Abstract:
A multi-function remote controller includes a transmitter to transmit a wireless control signal corresponding to one selected from among a first mode via an infrared diode, in which a user manipulates the remote controller with one hand to manipulate a television, and a second mode, in which the user manipulates a video game unit with two hands. The transmitter turns a rotatable lever equipped with the infrared diode to set the first mode or the second mode according to a characteristic of an appliance to be controlled. The transmitter sets the remote controller in the first mode if a protrusion of the rotatable lever does not make contact with a mode selecting switch, and sets the remote controller in the second mode if the protrusion of the rotatable lever makes contact with the mode selecting switch due to the rotation of the rotatable lever, thereby simplifying components to set each mode using one hand or two hands.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims priority under 35 U.S.C 119(a) from Korean Patent Application No. 10-2007-0080169, filed on Aug. 9, 2007, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present general inventive concept relates to a multi-function remote controller and a method of controlling the same, allowing a user to readily manipulate an appliance using one hand or two hands. 
         [0004]    2. Description of the Related Art 
         [0005]    Household appliances (e.g., television, optical disc player, multifunctional peripheral (MFP) equipped with functions of the television and optical disc player, etc.) typically include a remote controller used to transmit control commands to perform various functions. 
         [0006]    A remote controller is equipped with a power on/off key and a plurality of functional keys to set or perform a variety of functions, and operates a corresponding appliance by transmitting a control command corresponding to a key manipulated by a user. In general, the remote controller has a long shape such that a user can press a desired key by holding it in one hand. 
         [0007]    If a user uses separate remote controllers for various appliances, the user must spend a great amount of money and be burdened with the maintenance and management of the remote controllers according to the appliances. 
         [0008]    In this regard, a remote controller available for a plurality of appliances has been developed. For instance, a remote controller capable of operating an optical disc player as well as a television has been developed. 
         [0009]    Meanwhile, a remote controller for a video game unit allows a user to power on and/or off the video game unit and set or execute provided functions. Such a remote controller for the video game unit allows a user to use the remote controller with both hands based on the characteristics of the video game unit. 
         [0010]    As described above, remote controllers may be classified into a one-hand mode and a two-hand mode according to the characteristics of various appliances. If a user employs remote controllers for all modes, the user may be burdened with extraneous costs and maintenance. For this reason, a multi-function remote controller that can be integrally used regardless of a mode type has been required. 
         [0011]    U.S. Patent Publication No. 2006-158342 discloses an integrated remote controller that is used for an A/V device (i.e., a television (TV), a video cassette recorder (VCR), a DVD player, etc.), and can be used as a video game controller when the integrated remote controller is horizontally positioned. In this publication, the integrated remote controller is upright in a longitudinal direction such that a user can hold the remote controller with one hand when adjusting a TV, and rotated in a transverse direction such that the user can hold the remote controller with both hands in order to play a video game. Further, in the publication, a plurality of buttons is provided in order to individually set a mode type. For example, several buttons are used corresponding to a TV mode, a CD mode, a VCR mode, a Game mode. In addition, the remote controller independently employs light emitting diodes (LEDs) to transmit a signal of the remote controller in the vertically upright position and in the horizontal position. 
         [0012]    As described above, since the conventional remote controller must have an individual component to select a corresponding mode and transmit a signal in the selected mode according a one-hand mode or a both-hand mode, the manufacturing cost may be increased, or the number of manufacturing processes may be increased. 
       SUMMARY OF THE INVENTION 
       [0013]    The present general inventive concept provides a multi-function remote controller and a method of controlling the same, capable of simplifying components of the multi-function remote controller when realizing the multi-function remote controller to support one-hand and two-hand modes. 
         [0014]    Additional aspects and/or utilities of the present general inventive concept will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the general inventive concept. 
         [0015]    The foregoing and/or other aspects and utilities of the present general inventive concept are achieved by providing a remote controller including a key section equipped with a plurality of keys used to operate an appliance to be controlled, a body provided with the keys, a transmitter to wirelessly transmit control signals corresponding to the keys, in which a position of the transmitter is changeable in the body, and a controller which sets one of operational modes according to the position of the transmitter and outputs the control signals corresponding to the keys through the transmitter according to the set operational mode. 
         [0016]    The transmitter may be installed in one of first and second positions, in which the first position corresponds to a first mode allowing a user to operate the body with one hand, and the second position corresponds to a second mode allowing the user to operate the body with two hands. 
         [0017]    The transmitter may be positioned in line with the body in the first position, and rotated with respect to the body at a predetermined angle in the second position. 
         [0018]    The transmitter may include a rotatable lever rotatably installed in the body, and an infrared diode installed in one side of the rotatable lever to transmit an infrared signal. 
         [0019]    The transmitter may further include a hinge shaft used to hinge the rotatable lever to the body. 
         [0020]    The remote controller may further include a mode selecting switch to provide a signal corresponding to the operational mode set according to the position of the transmitter to the controller, in which the controller recognizes the operational modes according to an on-state or an off-state of the mode selecting switch. 
         [0021]    The transmitter may be provided at a first side with a protrusion, in which the protrusion makes contact with the mode selecting switch according to the position of the transmitter. 
         [0022]    The controller may match two different control commands to the keys, and may output a corresponding control command according to the set operational mode. 
         [0023]    The keys of the key section may include an enter key which powers on/off the appliance, sets or executes a predetermined function corresponding to the appliance, and at least one functional key which selects functions corresponding to the appliance. 
         [0024]    When a plurality of enter keys are provided in the body, the enter keys may perform a same function in each operational mode, and may be installed at different positions in the body. 
         [0025]    The foregoing and/or other aspects and utilities of the present general inventive concept may also be achieved by providing a method of controlling a remote controller having a body provided with a plurality of keys that operate an appliance to be controlled and a transmitter that wirelessly transmits control signals corresponding to the keys, including setting one of a plurality of operational modes by changing an installation position of the transmitter in the body, determining a key manipulated by a user among the keys in the operational mode, and transmitting a control signal corresponding to the manipulated key through the transmitter. 
         [0026]    The operational mode may be set as one of first and second modes, in which the first mode represents that the transmitter is positioned in line with the body so that a user operates the body with one hand, and the second mode represents that the transmitter is rotated with respect to the body at a predetermined angle so that the user operates the body with two hands. 
         [0027]    When transmitting the control signal, a corresponding control command is output according to the set operational mode if at least two different control commands are matched to the plurality of keys. 
         [0028]    The foregoing and/or other aspects and utilities of the present general inventive concept may also be achieved by providing a remote controller including a body to operate a plurality of appliances, the remote controller including a plurality of keys to operate one of the plurality of appliances based on a set operational mode to generate a corresponding signal, a transmitter movably coupled to the body to transmit the signal to the one of the plurality of appliances based on the set operational mode, and a controller to set the operational mode based on a rotated position of the transmitter. 
         [0029]    The may further include a switch to allow the controller to alternate between a first operational mode and a second operational mode. 
         [0030]    The transmitter may further include a protrusion to not contact the switch to activate the first operational mode when the transmitter is in a first rotated position and to depress the switch to activate the second operational mode when the transmitter is in a second rotated position. 
         [0031]    The first operational mode may be a one-handed operational mode and the second operational mode may be a two-handed operational mode. 
         [0032]    The foregoing and/or other aspects and utilities of the present general inventive concept may also be achieved by providing a method of controlling a remote controller having a body with a plurality of keys to operate a plurality of appliances, and a rotatable transmitter to wirelessly transmit control signals corresponding to the plurality of keys, the method including setting one of a plurality of operational modes by rotating the transmitter to a particular position, and transmitting a control signal to a corresponding one of the appliances according to the set operational mode through the transmitter if one of the plurality of keys is depressed. 
         [0033]    The method may further include depressing a switch with a portion of the transmitter to alternate between the operational modes when the transmitter is rotated. 
         [0034]    A first operational mode of the plurality of operational modes may be a one-handed operational mode, and a second operational mode of the plurality of operational modes may be a two-handed operational mode. 
         [0035]    The foregoing and/or other aspects and utilities of the present general inventive concept may also be achieved by providing a remote controller, including a plurality of keys to generate a first signal and a second signal, and a transmitter to move between a first position and a second position to transmit the first signal and the second signal in a first direction and a second direction with respect to positions of keys. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0036]    These and/or other aspects and utilities of the present general inventive concept will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which: 
           [0037]      FIG. 1A  is a view to illustrate an example in which a user uses a multi-function remote controller with one hand according to an embodiment of the present general inventive concept; 
           [0038]      FIG. 1B  is a view to illustrate an example in which a user uses the multi-function remote controller with two hands according to an embodiment of the present general inventive concept; 
           [0039]      FIG. 2  is a perspective view illustrating a transmitter of a multi-function remote controller according to an embodiment of the present general inventive concept; 
           [0040]      FIG. 3  is a view illustrating a transmitter of a multi-function remote controller according to an embodiment of the present general inventive concept; 
           [0041]      FIG. 4  is a block diagram illustrating a controller of a multi-function remote controller according to an embodiment of the present general inventive concept; 
           [0042]      FIG. 5  is a table illustrating infrared codes matched to functional keys in a first mode corresponding to one-hand use and a second mode corresponding to two-hand use in a multi-function remote controller according to an embodiment of the present general inventive concept; and 
           [0043]      FIG. 6  is a flowchart illustrating a method of controlling a multi-function remote controller according to an embodiment of the present general inventive concept. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0044]    Reference will now be made in detail to the embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below to explain the present general inventive concept by referring to the figures. 
         [0045]    Hereinafter, a multi-function remote controller  100  and a method of controlling the same according to an embodiment of the present general inventive concept will be described. 
         [0046]      FIG. 1A  is a view to illustrate an example in which a user uses the multi-function remote controller  100  with one hand, and  FIG. 1B  is a view to illustrate an example in which a user uses the multi-function remote controller  100  with two hands. 
         [0047]    As illustrated in  FIGS. 1A and 1B , the multi-function remote controller  100  includes a body  110 , a key section  120 , and a transmitter  130 . 
         [0048]    The body  110  has a rectangle-shaped external appearance. 
         [0049]    The body  110  is provided on the front surface thereof with the key section  120  that may be manipulated by a user, and provided at the first side thereof with the transmitter  130  that is rotatable. 
         [0050]    As illustrated in  FIG. 2 , the transmitter  130  includes a rotatable lever  131  that is hinged to a hinge shaft  135  of the body  110  and an infrared diode  132  installed at a first side of the rotatable lever  131  to transmit an infrared signal in a forward direction. The rotatable lever  131  is rotatably installed in a groove  111 . 
         [0051]    Referring again to  FIGS. 1A and 1B , the key section  120  includes first and second enter keys  121  and  126  used to set a power-on or power-off command and execution commands corresponding to appliance to be controlled, and also includes a plurality of functional keys  122 ,  123 ,  124 , and  125  arranged around a circumference of the first enter key  121 . 
         [0052]    Although the first and second enter keys  121  and  126  are arranged at different positions on the front surface of the body  110 , both the first and second enter keys  121  and  126  may be manipulated by a user and equipped with the same function. 
         [0053]    The plurality of functional keys  122 ,  123 ,  124 , and  125  may have different functions with respect to the appliance according to operational mode types that include an operational mode (hereinafter, referred to as “first mode”) allowing one-hand use as illustrated in  FIG. 1A  and an operational mode (hereinafter, referred to as “second mode”) allowing two-hand use as illustrated in  FIG. 1B . 
         [0054]    The selection between the first and second modes is determined according to the position of the transmitter  130 . 
         [0055]    As illustrated in  FIG. 1A , the first mode represents a state in which the transmitter  130  is positioned in line with the body  10  while facing the appliance. In the first mode, a user can easily hold the body  110  and manipulate the plurality of keys  121  through  126  using one hand. 
         [0056]    As illustrated in  FIG. 1B , the second mode represents a state in which the transmitter  130  is positioned toward the appliance and rotated with respect to the body  110  at a predetermined angle. In the second mode, a user can easily hold the body  110  to manipulate the plurality of keys  121 - 126  using two hands. 
         [0057]    In the first mode, the transmitter  130  is positioned in line with the body  110  as described above, and a protrusion  133  formed at the first side of the rotatable lever  131  does not make contact with a mode selecting switch  134  as illustrated in  FIG. 3 . In this case, the mode selecting switch  134  is in an off-state. 
         [0058]    If a user turns the rotatable lever  131  in order to switch the first mode to the second mode, the transmitter  130  is rotated with respect to the body  110  at a predetermined angle as marked with a virtual line. At this time, the protrusion  133  of the rotatable lever  131  makes contact with the mode selection switch  143 , thereby turning on the mode selecting switch  134 . 
         [0059]    As illustrated in  FIG. 4 , the mode selection switch  134  is electrically connected to an input terminal of a controller  140  to control the operation of the remote controller  100 . 
         [0060]    The mode selecting switch  134  provides an on and/or off signal to the controller  140 , and the controller  140  can determine based on the on and/or off signal from the mode selecting switch  134  whether the position of the transmitter  130  corresponds to the first mode or the second mode. 
         [0061]    The key section  120  is connected to the input terminal of the controller  140 . 
         [0062]    First through sixth switches S 1  through S 6  corresponding to the plural keys  121  through  126  of the key section  120  are electrically connected to the controller  140 , and a corresponding switch is turned on and/or off according to the manipulation of one of the corresponding keys  121  through  126 . In this case, the first and second enter keys  121  and  126  correspond to the first and sixth switches S 1  and S 6 , respectively, and the plurality functional keys  122 ,  123 ,  124 , and  125  correspond to the second through fifth switches S 2 , S 3 , S 4 , and S 5 , respectively. 
         [0063]    The first and second enter keys  121  and  126  are used to power on and/or off the appliance or set and execute the functions of the appliance. The first enter key  121  may be used in the first mode when a user manipulates the remote controller  100  with one hand, and the second enter key  126  may be used in the second mode when a user manipulates the remote controller  100  with two hands. 
         [0064]    As described above, the functional keys  122  to  125  are provided such that functions given to a corresponding appliance to be controlled can be set. In general, the functional keys  122  to  125  are used to manipulate a graphic user interface (GUI), which is used to set functions based on guide information displayed on a display device (not illustrated) provided in the appliance. 
         [0065]    The first mode (one-handed mode) is employed when a user manipulates the remote controller  100  with respect to a household appliance (e.g., a TV, an optical disc player, etc.). In the first mode, the first functional key  122  may correspond to a set command (Up) to move a cursor upward, and the second functional key  123  may correspond to a set command (Right) to move the cursor rightward. In addition, the third functional key  124  may correspond to a set command (Down) to move the cursor downward, and the fourth functional key  125  may correspond to a set command (Left) to move the cursor leftward. 
         [0066]    Since the second mode (two-handed mode) is employed when a user manipulates the remote controller  100  to be used with a video game appliance, set information corresponding to the plurality of functions is different from that in the first mode. For example, in the second mode, the first functional key  122  may correspond to a set command (Left) to move a cursor leftward, and the second functional key  123  may correspond to a set command (Up) to move the cursor upward. In addition, the third functional key  124  may correspond to a set command (Right) to move the cursor rightward, and the fourth functional key  125  may correspond to a set command (Down) to move the cursor downward. 
         [0067]    The controller  140  can determine whether an operational mode set according to an on and/or off state of the mode selecting switch  134  is the first mode or the second mode, and recognize set information about a corresponding key according to on and/or off states of the functional keys  121  through  126  in the set operational mode. 
         [0068]    As illustrated in  FIG. 5 , the controller  140  searches to find information about infrared codes C 1  through C 5  corresponding to keys manipulated by a user in an internal memory, and outputs a control signal corresponding to the infrared codes C 1  through C 5  such that the infrared diode  132  wirelessly transmits a control command corresponding to the infrared codes C 1  through C 5 . 
         [0069]    Hereinafter, a method of controlling a multi-function remote controller according to an embodiment of the present general inventive concept will be described with reference to  FIG. 6 . 
         [0070]    The controller  140  determines the input of a key signal in operation  201 . If the key signal is input, the controller  140  determines an on and/or off state of the mode selecting switch  134  in operation  203 . 
         [0071]    If the mode selecting switch  134  is in an off state in operation  203 , that is, if the remote controller is in the first mode, in which the transmitter  130  is in line with the body  110  as illustrated in  FIG. 1A  such that a user can handle the remote controller using one hand, the controller  140  determines whether the first enter key  121  or the second enter key  126  is manipulated in operation  205 . If the first enter key  121  or the second enter key  126  is manipulated, the manipulated enter key is set as the first code C 1  in operation  207 . 
         [0072]    If the first enter key  121  or the second enter key  126  is not manipulated in operation  205 , the controller  140  determines if the first functional key  122  is manipulated in operation  209 . If the first functional key  122  is manipulated, the first functional key  122  is set as the second code C 2  in operation  211 . 
         [0073]    If the first functional key  122  is not manipulated in operation  209 , the controller  140  determines if the second functional key  123  is manipulated in operation  213 . If the second functional key  123  is manipulated, the second functional key is set as the second code C 3  in operation  215 . 
         [0074]    If the second functional key  123  is not manipulated in operation  213 , the controller  140  determines if the third functional key  124  is manipulated in operation  217 . If the third functional key  124  is manipulated, the third functional key is set as the third code C 4  in operation  219 . 
         [0075]    If the third functional key  124  is not manipulated in operation  217 , the controller  140  determines if the fourth functional key  125  is manipulated in operation  221 . If the fourth functional key  125  is manipulated, the fourth functional key is set as the fifth code C 5  in operation  223 . 
         [0076]    If the mode selecting switch  134  is in an on state in operation  203 , that is, if the remote controller is in the second mode, in which the transmitter  130  is rotated with respect to the body  110  at a predetermined angle as illustrated in  FIG. 1B  such that a user can handle the remote controller using two hands, the controller  140  determines whether the first enter key  121  or the second enter key  126  is manipulated in operation  225 . If the first enter key  121  or the second enter key  126  is manipulated, the manipulated enter key is set as the first code C 1  in operation  207 . 
         [0077]    If the first enter key  121  or the second enter key  126  is not manipulated in operation  225 , the controller  140  determines if the second functional key  123  is manipulated in operation  227 . If the second functional key  123  is manipulated, the second functional key  123  is set as the second code C 2  in operation  211 . 
         [0078]    If the second functional key  123  is not manipulated in operation  227 , the controller  140  determines if the third functional key  124  is manipulated in operation  229 . If the third functional key  124  is manipulated, the third functional key  124  is set as the second code C 3  in operation  215 . 
         [0079]    If the third functional key  124  is not manipulated in operation  229 , the controller  140  determines if the fourth functional key  125  is manipulated in operation  231 ). If the fourth functional key  125  is manipulated, the fourth functional key  125  is set the fourth code C 4  in operation  219 . 
         [0080]    If the fourth functional key  125  is not manipulated in operation  231 , the controller  140  determines if the first functional key  122  is manipulated in operation  233 . If the first functional key  122  is manipulated, the first functional key  122  is set the fifth code C 5  in operation  223 . 
         [0081]    The controller  140  outputs a control signal according to the infrared codes set in the above operations  207 ,  211 ,  215 ,  219 , and  223 , and the infrared diode  132  of the transmitter  130  wirelessly transmits an infrared signal corresponding to a control code to an appliance to be controlled in operation  235 . Accordingly, the appliance operates to perform a function corresponding according to the transmitted infrared signal. 
         [0082]    As described above, according to the present general inventive concept, a one-hand use mode or a two-hand use mode is selected by rotating a transmitter that transmits a control command to an appliance, and a single transmitter is used regardless of a mode type to transmit a signal to the appliance. Accordingly, unlike the related art, components corresponding to mode selection and signal transmission can be reduced, thereby reducing manufacturing costs and a number of manufacturing processes. 
         [0083]    Although few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.