JP2010183438A - Content output device, communication terminal, remote control system, and remote control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the operability of a communication terminal which serves as a remote control as well. <P>SOLUTION: Based on the type of output content to a monitor 300, an STB 100 connecting the monitor 300 detects one or more functions to which remote control should be carried out, and transmits functional information showing one or more detected functions to a portable telephone 200. Based on received functional information, the portable telephone 200 respectively assigns different functions of the STB 100 or the monitor 300 to each key of a key portion 208. When any key is operated, a remote control code for controlling the function assigned to the key is transmitted to the STB 100. At this time, a key layout image of the key portion 208 is displayed on a display 207, and in the key layout image, only a key image corresponding to a key to which the function is assigned is displayed in accordance with a predetermined display mode. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a content output device, a communication terminal, a remote control system, and a remote control program, and more particularly to a content output device, a communication terminal, a remote control system, and a remote control program for using the communication terminal as a remote controller of the content output device. .

  A remote controller (abbreviation of remote controller) is used to remotely control home appliances (remote control). In particular, in video / audio output devices such as TV (abbreviation for television), there are many modes such as audio / video output modes, switching of reception channels, switching of broadcast signal supply sources (network, terrestrial broadcast signals, etc.) Since it has a function, the remote controller is required to improve operability with respect to function switching.

  Patent Document 1 describes a bidirectional remote controller that communicates bidirectionally with a TV that is a video / audio reproduction device. In this document, a GUI (Graphical User Interface) for television operation is displayed on a sub-screen mounted on a remote controller.

  Patent Document 2 shows a remote controller that communicates with a digital broadcast receiving device in both directions. When receiving a broadcast signal in which a general broadcast program and remote control dedicated content are multiplexed, the digital broadcast receiving apparatus separates and extracts the remote control dedicated content from the received broadcast signal, and the extracted remote control dedicated content is bidirectional Send to remote control. Remote control-specific content is displayed on the display unit of the bidirectional remote controller. In Patent Document 3, content information is displayed on a display unit of a bidirectional remote controller. When the user instructs to select desired content from the displayed content information, the selected content is displayed on the display unit.

  In Patent Document 4, a remote controller that performs bidirectional communication with a television is shown. The remote control has a plurality of color buttons and a display unit. In the remote controller, the background color of the operation information displayed on the display unit based on the information received from the television is associated with the color of the button to be operated.

  All of the remote controls described in the above documents are dedicated remote controls, and therefore must be prepared for each device to be controlled, which increases the number of remote controls. In order to solve this problem, in recent years, a technique for using a mobile phone as a remote controller has been provided.

JP 2000-333362 A JP 2005-198061 A JP 2004-266799 A JP 2007-129331 A

  When the mobile phone is also used as a remote control, it is difficult for the user to understand the correspondence between the keys of the mobile phone and the keys of the remote control, and sometimes the wrong key is operated when used as a remote control. .

  Therefore, an object of the present invention is to provide a content output device, a communication terminal, a remote control system, and a remote control program capable of improving operability when the communication terminal is also used as a remote control for controlling the function of the content output device. Is to provide.

  According to one aspect of the present invention, a content output device having a plurality of functions that are remotely controlled according to a control code received from a communication terminal that is also used as a remote controller, detects a type of content to be output, and A function detection unit that detects one or more functions to be remotely controlled among a plurality of functions, and a function information transmission unit that transmits function information indicating the detected one or more functions to the communication terminal, based on the type; Prepare.

  Preferably, a content acquisition unit that acquires content based on an externally received signal is further provided.

Preferably, the received signal includes a television broadcast signal.
Preferably, the content output device is connected to a monitor unit that inputs content output from the content output device and displays an image according to the input content.

  Preferably, the monitor unit is a television and the content output device is a television set-top box.

  According to another aspect of the present invention, a communication terminal that is also used as a remote controller for remotely controlling a plurality of functions of a content output device includes a key unit on which a plurality of keys operated from the outside are arranged, a display unit, and a display unit A display control unit for displaying a key arrangement image indicating an arrangement of a plurality of keys in the key unit, and function information indicating one or more functions to be remotely controlled determined according to the type of output content from the plurality of functions A function information receiving unit that receives the content output device from the content output device, and a function assigning unit that assigns each different function of the content output device to each of one or more keys of the plurality of keys of the key unit based on the received function information; A transmission unit that transmits a control code for controlling a function assigned to the key to the content device when the key is operated.

  Preferably, in the key arrangement image, the display control unit displays a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to the plurality of keys in accordance with a predetermined display mode.

  Preferably, in the key arrangement image, the display control unit displays only a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to a plurality of keys.

  Preferably, in the key arrangement image, the display control unit enlarges and displays a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to the plurality of keys.

  Preferably, a light source unit that irradiates a plurality of keys with light is further provided, and the light source unit irradiates a key to which a function is assigned among the plurality of keys.

  Preferably, a display color of a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to a plurality of keys in the key arrangement image matches a color of light emitted to the key in the key portion.

  Preferably, the display control unit displays information indicating the assigned function in association with a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to the plurality of keys on the display unit.

  Preferably, a display-integrated input device is further provided, and the display unit and the key unit are integrally configured and provided for the display-integrated input device. In this case, since the key is formed by the display, the key displayed on the display unit can be operated by touching it with a finger or a touch pen, and operability can be improved.

Preferably, the communication terminal is a mobile phone.
A remote control system according to still another aspect of the present invention includes the above-described content output device having a plurality of functions that are remotely controlled according to a control code received from a remote controller, and the above-described communication terminal that is also used as a remote controller.

  A remote control program according to still another aspect of the present invention provides a remote controller for remotely controlling a plurality of functions of a content output device with a communication terminal including a key unit on which a plurality of keys operated from the outside are arranged and a display unit The computer of the communication terminal is determined according to the type of output content from the display control unit that displays the key arrangement image indicating the arrangement of a plurality of keys in the key unit, and the plurality of functions. A function information receiving unit that receives one or more functions to be remotely controlled from the content output device, and each of one or more keys of the plurality of keys of the key unit based on the received function information A function assigning unit for assigning different functions of the content output device, and a function assigned to the key when the key is operated. The display control unit functions as a transmission unit that transmits a control code to the content device, and the display control unit, in the key arrangement image, corresponds to a key image corresponding to a key to which a function is assigned among a plurality of key images corresponding to a plurality of keys. Are displayed according to a predetermined display mode.

  According to the present invention, the content output device detects one or more functions to be remotely controlled based on the type of output content, and transmits functional information indicating the detected one or more functions to the communication terminal. The communication terminal assigns each different function of the content output device to each key of the key unit based on the received function information, and controls the function assigned to the key when the key is operated. The control code is transmitted to the content output device.

  Thus, by assigning a function according to the type of output content when used as a remote control to an existing key of the communication terminal, when a key operation is performed, a function control code corresponding to the content type output at that time is assigned. Can be transmitted to the content output device to control the function.

  Therefore, according to the present invention, it is possible to improve operability when the communication terminal is also used as a remote controller for controlling the function of the content output apparatus.

1 is a schematic configuration diagram of a remote control system according to an embodiment of the present invention. It is a figure which shows the function structure of STB which concerns on embodiment of this invention. It is a figure which shows the function structure of the mobile telephone which concerns on embodiment of this invention. It is a figure which shows an example of the memory content of STB which concerns on embodiment of this invention. It is a figure which shows an example of the memory content of the mobile telephone which concerns on embodiment of this invention. It is a figure which shows an example of a display screen when the mobile telephone which concerns on embodiment of this invention is in remote control mode. It is a figure which shows the other example of a display screen when the mobile telephone which concerns on embodiment of this invention is in remote control mode. It is a figure which shows the other example of a display screen when the mobile telephone which concerns on embodiment of this invention is in remote control mode. It is a figure which shows the other example of a display screen when the mobile telephone which concerns on embodiment of this invention is in remote control mode. It is a figure which shows the example of a screen display of the monitor which concerns on embodiment of this invention. It is a figure which shows the other example of a screen display of the monitor which concerns on embodiment of this invention. It is a figure which shows the other example of a screen display of the monitor which concerns on embodiment of this invention. It is a figure which shows the other example of a screen display of the monitor which concerns on embodiment of this invention. It is a figure explaining the framework information which concerns on embodiment of this invention. It is a processing flowchart concerning an embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  Referring to FIG. 1, the remote control system according to the present embodiment is an STB (abbreviation of set top box) 100 that is an example of a content output device and a communication that is also used as a remote control for remotely controlling STB 100. A mobile phone 200 which is an example of a terminal is provided. The STB 100 and the mobile phone 200 communicate bidirectionally. The STB 100 connects a monitor 300 such as a TV receiver, and controls the supply of video or audio and data to the monitor 300 and the output of these information. The STB 100 is connected to an external IP (Internet Protocol) network 500 via a network I / F (abbreviation of interface) 400 and communicates with the IP network 500. Further, the STB 100 performs short-range wireless communication with the mobile phone 200 using radio waves according to the Bluetooth method. Here, radio waves based on Bluetooth are used, but infrared rays based on IrDA (Infrared Data Association) may be used. The Bluetooth method has advantages in that it consumes less power and can be manufactured at a lower cost than the IrDA method.

  The STB 100 has a function for enabling a user to receive various services via the monitor 300. Through the STB 100, the content by the Internet broadcast is supplied from the IP network 500 to the monitor 300. Internet broadcasts include those that transmit program data in real time (live broadcast type) as well as live television broadcasts, and those that transmit content data stored in advance in a predetermined server (on-demand type). These content data are distributed in a streaming format. In addition, the monitor 300 includes a speaker 301 for outputting a sound according to the sound data included in the received content. The STB 100 may be built in the monitor 300.

  Referring to FIG. 1, mobile phone 200 is, for example, a folding type composed of two housings, one housing has a display 207 made of liquid crystal or the like, and the other housing has keys, switches, and the like. A key unit 208 is provided. The key unit 208 is also used as an operation key for exerting (controlling) the function as the mobile phone 200 and an operation key for remotely controlling the function of the STB 100 or the monitor 300. Similarly, the display 207 is also used for information display for controlling functions as the mobile phone 200 and information display for remotely controlling functions of the STB 100 or the monitor 300.

  In addition to the communication with the STB 100, the mobile phone 200 has a data communication function such as an original call function and electronic mail via the antenna 204. Here, a well-known function is applied to a data communication function such as an original call function / e-mail or the like via the antenna 204, and the description thereof will be omitted.

  The functional configurations of the STB 100 and the mobile phone 200 will be described with reference to FIGS. Referring to FIG. 2, STB 100 receives a broadcast signal, and selectively extracts a signal corresponding to a designated channel from the input digital broadcast signal. Separation section 104 that performs separation processing of multiplexed MPEG-TS (Moving Picture Experts Group-Transport Stream) signals output from section 103, MPEG decoding section 105 that performs MPEG decoding processing, moving image or still image or character, etc. And a video output connector unit 107 for inputting a video signal output from the screen synthesis processing unit 106 and outputting the video signal to the monitor 300.

  Further, the STB 100 is a central processing unit (CPU) 101 for centrally controlling and monitoring each unit in the STB 100, a ROM (Read Only Memory) in which data referred to by the CPU 101 and data of a program to be executed are stored. Data that is input from the storage unit 102 and the CPU 101 composed of a RAM (Random Access Memory) and the CPU 101, generates an image signal based on the input data, and outputs the image signal to the screen composition processing unit 106. Data provided from the CPU 101 Based on the control signal generation unit 114 for generating a signal for controlling the operation of the monitor 300 and outputting the signal to the monitor 300 via the video output connector unit 107 and communication according to the Bluetooth system A communication unit is provided for The communication unit is given from the receiving unit 109 that demodulates and receives the signal from the mobile phone 200, the signal received by the receiving unit 109, and the signal analysis unit 110 that outputs the analysis result to the CPU 101. A signal generation unit 112 that generates a signal to be transmitted to the mobile phone 200 based on the data, and a transmission unit 111 that modulates the signal output from the signal generation unit 112 to the mobile phone 200 and transmits the signal.

  The tuner unit 103 receives the Internet broadcast signal 404 from the IP network 500 via the network I / F 400 and also receives the terrestrial digital broadcast signal 403 received by the external antenna 401. The tuner unit 103 inputs one of the Internet broadcast signal 404 and the terrestrial digital broadcast signal 403 in accordance with a control signal given from the CPU 101, and receives IP packet data corresponding to a designated channel given from the CPU 101 from the inputted broadcast signal. A frequency band signal is extracted (tuned) and output to the separation unit 104.

  The screen composition processing unit 106 normally inputs a screen image signal based on a broadcast signal input from the MPEG decoding unit 105 and outputs it to the video output connector unit 107. When an image signal is input from the image generation unit 113, the image signal and the image signal input from the MPEG decoding unit 105 are combined to generate an image signal of a combined screen, and the image signal is input via the video output connector unit 107. To the monitor 300. At this time, the composite image is displayed on the monitor 300.

  When CPU 101 receives a remote control code for controlling the function of STB 100 transmitted from mobile phone 200 via receiving unit 109 and signal analyzing unit 110, CPU 101 controls each unit according to the received remote control code. For example, a channel signal is output to the tuner unit 103 in accordance with a channel switching command instructed by the remote control code. The tuner unit 103 performs a tuning operation according to the channel signal input from the CPU 101. Further, for example, in accordance with a volume control command instructed by the remote control code, a signal for controlling the output volume is output to the monitor 300 via the control signal generation unit 114.

  The CPU 101 of the STB 100 includes an in-frame information acquisition unit 181 that acquires in-frame information that is predetermined menu information from a signal input from the separation unit 104, and a program guide acquisition unit that acquires program guide data from a signal input from the separation unit 104 182, displayed on the monitor 300 and the permitted function determination unit 183 that determines (detects) a function that is a function of the STB 100 or the monitor 300 and that is permitted to operate according to the type of the screen displayed on the monitor 300. A screen determination unit 184 that determines (detects) the type of the current screen. The screen determination unit 184 includes a frame determination unit 124 and a content type determination unit 125 to determine the screen type. The function of each unit in the CPU 101 is realized by the CPU 101 reading and executing a predetermined program stored in advance in the storage unit 102.

  Referring to FIG. 3, mobile phone 200 includes a CPU 201 for centrally controlling and monitoring mobile phone 200 itself, and a storage unit 202 including a ROM and a RAM in which data and programs referred to by CPU 201 are stored in advance. , A communication processing unit 203 for performing communication processing of calls and e-mails via an antenna 204 connected to the outside, a voice input / output unit 210 for inputting / outputting voices for calls, and the like, and detachable from the outside An I / F 211 for transferring data between a small SD card (SD (Secure Digital) memory card) 600 and the CPU 201 is provided.

  The mobile phone 200 further includes a key unit 208, an input analysis unit 209 that inputs and analyzes a key input signal corresponding to the operated key from the key unit 208, and outputs the analysis result to the CPU 201, a display 207, image data The display control unit 206 controls the display of the display 207 according to the above, and the image generation unit 205 generates image (image) data to be displayed on the display 207 based on the data given from the CPU 201 and outputs the image data to the display control unit 206.

  In addition, the mobile phone 200 uses a backlight unit 216 including an LED (Light Emitting Diode) as a light source unit for illuminating each key of the key unit 208 with light from the back surface, and each key of the backlight unit 216. A light control unit 217 for controlling lighting of the corresponding LED is provided. Based on the data given from the CPU 201, the light control unit 217 controls to turn on or off only the LED corresponding to the key to be turned on or off among the plurality of LEDs of the backlight unit 216.

  The mobile phone 200 receives the signal transmitted from the STB 100 by demodulating and receiving the signal transmitted from the STB 100, and the received signal output from the receiving unit 212. A signal analysis unit 213 that outputs the result to the CPU 201, a signal generation unit 215 that generates a signal to be transmitted based on data provided from the CPU 201, and a signal that is output from the signal generation unit 215 is modulated and transmitted to the STB 100. A transmission unit 214 is included.

  The CPU 201 includes a function assigning unit 220 for assigning a function permitted to be operated to each key, an image editing unit 221 for editing an image of a key arrangement to be displayed on the display 207, a light color determining unit 225, and a light lighting unit 226. Including. Based on the given data, the image editing unit 221 generates an image in which images (key images) corresponding to the keys are arranged according to the key arrangement of the key unit 208 by editing. The image editing unit 221 changes the arrangement of the key image so that it is different from the key arrangement of the key unit 208, the size changing unit 223 that changes the size of the key image, and the key image to blink. Flashing display portion 224. The function of each unit in the CPU 201 is realized by the CPU 201 reading and executing a predetermined program stored in the storage unit 202 in advance.

  The light color determination unit 225 controls the light emission color of the backlight of each key of the key unit 208, and the light lighting unit 226 controls the lighting of the backlight of each key of the key unit 208.

  In the present embodiment, CPU 101 and CPU 201 incorporate the functional units described in FIG. 2 and storage units 102 and 202 are shown in FIGS. 4 and 5 in order to cause mobile phone 200 to function as a remote control for STB 100. Store such data and information.

  Referring to FIG. 4, storage unit 102 of STB 100 has a plurality of frame data 120 uniquely identified by the assigned identifier, a plurality of in-frame information 130 uniquely identified by the assigned identifier, and a monitor. 300 display screen type data 141 and table 140 storing data 142 indicating the functions of the STB 100 or the monitor 300 permitted to be operated by the remote control function of the mobile phone 200 corresponding to each of the data 141, and the current display Frame identifier data 150, currently displayed content type data 160, and program guide data 170 are stored.

  The frame data 120 and the table 140 are data stored in advance in the storage unit 102 in the manufacturing stage of the STB 100. The in-frame information 130 and the program guide data 170 are based on information acquired from the received Internet broadcast signal 404 or terrestrial digital broadcast signal 403. The current display frame identifier data 150 indicates an identifier of the frame data 120 currently displayed on the monitor 300 among the plurality of frame data 120 in the storage unit 102. The currently displayed content type data 160 indicates the type of content displayed on the monitor 300, such as the above-described live broadcast type content or on-demand type content.

  The in-frame information 130 indicates menu information displayed on the monitor 300 in order to select content output to the monitor 300. The in-frame information 130 is displayed in a predetermined frame assembled on the monitor 300 screen. The framework information 120 indicates information that determines a framework for displaying the in-frame information 130 without interfering with the image of the content currently being displayed.

  The program guide data 170 is transmitted from a broadcasting station. CPU 101 extracts digital data of a program guide included in a predetermined frequency band of Internet broadcast signal 404, generates program guide data 170 based on the extracted data, and stores it in storage unit 102. The CPU 101 periodically acquires the program guide data and updates the program guide data 170 in the storage unit 102.

  Referring to FIG. 5, in storage unit 202 of mobile phone 200, original image data 229, the operation mode of mobile phone 200 is the mobile phone mode in which the original mobile phone function can be operated, and the remote control function is operable. Mode data 230 for instructing which of the remote control modes, remote control program 231 for the remote control function, key layout image data 232 representing the key layout of the key unit 208, remote control code group 233, permission function identification information 234 , A switching program 235 for switching a program that operates between the remote control mode and the mobile phone mode, and a save that indicates data of the remote control program 231 that is temporarily saved when a call is received in the remote control mode. Information on each key of the data 236 and the key part 208, and allocation to the key Key / Function allocation table 237 the information of the function stored in STB100 or monitor 300, which is, as well as mobile phone program 238 and a cellular data 239 for the mobile phone function is stored.

  The original image data 229 is key image data that shows the arrangement (arrangement) of keys in the key unit 208 of the mobile phone 200 and schematically shows the shape and size of each key.

  In the present embodiment, for the sake of simplicity, it is assumed that mobile phone 200 operates in either the remote control mode or the mobile phone mode. When shifting to the mobile phone mode, the switching program 235 activates the mobile phone program 238, the remote control program 231 for the remote control mode is placed in a standby state, and when shifting to the remote control mode, the switching program 235 is the remote control program. 231 is activated and the mobile phone program 238 is placed in a standby state.

  The cellular phone program 238 causes the cellular phone 200 to function as a cellular phone using the cellular phone data 239. Here, the priority of activation of the mobile phone program 238 is set higher than that of the remote control program 231. Therefore, if there is an incoming call in the remote control mode, the remote control mode is interrupted and switched to the mobile phone mode, and a call can be made. At this time, data used by the remote control program 231 in the remote control mode is stored in the storage unit 202 as saved data 236 by the switching program 235. Therefore, when returning to the remote control mode after the call is finished, the remote control program 231 executes processing using the saved data 236, so that the remote control mode processing is resumed from the point of interruption.

  The remote control program 231 and the remote control code group 233 are stored in the storage unit 202 at the manufacturing stage of the mobile phone 200, or are installed in the storage unit 202 by the SD card 600 after manufacture, or communicate via the antenna 204. It is downloaded from a predetermined server on the external network via the processing unit 203. Specifically, the user accesses a predetermined server and makes a request using data of the manufacturer and model of the STB 100 or the monitor 300, whereby the remote control program 231 and the remote control code group corresponding to the manufacturer and model from the predetermined server. 233 can be downloaded to the storage unit 202. Remote control code group 233 includes a remote control code corresponding to an instruction code for operating and controlling the function corresponding to each of the functions of STB 100 or monitor 300.

  6 to 9 show images according to the key arrangement image data 232 displayed on the display 207 when the mobile phone 200 is in the remote control mode, the lighting state of the backlight of each key in the key unit 208, and the like. . FIGS. 10 to 13 show examples of display screens of the monitor 300 associated with the key layout images of FIGS.

  When the operation mode of the mobile phone 200 is the remote control mode, when a predetermined key of the key unit 208 is operated to switch the content to be displayed on the monitor 300, a remote control code according to the key operation signal is transmitted from the mobile phone 200 to the STB 100. Is done. In STB 100, the received remote control code is analyzed, and a screen of content corresponding to the analysis result is displayed on monitor 300 (see FIG. 10).

  In the present embodiment, in order to simplify the description, it is assumed that there are two types of menu screens for switching display content, a portal screen and a genre search screen, but the present invention is not limited to this.

  FIG. 10 is an example of the portal screen display, and an image of the received content is displayed at the center of the screen of the monitor 300. Then, an image generated according to the frame data 120 and the in-frame information (menu information) 130 read from the storage unit 102 is displayed in the surrounding broken line portion 302. The frame data 120 displayed in FIG. 10 is illustrated in FIG.

  The operation of the CPU 101 when displaying the screen of FIG. 10 will be described. When the CPU 101 receives the portal screen request remote control code from the mobile phone 200, the in-frame information acquisition unit 181 uses the digital data extracted from the predetermined frequency band of the received Internet broadcast signal 404 for the portal screen. It is stored in the storage unit 102 as in-frame information (menu information) 130. The CPU 101 reads out the stored in-frame information 130 and the frame data 120 corresponding to the portal screen from the storage unit 102 and gives them to the image generation unit 113. The image generation unit 113 generates an image corresponding to the portion 302 in FIG. 10 based on the given frame data 120 and in-frame information 130, and outputs the image signal to the screen composition processing unit 106. The screen composition processing unit 106 synthesizes the content image signal provided from the MPEG decoding unit 105 and the image signal provided from the image generation unit 113, and outputs the processed data to the monitor 300 via the video connector 107. . Thereby, the monitor 302 displays the screen of FIG.

  FIG. 11 shows a state where a genre search screen, which is another example of the menu screen, is displayed. When the remote control code of the genre search screen is received, the in-frame information (menu information) 130 for configuring the genre search screen is also acquired by extracting the IP packet data of the Internet broadcast signal 404 by a predetermined procedure. The CPU 101 reads the corresponding frame data 120 and the in-frame information 130 from the storage unit 102 and gives them to the image generation unit 113. The image generation unit 113 generates an image signal corresponding to the portion 303 in FIG. 11 based on the given frame data 120 and in-frame information 130, and outputs it to the screen composition processing unit 106. The screen composition processing unit 106 synthesizes (superimposes) the image signal of the content by the Internet broadcast signal 404 corresponding to the currently designated channel and the image signal for the genre search screen given from the image generation unit 113, The processed signal is output to the monitor 300 via the video output connector unit 107. As a result, the screen of FIG. 11 is displayed on the monitor 300.

  Here, it was acquired by extracting the data of the portal screen or genre search screen from the received broadcast signal in response to the transmission of the remote control code for switching to the portal screen or genre search screen. Is not limited to this. For example, the CPU 101 periodically extracts digital data corresponding to the portal screen and the genre search screen from the received broadcast signal and stores the digital data in the storage unit 102. When a remote control code for switching to the portal screen or the genre search screen is received, the corresponding frame data 120 and in-frame information 130 may be read out from the storage unit 102.

  Here, when the menu screen using the frame data 120 shown in FIG. 10 or FIG. 11 is displayed, the identification code of the frame data 120 used for display, that is, the identification code for home or genre is stored. Stored as data 150 of the current display frame identifier of the section 102. When content data corresponding to the designated channel is extracted and displayed on the monitor 300 from the Internet broadcast signal 404 in the tuner unit 103, the type of the displayed content, that is, one of the live broadcast type and the on-demand type Is stored in the storage 102 as data 160 of the currently displayed content type. The currently displayed content type data 160 is included in the Internet broadcast signal 404 of the receiving channel, and can be acquired by extracting and analyzing the data.

  FIG. 12 shows an example of a display screen of the live broadcast type content monitor 300 corresponding to the designated channel of the Internet broadcast signal 404. In live broadcast type content, since data 304 including calendar (broadcast date and time) information and weather forecast is generally superimposed from the broadcast station side, data 304 is displayed together with program content.

  FIG. 13 shows a display screen example of the on-demand type content monitor 300 extracted from the Internet broadcast signal 404. When on-demand type content is displayed, data read (reproduced) from a predetermined storage area on the server side is received, and a content image according to the data is displayed on the monitor 300. Therefore, on-demand type content is displayed. In addition, the data of the indicator 305 is also transmitted from the server side. As shown in FIG. 13, the indicator 305 is displayed together with the content image to be reproduced. The indicator 305 visually indicates to what point in time the display content is currently reproduced (or how much data is to be reproduced).

  In the present embodiment, the function that is permitted to be operated is determined according to the type of screen displayed on monitor 300, and the keys of display 207 in the remote control mode of mobile phone 200 are determined according to the determined type of permitted function. The array image is changed. In the present embodiment, the screen displayed on the monitor 300 is an image of content according to the received broadcast signal and an image according to related information of the content to be displayed (selecting the content display mode or switching the content to be displayed) For example) and a combination image of these two images.

  The screen determination unit 184 of the STB 100 reads the current display frame identifier data 150 and the current display content type data 160 of the storage unit 102, and determines the type of the screen displayed on the monitor 300 based on both the read data. In this embodiment, the menu image of the portal screen (see FIG. 10) is displayed as the screen type in the state where the live broadcast content is displayed based on the data 150 of the current display frame identifier and the data 160 of the current display content type. When it is detected that it is displayed, it is determined that the type is “A1”. Further, when it is detected that the menu image of the genre search screen (see FIG. 11) is displayed in the state where the on-demand type content is displayed, the type “A2” is determined. Here, the type of the displayed screen is determined by the combination of the type of display content based on the received Internet broadcast signal 404 and the information of the display frame (type of menu information). This is an example. However, the present invention is not limited to this.

  The screen determination unit 184 outputs the determined display screen type to the permitted function determination unit 183. The permitted function determination unit 183 searches the table 140 of the storage unit 102 based on the input type of the display screen, and reads data 142 corresponding to the data 141 that matches the type. The read data 142 indicates a function of which operation is permitted from the outside among the functions of the monitor 300 or the STB 100 in a state where the screen of the determined type is displayed. The permission function determination unit 183 transmits the permission function information indicated by the read data 142 to the mobile phone 200 side.

  In mobile phone 200, function assignment unit 220 of CPU 201 provides information on permitted functions received from STB 100 to image editing unit 221 and outputs an image editing instruction. In response to the image editing instruction, the image editing unit 221 reads the original image data 229 from the storage unit 202, edits the read original image data 29 based on the permitted function information given from the function allocating unit 220, and Array image data 232 is generated.

  The function allocation unit 220 is realized by the remote control program 231. The remote control program 231 of the function assignment unit 220 determines to which key of the key unit 208 the information on the permitted function received from the STB 100 is assigned. The determination procedure differs depending on the manufacturer and model, and is described as an instruction code in the remote control program 231. Information on the function assigned to each key is stored in the key / function assignment table 237 by the function assignment unit 220. As a result, the key / function assignment table 237 stores the key indicated by the generated image of the key array image data 232 and information on the function assigned to the key corresponding to each key. The key arrangement image data 232 is given to the image generation unit 205, and the image generation unit 205 generates image data for display based on the key arrangement image data 232, and outputs it to the display control unit 206. The display control unit 206 displays an image according to the input display image data on the display 207.

  An example of a display image according to the key array image data 232 will be described. FIG. 6 shows an example of the display screen of the display 207 according to the key arrangement image data 232 generated in the case of the display screen type “A1” of the monitor 300. Here, for explanation, a key image corresponding to each key in the key arrangement image of the key unit 208 displayed on the display 207 is referred to as a 'button'.

  In FIG. 6, the position of each button in the button arrangement in the display image of the display 207 matches the position of the corresponding key in the key arrangement of the key unit 208. Then, on the button, information (function name or the like) indicating the function assigned to the corresponding key is displayed in association with the button based on the permitted function information in the data 142 of the table 140. For example, it is displayed over the button or in the vicinity (nearest) of the button. Therefore, the user can operate by checking the function information displayed on each button of the display 207 and operating the key of the key unit 208 to which the permitted function is assigned and the key. Functions can be identified.

  In the display 207, the display buttons 81, 82, and 83 are displayed regardless of which type of screen is determined. The key corresponding to the button 81 is assigned a function for returning to the previous operation, the key corresponding to the button 82 is assigned a function for switching the display mode of the monitor 300, and the key corresponding to the button 83 is assigned a menu ( Portal screen, genre search screen) selection and determination functions are assigned.

  Further, the function corresponding to the button 71 is assigned a function for displaying the program guide according to the program guide data 170 on the monitor 300, and the key corresponding to the display button 72 is assigned a function for turning off the monitor 300 or the STB 100. The key corresponding to the button 73 is assigned a function for adjusting the output volume of the monitor 300, the key corresponding to the button 74 is assigned a channel switching function, and the key corresponding to the button 75 is assigned to the screen of the monitor 300. A function for switching to the full size (maximum size) is assigned, a key corresponding to the button 76 is assigned a switching function to terrestrial digital broadcasting, and a key corresponding to the button 77 is assigned parental control (Parental Control). The specified function is assigned.

  In FIG. 6, it is permitted to operate the function of the monitor 300 or STB 100 only by operating the keys of the key unit 208 corresponding to the buttons 71 to 77 and the keys of the key unit 208 corresponding to the buttons 81 to 83. Has been. Therefore, for example, even if the numeric key “3” of the key unit 208 to which no permission function is assigned (function information is not displayed on the corresponding button of the display 207) is operated, no remote control code is transmitted.

  In the present embodiment, lighting of each LED of the backlight unit 216 is controlled in order to present a key to which a function permitted to be operated is assigned and a key to which the function is not allowed to be identified in the key unit 208.

  Specifically, the light lighting unit 226 searches the key / function assignment table 237 and detects a key to which a function is assigned based on the search result. Then, a control signal for turning on only the LED corresponding to the detected key is generated, and the control signal is sent to the light control unit 217. Thereby, the light control unit 217 controls lighting of each LED of the backlight unit 216 based on the given control signal. As a result, the backlight of only the key to which the function permitted to be operated in the key unit 208 is turned on, and only the key is illuminated by the backlight.

  Therefore, the user can visually determine the key to which the function permitted to be operated is assigned and the key to which the operation is not allowed by checking the lighting state of the key of the key unit 208.

  FIG. 7 shows an example of the display screen of the display 207 according to the key arrangement image data 232 generated in the case of the display screen type “A2” of the monitor 300.

  In FIG. 7, as in FIG. 6, the position of each button in the button array in the display image on the display 207 matches the position of the corresponding key in the key array of the key unit 208, and the button is assigned to the corresponding key. Information (function name, etc.) indicating the function being displayed is displayed in the vicinity (most recent) of the button.

  In FIG. 7, a button 78 is displayed in addition to the buttons described in FIG. The key of the key unit 208 corresponding to the button 78 is assigned a function for displaying on the monitor 300 a menu for selecting content supplied from the server regarding on-demand content.

  In FIG. 7, the numerical keys “7”, “8”, “9” and “0” and “*” and “#” of the key unit 208 corresponding to the button group 210 surrounded by the alternate long and short dash line on the display 207 are displayed. The symbol key indicates that an authorized function is not assigned. Therefore, in order to prevent an erroneous operation by the user, only buttons corresponding to keys to which only permitted functions are assigned may be displayed. Specifically, as shown in FIG. 8, the image editing unit 221 may not display the buttons of the button group 210 of FIG.

  FIG. 9 shows a display example on the display 207 when the type is determined to be a screen when only on-demand content is displayed. Since the displayed on-demand content is supplied to the monitor 300 via the STB 100 by reading out content data stored in an external server, that is, by reproducing the content data, a general DVD (Digital Versatile Disc) is provided. A group of buttons 79 corresponding to keys to which permitted functions such as rewind, playback / pause, fast forward, chapter unit forward or rewind, and playback stop as provided in a playback device are displayed. Yes. FIG. 9 shows that the channel switching function of the TV station is not permitted because it is an on-demand type content display.

  Here, as shown in FIG. 8, the button display corresponding to the key to which no function is assigned is erased by the image editing unit 221, but it depends on whether or not the function is assigned to the corresponding key. The change of the display mode of the buttons on the display 207 is not limited to the deletion of the buttons.

  For example, the size changing unit 223 may enlarge only the button corresponding to the key to which the function is assigned on the display 207 and display the button corresponding to the key to which the function is not assigned. . Further, the blinking display unit 224 may cause only the buttons corresponding to the keys to which the functions are assigned to blink on the display 207. Further, the arrangement changing unit 222 may change the arrangement of buttons on the display 207. For example, only buttons corresponding to keys to which functions are assigned are displayed in an arrangement manner that increases the interval (space) between adjacent buttons, and buttons corresponding to keys to which no functions are assigned are adjacent buttons. You may make it display by the arrangement | sequence of the aspect with almost no space | interval of mutual. By changing the display mode in this way, the keys to which functions are assigned can be quickly recognized on the display 207.

  Further, the light color determination unit 225 may determine the emission color of the LED corresponding to each key. That is, when each button of the display 207 is colored, the backlight color of each key in the key unit 208 is matched with the display color of the corresponding button. As a result, the key of the key unit 208 illuminated with the emission color that matches the display color of the button corresponding to the desired function of the display 207 can be easily identified, so that excellent operability can be obtained.

  Next, according to the flowchart of FIG. 15, regarding the switching operation of the key arrangement image on the display 207 of the mobile phone 200, for example, in the state where the live broadcast type content is displayed on the monitor 300 as shown in FIG. A description will be given assuming that

  In a state where the live broadcast content is displayed on the monitor 300 as shown in FIG. 12, the user operates the predetermined key of the key unit 208 of the mobile phone 200 to switch from the mobile phone mode to the remote control mode (step S3). ). The CPU 201 having received the switching operation signal updates the mode data 231 in the storage unit 202 to “remote control mode” based on the signal. Based on the updated mode data 231, the switching program 235 sets the mobile phone program 238 to a wait state, and sets the remote control program 231 from the wait state to an executable state or an execution state. At this time, intermediate data or the like processed by the mobile phone program is stored as saved data 236. Therefore, after that, when the mobile phone program 238 is changed from the waiting state to the execution state (or the executable state) by the switching program 235, the mobile phone program 238 uses the save data 236 to start the processing immediately before the switching. The processing of the mobile phone can be continued.

  When execution of the remote control program 231 starts, the remote control code of the function request signal is transmitted to the STB 100 (step S5).

  STB 100 waits until a function request signal is received from mobile phone 200 (NO in step S41), but when received (YES in step S41), signal analysis unit 110 analyzes the received remote control code and obtains an analysis result. Is given to the permitted function determination unit 183 of the CPU 101 (step S43). The permitted function determination unit 183 searches the table 140 based on the type of display screen on the monitor 300 determined by the screen determination unit 184. Based on the search result, information on the permitted function indicated by the data 142 corresponding to the type of the display screen is read. Thereby, a permission function is determined (step S45). And the information of the determined permission function is transmitted to the mobile phone 200 (step S47). After transmission, it waits until it receives from the mobile telephone 200 (it is NO at step S49).

  The cellular phone 200 receives the permission function information transmitted from the STB 100 (step S7). The function assignment unit 220 assigns a corresponding key of the key unit 208 to each function indicated by the received permitted function information. Information on permitted functions and information on assigned keys are provided to the image editing unit 221.

  The image editing unit 221 edits the original image data 229 read from the storage unit 202 based on the function information and the assigned key information, generates key array image data 232, and stores the generated key array image data 232. Stored in the unit 202. At this time, information on permitted functions and information on allocation keys are stored in the key / function allocation table 237 of the storage unit 2020.

  Subsequently, the CPU 201 reads out the key arrangement image data 232 from the storage unit 202 and gives it to the image generation unit 205. The image generation unit 205 generates image data for display based on the given key arrangement image data 232. Based on the generated image data, the display control unit 206 displays the key arrangement image data on the display 207 (step S11). As a result, the image shown in FIG. 6 or 7 is displayed on the display 207.

  Thereafter, the CPU 201 determines whether or not a key operation is performed by the user based on a key input signal from the key unit 208 (step S13). The key input signal is analyzed by the input analysis unit 209, and an analysis result indicating which key is operated is given to the CPU 201.

  When the CPU 201 detects that the predetermined mode switching key has been operated based on the analysis result (YES in step S15), the CPU 201 deletes the display image on the display 207 (step S27), and sets the mode data 230 to the “mobile phone mode”. Update. In response to the mode data 230 being updated, the switching program 235 sets the remote control program 231 to the waiting state, and switches the mobile phone program 238 from the waiting state to the execution state (step S29). Thereby, the operation mode of the mobile phone 200 shifts from the remote control mode to the mobile phone mode.

  On the other hand, when it is detected that the operation key is not a predetermined mode switching key (NO in step S15), a remote control code based on a key input signal corresponding to the key operated in step S13 is generated (encoded) by the remote control program 231. (Step S17), the generated remote control code is transmitted to the STB 100 (Step S19). After that, the mobile phone 200 waits until receiving some signal from the STB 100 (NO in step S21).

  In STB 100, when a remote control code is received from mobile phone 200 (YES in step S49), the received remote control code is analyzed by signal analysis unit 110 (step S51). The CPU 101 inputs an analysis result and performs processing based on the analysis result.

  Here, since it is assumed that a key operation for displaying the portal screen is performed on the display screen of the live broadcast type content, the analysis is performed based on the analysis result of step S51 as a portal screen display command.

  In step S53, the content image on the monitor 300 and the image according to the home menu information are synthesized according to the procedure using the image generation unit 113 and the screen synthesis processing unit 106 described above, and this synthesized screen is displayed (FIG. 5). 10). Accordingly, the screen determination unit 184 determines that the screen displayed on the monitor 300 is the type “A1”.

  The function assigning unit 220 searches the table 140 based on the determined type, and based on the search result, information on the permitted function corresponding to the type of the data 142 is read from the table 140 and transmitted to the mobile phone 200. (Steps S53 and S55).

  Mobile phone 200 receives information from STB 100 (YES in step S21). The received information is analyzed, and if it is determined that the received information is not permission function information based on the analysis result (NO in step S23), the process proceeds to another process according to the received information (step S25). After the other processes are completed, the process proceeds to step S27.

  If it is determined that the received information is information on the permitted function based on the analysis result (NO in step S23), the process proceeds to step S9. Thereby, the screen of FIG. 6 or FIG. 7 corresponding to the display screen of FIG. 10 is edited and displayed on the display 207 (steps S9 and S11).

  According to the above-described processing, when the operation mode of the mobile phone 200 is in the remote control mode, the permitted function is determined based on the type of display screen on the monitor 300, and the determined permitted function should be assigned. The key arrangement image data 232 based on the detected key and the permitted function information is generated and displayed on the display 207, and only the detected permitted function is assigned to the key of the mobile phone 200.

  On the other hand, in general, in the case of a dedicated remote controller for operating STB 100, it is necessary to individually assign keys to all functions that should be permitted to be operated in STB 100 and monitor 300. According to the present embodiment, a function equivalent to that of the dedicated remote controller can be achieved with a limited number of keys of the mobile phone 200 without providing the dedicated remote controller. In addition, a key image (button) corresponding to the key is displayed on the display 207 of the mobile phone 200 according to the key arrangement of the key unit 208, and information on the function assigned to the corresponding key is displayed in the vicinity of the button. Even when the keys of the telephone 200 are also used as remote control keys, it is possible to quickly recognize what functions can be operated by operating the keys.

  Here, the method of causing the mobile phone 200 according to the present embodiment to function as a remote controller that performs two-way communication with the STB 100 and performing display according to FIGS. 6 to 9 can be provided as a program. Such a program can be recorded on a computer-readable recording medium such as a ROM, a RAM, and a memory card of the SD card 600 attached to the mobile phone 200 and provided as a program product. A program can also be provided by downloading via a network. For example, in the configuration of FIG. 3, the CPU 201 reads and executes a program stored in the SD card 600 via the I / F 211. Alternatively, the program read from the SD card 600 or the program downloaded via the network is stored in a predetermined area of the storage unit 202, and then the program is read from the predetermined area and executed.

  In addition, the function of performing bidirectional communication with the mobile phone 200 using the STB 100 as a remote controller can be provided as a program. Such a program can be recorded on a computer-readable recording medium such as a ROM or RAM corresponding to the storage unit 102 attached to the STB 100 and a memory card, and provided as a program product. The program can also be provided by downloading via various networks such as the IP network 500. For example, in the configuration of FIG. 2, the CPU 101 receives and executes a program transmitted from a predetermined server on the IP network 500 via the tuner unit 103. Alternatively, after the program read from the memory card or the program downloaded via the network is stored in a predetermined area of the storage unit 102, the program is read from the predetermined area and executed.

  The provided program product includes the program itself and a recording medium on which the program is recorded.

(Another example)
In the above-described embodiment, the key arrangement image data 232 is generated by the mobile phone 200, but may be generated by the STB 100 and transmitted to the mobile phone 200. In other words, it is generally known that the key layout of the mobile phone 200 is almost the same regardless of the manufacturer / model, so the STB 100 includes the original image data 229 and generates the key layout image data 232 by editing. Then, the generated key layout image data is transmitted to the mobile phone 200.

  In the present embodiment, mobile phone 200 is used as an example of a communication terminal that is also used as a remote control. However, the present invention is not limited to mobile phone 200. Any device capable of bidirectionally communicating with the STB 100 and having a display function capable of displaying a key screen, such as a PHS (Personal Handy Phone), a portable game machine, a PDA (Personal Digital Assistant), a general-purpose remote controller, It may be a wristwatch.

  If it is troublesome to confirm the display 207 of the mobile phone 200 and move the line of sight to the key unit 208 and perform key operations, the screen can be displayed from a display / input integrated touch panel in which the functions of the display 207 and the key unit 208 are integrated. May be configured. In that case, when the display button of the display / input integrated touch panel display is directly pressed (touched), the remote control code of the function associated with the pressed button is transmitted, and the operability is further improved. Increase. Even in this case, it is preferable that only the buttons corresponding to the functions permitted to be operated according to the type of the display screen of the monitor 300 are displayed on the display 207 in a limited manner.

  Further, in this embodiment, the mobile phone 200 is a foldable mobile phone, but it may be a flat type mobile phone that is not a foldable or a slide type mobile phone.

  In this embodiment, the priority of the mobile phone program 238 is set higher than that of the remote control program 231, but this priority may be set variably.

  Further, the function of the STB 100 may be built in the monitor 300. In this case, the monitor 300 corresponds to a TV or a personal computer. When the STB 100 function is built in the personal computer, the STB 100 function corresponds to an Internet browser function installed in the personal computer.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  100 STB, 200 mobile phone, 300 monitor, 500 IP network, 216 backlight unit, 217 light control unit, 207 display, 208 key unit, 183 permitted function determination unit, 184 screen determination unit, 220 function allocation unit, 221 image editing Part, 140 table, 231 program for remote control, 232 key arrangement image data, 233 remote control code group, 234 permitted function identification information, 237 key / function assignment table, 238 program for mobile phone.

Claims (16)

A content output device having a plurality of functions controlled remotely according to a control code received from a communication terminal also used as a remote controller,
A type detection unit for detecting the type of output content;
Based on the type detected by the type detection unit, a function detection unit that detects one or more functions to be remotely controlled among the plurality of functions;
A content output device comprising: a function information transmitting unit configured to transmit function information indicating the one or more functions detected by the function detecting unit to the communication terminal.   The content output device according to claim 1, further comprising a content acquisition unit that acquires the content based on an externally received signal.   The content output device according to claim 2, wherein the received signal includes a television broadcast signal.   The content output according to any one of claims 1 to 3, wherein the content output device is connected to a monitor unit that inputs the content output from the content output device and displays an image according to the input content. apparatus. The monitor unit is a television;
The content output device according to claim 4, wherein the content output device is a set top box of the television. A communication terminal that is also used as a remote controller for remotely controlling a plurality of functions of a content output device,
A key part in which a plurality of keys operated from the outside are arranged;
A display unit;
A display control unit for displaying a key arrangement image indicating an arrangement of the plurality of keys in the key unit on the display unit;
A function information receiving unit that receives, from the content output device, function information indicating one or more functions to be remotely controlled determined according to the type of output content from the plurality of functions;
A function allocating unit that allocates different functions of the content output device to each of one or more keys of the plurality of keys of the key unit based on the received function information;
A communication terminal, comprising: a transmission unit that transmits a control code for controlling the function assigned to the key to the content output device when the key is operated. The display control unit
The communication terminal according to claim 6, wherein in the key arrangement image, a key image corresponding to a key to which the function is assigned among a plurality of key images corresponding to the plurality of keys is displayed according to a predetermined display mode. The display control unit
8. The communication terminal according to claim 7, wherein in the key arrangement image, only a key image corresponding to a key to which the function is assigned among a plurality of key images corresponding to the plurality of keys is displayed. The display control unit
The communication terminal according to claim 7, wherein in the key arrangement image, a key image corresponding to a key to which the function is assigned among a plurality of key images corresponding to the plurality of keys is enlarged and displayed. A light source unit for irradiating the plurality of keys with light;
The communication terminal according to claim 6, wherein the light source unit irradiates a key to which the function is assigned among the plurality of keys.   The display color of the key image corresponding to the key to which the function is assigned among the plurality of key images corresponding to the plurality of keys in the key arrangement image matches the color of light emitted to the key in the key portion. The communication terminal according to claim 10. The display control unit
The information indicating the assigned function is displayed on the display unit in association with the key image corresponding to the key to which the function is assigned among the plurality of key images corresponding to the plurality of keys. The communication terminal according to any one of 11. A display-integrated input device;
The communication terminal according to any one of claims 6 to 12, wherein the display unit and the key unit are integrally configured and used for the display-integrated input device.   The communication terminal according to claim 6, wherein the communication terminal is a mobile phone. A content output device having a plurality of functions remotely controlled according to a control code received from a remote controller;
A communication terminal also used as the remote controller,
The content output device includes:
A type detection unit for detecting the type of output content;
Based on the type detected by the type detection unit, a function detection unit that detects one or more functions to be remotely controlled among the plurality of functions;
A function information transmitting unit that transmits function information indicating the one or more functions detected by the function detecting unit to the communication terminal;
The communication terminal is
A key part in which a plurality of keys operated from the outside are arranged;
A display unit;
A display control unit for displaying a key arrangement image indicating an arrangement of the plurality of keys in the key unit on the display unit;
A function information receiving unit for receiving the function information from the content output device;
A function allocating unit that allocates different functions of the content output device to each of one or more keys of the plurality of keys of the key unit based on the received function information;
A remote control system, comprising: a transmission unit that transmits the control code for controlling the function assigned to the key to the content device when the key is operated. In order to use a communication terminal including a key unit in which a plurality of keys operated from outside and a display unit are used as a remote controller for remotely controlling a plurality of functions of the content output device, the computer of the communication terminal is used.
A display control unit for displaying a key arrangement image indicating an arrangement of the plurality of keys in the key unit on the display unit;
A function information receiving unit that receives, from the content output device, function information indicating one or more functions to be remotely controlled determined according to the type of output content from the plurality of functions;
A function allocating unit that allocates different functions of the content output device to each of one or more keys of the plurality of keys of the key unit based on the received function information;
A remote control program for causing a control code for controlling the function assigned to a key to function as a transmission unit that transmits the key to the content device when the key is operated.

Images