Patent Description:
In recent years, smartphones capable of displaying various types of information as well as being used for phone calls have become widespread. Patent Literature <NUM> discloses a foldable smartphone having both portability and a large screen display. This smartphone is in a small screen display state when the main body is closed, and is in a large screen display state when the main body is opened. When the first user makes a call with the second user by using the smartphone, the smartphone is usually used with the main body closed. Then, the phone number of a phone device used by the second user and the name of the second user may be displayed on the small screen of the smartphone.

By the way, in a case where the first user makes a call with the second user, if information regarding the second user can be known during the call, good communication with the second user can be made. However, in the conventional smartphone, in a case where information regarding the second user other than the phone number and the name is displayed on a large screen during a call, the first user needs to operate the smartphone in the large screen display state.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve operability of a mobile phone device. Prior art includes: <CIT>, which discloses a prior art device.

According to the present invention, the first user can display the second image indicating the second information on the second user on the display device by switching the display state of the display device from the first display state to the second display state. Therefore, operability of the mobile phone device is improved.

<FIG> are perspective views illustrating an appearance of a mobile phone device 100A according to a first embodiment of the present disclosure. The mobile phone device 100A according to the present embodiment is a smartphone. Note that the mobile phone device 100A may be a mobile phone other than a smartphone or may be a portable information processing device having a call function. Furthermore, in the following description, it is assumed that the first user uses the mobile phone device 100A to talk with the second user who is a user of another phone device.

As illustrated in <FIG>, the mobile phone device 100A includes housings <NUM> and <NUM> and a hinge <NUM>. Each of the housings <NUM> and <NUM> is a housing having a rectangular parallelepiped plate shape. The housing <NUM> has a rectangular display surface <NUM> on one of the front and back two surfaces, and the housing <NUM> has a rectangular display surface <NUM> on one of the front and back two surfaces. The display surfaces <NUM> and <NUM> are display surfaces of a display device <NUM> (see <FIG>) included in the mobile phone device 100A. In the present embodiment, the display surfaces <NUM> and <NUM> have the same display area. In addition, the housing <NUM> is provided with a speaker <NUM> and a microphone <NUM>. The speaker <NUM> and the microphone <NUM> are used, for example, when the first user uses the mobile phone device 100A to talk with the second user.

An end surface 41E is one of two end surfaces on the long side of the front and back two surfaces of the housing <NUM> among four end surfaces. Similarly, the housing <NUM> has four rectangular end surfaces surrounding the front and back two surfaces thereof. An end surface 42E is one of two end surfaces on the long side of the front and back two surfaces of the housing <NUM> among the four end surfaces. The hinge <NUM> is a so-called hinge that rotatably connects the housings <NUM> and <NUM>. The hinge <NUM> connects a long side opposite to the long side facing the display surface <NUM> on the end surface 41E and a long side opposite to the long side facing the display surface <NUM> on the end surface 42E.

In the present embodiment, the hinge angle formed by the display surfaces <NUM> and <NUM> changes as the hinge <NUM> rotates. In the present embodiment, by setting the hinge angle to <NUM> degrees to cause the display surfaces <NUM> and <NUM> to face outward as illustrated in <FIG>, the first user can bring the display state of the display device <NUM> of the mobile phone device 100A into a first display state in which display is performed only on the display surface <NUM>. In addition, by setting the hinge angle to <NUM> degrees, the first user can cause the display surfaces <NUM> and <NUM> to face the first user as illustrated in <FIG>. By this operation, the display state of the display device <NUM> of the mobile phone device 100A becomes a second display state in which display is performed on both the display surfaces <NUM> and <NUM>. The display area in the second display state is larger than the display area in the first display state.

<FIG> is a block diagram illustrating a hardware configuration of the mobile phone device 100A. As illustrated in <FIG>, the mobile phone device 100A is a computer including a processing device <NUM>, a storage device <NUM>, a communication device <NUM>, the display device <NUM>, an operating device <NUM>, the speaker <NUM>, the microphone <NUM>, and an opening/closing detection device <NUM>. The respective elements of the mobile phone device 100A are connected to each other by a single or a plurality of buses. Note that the term "device" in the present application may be replaced with another term such as a circuit, a device, or a unit. In addition, each element of the mobile phone device 100A includes one or a plurality of devices, and some elements of the mobile phone device 100A may be omitted.

The processing device <NUM> is a processor that controls the entire mobile phone device 100A, and includes, for example, one or a plurality of chips. The processing device <NUM> includes, for example, a central processing unit (CPU) including an interface with a peripheral device, an arithmetic device, a register, and the like. Some or all of functions of the processing device <NUM> may be implemented by hardware such as a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA). The processing device <NUM> executes various types of processing in parallel or sequentially.

The storage device <NUM> is a recording medium readable by the processing device <NUM>, and stores a plurality of programs to be executed by the processing device <NUM> and various data to be used by the processing device <NUM>. The plurality of programs includes a control program PR. The various types of data include a table TBL. The storage device <NUM> includes, for example, a nonvolatile storage circuit such as a read only memory (ROM), an erasable programmable ROM (EPROM), or an electrically erasable programmable ROM (EEPROM), and a volatile storage circuit such as a random access memory (RAM).

<FIG> is an explanatory diagram illustrating stored contents of the table TBL. The table TBL stores data of a so-called telephone directory. As illustrated in <FIG>, the table TBL stores a plurality of records r. One record r is a set of a phone number and a name. The name includes a nickname, a name, and a designation. The names include "first name", "surname", "name", "company name", "trade name", and "facility name".

The communication device <NUM> is a device that communicates with another device via a communication network such as a mobile communication network or the Internet. The communication device <NUM> is also referred to as, for example, a network device, a network controller, a network card, or a communication module. For example, an application program received by the communication device <NUM> from a distribution server (not illustrated) via a communication network is stored in the storage device <NUM>. Furthermore, the communication device <NUM> includes a wireless device that performs short-range wireless communication such as Bluetooth (registered trademark). In addition, the communication device <NUM> outputs communication information indicating a communication status to the processing device <NUM>. The communication status includes a call made to another phone device, an incoming call from another phone device, and establishment of communication with another phone device.

The display device <NUM> displays various images on the above-described display surfaces <NUM> and <NUM> under control by the processing device <NUM>. For example, various display panels such as a liquid crystal display panel and an organic EL display panel are suitably used as the display device <NUM>. A display device having the display surface <NUM> and a display device having the display surface <NUM> are physically separate display devices. However, in the mobile phone device 100A according to the present embodiment, one image may be displayed across the display surfaces <NUM> and <NUM>, or display by the display surface <NUM> and display by the display surface <NUM> may be linked with each other to execute one combined process. Therefore, in the present embodiment, the display device having the display surface <NUM> and the display device having the display surface <NUM> are treated as one display device <NUM>.

In addition, the display device <NUM> can switch the display state between the first display state and the second display state in which the display area is larger than the display area in the first display state.

The operating device <NUM> is a device for inputting information to be used by the mobile phone device 100A. The operating device <NUM> receives an operation by a user. Specifically, the operating device <NUM> receives an operation for inputting signs such as numbers and characters, and an operation for selecting an icon to be displayed on the display device <NUM>. For example, a touch panel that detects contact with the display surface of the display device <NUM> is suitable as the operating device <NUM>. Note that the operating device <NUM> may include a plurality of operators that can be operated by the user. The first user can input a phone number of another phone device used by the second user by using the operating device <NUM>.

The speaker <NUM> is a device that converts an electric signal into sound. The processing device <NUM> includes a DA converter, and an analog signal obtained by converting a digital signal by the DA converter is supplied to the speaker <NUM>. Alternatively, a DA converter may be provided at a previous stage of the speaker <NUM>. In this case, the processing device <NUM> outputs audio data to the DA converter. When the first user uses the mobile phone device 100A to talk with the second user, the speaker <NUM> outputs a voice of the second user. In the example illustrated in <FIG>, the speaker <NUM> is provided in an upper portion of the display device <NUM>, but the present disclosure is not limited thereto. For example, a first speaker may be provided in the upper portion of the display device <NUM>, and a second speaker may be provided in a lower portion of the display device <NUM>. When the two speakers are provided, the speaker <NUM> is a general term for the first speaker and the second speaker.

The microphone <NUM> is a device that converts sound into an electric signal. The processing device <NUM> includes an AD converter. The processing device <NUM> converts an analog audio signal output from the microphone <NUM> into digital sound data by the AD converter, and uses the sound data for processing. Alternatively, an AD converter may be provided at a subsequent stage of the microphone <NUM>. In this case, the audio signal is converted into audio data by the AD converter. The audio data is supplied to the processing device <NUM>. When the first user uses the mobile phone device 100A to talk with the second user, a voice of the first user is input to the microphone <NUM>.

The opening/closing detection device <NUM> is a device that detects a display state of the display device <NUM>. Specifically, the opening/closing detection device <NUM> includes a sensor that detects an angle formed by the display surfaces <NUM> and <NUM>, that is, a hinge angle of the hinge <NUM> and outputs a detection signal having a magnitude corresponding to the hinge angle. When the hinge angle θ indicated by the detection signal is within the range of, for example, <NUM>° < θ < <NUM>°, the opening/closing detection device <NUM> detects that the display state of the display device <NUM> is the first display state (closed state). When the hinge angle θ indicated by the detection signal is within the range of, for example, <NUM>° < θ < <NUM>°, the opening/closing detection device <NUM> detects that the display state of the display device <NUM> is the second display state (open state). The opening/closing detection device <NUM> outputs detection information 18a indicating a result of the detection to the processing device <NUM>.

The processing device <NUM> reads the control program PR stored in the storage device <NUM> and executes the read control program PR to implement various functions. <FIG> is a block diagram illustrating the functions of the processing device <NUM>.

The processing device <NUM> functions as a communication unit 110A, an image generation unit 120A, a detection unit <NUM>, and a display control unit <NUM> by executing the control program PR.

The communication unit 110A executes a call between the first user of the mobile phone device 100A and the second user by using the communication device <NUM>, the speaker <NUM>, and the microphone <NUM>. Call modes include a normal call and a hands-free call. The normal call is a mode in which the first user presses the mobile phone device 100A against his/her face to make a call. The hands-free call is a mode in which the first user places the mobile phone device 100A away from his/her face to make a call. When the call mode is the hands-free call, the communication unit 110A increases the loudness of the sound output from the speaker <NUM> as compared with a case where the call mode is the normal call. Specifically, the communication unit 110A controls the amplitude of an audio signal supplied to the speaker <NUM> according to the call mode.

Further, the communication unit 110A outputs identification information ID for identifying another phone device used by the second user. Details of the identification information ID will be described later.

The image generation unit 120A generates a first image D1 and a second image D2. When the first user makes a call with the second user, the first image D1 indicates first information including the phone number of another phone device. In a case where the image generation unit 120A generates the first image D1, the image generation unit 120A acquires the identification information ID for identifying another phone device from the communication unit 110A. The identification information ID is, for example, the phone number of another phone device. The identification information ID may be, for example, a name of the second user. Alternatively, the identification information ID includes at least one of the phone number of another phone device and the name of the second user. The identification information ID in the present embodiment includes the phone number of another phone device and the name of the second user. The communication unit 110A identifies the name of the second user by referring to the table TBL based on the phone number of another phone device, and generates the identification information ID including the phone number and the name of the identified second user.

<FIG> is a plan view illustrating an example of the first image D1 displayed on the display surface <NUM> of the display device <NUM>. In the first image D1 illustrated in <FIG>, an image of text indicating the second user is arranged in a region A11, an image of text of a phone number "<NUM>-<NUM>-<NUM>" is arranged in a region A21, and an icon indicating that a call is being made is arranged in a region A31. The first information in this example is that the second user is "ABC pizza", the phone number of another phone device is "<NUM>-<NUM>-<NUM>", and a call is in progress.

The second image D2 indicates second information related to the second user including information other than the first information. The image generation unit 120A generates the second image D2 based on the identification information ID. The image generation unit 120A specifies the address of the second user based on, for example, the phone number or the name of the second user. For example, the image generation unit 120A uses a web browser to search for the address based on the phone number or the name of the second user so as to specify the address of the second user. Furthermore, the image generation unit 120A may use a map application to generate an image of a map including the specified address, and may use the image of the map as the second image D2. In this case, the second image D2 may be a map in which the position indicating the address of the second user is the center. By locating the address of the second user at the center of the map in this manner, it is possible to notify the first user of the situation around the address of the second user. In addition, for example, the image generation unit 120A may use a web browser to search for the address based on the phone number or the name of the second user so as to specify a service provided by the second user, generate an image related to the specified service, and set the image as the second image D2.

<FIG> is a plan view illustrating an example of the second image D2 displayed on the display surfaces <NUM> and <NUM> of the display device <NUM>. In the second image D2 illustrated in <FIG>, an image of a map including the address of the second user is arranged in a region B11, an image indicating a street view of the address of the second user is arranged in a region B21, and an image related to the service of the second user is arranged in a region B31. The second information in this example is the map including the address of the second user, the street view of the address of the second user, and the content of the service provided by the second user. The first user can know the map including the address of "ABC pizza" that is the second user, a menu of "ABC pizza", and the like only by talking on the phone with the second user.

The detection unit <NUM> illustrated in <FIG> detects a switching operation by the first user to switch the display state of the display device <NUM> from the first display state to the second display state. Specifically, the detection unit <NUM> detects that the display state of display device <NUM> is switched from the first display state to the second display state based on the detection information 18a.

When the display state of the display device <NUM> indicated by the detection information 18a is the first display state, the display control unit <NUM> causes the display device <NUM> to display the first image D1. In this example, when the display state of the display device <NUM> is the first display state, the display control unit <NUM> displays the first image D1 on the display surface <NUM> of the display device <NUM>. For example, the display control unit140 displays the first image D1 illustrated in <FIG> on the display surface <NUM> of the display device <NUM>.

Furthermore, when the switching operation is detected by the detection unit <NUM>, the display control unit <NUM> changes the display state of the display device <NUM> to the second display state and displays the second image D2 on the display device <NUM>. For example, the display control unit <NUM> displays the second image D2 illustrated in <FIG> on the display surfaces <NUM> and <NUM> of the display device <NUM>.

When the first user switches the display state of the display device <NUM> from the first display state to the second display state, the first user rotates the housing <NUM> illustrated in <FIG> in a direction of an arrow Q. In this change of the display state, it is desirable that the second image D2 is immediately displayed on the display device <NUM> when the display state of the display device <NUM> becomes the second display state. When the second image D2 can be prepared while the display state of the display device <NUM> is the first display state, the second image D2 can be displayed on the display device <NUM> from the start of the second display state.

Therefore, in a case where a call between the first user and the second user is started while the display state of the display device <NUM> is the first display state, the image generation unit 120A generates the second image D2. Specifically, when communication is established between the mobile phone device 100A and another phone device, the communication unit 110A outputs the identification information ID to the image generation unit 120A. The image generation unit 120A generates the second image ID based on the identification information ID from the timing of acquiring the identification information ID from the communication unit 110A.

In a case where the display state of the display device <NUM> is the first display state, the mobile phone device 100A is smaller than that in a case where the display state of the display device <NUM> is the second display state. Therefore, it is common for the first user to talk with the second user according to the mode for a normal call. In a call at a regular place, the first user holds the mobile phone device 100A with one hand, presses the speaker <NUM> against the ear, brings the microphone <NUM> close to the mouth, and makes a call. In a case where the display state of the display device <NUM> is the first display state, the first user recognizes the phone number or the like of another phone device by viewing the first image D1 when there is an incoming call or a call. After confirming the phone number or the like of another phone device, the first user presses the mobile phone device 100A against the face to make a call.

On the other hand, when the display state of the display device <NUM> becomes the second display state, detailed information regarding the second user is displayed on the display device <NUM>. For this reason, the first user often talks with the second user while viewing the second image D2 displayed on the display device <NUM>. Therefore, when the display state of the display device <NUM> is switched from the first display state to the second display state during a call, it is desirable to switch to the hands-free call even if the first user does not operate the operating device <NUM>.

Therefore, when the display state of the display device <NUM> is the second display state at the timing when the switching operation is detected by the detection unit <NUM>, the communication unit 110A of the present embodiment makes a voice of the second user output from the speaker <NUM> louder than a voice of the second user output from the speaker <NUM> when the display state of the display device <NUM> is the first display state. Specifically, the communication unit 110A makes the amplitude of an audio signal to be output to the speaker <NUM> in the second display state larger than the amplitude of an audio signal to be output to the speaker <NUM> in the first display state. Note that, in a case where the speaker <NUM> includes a plurality of speakers, the speaker that outputs a voice of the second user in the first display state may be different from the speaker that outputs a voice of the second user in the second display state. For example, the speaker that outputs a voice of the second user in the first display state may be the first speaker, and the speaker that outputs a voice of the second user in the second display state may be the second speaker. When the speaker that outputs a voice of the second user is changed according to the display state, it is preferable that the voice of the second user is louder in the second display state than in the first display state. By using different speakers, it is possible to selectively use a speaker for a small volume and a speaker for a large volume.

The image generation unit 120A may notify the communication unit 110A that the generation of the second image D2 is completed. When acquiring the notification, the communication unit 110A may cause the speaker <NUM> to output a predetermined sound that prompt to change the display state of the display device <NUM> from the first display state to the second display state. By outputting the predetermined sound from the speaker <NUM>, the first user can know that the second image D2 is ready to be displayed. Note that, in a case where the generation of the second image D2 is completed, in order to notify the first user of the completion, the image generation unit 120A may generate an image prompting a change in the display state, and output the generated image to the display control unit <NUM>. The display control unit <NUM> causes the display device <NUM> to display the image. Alternatively, a vibrator may be provided in 100A, and the first user may be notified that the generation of the second image D2 is completed by driving the vibrator. In a case where the notification is made by vibration, when the generation of the second image D2 is completed, the image generation unit 120A may output a control signal for driving the vibrator for a predetermined time to the vibrator.

Next, an operation of the mobile phone device 100A according to the first embodiment will be described. <FIG> is a flowchart illustrating an operation of the mobile phone device 100A. The processing device <NUM> determines whether or not the display state of the display device <NUM> is the first display state based on the detection information 18a (step S1). When the determination result of step S1 is negative, the processing device <NUM> repeats step S1 until the determination result of step S1 is affirmative. When the determination result of step S1 is affirmative, the processing device <NUM> determines whether a call between the first user and the second user has been started (step S2). The start of the call means that communication has been established between the mobile phone device 100A and another phone device used by the second user. Specifically, the processing device <NUM> determines that the call has started based on communication information output from the communication device <NUM>.

In a case where the determination result of step S2 is negative, the processing device <NUM> returns the processing to step S1. On the other hand, when the determination result of step S2 is affirmative, the processing device <NUM> generates the first image D1 based on the identification information ID (step S3).

Next, the processing device <NUM> causes the display device <NUM> to display the first image D1 (step S4). Since the display state of the display device <NUM> is the first display state, the first image D1 is displayed on the display surface <NUM>. Since the first image D1 indicates the first information including the phone number of another phone device, the first user can confirm the phone number of another phone device in a state where the mobile phone device 100A is closed. Since the identification information ID in this example includes the name of the second user, as illustrated in <FIG>, the first image D1 includes an image "ABC pizza" of the name of the second user located in the region A21 in addition to the image "<NUM>-<NUM>-<NUM>" of the phone number located in the region A11.

Next, the processing device <NUM> generates the second image D2 based on the identification information ID (step S5). The second image D2 indicates the second information including information other than the first information. For example, as illustrated in <FIG>, in the second image D2, as information other than the phone number "<NUM>-<NUM>-<NUM>" and the name "ABC pizza" of the second user, a map including the address of the second user is arranged in the region B11, and an image indicating the content of the service provided by the second user is arranged in the region B31.

Next, the processing device <NUM> determines whether or not a switching operation by the first user to switch the display state of the display device <NUM> from the first display state to the second display state has been detected (step S6). Specifically, the processing device <NUM> determines whether or not the switching operation has been detected based on the detection information 18a.

When the determination result of step S6 is negative, the processing device <NUM> determines whether the call has been ended based on the communication information (step S10). In a case where the determination result of step S10 is affirmative, the processing device <NUM> ends the processing. On the other hand, in a case where the determination result of step S10 is negative, the processing device <NUM> returns the processing to step S6.

When the determination result of step S6 is affirmative, the processing device <NUM> changes the display state of the display device <NUM> from the first display state to the second display state (step S7). Specifically, the processing device <NUM> changes the display using only the display surface <NUM> to the display using the display surfaces <NUM> and <NUM>.

Next, the processing device <NUM> changes the call mode from the normal call to the hands-free call (step S9). Specifically, the processing device <NUM> increases the amplitude of an audio signal to be output to the speaker <NUM> as compared with the case of the normal call. By changing to the hands-free call, the first user can talk with the second user while viewing the second image D2 displayed on the display surfaces <NUM> and <NUM>. Therefore, since the first user can interact with the second user while referring to the information regarding the second user displayed on the large-screen display device <NUM>, it is possible to communicate with the second user well.

The processing device <NUM> functions as the image generation unit 120A in steps S1, S2, S3, and S5. The processing device <NUM> functions as the display control unit <NUM> in steps S4, S7, and S8. The processing device <NUM> functions as the communication unit 110A in steps S9 and S10. The processing device <NUM> functions as the detection unit <NUM> in step S6.

As described above, the mobile phone device 100A according to the first embodiment includes: the display device <NUM> capable of switching the display state between the first display state and the second display state in which the display area is larger than the display area in the first display state; the communication unit 110A that executes a call between the first user of the mobile phone device 100A and the second user who makes a call using another phone device; the image generation unit 120A that generates the first image D1 indicating the first information including the phone number of another phone device based on the identification information ID for identifying another phone device, and generates the second image D2 indicating the second information related to the second user including the information other than the first information based on the identification information ID; the detection unit <NUM> that detects a switching operation by the first user to switch the display state of the display device <NUM> from the first display state to the second display state; and the display control unit <NUM> that causes the display device <NUM> to display the first image D1 in a case where the display state of the display device <NUM> is the first display state, and changes the display state of the display device <NUM> to the second display state and causes the display device <NUM> to display the second image D2 in a case where the switching operation is detected by the detection unit <NUM>.

According to the mobile phone device 100A, since the second image D2 related to the second user is displayed on the display device <NUM> in the second display state of the large screen, the first user can know information related to the second user during a call. In this case, the first user does not need to perform any input operation on the mobile phone device 100A in order to display the second image D2 on the display device <NUM>. Therefore, operability and convenience of the mobile phone device 100A are improved.

The mobile phone device 100A includes the speaker <NUM> that outputs a voice of the second user and the communication unit 110A. When the switching operation is detected by the detection unit <NUM>, the communication unit 110A makes a voice of the second user output from the speaker <NUM> louder than a voice of the second user output from the speaker <NUM> when the display state of the display device <NUM> is the first display state.

When the display state of the display device <NUM> is switched from the first display state to the second display state during a call in the normal call, it is necessary to change the call model to the hands-free call. According to the mobile phone device 100A, in a case where the switching operation is detected by the detection unit <NUM>, the call is changed to the hands-free call, so that the first user does not need to perform any input operation on the mobile phone device 100A. Therefore, operability and convenience of the mobile phone device 100A are improved. In addition, when the display state of the display device <NUM> is switched from the first display state to the second display state and then is switched again to the first display state during a call, the communication unit 110A may change the call from the hands-free call to the normal call. This is because, in a case where the first user switches to the first display state again, it is considered that the first user intends a normal call by a one-hand operation.

The mobile phone device 100A according to the first embodiment described above generates the second image D2 based on the identification information ID. A mobile phone device 100B according to a second embodiment is configured similarly to the mobile phone device 100A according to the first embodiment except that the second image D2 is generated based on the identification information ID and call information X indicating the content of a call. Hereinafter, differences between the mobile phone device 100B according to the second embodiment and the mobile phone device 100A according to the first embodiment will be described.

<FIG> is a block diagram illustrating functions implemented by the processing device <NUM> of the mobile phone device 100B executing the control program PR. By executing the control program PR stored in the storage device <NUM>, the processing device <NUM> of the mobile phone device 100B functions as a communication unit 110B instead of the communication unit 110A illustrated in <FIG>, and functions as an image generation unit 120B instead of the image generation unit 120A illustrated in <FIG>.

The communication unit 110B is different from the communication unit 110A that does not output the call information X to the image generation unit 120A in that the identification information ID and the call information X are output to the image generation unit 120B.

The image generation unit 120B generates the second image D2 based on the identification information ID and the call information X output from the communication unit 110B. The call information X indicates the content of a call when the display state of display device <NUM> is the first display state. Specifically, the image generation unit 120B specifies a keyword included in the call based on the call information X, and generates the second image D2 based on the specified keyword and the identification information ID. The keyword specifying method may be, for example, one or more words included in the utterance of the first user and included in the utterance of the second user. Alternatively, among a plurality of words included in the utterance of the first user and the utterance of the second user, a word that is used most frequently is the keyword.

For example, it is assumed that the first user talks with a doctor who is the second user via an emergency call. In addition, it is assumed that the first user needs to attempt to resuscitate the husband using an AED. <FIG> is a plan view illustrating an example of the first image D1 displayed on the display surface <NUM> of the display device <NUM>. In the first image D1 illustrated in <FIG>, an image of text indicating the emergency call is arranged in a region A12, an image of text of the phone number "<NUM>" is arranged in a region A22, and an icon indicating that a call is being made is arranged in a region A32. The first information in this example is that the call is an emergency call, the phone number of another phone device is "<NUM>", and a call is in progress.

In addition, it is assumed that the following call is made while the display state of the display device <NUM> is the first display state.

In this call, the words included in the utterance of the first user and included in the utterance of the second user are "AED" and "how to use". Therefore, the image generation unit 120B specifies "AED" and "how to use" as keywords. In addition, the image generation unit 120B specifies that the second user is compatible with a video phone based on the phone number "<NUM>" indicated by the identification information ID. Further, the image generation unit 120B generates an image related to how to use the AED as a part of the second image D2 by searching based on "AED" and "how to use" using a web browser, for example. Furthermore, the image generation unit 120B generates an image of the doctor who is the second user as a part of the second image D2. The image generation unit 120B generates an image related to a resuscitation method using an AED as a part of the second image D2.

<FIG> is a plan view illustrating an example of the second image D2 displayed on the display surfaces <NUM> and <NUM> of the display device <NUM>. In the second image D2 illustrated in <FIG>, an image regarding how to use the AED is arranged in a region B12, an image of the doctor who is the second user is arranged in a region B22, and an image regarding the resuscitation method using the AED is arranged in a region B32. The second information in this example is how to use the AED, the appearance of the second user, and the resuscitation method using the AED.

Next, an operation of the mobile phone device 100B according to the second embodiment will be described. <FIG> is a flowchart illustrating an operation of the mobile phone device 100B according to the second embodiment. The operation of the mobile phone device 100A according to the second embodiment is similar to the operation of the mobile phone device 100A according to the first embodiment except that step S5a is adopted instead of step S5 illustrated in <FIG>.

In step S5a, the processing device <NUM> generates the second image D2 based on the identification information ID and the call information X when the display state of the display device <NUM> is the first display state. The processing device <NUM> functions as the image generation unit 120B in step S5a.

As described above, the mobile phone device 100B according to the second embodiment generates the second image D2 to be displayed on the display device <NUM> based on the identification information ID and the call information X when the display state of the display device <NUM> is the second display state. Therefore, the mobile phone device 100B can generate the second image D2 in consideration of the content of the call in the first display state. Therefore, useful information is provided to the first user as compared with a case where the second image D2 is generated based on the identification information ID without consideration of the call information X. As a result, the convenience of the mobile phone device 100B is improved.

Note that information displayed in the region B12 and the region B32 may be transmitted from the mobile phone device <NUM> to the terminal device of the second user. For example, when the second user is a doctor, the information is displayed on the terminal device, so that the doctor can confirm the information displayed on the mobile phone device <NUM> of the first user. Therefore, the doctor can explain the coping method and the like to the first user more easily by making a call while grasping the obtained information.

<FIG> are perspective views illustrating an appearance of a mobile phone device 100C according to a third embodiment of the present disclosure. The mobile phone device 100C according to the present embodiment is different from the mobile phone device 100A according to the first embodiment in the detailed configuration of the display device <NUM>. In addition, the mobile phone device 100C is different from the mobile phone device 100A in that a communication unit 110C is used instead of the communication unit 110A.

The mobile phone device 100C includes housings <NUM> and <NUM> and a hinge <NUM> as in the first embodiment. In the first embodiment, the mobile phone device 100A has the two display surfaces <NUM> and <NUM>. On the other hand, the mobile phone device 100C according to the present embodiment has three rectangular display surfaces <NUM>, <NUM>, and <NUM>. Specifically, the housing <NUM> has the display surfaces <NUM> and <NUM> on its front and back two surfaces, respectively, and the housing <NUM> has the display surface <NUM> on one of its front and back two surfaces. The hinge <NUM> connects a long side of the rectangular end surface 41E of the housing <NUM> facing the display surface <NUM> and a long side of the rectangular end surface 42E of the housing <NUM> facing the display surface <NUM>.

In the present embodiment, the hinge angle formed by the display surfaces <NUM> and <NUM> changes as the hinge <NUM> rotates. In the present embodiment, by setting the hinge angle to <NUM> degrees, the user can set the display state of the display device <NUM> of the mobile phone device 100C to the first display state in which the display surfaces <NUM> and <NUM> face each other and display is performed only on the display surface <NUM> facing outward as illustrated in <FIG>. In the present embodiment, by setting the hinge angle to <NUM> degrees, the first user can set the display state of the display device <NUM> of the mobile phone device 100C to the second display state in which the display surfaces <NUM> and <NUM> face outward and display is performed on both the display surfaces <NUM> and <NUM> as illustrated in <FIG>. Here, the total display area of the display surfaces <NUM> and <NUM> is larger than the display area of the display surface <NUM>. Therefore, the second display state is a display state in which the display area is larger than that in the first display state.

A first speaker 16a and a first microphone 17a that are used when the display state of the display device <NUM> is the first display state are disposed on a surface of the housing <NUM> on which the display surface <NUM> is located. A second speaker 16b and a second microphone 17b that are used when the display state of the display device <NUM> is the second display state are disposed on a surface of the housing <NUM> on which the display surface <NUM> is located.

<FIG> is a block diagram illustrating functions implemented by the processing device <NUM> of the mobile phone device 100C executing the control program PR. By executing the control program PR stored in the storage device <NUM>, the processing device <NUM> of the mobile phone device 100C functions as the communication unit 110C instead of the communication unit 110A illustrated in <FIG>.

When the display state of the display device <NUM> becomes the first display state, the communication unit 110C converts a voice of the first user into an electric signal using the first microphone 17a, and outputs a voice of the second user from the first speaker 16a.

When the display state of the display device <NUM> becomes the second display state, the communication unit 110C converts a voice of the first user into an electric signal using the second microphone 17b, and outputs a voice of the second user from the second speaker 16b.

Therefore, when the display state of the display device <NUM> is the second display state at the timing when the switching operation is detected by the detection unit <NUM>, the communication unit 110C makes a voice of the second user output from the second speaker 16b louder than a voice of the second user output from the first speaker 16a when the display state of the display device <NUM> is the first display state. As a result, even if the first user does not operate the operating device <NUM>, the normal call is switched to the hands-free call.

The mobile phone device 100C according to the third embodiment has the same effect as the mobile phone device 100A according to the first embodiment. In the third embodiment, the display surfaces <NUM> and <NUM> face each other in the first display state. Therefore, since a finger or the like of the first user does not touch the display surfaces <NUM> and <NUM>, for example, in the first display state, there is an advantage that processing such as disabling the operation on touch panels provided on the display surfaces <NUM> and <NUM> is not required.

An appearance of a mobile phone device 100D according to a fourth embodiment of the present disclosure is similar to that of the mobile phone device 100C according to the third embodiment described with reference to <FIG>. Functions of the mobile phone device 100D are the same as the functions of the mobile phone device 100C except that a communication unit 110D is used instead of the communication unit 110C and the image generation unit 120B is used instead of the image generation unit 120A.

<FIG> is a block diagram illustrating functions implemented by the processing device <NUM> executing the control program PR. By executing the control program PR stored in the storage device <NUM>, the processing device <NUM> of the third embodiment functions as the communication unit 110C instead of the communication unit 110A illustrated in <FIG>.

The mobile phone device 100D includes the image generation unit 120B described in the second embodiment. Therefore, the mobile phone device 100D generates the second image D2 based on the identification information ID and the call information X. Since this point is the same as that of the second embodiment, the mobile phone device 100D has the same effect as that of the mobile phone device 100B according to the second embodiment. In the fourth embodiment, the display surfaces <NUM> and <NUM> face each other in the first display state. Therefore, since a finger or the like of the first user does not touch the display surfaces <NUM> and <NUM>, for example, in the first display state, there is an advantage that processing such as disabling the operation on touch panels provided on the display surfaces <NUM> and <NUM> is not required.

The present disclosure is not limited to the above-described embodiments. Specific modifications are exemplified below. Two or more aspects arbitrarily selected from the following examples may be combined.

Claim 1:
A mobile phone device (100A), comprising:
a display device adapted to switch a display state between a first display state and a second display state in which a display area is larger than a display area in the first display state;
a communication unit (110A) adapted to execute a call between a first user of the mobile phone device and a second user who makes a call using another phone device;
an image generation unit adapted to generate a first image indicating first information including a phone number of the another phone device based on identification information for identifying the another phone device, and further adapted to generate a second image indicating second information related to the second user including information other than the first information based on the identification information and in consideration of the content of the call when the display state of the display device is the first display state;
a detection unit (<NUM>) adapted to detect a switching operation by the first user to switch the display state of the display device from the first display state to the second display state; and
a display control unit (<NUM>) adapted to cause the display device to display the first image in a case where the display state of the display device is the first display state, and further adapted to change the display state of the display device to the second display state and to cause the display device to display the second image in a case where the switching operation is detected by the detection unit.