JP2003333362A - Video audio reproducing apparatus - Google Patents

Video audio reproducing apparatus

Info

Publication number
JP2003333362A
JP2003333362A JP2002142639A JP2002142639A JP2003333362A JP 2003333362 A JP2003333362 A JP 2003333362A JP 2002142639 A JP2002142639 A JP 2002142639A JP 2002142639 A JP2002142639 A JP 2002142639A JP 2003333362 A JP2003333362 A JP 2003333362A
Authority
JP
Japan
Prior art keywords
video
device
information
signal
audio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002142639A
Other languages
Japanese (ja)
Inventor
Kenji Mizutani
Shinichi Yoshizawa
研治 水谷
伸一 芳澤
Original Assignee
Matsushita Electric Ind Co Ltd
松下電器産業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP2002142639A priority Critical patent/JP2003333362A/en
Publication of JP2003333362A publication Critical patent/JP2003333362A/en
Application status is Pending legal-status Critical

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for easily controlling display contents of two screen by a remote controller by equipping the screen with the remote controller in addition to the screen of a television receiver. <P>SOLUTION: A user can control a GUI (graphical user interface) on the sub screen equipped with the remote controller. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for reproducing video and audio such as a television, and more particularly to an apparatus for operating a remote control by a user to view the image remotely. is there. 2. Description of the Related Art In recent years, television broadcasts have been provided with various information related to programs, in addition to moving image streams. Typical examples are EPG (Electronic Program Guide) service for analog terrestrial television broadcasting, BS (Broadcasting Satellite) digital television broadcasting,
There are CS (Communication Satellite) digital broadcasting and terrestrial digital broadcasting. The viewer can browse the program guide on the screen and search for programs from program genres and program performers. It is also possible to browse data broadcasts that are simultaneously broadcast as sub-broadcasts, such as sports game progress information, participate in interactive programs such as quiz programs, and purchase goods through shopping programs. [0003] However, such a television has a problem that the number of items operated by the user is dramatically increased as compared with the conventional television, so that the usability of the television is poor. As a technique for solving such a problem, conventionally, a relatively small number of buttons (information buttons, up / down / left / right movement buttons, an enter button, function buttons of four colors of red, blue, yellow and green) are provided on a remote controller. GUI (Graphical User Interface) displayed on the screen by combining them with the user
Has improved the usability of digital TV. [0005] However, it is common to enjoy a large-screen television at a distance of several meters or more. In such a usage form, it is difficult to understand at a glance many items in the GUI displayed at a distance. In addition, when performing GUI operations using a remote controller, the user must operate the camera while looking at a distant screen and checking buttons on the remote controller at hand. Therefore, it takes a great physical and mental burden to match the movement of the line of sight and the focus of the eyes. In general, when two or more people watch television broadcasts in a general home, when enjoying the main broadcast on a large screen, the screen is displayed on the screen in order to simultaneously display the GUI of other information at the request of one person. Shrinking is often not welcomed by others. For example, when watching a live broadcast image of a game on the main broadcast for watching sports, and wanting to see the progress information of the game flowing as data on the sub broadcast, reducing the game screen is Often disturbs other people who have been concentrated. [0007] The present invention solves these problems by providing a system in which a screen is mounted on a remote controller in addition to the screen of a television and a display content of two screens is easily controlled by the remote controller. [0008] In order to solve the above problems, a video and audio reproduction apparatus according to the present invention comprises: a main unit for converting information of an information source into video and audio and providing the same to a user; A remote control device for the user to remotely operate the main unit. The main unit decodes information from an information source into a first video signal, a first audio signal, and a first data signal and outputs the decoded information. A first information synthesizing device for selectively synthesizing one audio signal and a first data signal and outputting as a first audio / video signal, and displaying or reproducing the first audio / video signal to provide to a user A video and audio output device, a second information decoding device that decodes and outputs information of an information source into a second video signal, a second audio signal, and a second data signal, and a second video signal and a second video signal. A second information synthesizing device for selectively synthesizing the second audio signal and the second signal and outputting the second audio and video signal as a second video and audio signal; and a remote operation by modulating an electromagnetic wave or an optical signal with the second video and audio signal An information transmitting device for transmitting to the device and a power transmitting device for transmitting from the remote control device. An information receiving device that demodulates a wave or an optical signal and outputs an original signal, a combining control device that controls the functions of a first information combining device and a second information combining device according to the content of the original signal, It is characterized by comprising a decoding control device for controlling the functions of the first information decoding device and the second information decoding device according to the content of the signal. The remote control device demodulates an electromagnetic wave or optical signal transmitted from the main device and outputs a video / audio signal, and a video / audio output for displaying or reproducing the video / audio signal and providing the video / audio signal to the user. A device, an operating device that receives a user's instruction to the main device and outputs it as an electric signal, an information transmitting device that modulates an electromagnetic wave or an optical signal with the electric signal and transmits the signal to a remote place, an information receiving device, and video / audio output It is characterized by comprising a first power supply device for supplying power to the device, the information transmission device, and the operation device, and a second power supply device for supplying power to the first power supply device. It is preferable that the operation device has an operation interface that allows a user to easily change the contents of the video / audio output device and the contents of the video / audio output device to the same, additional, or independent contents. [0012] The operation interface may include one button for making the contents of the video and audio output device the same as the contents of the video and audio output device. Further, the operation interface may include one button for making the contents of the video / audio output device and the video / audio output device independent. Furthermore, the operation interface is
One button for adding the content of the video / audio output device to the video / audio output device may be provided. [0013] The first power supply device is built in the remote control device, and the second power supply device can be detached when the user operates the remote control device. Further, the second information synthesizing device converts the second video signal or the second audio signal or the second data signal in order to reduce an audiovisual difference between the video and audio output device and the video and audio output device. Correction processing, compression processing, or filtering processing can be performed. FIG. 1 shows the configuration of a video / audio reproducing apparatus according to an embodiment of the present invention. The information source 102 is a television antenna, a cable of a cable television, an Internet line, a home video server, or the like.
Is reproduced as video or audio and provided to the user 103. If the main unit 101 is not within the reach of the user 103, the remote control 104 is used to
Operate 1 remotely. Main device 101 and remote control device 10
4 performs bidirectional communication using light or electromagnetic waves. FIG. 2 shows a detailed configuration of the main unit 101. As shown in FIG. The information of the information source is decoded by the information decoding device 201 into a video signal, an audio signal, and a data signal. For example, if the information source 102 is a BS digital broadcast, the information decoding device 201 is constituted by a BS digital tuner circuit, and a video signal to be output is a moving image stream of a currently selected channel, an audio signal is an audio stream, and a data signal is This is a data stream flowing in parallel with the program. These signals are selectively synthesized by the information synthesizing device 202 into a video and audio signal, and the video and audio output device 2
03 and is provided to the user. The video / audio output device 203 is, for example, a cathode ray tube, an LCD (Liquid Crystal D).
It consists of display devices such as isplay) and PDP (Plasma Display Panel) and their driver circuits, speakers and audio amplifiers. The main unit 101 has another information decoding device 204, the function of which is
Is the same as The information synthesizing device 205 selectively synthesizes a video signal, an audio signal, and a data signal output from the information decoding device 201 and outputs the resultant as a video and audio signal. The information transmitting device 206 modulates light or an electromagnetic wave using the video / audio signal and transmits the modulated light or electromagnetic wave to the remote control device 104. The information transmitting device 206 is realized by, for example, an infrared light emitting element and its control circuit, a wireless digital data transmitting circuit conforming to IEEE802.11, and the like. The information synthesis device 205 performs a correction process, a compression process, or a filtering process on the video signal, the audio signal, and the data signal so as not to exceed the transmission capability of the information transmission device 206. For example, if the video signal is MPEG4
ADPCM (Adaptive Differential)
It also performs media conversion processing such as compression by Pulse Code Modulation) and omitting a part of character strings included in the data signal. The information receiving device 207 is a remote control device 10
4, the user's instruction to the main body device 102 is converted into light or electromagnetic wave and transmitted, and is received and output as an electric signal. The information receiving device 207 includes:
For example, it is realized by an infrared light receiving element and its demodulation circuit, a wireless digital data receiving circuit conforming to IEEE802.11, and the like.
The synthesis control device 208 controls the processes of the information synthesis device 202 and the information synthesis device 205 based on the electric signal. Further, the decoding control device 209 performs the information decoding device 201 and the information decoding device 204 based on the digital signal.
Is controlled. Next, the detailed configuration of the remote control device 104 is shown in FIG. The light or electromagnetic wave transmitted from the main unit 101 is demodulated into a video / audio signal by the information receiving device 301 and reproduced by the video / audio output device 302. The information receiving apparatus 301 is realized by, for example, an infrared light receiving element and its demodulation circuit, a wireless digital data receiving circuit conforming to IEEE 802.11, and the like. The video / audio output device 302 is, for example,
It consists of a display device such as an LCD and its driver circuit, a small speaker and a small output audio amplifier. The operation device 303 is configured by input devices such as switches and buttons, and converts, for example, a user's channel change request, volume increase / decrease request, display content change request, and the like into an electric signal.
The user's request converted to the electric signal is transmitted to the information transmitting device 30.
The light or the electromagnetic wave is modulated by 4 and transmitted to the main device 101. The power supply device 305 supplies power to the information receiving device 301, the video / audio output device 302, the operation device 303, and the information transmitting device 304. The power supply device 305 includes, for example, a lithium ion rechargeable battery or a nickel hydride rechargeable battery.
The power supply 306 supplies power to the power supply 305. The power supply device 306 is configured by, for example, a charging circuit for the power supply device 305. The power supply device 306 has a structure that can be easily removed when the user holds the remote control device 104 in his hand. Next, FIG. 4 shows an example in which the present invention is implemented as a television for receiving BS digital broadcasting. The main device 101 is realized as a television receiver 401, and the main screen 402 is a video / audio output device 203.
Part of. The remote control device 104 is realized as a remote controller 403. The sub-screen 414 displays the video / audio output device 3
02. A power switch 404 for turning on the power of the television receiver 401, an input switch 405 for switching the information source 101 to another input source such as a video, and an information switch for browsing parallel data broadcasting. 406, an independent switch 407 described later,
Synchronous switch 408 to be described later, up / down / left / right determination stick 409 for operating a GUI displayed on main screen 402 or sub-screen 414, direct channel selection button 410 for determining a reception channel of main screen 402, main screen 402 Channel up / down switch 411 for sequentially changing the reception channel of the TV receiver, and a volume up / down switch 412 for adjusting the volume of the television receiver 401.
Are a part of the operation device 303, respectively. Power supply 3
06 is mounted inside the charging stand 413,
03 can be easily attached and detached. FIGS. 5, 6, and 7 show an example of the operation at the time of operating the GUI according to the present invention. It is assumed that the user is watching a baseball broadcast (ch1) on the main screen 402 as shown in FIG. Also,
It is assumed that a data broadcast is flowing in parallel with this broadcast. At this time, the information decoding device 201 is receiving ch1 and the information synthesizing device 202 is synthesizing the video signal and the audio signal and outputting the synthesized signal to the video / audio output device 203. In this state, the remote control body 403 is
Is pressed and the information button 404 is pressed, the operation device 30
3 outputs an instruction to display a data broadcast on the sub-screen 414 to the information transmitting device 304. The command received by the information receiving device 207 of the main device 101 is transmitted to the decoding control device 209, and the receiving channel of the information decoding device 204 is set to c.
Set to h1. At the same time, the synthesizing control unit 208 selects only the data from the video signal, the audio signal, and the data signal output from the information decoding unit 204 to the information synthesizing unit 205 so that the display layout is converted into a medium and output. Control. The screen of the output data is shown in FIG.
Is displayed on the sub-screen 414 as shown in FIG. The user can immediately operate the GUI displayed on the sub-screen 414 at hand using the up / down / left / right determination stick 409. Therefore, there is no need to perform operations while looking at the distant main screen 402, and the GUI operation load is reduced. Also, the main screen 40
2. Don't bother other viewers who are focused on 2. In the state shown in FIG. 6, when the user wants to share the information displayed on the sub-screen 414 with another viewer, the user presses the synchronization button 404. The operation device 303 is the information transmission device 3
In step 04, an instruction to display a data broadcast on the main screen 402 is output. According to the command received by the information receiving device 207, the combining control device 208 controls the information combining device 202 to combine and output the video signal, the audio signal, and the data signal output from the information decoding device 201. Since the output composite screen is displayed on the main screen 402 as shown in FIG. 7, the GUI can be shared by a plurality of viewers. In the state of FIG. 7, the GUI information is again
If it is desired to display only the number 14, the independent button 404 is pressed. The operation device 303 transmits the main screen 40 to the information transmission device 304.
2 is output. The combining control unit 208 is operated by the instruction received by the information receiving unit 207.
Is transmitted from the information decoding device 20 to the information synthesizing device 202.
1 is controlled so as to synthesize and output only video and audio among the video signal, audio signal, and data signal output. The output composite screen is displayed on the main screen 402 as shown in FIG. In the state shown in FIG. 6 or FIG.
Is not operated for a certain period of time, or the charging stand 40
When the setting is returned to 4, the information transmitting device 304 transmits a command to stop the remote control function to the main device 102, the transmission from the information transmitting device 206 stops, and the display of the sub-screen 414 disappears. An example of the operation at the time of zapping the back program of the present invention will be described with reference to FIGS. 5, 8 and 9. The state of FIG. 5 is as described above. In this state, when the remote control main body 403 is picked up from the charging stand 413 and the independent button 407 is pressed, the operation device 303 outputs an instruction to the information transmission device 304 to shift to the sub-screen 414 to the two-screen mode. The instruction received by the information receiving device 207 causes the decoding control device 209 to
4 is a broadcast other than the information decoding device 201, ie, c
It is set to receive a channel other than h1 (assuming that ch2 where the weather forecast is flowing is set). At the same time, according to the command received by the information receiving device 207, the synthesizing control device 208 causes the information synthesizing device 205 to synthesize and output an image and sound from the video, audio, and data output by the information decoding device 204. To control. The output video / audio screen is a sub-screen 41 as shown in FIG.
4 is displayed. In the state shown in FIG. 8, the user can freely change the channel and volume of the sub-screen 414 by using the up / down / left / right determination stick 409. For example, when the operating device 303 outputs a channel change command for the sub-screen 414 to the information transmitting device 304, the command received by the information receiving device 207 causes the decoding control device 209 to change the channel of the information decoding device 204 to the current main screen 402. Change and set to a channel other than the flowing ch1. The video, audio, and data output from the information decoding device 204 are synthesized by the information synthesizing device 205, and finally the sub-screen 4
14 is displayed. FIG. 10 shows the function definition of the up / down / left / right determination stick. Therefore, it does not disturb other viewers who are concentrated on the program on the main screen 402. In the state shown in FIG. 8, the user displays the channel displayed on the sub-screen 414 with another viewer.
When the user wants to view the data at 02, the user presses the synchronization button 408. The operation device 303 includes a main screen 402 and a sub-screen 4
14 synchronization commands are output. In response to the command received by the information receiving device 207, the decoding control device 209 sets the receiving channel ch2 of the information decoding device 204 in the information decoding device 201, and as shown in FIG.
2 displays the weather forecast. In the state shown in FIG. 9, the channel of the sub-screen 414 can be freely changed in the same manner by using the up / down / left / right determination stick 409. In addition, the synchronization button 40
By pressing 8, the channel of the main screen 402 and the channel of the sub-screen 414 become the same. In the state shown in FIG. 8 or FIG. 9, if the remote controller 403 is not operated for a certain period of time or is returned to the charging stand 404, the information transmitting device 304 transmits a command to stop the remote control function to the main unit 102, and the information transmitting device 20
6 stops, and the display of the sub-screen 414 disappears. The information transmitting device 20 of the main unit 101
6 and the information receiving device 207 are configured by devices conforming to standardization specifications such as IEEE802.11, and the communication protocol is TCP / IP (Transmission Control Protocol / Internet).
Protocol), HTTP (Hyper Text Transfer Protocol), and other standard protocols to enable wireless LAN (Loca
l A small personal computer with an Area Network) and Bluetooth, a PDA (Personal Digital Assistant),
It is also possible to temporarily use a small information device such as a mobile phone as a remote control for a television. The information decoding device 201, the information synthesizing device 202, the information decoding device 204, the information synthesizing device 2
05, the synthesis control device 208, and the decode control device 209 are described as software programs, and by mounting them on hardware, one device can have equivalent functions. Also, the present invention is not limited to BS digital broadcasting,
It can be widely applied to video and audio playback devices that require complicated operations, such as CS digital broadcasting and Internet broadcast receiving terminals. Further, the remote controller 403 shown in FIG. 4 is an example of the present invention, and it is possible to change the arrangement of buttons, change the buttons to touch panel switches on the sub-screen 414, and change the shape of the remote controller 403. is there. As is apparent from the above description, since the GUI can be operated on the sub-screen mounted on the remote controller, there is no need to operate the GUI while looking at the distant main screen. Thus, the operation burden of the TV is reduced. When two or more people watch television broadcasts in a general home, the user can operate the GUI on the sub-screen of the remote controller or search for the program on the back, so that the user who is concentrated on the main screen can feel good. Does not impair.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of a video / audio reproducing apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram showing a detailed configuration of a main unit 101. FIG. FIG. 4 is a block diagram showing a detailed configuration of the device 104. FIG. 4 is a diagram showing an example in which the present invention is implemented as a television for receiving BS digital broadcasting. FIG. 5 is a diagram showing an example of an operation at the time of GUI operation of the present invention. FIG. 6 is a diagram illustrating an example of an operation at the time of GUI operation according to the present invention; FIG. 7 is a diagram illustrating an example of an operation at the time of GUI operation according to the present invention; FIG. FIG. 9 is a diagram illustrating an example of the operation of the present invention when zapping a counterprogram. FIG. 10 is a diagram illustrating an example of the function definition of the up / down / left / right determination stick 409 during the zapping of the counterprogram of the present invention. 101 main unit 102 information source 103 user 104 remote control Device 201 Information decoding device 202 Information synthesis device 203 Video / audio output device 204 Information decoding device 205 Information synthesis device 206 Information transmission device 207 Information reception device 208 Synthesis control device 209 Decode control device 301 Information reception device 302 Video / audio output device 303 Operating device 304 Information transmission device 305 Power supply device 306 Power supply device 401 Television receiver 402 Main screen 403 Remote control 404 Power button 405 Input switch button 406 Information button 407 Independent button 408 Synchronization button 409 Up / Down / Left / Right decision stick 410 Direct channel selection button 411 Channel up / down button 412 Volume up / down button 413 Charging stand 414 Sub-screen

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H04N 7/025 H04Q 9/00 301E 7/03 H04N 7/08 A 7/035 H04Q 9/00 301 F term (Ref.) HA01 HA02 HA36

Claims (1)

  1. Claims: 1. A main unit for converting information of an information source into video and audio and providing the same to a user, and a remote control unit for the user to remotely operate the main unit. A video / audio playback device configured. A first information decoding device for decoding information from an information source into a first video signal, a first audio signal, and a first data signal, and outputting the first information signal; A first information synthesizing device for selectively synthesizing a signal, the first audio signal, and the first data signal and outputting as a first video / audio signal, and displaying or reproducing the first video / audio signal A video and audio output device that provides the user with the information, a second information decoding device that decodes and outputs the information of the information source to a second video signal, a second audio signal, and a second data signal; A second information synthesizing device for selectively synthesizing a second video signal, the second audio signal, and the second signal and outputting as a second video / audio signal, An information transmission device that modulates an electromagnetic wave or optical signal and sends it to a remote control device An information receiving device that demodulates an electromagnetic wave or an optical signal transmitted from the remote control device and outputs an original signal; and the first information synthesizing device and the second information synthesizing device according to the content of the original signal. And a decoding control device that controls the functions of the first information decoding device and the second information decoding device according to the content of the original signal. Item 3. The video / audio reproduction device according to Item 1. A remote control device for demodulating an electromagnetic wave or an optical signal transmitted from the main unit and outputting a video / audio signal; and displaying or reproducing the video / audio signal to provide the user with the video / audio signal. A video / audio output device, an operation device that receives a user's instruction to the main device and outputs it as an electric signal, an information transmission device that modulates an electromagnetic wave or an optical signal with the electric signal and transmits the information remotely, and the information A first power supply for supplying power to the receiving device, the video / audio output device, the information transmitting device, and the operating device; and a second power supply for supplying power to the first power supply. The video / audio reproduction device according to claim 1 or 2, wherein: 4. The operation device according to claim 1, further comprising an operation interface that allows a user to easily change the contents of the video / audio output device and the contents of the video / audio output device to the same, additional, or independent contents. 4. The video / audio reproduction device according to 3. 5. The video / audio reproduction apparatus according to claim 4, wherein the operation interface includes one button for making the contents of the video / audio output apparatus and the video / audio output apparatus identical. 6. The video / audio reproduction device according to claim 4, wherein the operation interface includes one button for making the contents of the video / audio output device and the video / audio output device independent. 7. The video / audio reproduction apparatus according to claim 4, wherein the operation interface includes one button for adding the contents of the video / audio output apparatus to the video / audio output apparatus. 8. The remote control device according to claim 1, wherein the first power supply device is built in the remote control device, and the second power supply device is detachable when a user operates the remote control device. 4. The video / audio reproduction device according to 3. 9. A second information synthesizing device for converting a second video signal, a second audio signal, or a second data signal to reduce an audiovisual difference between the video and audio output device and the video and audio output device. The video / audio reproduction device according to claim 3, wherein the video / audio reproduction device performs a correction process, a compression process, or a filtering process.
JP2002142639A 2002-05-17 2002-05-17 Video audio reproducing apparatus Pending JP2003333362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006332771A (en) * 2005-05-23 2006-12-07 Sony Corp Control apparatus and method, and program
WO2008016031A1 (en) * 2006-07-31 2008-02-07 Access Co., Ltd. Electronic device, display system, display method, and program
JP2008288638A (en) * 2007-05-15 2008-11-27 Sharp Corp Remote controller and television device
JP2009118423A (en) * 2007-11-09 2009-05-28 Canon Inc Display device, and control method
JP2009182404A (en) * 2008-01-29 2009-08-13 Nec Corp Program confirmation type remote control system and remote controller
JP2010016734A (en) * 2008-07-07 2010-01-21 Sony Corp Remote apparatus, remote control method, program, and display control device
US8976303B2 (en) 2012-08-22 2015-03-10 Sony Corporation Presenting snapshot of controlled device display on display of remote commander to facilitate control of the controlled device by user who cannot see controlled device
US10226257B2 (en) 2006-03-13 2019-03-12 Pneumrx, Inc. Lung volume reduction devices, methods, and systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006332771A (en) * 2005-05-23 2006-12-07 Sony Corp Control apparatus and method, and program
US10226257B2 (en) 2006-03-13 2019-03-12 Pneumrx, Inc. Lung volume reduction devices, methods, and systems
WO2008016031A1 (en) * 2006-07-31 2008-02-07 Access Co., Ltd. Electronic device, display system, display method, and program
JP5186373B2 (en) * 2006-07-31 2013-04-17 株式会社Access Electronic device, display system, display method and program
US8434114B2 (en) 2006-07-31 2013-04-30 Access Co., Ltd. Electronic device, display system, display method, and program
JP2008288638A (en) * 2007-05-15 2008-11-27 Sharp Corp Remote controller and television device
JP2009118423A (en) * 2007-11-09 2009-05-28 Canon Inc Display device, and control method
JP2009182404A (en) * 2008-01-29 2009-08-13 Nec Corp Program confirmation type remote control system and remote controller
JP2010016734A (en) * 2008-07-07 2010-01-21 Sony Corp Remote apparatus, remote control method, program, and display control device
US8976303B2 (en) 2012-08-22 2015-03-10 Sony Corporation Presenting snapshot of controlled device display on display of remote commander to facilitate control of the controlled device by user who cannot see controlled device

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