively, the notification unit27lights in a first color to give a notification that the communication unit29A transmits an operation signal by use of power supplied from the battery BT. In addition, the notification unit27lights in a second color different from the first color to give a notification that the communication unit29A transmits an operation signal by use of power generated by the power generation elements251.

This configuration allows the user to check whether the operation mode of the operation device2A is the first mode which transmits an operation signal by use of power of the battery BT, or the second mode which transmits an operation signal by use of power generated by the power generation elements251on the basis of the lighting state of the notification unit27. Accordingly, usability of the operation device2A further improves.

The communication unit29A includes the first communication unit291which transmits an operation signal by use of power supplied from the battery BT, and the second communication unit292which transmits an operation signal by use of power generated by the power generation elements251. The operation signal contains information indicating whether the operation signal has been transmitted by power supplied from the battery BT or transmitted by power supplied from the power generation elements251. In other words, the operation signal contains information indicating whether the operation signal is an operation signal transmitted from the first communication unit291, or an operation signal transmitted from the second communication unit292. Accordingly, the operation signal contains information indicating the current operation mode of the operation device2A.

This configuration allows the game device4, which is a reception device for receiving an operation signal from the operation device2A, to recognize the state of the operation device2A, i.e., the operation mode of the operation device2A.

According to the operation device2A, the first control unit311functions as a transmission regulation unit, and outputs a regulation signal to the second control unit312to regulate transmission of an operation signal from the second communication unit292in a case where the first communication unit291transmits an operation signal.

This configuration can prevent transmission of an operation signal from each of the first communication unit291and the second communication unit292in response to an operation performed for the same operator of the operation unit23.

The operation device2A includes the charging unit26which charges the battery BT using power generated by the power generation elements251.

This configuration allows charging of the battery BT while using the operation device2A. Accordingly, usability of the operation device2A further improves.

The operation device2A includes the vibration unit28which generates vibration at the time of transmission of an operation signal.

This configuration can notify the user of the fact that an operation signal has been transmitted in response to an operation. Accordingly, usability of the operation device2A further improves.

The operation device2A includes the housing21, and the touch pad235provided in such a manner as to be able to be inserted or protruded into the housing21. The operation unit23includes the touch pad235.

This configuration achieves transmission of an operation signal by an operation of the touch pad235in a manner of a button. Accordingly, general versatility of the operation device2A improves.

The game system1A as an operation system includes the operation device2A transmitting an operation signal, and the game device4functioning as an electronic device which operates by receiving the operation signal from the operation device2A.

The operation device2A includes the operation unit23, the power generation elements251generating power according to an operation performed for the operation unit23, the battery BT supplying power, and the communication unit29A functioning as a transmission unit which transmits an operation signal corresponding to the operation unit23having been operated. The operation device2A operates in either the first mode where the communication unit29A transmits an operation signal by use of power supplied from the battery BT, or the second mode where the communication unit29A transmits an operation signal by use of power generated by the power generation elements251. The operation signal contains information indicating the operation mode of the operation device2A.

The game device4includes the communication unit41functioning as a reception unit, the mode determination unit443, and the display control unit445functioning as a notification unit. The communication unit41receives an operation signal from the operation device2A. The mode determination unit443determines the operation mode of the operation device2A on the basis of an operation signal received by the communication unit41. The display control unit445gives a notification indicating the operation mode of the operation device2A when the mode determination unit443determines that the operation mode of the operation device2A has been switched from the first mode to the second mode.

According to this configuration, the game device4gives a notification indicating the operation mode of the operation device2A using the display control unit445when the operation mode of the operation device2A is switched to the second mode which may produce a transmission delay of an operation signal from the time of the operation performed by the user. In other words, the display control unit445gives a notification that the operation mode of the operation device2A has been switched to the second mode. This configuration can notify the user of switching to the second mode when the operation mode of the operation device2A is switched to the second mode to deal with a smaller residual quantity of the battery BT than the predetermined residual quantity. Accordingly, usability of the game system1A as an operation system improves.

The game device4for executing games includes the handleability determination unit444which determines whether or not a game is handleable in the second mode when the mode determination unit443determines that the operation mode of the operation device2A is the second mode. The display control unit445functioning as a notification unit gives a notification that the game is not handleable in the second mode, when the handleability determination unit444determines that the game is not handleable in the second mode.

According to this configuration, the game device4can notify the user of the fact that the game currently executed is not handleable in the second mode when the operation mode of the operation device2A is switched to the second mode. Accordingly, usability of the game system1A further improves.

Here, a simulation game or a command selective system role playing game can advance the game even if a period from an operation by a user to transmission of an operation signal is relatively long. Accordingly, games in these categories are allowed to proceed even with long latency. On the other hand, games such as a shooting game and an action game are difficult to advance if transmission of an operation signal is delayed from an operation by a user. Accordingly, games in these categories may cause a problem in progress of the games if latency is long.

For coping with this situation, the handleability determination unit444determines that the game currently executed is not handleable in the second mode on the basis of information acquired from the server SVA in a case of determination that the category of the game executed is a predetermined category such as an action game.

This configuration allows the user to easily carry out operations such as charging of the battery BT.

The handleability determination unit444determines whether or not the game currently executed is handleable in the second mode, on the basis of information associated with the game.

This configuration can determine whether or not the game currently executed is handleable in the second mode.

[Second Embodiment] A second embodiment of the present disclosure will subsequently be described.

A game system according to the present embodiment has a configuration similar to the configuration of the game system1A of the first embodiment. Note herein that the operation device2A of the first embodiment automatically switches the operation mode from one of the first mode and the second mode to the other mode according to the residual quantity of the battery BT. Specifically, the operation device2A is configured to operate in the first mode when the residual quantity of the battery BT is the predetermined residual quantity or larger. However, the operation device2A is configured to stop power supply from the battery BT and automatically switch the operation mode to the second mode when the residual quantity of the battery BT becomes smaller than the predetermined residual quantity. On the other hand, according to the game system of the present embodiment, the user can manually switch the operation mode of the operation device. The game system of the present embodiment is different from the game system1A of the first embodiment in this point.

Note that parts presented in the following description and identical or substantially identical to the corresponding parts already described are given identical reference signs to omit the same description.

[General Configuration of Game System]FIG.11is a block diagram depicting a configuration of an operation device2B.

The game system according to the present embodiment corresponds to an operation system. The game system according to the present embodiment has configurations and functions similar to those of the game system1A of the first embodiment except for a point that the operation device2B depicted inFIG.11is provided instead of the operation device2A. Specifically, the game system according to the present embodiment includes the operation device2B, the game device4, and the display device6. The game system of the present embodiment operates in manners similar to the manners of the game system1A. Specifically, the operation device2B transmits an operation signal corresponding to an input operation input by the user. The game device4advances a game according to the operation signal. The display device6displays a screen during execution of the game.

Respective configurations of the game system according to the present embodiment will hereinafter be described.

[Configuration of Operation Device] By using the first communication unit291or the second communication unit292, the operation device2B transmits an operation signal corresponding to an input operation input by the user similarly to the operation device2A.

The operation device2B is configured not only to switch the operation mode according to the residual quantity of the battery BT, but also to switch the operation mode according to an operation performed by the user when the residual quantity of the battery BT is the predetermined residual quantity or larger.

The operation device2B includes the housing21and a device body22B.

As depicted inFIG.11, the device body22B has configurations and functions similar to those of the device body22A except for points that a control unit31B is provided instead of the control unit31A, and that a switching unit32is further provided. Specifically, the device body22B includes the operation unit23, the detection unit24, the power generation unit25, the charging unit26, the notification unit27, the vibration unit28, the communication unit29A, the storage unit30, the control unit31B, and the switching unit32.

[Configuration of Switching Unit] The switching unit32is a unit operated by the user at the time of switching of the operation mode of the operation device2B. When the switching unit32is operated, the switching unit32outputs a switching signal corresponding to the operation to the control unit31B by use of power of the battery BT. Accordingly, in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity, the switching unit32is unable to transmit a switching signal even in a case where the user operates the switching unit32to switch to the first mode. Accordingly, the operation for switching the operation mode of the operation device2B to the first mode is cancelled in a case where the residual quantity of the battery BT is smaller than the predetermined residual quantity.

Note that the switching unit32presented by way of example may include a button, and an output circuit which outputs a switching signal for switching between the first mode and the second mode to the control unit31B every time the button is pressed. Alternatively, the switching unit32presented by way of example may include a switch, and an output circuit which outputs a switching signal for switching to the first mode to the control unit31B in response to sliding of the switch to one side, and outputs a switching signal for switching to the second mode to the control unit31B in response to sliding of the switch to the other side.

[Configuration of Control Unit] The control unit31B controls operations of the operation device2B similarly to the control unit31A. The control unit31B includes a mode switching unit314in addition to the first control unit311, the second control unit312, and the charging control unit313.

The mode switching unit314switches the operation mode of the operation device2B according to a switching signal input from the switching unit32.

Specifically, in a case where the user operates the switching unit32to switch the operation mode of the operation device2B to the first mode, the mode switching unit314actuates the first control unit311and regulates the operation of the second control unit312according to a switching signal input from the switching unit32. In this manner, the mode switching unit314sets the operation mode of the operation device2B to the first mode.

On the other hand, in a case where the user operates the switching unit32to switch the operation mode of the operation device2B to the second mode, the mode switching unit314regulates the operation of the first control unit311and actuates the second control unit312according to a switching signal input from the switching unit32. In this manner, the mode switching unit314sets the operation mode of the operation device2B to the second mode.

[Configuration of Game Device] Also in the game system of the present embodiment, the game device4similarly advances a game according to operation signals received from the operation device2B and displays a screen during execution of the game on the display device6.

Note herein that the operation mode of the operation device2B can be switched to the second mode not only in the case where the residual quantity of the battery BT becomes smaller than the predetermined quantity, but also according to an operation performed by the user.

According to the game device4of the present embodiment, therefore, when the mode determination unit443determines that the operation mode of the operation device2B is the second mode on the basis of an operation signal received from the operation device2B, the display control unit445gives a notification that the operation mode of the operation device2B has been switched from the first mode (battery power use mode) to the second mode (generated power use mode) by displaying a message on the screen during execution, for example.

FIG.12is a diagram depicting a screen during execution P5as an example of a screen during execution displayed by the game device4.

When the mode determination unit443determines that the operation mode of the operation device2B is the second mode, the handleability determination unit444determines whether or not the game currently executed is handleable in the second mode of the operation device2B on the basis of information acquired from the server SVA. Thereafter, in a case where the handleability determination unit444determines that the game currently executed is not handleable in the second mode, the display control unit445having a function of a notification unit gives a notification that the game currently executed is not handleable in the second mode (generated power use mode) of the operation device2B in addition to the fact that the operation mode of the operation device2B has been switched to the second mode by displaying the screen P5during execution depicted inFIG.12, for example.

Note that the message displayed in the screen during execution P5may be displayed in a manner not to interrupt the game currently executed, similarly to the screens during execution P1to P4. For example, similarly to the screen during execution P1A, a message representing that the operation mode of the operation device2B has been switched to the second mode, and that the game currently executed is not handleable in the second mode may be displayed in the message region R2not overlapping with the screen region R1. Moreover, for example, a message transmittable to such a level that the game screen is observable may be superimposed and displayed on the game screen.

[Advantageous Effects of Second Embodiment] The game system according to the present embodiment described above can offer the following advantageous effects as well as advantageous effects similar to those of the game system1A of the first embodiment.

The operation device2B includes the operation unit23, the power generation elements251each generating power according to an operation performed for the operation unit23, the battery BT supplying power, the switching unit32switching the operation mode according to an operation performed by the user, and the communication unit29A transmitting an operation signal corresponding to the operation unit23having been operated. The communication unit29A transmits the operation signal by use of power accumulated in the battery BT, in a case where the operation mode is the first mode. The communication unit29A transmits the operation signal by use of power generated by the power generation elements251, in a case where the operation mode is the second mode.

According to this configuration, the user is allowed to select the desired operation mode from the first mode which consumes power accumulated in the battery BT but achieves transmission of an operation signal without delay, and the second mode which may produce a delay but preserves power accumulated in the battery BT. In this manner, even in a case where a certain residual quantity remains in the battery BT, for example, this residual quantity can be preserved in the battery BT by switching to the second mode. Accordingly, replacement of the battery BT and the frequency of charging can be both reduced. As a result, usability of the operation device2B improves.

The operation device2B includes the mode switching unit314which switches the operation mode to one of the first mode and the second mode according to a switching signal input from the switching unit32. The switching unit32outputs a switching signal using power supplied from the battery BT.

According to this configuration, the switching unit32is unable to output a switching signal unless power sufficient for outputting a switching signal from the switching unit32remains in the battery BT. Accordingly, in a case where only a small residual quantity remains in the battery BT, the operation mode of the operation device2B is unable to switch to the first mode, of the first and second modes, as the mode for transmitting an operation signal by use of power supplied from the battery BT. In this manner, regulation of switching to the first mode is achievable according to the residual quantity of the battery BT. As a result, usability of the operation device2B further improves.

[Third Embodiment] A third embodiment of the present disclosure will subsequently be described.

A game system according to the present embodiment has a configuration similar to the configurations of the game systems of the first and second embodiments, but is different from the game systems of the first and second embodiments in a point that a condition for switching from the first mode to the second mode is further added.

Note that parts presented in the following description and identical or substantially identical to the corresponding parts already described are given identical reference signs to omit the same description.

[General Configuration of Game System]FIG.13is a block diagram depicting a configuration of an operation device2C included in the game system according to the present embodiment.

The game system according to the present embodiment corresponds to an operation system. The game system according to the present embodiment has configurations and functions similar to those of the game system of the second embodiment except for a point that the operation device2C depicted inFIG.12is provided instead of the operation devices2A and2B. Specifically, the game system according to the present embodiment includes the operation device2C, the game device4, and the display device6. The game system of the present embodiment operates in manners similar to the manners of the game system of the second embodiment. Specifically, the operation device2C transmits an operation signal corresponding to an input operation input by the user. The game device4advances a game according to the operation signal. The display device6displays a screen during execution of the game.

Respective configurations of the game system according to the present embodiment will hereinafter be described.

[Configuration of Operation Device] The operation device2C transmits an operation signal corresponding to an input operation input by the user similarly to the operation devices2A and2B.

Similarly to the operation devices2A and2B, the operation device2C has a first function which automatically switches the operation mode from the first mode to the second mode when the residual quantity of the battery BT decreases and reaches a quantity smaller than the predetermined residual quantity. Moreover, similarly to the operation device2B, the operation device2C has a second function which switches the operation mode according to an operation performed by the user when the residual quantity of the battery BT is the predetermined residual quantity or larger.

Further, the operation device2C has a third function which allows switching from the second mode to the first mode in a case where power supplied from the outside is larger than predetermined power, i.e., in a case where voltage supplied from the outside is higher than predetermined voltage, even when the residual quantity of the battery BT is smaller than the predetermined residual quantity.

[Configuration of Device Body] The operation device2C includes the housing21and a device body22C.

As depicted inFIG.12, the device body22C has configurations and functions similar to those of the device body22B except for points that a communication unit29C and a control unit31C are provided instead of the communication unit29A and the control unit31A, and that a connection unit33and a power reception unit34are further provided. Specifically, the device body22C includes the operation unit23, the detection unit24, the power generation unit25, the charging unit26, the notification unit27, the vibration unit28, the communication unit29C, the storage unit30, the control unit31C, the switching unit32, the connection unit33, and the power reception unit34.

[Configuration of Connection Unit] The connection unit33is a terminal capable of receiving supply of power from an electronic device such as the game device4via a cable or the like, and communicating with the connected electronic device. In a case where the operation device2C and the game device4are connected to each other by a wire, a wired communication unit293included in the communication unit29C and described below communicates with the game device4via the connection unit33. For example, the connection unit33may be constituted by a USB (Universal Serial Bus) terminal.

[Configuration of Power Reception Unit] The power reception unit34receives power transmitted from the outside, and outputs the received power to the charging unit26and the control unit31C. The power reception unit34includes a wireless power reception unit341and a wired power reception unit342.

The wireless power reception unit341receives power wirelessly supplied from the outside, and outputs the received power. The wireless power reception unit341may adopt a radio wave reception type configuration which has an antenna, and a rectifying circuit which converts electromagnetic waves received by the antenna into direct currents. Alternatively, the wireless power reception unit341may adopt such a configuration which has a resonator magnetically resonating with a resonator on the power transmission side and receives power by a magnetic resonance system. Instead, the wireless power reception unit341may adopt an electromagnetic induction type configuration or an electric field coupling system configuration. Note that the device on the transmission side for transmitting power to the wireless power reception unit341may be constituted by the game device4, or other devices.

The wired power reception unit342receives power supplied from the outside and outputs the received power via the connection unit33.

[Configuration of Communication Unit] Similarly to the communication unit29A, the communication unit29C transmits an operation signal corresponding to an input operation performed by the user for the operation unit23under control by the control unit31C. The communication unit29C includes the first communication unit291and the second communication unit292, and further includes a wired communication unit293.

In a case where the connection unit33is connected to the game device4, the wired communication unit293transmits an operation signal to the game device4by a wire via the connection unit33under control by the first control unit311. In addition, in a case where the wired communication unit293communicates with the game device4, communication with the game device4achieved using the first communication unit291and the second communication unit292is regulated by the control unit31C.

[Configuration of Control Unit] The control unit31C controls operations of the operation device2C. The control unit31C includes a first control unit311C, a second control unit312C, a charging control unit313C, and a mode switching unit314C.

[Configuration of Charging Control Unit] The charging control unit313C charges the battery BT by controlling the charging unit26to charge the battery BT by use of power output from the power generation elements251and the power reception unit34. Note that the charging control unit313C regulates charging of the battery BT by the charging unit26, in a case where the residual quantity of the battery BT is full, similarly to the charging control unit313.

[Configuration of Mode Switching Unit] Similarly to the mode switching unit314, the mode switching unit314C switches the operation mode of the operation device2C to either one of the first mode and the second mode and actuates either one of the first control unit311C and the second control unit312.

Specifically, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, the mode switching unit314C switches the operation mode of the operation device2C to either one of the first mode and the second mode according to a switching signal when the switching signal is input from the switching unit32. Specifically, in a case where the residual quantity of the battery BT is the predetermined residual quantity or larger, the operation mode of the operation device2C is switchable to both of the first mode and the second mode.

Moreover, in a case where the power received by the power reception unit34has a predetermined value or higher even when the residual quantity of the battery BT is smaller than the predetermined residual quantity, the mode switching unit314C switches the operation mode of the operation device2C to either one of the first mode and the second mode according to a switching signal when the switching signal is input from the switching unit32. Note that the mode switching unit314C may automatically switch the operation mode of the operation device2C to the first mode in a case where the power output from the wireless power reception unit341or the wired power reception unit342has a predetermined value or higher.

On the other hand, the mode switching unit314C switches the operation mode of the operation device2C to the second mode in a case where the power received by the power reception unit34has a value lower than the predetermined value and the residual quantity of the battery BT is smaller than the predetermined residual quantity. In this situation, even in a case where a switching signal for switching the operation mode of the operation device2C to the first mode is input from the switching unit32, the mode switching unit314C maintains the second mode while ignoring the switching signal thus input.

[Configuration of First Control Unit] The first control unit311C has a function similar to the function of the first control unit311. Specifically, the first control unit311C operates in a case where the operation device2C is in the first mode, and controls the notification unit27, the vibration unit28, and the first communication unit291by use of power supplied from the battery BT.

Moreover, in a case where the operation device2C is connected to the game device4by a wire via the connection unit33, the first control unit311C transmits an operation signal not by the first communication unit291but by the wired communication unit293. Specifically, the first control unit311C determines whether or not communication with the game device4by a wire via the connection unit33is allowed, and causes the wired communication unit293to transmit an operation signal to the game device4in a case of determination that this communication is allowed. In addition, in a case where the first control unit311C causes the wired communication unit293to transmit an operation signal, the first control unit311C causes the wired communication unit293to transmit such an operation signal containing information indicating the operation mode of the operation device2C.

On the other hand, in a case where the operation device2C does not communicate with the game device4by a wire, i.e., in a case where the operation device2C wirelessly communicates with the game device4, the first control unit311C causes the first communication unit291to transmit an operation signal.

[Configuration of Second Control Unit] The second control unit312C has a function similar to the function of the second control unit312. Specifically, the second control unit312C operates in a case where the operation device2C is in the second mode and controls the second communication unit292with power supplied from the power generation elements251.

Moreover, in a case where the operation device2C is connected to the game device4by a wire via the connection unit33, the second control unit312C transmits an operation signal not by the second communication unit292but by the wired communication unit293. Specifically, similarly to the first control unit311C, the second control unit312C determines whether or not communication with the game device4by a wire via the connection unit33is allowed and causes the wired communication unit293to transmit an operation signal to the game device4in a case of determination that this communication is allowed. In addition, in a case where the second control unit312C causes the wired communication unit293to transmit an operation signal, the second control unit312C causes the wired communication unit293to transmit such an operation signal containing information which indicates the operation mode of the operation device2C.

On the other hand, in a case where the operation device2C does not communicate with the game device4by a wire, i.e., in a case where the operation device2C wirelessly communicates with the game device4, the second control unit312C causes the second communication unit292to transmit an operation signal.

In this manner, the operation device2C gives priority to wired communication over wireless communication at the time of transmission of an operation signal.

[Configuration of Game Device] Also in the game system of the present embodiment, the game device4similarly advances a game according to operation signals received from the operation device2C and displays a screen during execution of the game on the display device6.

In a case where the game device4communicates with the operation device2C herein, the mode determination unit443determines the operation mode of the operation device2C on the basis of information contained in a received operation signal, regardless of whether the communication system is wired communication or wireless communication. In a case where the mode determination unit443determines that the operation mode of the operation device2C is the second mode, a screen during execution similar to the screen during execution P1depicted inFIG.6is displayed.

At this time, in a case where the handleability determination unit444determines, on the basis of information acquired from the server SVA, that the game currently executed is not handleable in the second mode of the operation device2C and where power received by the power reception unit34has a value lower than the predetermined value, the display control unit445having a function of a notification unit displays a screen during execution similar to the screen of execution P5depicted inFIG.12.

In this manner, a notification is given to indicate that the operation mode of the operation device2C has been switched to the second mode, that the game currently executed is not handleable in the second mode, and that the received power is insufficient.

FIG.14is a diagram depicting a screen during execution P6as an example of a screen during execution displayed on the display device6by the information processing device7.

Meanwhile, in a case where the handleability determination unit444determines that the game currently executed is not handleable in the second mode and where power received by the power reception unit34has the predetermined value or higher, the display control unit445displays the screen during execution P6depicted inFIG.14, for example.

In this manner, a notification is given to indicate that the operation mode of the operation device2C has been switched to the second mode, that the game currently executed is not handleable in the second mode, and that switching to the first mode is allowed.

Note that the messages displayed in the respective screens during execution may be displayed in a manner not to interrupt the game currently executed, similarly to the game systems of the first and second embodiments. For example, similarly to the screen during execution P1A, each of the messages displayed in the respective screens during execution may be displayed in the message region R2not overlapping with the screen region R1. Moreover, for example, a message transmittable to such a level that the game screen is observable may be superimposed and displayed on the game screen.

[Advantageous Effects of Third Embodiment] The game system according to the present embodiment described above can offer the following advantageous effects as well as advantageous effects similar to those of the game system1A of the first embodiment and the game system of the second embodiment.

The operation device2C includes the operation unit23, the power generation elements251generating power according to an operation performed for the operation unit23, and the battery BT supplying power. In addition, the operation device2C includes the power reception unit34receiving power supplied from the outside, and the communication unit29C transmitting an operation signal corresponding to the operation unit23having been operated. In a case where the power received by power reception unit34has a predetermined value or higher, the communication unit29C transmits an operation signal by use of power supplied from the battery BT charged by power received by the power reception unit34. Moreover, in a case where power received by the power reception unit34has a value lower than the predetermined value, the communication unit29C transmits an operation signal by use of power generated by the power generation elements251.

This configuration achieves transmission of an operation signal by use of power generated by the power generation elements251in a case where received power is not sufficiently high, e.g., in a case where power lower than power sufficient for transmitting an operation signal is received, even when power is supplied from the outside. Therefore, even in the case of supply of power from the outside, the operation signal transmission state is switchable according to the power supplied from the outside. Accordingly, usability of the operation device2C improves.

[Fourth Embodiment] A fourth embodiment of the present disclosure will subsequently be described.

A game system according to the present embodiment has a configuration similar to the configurations of the game systems of the first to third embodiments but is different from the game systems of the first to third embodiments in points that an information processing device is provided in place of the game device4, and that a server has a configuration of the game device4. Note that parts presented in the following description and identical or substantially identical to the corresponding parts already described are given identical reference signs to omit the same description.

[General Configuration of Game System]FIG.15is a schematic diagram depicting a configuration of a game system1B according to the present embodiment.

The game system1B according to the present embodiment corresponds to an operation system. As depicted inFIG.15, the game system1B includes the operation device2A, the information processing device7, the display device6, and a server SVB. The game system1B is capable of achieving cloud gaming where the information processing device7transmits operation signals received from the operation device2A to the server SVB via the network N. The server SVB executes a game according to the received operation signals and transmits an image of a screen during execution obtained as a processing result to the information processing device7. The information processing device7receives the image obtained by the server SVB as the processing result and displays the received image on the display device6. In this manner, the game is allowed to be advanced.

Specifically, the information processing device7functions as a relay device providing a relay between the operation device2A and the server SVB, and displays the image received from the server SVB on the display device6.

Note that the information processing device7in the example ofFIG.15is a notebook PC (Personal Computer), and is connected to the network N via an access point AP. However, the information processing device7is not limited to a PC but may be other types of information processing device such as a game device and a smartphone. Moreover, in a case where the information processing device7is a notebook PC, the display device6may be a display device built in the notebook PC.

[Configuration of Server] As described above, the server SVB has a function of the game device4. Specifically, while not depicted in the figure, the server SVB includes the communication unit41, the storage unit42, the memory43, and the control unit44connected to each other via a bus line.

According to the present embodiment, the communication unit41communicates with the information processing device7via the network N.

The storage unit42stores an OS for controlling the server SVB, and game programs. Moreover, the storage unit42stores at least either information indicating categories of games executable by the server SVB and categories handleable in the second mode, or information indicating games handleable in the second mode.

The control unit44has the execution unit441, the information acquisition unit442, the mode determination unit443, the handleability determination unit444, and the display control unit445.

The execution unit441executes a game selected by the user according to operation signals received from the operation device2A via the information processing device7.

The information acquisition unit442acquires information associated with the game currently executed from the storage unit42.

The mode determination unit443and the handleability determination unit444operate in manners similar to the corresponding manners described above.

The display control unit445corresponds to a notification unit. The display control unit445generates a screen during execution of the game and transmits an image of the generated screen during execution to the information processing device7. In this manner, the information processing device7displays the received image on the display device6to present a screen during execution such as the screens during execution P1to P4.

As described above, the information processing device7is capable of advancing a game by transmitting operation signals received from the operation device2A to the server SVB, and displaying a screen during execution received from the server SVB on the display device6, and also capable of giving a notification of the operation mode of the operation device2A using a message indicating the operation mode of the operation device2A.

[Advantageous Effects of Fourth Embodiment] The game system1B according to the present embodiment described above can offer the following advantageous effects as well as advantageous effects similar to those of the game systems of the first to third embodiments.

For example, the game system1B equivalent to an operation system includes the operation device2A transmitting an operation signal, the information processing device7receiving the operation signal, and the server SVB communicating with the information processing device. The operation device2A includes the operation unit23, the power generation elements251each generating power according to an operation performed for the operation unit23, the battery BT supplying power, and the communication unit29A functioning as a transmission unit which transmits an operation signal corresponding to the operation unit23having been operated. The operation device2A operates in either one of the first mode where the communication unit29A transmits an operation signal by use of power supplied from the battery BT, and the second mode where the communication unit29A transmits an operation signal by use of power generated by the power generation elements251. The operation signal contains information indicating the operation mode of the operation device2A.

The information processing device7transmits the operation signal received from the operation device2A to the server SVB. The information processing device7receives, from the server SVB, a screen during execution obtained by the server SVB as a processing result. The information processing device7displays the screen during execution on the display device6, for example.

The server SVB includes the mode determination unit443, and the display control unit445functioning as a notification unit. The mode determination unit443determines the operation mode of the operation device2A on the basis of an operation signal received from the information processing device7. When the mode determination unit443determines that the operation mode of the operation device2A has been switched from the first mode to the second mode, the display control unit445transmits a screen during execution obtained as a processing result which is to be given by the information processing device7as a notification of the operation mode of the operation device2A.

According to this configuration, similarly to the game system1A, the information processing device7gives a notification indicating the operation mode of the operation device2A on the basis of a processing result received from the server SVB when the operation mode of the operation device2A is switched to the second mode which may produce a transmission delay of an operation signal from an operation performed by the user. Specifically, the display control unit445of the server SVB causes the information processing device7to give a notification that the operation mode of the operation device2A has been switched to the second mode. This configuration can notify the user of the fact of switching to the second mode when the operation mode of the operation device2A is switched to the second mode. Accordingly, usability of the game system1B as an operation system improves.

The server SVB further includes the execution unit441and the handleability determination unit444. The execution unit441executes a game according to operation signals transmitted from the operation device2A and received by the information processing device7. When the mode determination unit443determines that the operation mode of the operation device2A is the second mode, the handleability determination unit444determines whether or not the game currently executed is handleable in the second mode. When the handleability determination unit444determines that the game currently executed is not handleable in the second mode, the display control unit445functioning as a notification unit transmits, to the information processing device7, a screen during execution obtained as a processing result which is to be given by the information processing device7as a notification that the game is not handleable in the second mode.

According to this configuration, the game device4can notify the user of the fact that the game currently executed is not handleable in the second mode when the operation mode of the operation device2A is switched to the second mode. Accordingly, usability of the game system1B further improves.

Note that the game system1B includes the operation device2A as an operation device, and that the server SVB has a function similar to the function of the game device4presented in the first embodiment. However, the game system1B is not limited to this. The game system1B may include the operation device2B or the operation device2C as an operation device, while the server SVB may have a configuration similar to the configuration of the game device4presented in the second or third embodiment. In this case, the operation device2B or2C is only required to be connected to the information processing device7by wired or wireless connection.

[Modifications of Embodiments] The present disclosure includes not only the respective embodiments described above, but also modifications, improvements, and the like made within a range where the object of the present disclosure is achievable.

According to the present embodiments described above, each of the operations2A,2B, and2C automatically switches the operation mode to the second mode when the residual quantity of the battery BT becomes smaller than the predetermined residual quantity. However, this example is not required to be adopted. For example, each of the operations2B and2C may be configured to switch the operation mode only by using the switching unit32and the mode switching unit314.

According to the third and fourth embodiments described above, the operation device2C can switch the operation mode according to an operation by the user using the switching unit32and the mode switching unit314. However, this example is not required to be adopted. The operation device2C may achieve switching of the operation mode only on the basis of a level of power received by the power reception unit34. In other words, the operation device2C may be a device having only the third function of the first to third functions described above.

According to the first, second, and fourth embodiments described above, each of the operation devices2A and2B includes the charging unit26, the notification unit27, and the vibration unit28. However, this example is not required to be adopted. Each of the operation devices2A and2B may eliminate at least any one of the charging unit26, the notification unit27, and the vibration unit28.

According to the third and fourth embodiments described above, the operation device2C includes the notification unit27and the vibration unit28. However, this example is not required to be adopted. The operation device2C may eliminate at least either one of the notification unit27and the vibration unit28.

According to the respective embodiments described above, an operation signal contains information indicating that this operation signal is an operation signal transmitted from the first communication unit291by use of power supplied from the battery BT, or information indicating that this operation signal is an operation signal transmitted from the second communication unit292by use of power supplied from the power generation elements251. Accordingly, the operation signal contains information indicating the communication unit corresponding to a transmission source of the operation signal. In other words, the operation signal contains information indicating the operation mode of the operation device2A,2B, or2C. However, this example is not required to be adopted. The operation signal need not contain information indicating the transmission source of the operation signal, and information indicating the operation mode.

According to the respective embodiments described above, in a case where an operation signal is transmitted from the first communication unit291, the first control units311and311C each having a function of a transmission regulation unit transmit regulation signals to the second control units312and312C, respectively, to regulate transmission of an operation signal from the second communication unit292. However, this example is not required to be adopted. The game device4, the information processing device7, or the server SVB each receiving an operation signal from the operation device2A,2B, or2C may ignore an operation signal received from the second communication unit292.

According to the second to fourth embodiments described above, the switching unit32outputs a switching signal to the control unit31B by use of power supplied from the battery BT. However, this example is not required to be adopted. The switching unit32may have a power generation element and output a switching signal by use of power generated by this power generation element according to an operation performed by the user for the switching unit32.

According to the respective embodiments described above, each of the plurality of detection elements241, and each of the plurality of power generation elements251output identification information associated with a corresponding detection target. However, this example is not required to be adopted. For example, in a case where the detection elements241and the power generation elements251corresponding to the respective operators constituting the operation unit23are individually connected to the control unit31A,31B, or31C, each of the detection elements241and the power generation elements251need not output identification information associated with the corresponding detection target.

According to the respective embodiments described above, the operation unit23, the detection unit24, and the power generation unit25have different configurations. However, this example is not required to be adopted. Such a configuration which unifies one of the operators of the operation unit23, the detection elements241, and the power generation elements251may be adopted.

According to the third and fourth embodiment described above, the power reception unit34includes the wireless power reception unit341and the wired power reception unit342. However, this example is not required to be adopted. The power reception unit34is only required to have at least either one of the wireless power reception unit341and the wired power reception unit342.

According to the first to third embodiments described above, the electronic device corresponding to the operation target of the operation device2A,2B, or2C is the game device4. According to the fourth embodiment described above, the electronic device corresponding to the operation target of the operation device2A,2B, or2C is the server SVB communicable with the information processing device7. However, this example is not required to be adopted. The electronic device corresponding to the operation target operated by the operation device of the present disclosure may be an electronic device other than a game device, such as a television and AV (audiovisual) equipment.

Moreover, according to the fourth embodiment, the information processing device7is not necessarily required to display a screen during execution, which is a processing result obtained by the server SVB, on the display device6. The information processing device7is only required to give a notification of the operation mode of the operation device2A,2B, or2C.

According to the first to third embodiments described above, the handleability determination unit444of the game device4determines whether or not the game currently executed is handleable in the second mode of the operation device2A,2B, or2C on the basis of information acquired from the server SVA. Moreover, according to the fourth embodiment described above, the handleability determination unit444of the server SVB determines whether or not the game currently executed is handleable in the second mode of the operation device2A,2B, or2C on the basis of information acquired from the storage unit42. However, this example is not required to be adopted. The handleability determination unit444may determine whether or not the game currently executed is handleable in the second mode on the basis of other information.

Moreover, this information associated with the game may be stored in the storage unit42of the game device4beforehand or may be acquired from an external device other than the servers SVA and SVB. Further, the information associated with the game may be contained in a game program.

According to the respective embodiments described above, the operation unit23includes the touch pad235and the sticks236. However, this example is not required to be adopted. At least either one of the touch pad235and the sticks236may be eliminated from the operation unit23.

Moreover, the operation unit23includes the one direction button231, the four buttons232, the two buttons233, and the four buttons234. However, this example is not required to be adopted. The operation unit23is only required to have at least one operator.

Further, the operation devices2A,2B, and2C each having the layout depicted inFIG.2by way of example have been presented as the operation device of the present disclosure. However, this example is not required to be adopted. The operation device of the present disclosure is not limited to the operation devices2A,2B, and2C each having the layout described above, but may be an operation device having a layout adoptable as a remote controller of a television or the like, for example. Accordingly, the operation device of the present disclosure is not limited to a game controller.

According to the respective embodiments described above, the handleability determination unit444determines whether or not the game currently executed is handleable in the second mode. However, this example is not required to be adopted. For example, in a case where the user selects a game to be executed on a game selection screen or the like, a notification unit may give a notification indicating a determination result obtained by determining whether or not the selected game is handleable in the second mode.

In addition, the handleability determination unit444may be eliminated. In this case, when the mode determination unit443determines that the operation mode of the operation device has been switched from the first mode to the second mode, the notification unit such as the display control unit445may give a notification indicating the operation mode of the operation device by use of the display device6, the information processing device7, or the like.

[Summary of Present Disclosure] A summary of the present disclosure will hereinafter be additionally noted.

An operation device according to a first aspect of the present disclosure includes an operation unit, a power generation element that generates power according to an operation of the operation unit, a battery that supplies power, and a communication unit that transmits an operation signal corresponding to the operation unit that has been operated, in which the communication unit transmits the operation signal by use of power supplied from the battery, in a case where a residual quantity of the battery is a predetermined residual quantity or larger, and the communication unit transmits the operation signal by use of power generated by the power generation element, in a case where the residual quantity of the battery is smaller than the predetermined residual quantity.

This configuration achieves transmission of an operation signal by use of power supplied from the battery, in a case where the residual quantity of the battery is the predetermined residual quantity or larger. Accordingly, transmission of an operation signal is achievable without delay. On the other hand, in a case where the residual quantity of the battery is smaller than the predetermined residual quantity, a transmission delay of an operation signal may be produced. However, the operation device does not become disabled. Accordingly, usability of the operation device improves.

An operation device according to a second aspect of the present disclosure includes an operation unit, a power generation element that generates power according to an operation of the operation unit, a battery that supplies power, a switching unit that switches an operation mode according to an operation performed by a user, and a communication unit that transmits an operation signal corresponding to the operation unit that has been operated, in which the communication unit transmits the operation signal by use of power accumulated in the battery, in a case where the operation mode is a first mode, and the communication unit transmits the operation signal by use of power generated by the power generation element, in a case where the operation mode is a second mode.

According to this configuration, the user is allowed to select the desired operation mode from the first mode which consumes power accumulated in the battery but achieves transmission of an operation signal without delay, and the second mode which may produce a delay but preserves power accumulated in the battery. In this manner, even in a case where a certain residual quantity remains in the battery, for example, this residual quantity can be preserved in the battery by switching to the second mode. Accordingly, replacement of the battery and the frequency of charging can be both reduced. As a result, usability of the operation device improves.

In the second aspect described above, there may be further provided a mode switching unit that switches the operation mode to either one of the first mode and the second mode according to a switching signal input from the switching unit, and the switching unit may output the switching signal by use of power supplied from the battery.

According to this configuration, the switching unit is unable to output a switching signal unless power sufficient for outputting a switching signal from the switching unit remains in the battery. Accordingly, in a case where only a small residual quantity remains in the battery, the operation mode of the operation device cannot switch to the first mode of the first and second modes, as the mode for transmitting an operation signal by use of power supplied from the battery. In this manner, regulation of switching to the first mode is achievable according to the residual quantity of the battery. As a result, usability of the operation device further improves.

An operation device according to a third aspect of the present disclosure include an operation unit, a power generation element that generates power according to an operation of the operation unit, a battery that supplies power, a power reception unit that receives power externally supplied, and a communication unit that transmits an operation signal corresponding to the operation unit that has been operated. In a case where power received by the power reception unit has a predetermined value or higher, the communication unit transmits the operation signal by use of the power supplied from the battery charged by power received by the power reception unit, and in a case where the power received by the power reception unit has a value lower than the predetermined value, the communication unit transmits the operation signal by use of the power generated by the power generation element.

This configuration achieves transmission of an operation signal by use of power generated by the power generation element in a case where received power is not sufficiently high, e.g., in a case where power lower than power sufficient for transmitting an operation signal is received, even when power is supplied from the outside. Therefore, even in the case of supply of power from the outside, the operation signal transmission state is switchable according to the power supplied from the outside. Accordingly, usability of the operation device improves.

In the first to third aspects described above, there may be further provided a notification unit that gives a notification of an operation state of the operation device by presenting a lighting state. The notification unit may light to give a notification that the communication unit transmits the operation signal by use of the power supplied from the battery, and the notification unit may not light to give a notification that the communication unit transmits the operation signal by use of the power generated by the power generation element.

This configuration allows the user to check whether the operation signal has been transmitted by use of power of the battery, or the operation signal has been transmitted by use of power generated by the power generation element on the basis of the lighting state of the notification unit. Accordingly, usability of the operation device further improves.

In the first to third aspects described above, there may be further provided a notification unit that gives a notification of an operation state of the operation device by presenting a lighting state, and the notification unit may light in a first color to give a notification that the communication unit transmits the operation signal by use of the power supplied from the battery, and the notification unit may light in a second color different from the first color to give a notification that the communication unit transmits the operation signal by use of the power generated by the power generation element.

This configuration can offer advantageous effects similar to those of the configuration including the notification unit which gives the notification of the operation state of the operation device by lighting or not lighting.

In the first to third aspects described above, the communication unit may include a first communication unit that transmits the operation signal by use of the power supplied from the battery, and a second communication unit that transmits the operation signal by use of the power generated by the power generation element, and the operation signal may contain information indicating whether the operation signal has been transmitted by use of the power supplied from the battery, or the operation signal has been transmitted by use of the power supplied from the power generation element.

Note that the operation signal may contain information indicating whether the operation signal has been transmitted from the first communication unit, or transmitted from the second communication unit, as the information indicating whether the operation signal has been transmitted by use of the power supplied from the battery, or the operation signal has been transmitted by use of the power supplied from the power generation element.

According to this configuration, the state of the operation device is recognizable on the basis of the operation signal received by a reception device which receives the operation signal from the operation device.

In the first to third aspects described above, there may be further provided a transmission regulation unit that regulates transmission of the operation signal from the second communication unit in a case where the first communication unit transmits the operation signal.

This configuration can prevent transmission of an operation signal from each of the first communication unit and the second communication unit in response to an operation performed for the same operation unit.

In the first to third aspects described above, there may be further provided a charging unit that charges the battery by use of the power generated by the power generation element.

This configuration allows charging of the battery while using the operation device. Accordingly, usability of the operation device further improves.

In the first to third aspects described above, there may be further provided a vibration unit that generates vibration at a time of transmission of the operation signal.

This configuration can notify the user of the fact that an operation signal has been transmitted in response to an operation. Accordingly, usability of the operation device further improves.

In the first to third aspects described above, there may be further provided a housing, and a touch pad provided in such a manner as to be able to be inserted and protruded into the housing, and the operation unit may include the touch pad.

This configuration achieves transmission of the operation signal by an operation of the touch pad in a manner of a button. Accordingly, general versatility of the operation device improves.

An operation system according to a fourth aspect of the present disclosure includes an operation device that transmits an operation signal, and an electronic device that receives the operation signal and operates, and the operation device includes an operation unit, a power generation element that generates power according to an operation of the operation unit, a battery that supplies power, and a transmission unit that transmits the operation signal corresponding to the operation unit that has been operated. The operation device operates in either one of a first mode where the transmission unit transmits the operation signal by use of power supplied from the battery and a second mode where the transmission unit transmits the operation signal by use of power generated by the power generation element. The operation signal contains information indicating an operation mode of the operation device, and the electronic device includes a reception unit that receives the operation signal from the operation device, a mode determination unit that determines the operation mode of the operation device on the basis of the operation signal received by the reception unit, and a notification unit that gives a notification indicating the operation mode of the operation device, when the mode determination unit determines that the operation mode of the operation device has been switched from the first mode to the second mode.

According to this configuration, the electronic device gives a notification indicating the operation mode of the operation device using the notification unit when the operation mode of the operation device is switched to the second mode which may produce a transmission delay of an operation signal from the time of the operation performed by the user. In other words, the notification unit gives a notification that the operation mode of the operation device has been switched to the second mode. This configuration can notify the user of switching to the second mode when the operation mode of the operation device is switched to the second mode without intention of the user, for example. Accordingly, usability of the operation system improves.

In the fourth aspect described above, the electronic device may be a game device that executes a game. The game device may include a handleability determination unit that determines whether or not the game is handleable in the second mode, when the mode determination unit determines that the operation mode is the second mode, and the notification unit may give a notification that the game is not handleable in the second mode, when the handleability determination unit determines that the game is not handleable in the second mode.

According to this configuration, the game device as the electronic device can notify the user of the fact that the game currently executed is not handleable in the second mode when the operation mode of the operation device is switched to the second mode. Accordingly, usability of the operation system constituted by the game system further improves.

An operation system according to a fifth aspect of the present disclosure includes an operation device that transmits an operation signal, an information processing device that receives the operation signal, and a server that communicates with the information processing device. The operation device includes an operation unit, a power generation element that generates power according to an operation of the operation unit, a battery that supplies power, and a transmission unit that transmits the operation signal corresponding to the operation unit that has been operated. The operation device operates in either one of a first mode where the transmission unit transmits the operation signal by use of power supplied from the battery and a second mode where the transmission unit transmits the operation signal by use of power generated by the power generation element. The operation signal contains information indicating an operation mode of the operation device. The information processing device transmits the operation signal received from the operation device to the server, and receives a processing result obtained by the server from the server. The server includes a mode determination unit that determines the operation mode of the operation device on the basis of the operation signal received from the information processing device, and a notification unit that transmits, to the information processing device, the processing result to be given by the information processing device as a notification indicating the operation mode of the operation device, when the mode determination unit determines that the operation mode of the operation device has been switched from the first mode to the second mode.

According to this configuration, similarly to the operation system of the fourth aspect, the information processing device gives a notification indicating the operation mode of the operation device on the basis of a processing result received from the server when the operation mode of the operation device is switched to the second mode which may produce a transmission delay of an operation signal from an operation performed by the user. Specifically, the notification unit of the server causes the information processing device to give a notification that the operation mode of the operation device has been switched to the second mode. This configuration can notify the user of the fact of switching to the second mode when the operation mode of the operation device is switched to the second mode without intention of the user, for example. Accordingly, usability of the operation system improves.

In the fifth aspect described above, the server may include an execution unit that executes a game according to the operation signal received from the information processing device, and a handleability determination unit that determines whether or not the game is handleable in the second mode, when the mode determination unit determines that the operation mode is the second mode. The notification unit may transmit, to the information processing device, the processing result to be given by the information processing device as a notification that the game is not handleable in the second mode, when the handleability determination unit determines that the game is not handleable in the second mode.

According to this configuration, the information processing device can notify the user of the fact that the game currently executed is not handleable in the second mode when the operation mode of the operation device is switched to the second mode. Accordingly, usability of the operation system further improves.

In the fourth and fifth aspects described above, the handleability determination unit may determine that the game is not handleable in the second mode, in a case where a category of the game to be executed is a predetermined category.

Note herein that a simulation game or a command selective system role playing game can advance a game even if a period from an operation by a user to transmission of an operation signal is relatively long. Accordingly, games in these categories are allowed to proceed even with long latency. On the other hand, games such as a shooting game and an action game are difficult to advance if transmission of an operation signal is delayed from an operation by a user. Accordingly, games in these categories may cause a problem in progress of the games if latency is long.

However, in a case where the game currently executed is not handleable in the second mode and the operation mode of the operation device is switched to the second mode, the configuration described above gives a notification of this fact. Accordingly, the user is easily urged to carry out operations such as charging of the battery.

In the fourth and fifth aspects described above, the handleability determination unit may determine whether or not the game is handleable in the second mode, on the basis of information associated with the game.

The configuration described above can determine whether or not the game currently executed is handleable in the second mode on the basis of the information associated with the game.

REFERENCE SIGNS LIST

1A,1B: Game system (operation system)2A,2B,2C: Operation device23: Operation unit231to234: Button235: Touch pad236: Stick24: Detection unit241: Detection element25: Power generation unit251: Power generation element26: Charging unit27: Notification unit28: Vibration unit29,29C: Communication unit (transmission unit)291: First communication unit292: Second communication unit293: Wired communication unit30: Storage unit31A,31B,31C: Control unit311,311C: First control unit312,312C: Second control unit313,313C: Charging control unit314,314C: Mode switching unit32: Switching unit33: Connection unit33: Power reception unit341: Wireless power reception unit342: Wired power reception unit4: Game device (electronic device)41: Communication unit (reception unit)42: Storage unit43: Memory44: Control unit441: Execution unit442: Information acquisition unit443: Mode determination unit444: Handleability determination unit445: Display control unit (notification unit)6: Display device7: Information processing deviceBT: BatterySVA: Server (external device)SVB: Server