JPH11243512A - Master-slave joint type display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a master-slave joint type display system, where an image can be viewed on a large screen at a position apart from the user, while characters or the like can be viewed in the vicinity of the user. SOLUTION: This system is provided with a large-sized and stationary master set 20, having a screen display section 20a whose size is comparatively large that is placed and used at a position apart comparatively from a place of the user and displays program contents consisting mainly of an image which is based on information extracted externally and with small-sized slave sets 21-23 having screen display sections 21a-23a, whose size is comparatively small that is used closely to or in the vicinity of the user and displays characters or an image, and with cooperation means, such as radio transmission reception sections 41-43 and 51-53 that allow the display of contents jointly or interlocked with the display contents of the master set 20 in real time or substantially in real time to be displayed on the screen display sections of the slave sets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for viewing more detailed related information, character information, images of other camera angles, etc. at or near a user while watching an image on a large television set in a living room. A suitable parent-child cooperative display system.

[0002]

2. Description of the Related Art Recently, with the progress of digital technology and information communication technology, the number of opportunities to view "screens in which images and characters are mixed (screens including images and characters)" has increased. For example,
When watching a foreign movie on TV, the subtitles (translated characters) are displayed at the bottom or right end of the screen. In addition, it receives data broadcasts (for example, “bitcast broadcasts”) that multiplex data related to the program contents and transmit them to a personal computer using the gaps in the radio waves of television broadcasts. For example, a “screen in which images and characters are mixed” is displayed, or a “window” -shaped child screen is displayed in the parent screen. "Bitcast Broadcasting" is a service developed by InfoCity in Shibuya-ku, Tokyo, Japan.
Of the scan lines, 21 are not used, but 4 of them are
It sends information at 40 kilobits per second using a book. The feature is that a TV program and its related information flow simultaneously in parallel, and you can call up detailed information related to the program in real time while watching TV on a personal computer. TBS, a Japanese television broadcasting company, started this bitcast broadcasting in the Kanto area from July 1997,
It is scheduled to be broadcast in full scale from October (above is 199
Quotes from the evening edition of the Nihon Keizai Shimbun, “Receiving related data while watching TV using a personal computer screen” and the article “TBS and Virtual Communications Broadcasting and Net Fusion Games” by the Nikkei Sangyo Shimbun on September 7, 2007 did). In addition, TVs equipped with a "picture-in-picture (PIP)" function for projecting a small screen on a large screen are available from Mitsubishi Electric Corporation in Japan and the like. In such a case, for example, a powerful image is displayed on a large screen,
Detailed information related to the video may be displayed in characters on a small screen, and this is also a small screen (child screen) in a "screen where images and characters are mixed" and a "large screen (parent screen)" Is displayed. " A patent infringement lawsuit has been filed between Ampex (California) and Mitsubishi Electric in the United States for a television equipped with this PIP function (Nikkei Sangyo Shimbun, September 3, 1997; Electric wins US company with PIP-equipped TV "). Also, "Internet TV", which allows browsing the Internet homepage on TV, has recently been marketed. The main feature of this Internet homepage is that it can be instantaneously switched to the linked homepage. Most of the information on the homepage is a "screen in which images and characters are mixed".

[0003]

As described above, recently, a small screen (child screen) is included in a "screen in which images and characters are mixed" and a "large screen (parent screen)" placed in a living room (living room). Screens (pictures-in-pictures) "and Internet homepages are increasing. However, while it is desirable to view the image on the large screen of the television at a position relatively distant from the user (a position distant from 2 to 3 m), it is desirable to view the characters at hand or on a table or desk. However, conventionally, a product satisfying both of these two requirements has not been developed.

[0004] Conventionally, a stationary TV of a "living room culture" (family enjoyment in a family) in which a user looks at a distance of about 2 to 3 m in a living room, and a user views from a distance of 30 cm on a desk in an office or study. It cannot be easily integrated with the personal computer of "Study Culture" (a personal tool)
I was told. In the same context, it is also said that television is used to passively relax and watch in the living room, while personal computers are used in the study, private rooms, and workplaces in active tension. Furthermore, in the same context, it is also described that television can be used to lean back (relax) on the sofa in the living room, and a computer can be used with a curled back at the desk.

[0005] Further, depending on the contents of a homepage on the Internet, a type A suitable for viewing on a large display system remote from the user, and a type A suitable for viewing on a relatively small display system near or at hand of the user. There is a type B. When the home pages are linked one after another, the type A and the type B appear randomly one after another. Therefore, when watching only with the stationary television, the information of type B is difficult to see. On the other hand, when the information is viewed only with the personal computer, the information of type A cannot be sufficiently enjoyed (for example, in the case of a personal computer, type A information is not available).
Information cannot be seen by many people, such as family members.
Not enough). As described above, there is a problem that the usability of the user is poor in various points even when using only the stationary television or the personal computer.

[0006] When watching a live broadcast of a game of a group sport such as soccer, a live broadcast of a play from a theater, or a live broadcast of a concert of a music performance group on a large television in a living room, a user may use the live broadcast of a group sport. I want to track and see the face of only one player, one actor in a play, and one member of a music performance group (if I love the "one" as a fan) Sometimes. However, since a large TV set in the living room is shared and enjoyed by the whole family, it is not possible to put the face of the one person on the large TV set, giving priority to the preference of oneself alone (family members). To be annoying to other members).

Also, when a family member watches a similar broadcast program on a stationary television in the living room, even if one of the family members wants to see a profile of a certain player or actor, the stationary television screen is displayed. For example, displaying a profile as, for example, a "child screen" may be annoying to other family members. This is because when using a parent-child dual screen television (television receiver), displaying a “window” -shaped “child screen” in the “parent screen” is concentrated on the “parent screen”. This is because it hinders the viewer (the "child screen" becomes an obstacle for concentrating and viewing the "parent screen"). Therefore, even if one of the family members wants to see the profile of a player or an actor, it will cause trouble for other family members.

The present invention has been made in view of such problems of the prior art.
It is an object of the present invention to provide a parent-child cooperative display system capable of allowing related information such as characters to be viewed near or at hand of a user while enabling viewing on a large screen at a distance of about m. And In addition, the present invention relates to information related to the content of a screen displayed on a large-sized display system that is set at a distance of 2 to 3 meters from a user (more detailed information, other related information, and a part of the screen). Video that is enlarged and displayed, video that enlarges and displays a specific person on the screen, video captured by another camera angle, and related information on the time axis (for example, a still image or repeat Playback image, etc.)
It is an object of the present invention to provide a parent-child cooperative display system capable of allowing a user to see it at hand or in the vicinity.

[0009]

Means for Solving the Problems Background of the invention. A large stationary display device such as a wall-mounted TV set in a living room is suitable for common viewing by the entire family (viewing in a family harmony).
It is suitable for watching TV programs from a position 3 m away. On the other hand, personal computers (PCs)
Small portable display devices such as DAs (personal digital assistants) are suitable for individual use by individuals ("personal media" used by individuals), and the user can use it at or near This is suitable for viewing character / image information such as newspaper information at hand or in the vicinity.

[0010] For this reason, the present inventor has proposed that a large stationary display device placed in a living room and a small (especially portable) display device used by an individual at hand have the contents displayed. Was considered unsuitable. In other words, the large display device placed in the living room is suitable for displaying the contents of a conventional television program or the like which is suitable for the whole family to enjoy together and to watch at a distance of about 2 to 3 m. On the other hand, a small (especially portable) display device placed at the user's personal level is suitable for displaying information used personally by the user (not the whole family) or textual information such as newspapers. Therefore, the present inventor has considered that a “parent-child cooperative display system” that can exhibit both characteristics in combination is needed in the future. To be more specific, the functions of the conventional TV are divided into a "base unit" (a large stationary TV set at a distance of 2 to 3 m from the user in the living room of the house) and a "child unit" (at hand of the user). And preferably a portable small television). Then, for example, a parent screen and a child screen of a television having a conventional PIP (Picture-in-Picture, parent-child two-screen display) function are assigned to the parent device and the child device, respectively.
This is because, as far as the conventional PIP function TV screen is viewed, the screen displayed on the sub-screen has many character data such as a TV shopping order screen and sports player's performance data (display of such character data). Is an area where computers are better than current TVs.) Therefore, such small screen data (mainly character data)
This is because it is desirable to display the information on the “child device” at hand of the user.

In view of the above, the parent-child cooperative display system according to the present invention for solving the above-mentioned problems of the prior art is provided with the contents of the display screen of the parent device while the parent device and the child device cooperate with each other. The contents of the display screen of the slave unit are linked in real time with each other, and the master unit and the slave unit share their screen display contents and roles with each other.

Content of the present invention. 1. A relatively large screen display unit for displaying the contents of a program mainly composed of images, based on information transmitted by television broadcasting, which is used by being installed at a position relatively distant from the place where the user is located, Large and stationary base unit, used at or near the user, having a relatively small screen display unit for displaying characters or images, a small slave unit, and the contents displayed by the base unit in real time A parent-child cooperative display system, comprising: cooperative means for displaying contents cooperated and interlocked in substantially real time on the screen display unit of the slave unit.

[0013] In the present invention, the term "stationary type" is used to mean "impossible to move easily (non-portable type) because of its heavy weight or fixed housing." This `` stationary type '' is a type that is installed on a floor such as a living room, a wall hanging type that is hung on an inner wall such as a living room, a type that is mounted on a ceiling such as a living room or a bedroom, or a living room or a bedroom This includes a type that can be moved between a ceiling, a wall, and a floor.

Further, in the present invention, it is desirable that the slave unit is a portable type that can be freely carried by a user. However, the slave unit need not be a "portable type" as long as it is "a unit that can be used near or at hand of a user". For example, the slave unit may be a display device built in a “table” (such as a dining table) used by the user.
That is, the child machine is built in the table for four people,
The one in which the screen display of the slave unit is exposed at the center of the table is also included in the “slave unit” of the present invention. According to a configuration in which a child device is built in such a table, for example, four family members display a live broadcast program of a horse race on a stationary large-size television while displaying the program on the screen display unit of the child device in the center of the table. The betting ticket purchase screen can be used to order a betting ticket online. In addition, the family can sit at the table and watch a program introducing catalog-sold products on the screen of the stationary parent device, and display a product order screen or electronic payment on the screen display of the child device provided at the table. The user can also display an application screen to order a product or pay for the product using electronic money.

When the slave unit is built in a table or the like, the connection between the slave unit and the master unit may be made by wire instead of wirelessly. In other words, in the present invention, it is often desirable for the slave unit to cooperate with the master unit wirelessly. The transmission may be transmitted to the slave unit.

That is, in the first aspect of the present invention, it is desirable that the slave unit is wirelessly connected to the master unit. However, the slave unit and the master unit do not necessarily need to be connected wirelessly. Because a home server (data management computer) is installed for one home, all broadcast or transmitted information from a broadcast wave or an external communication network is once taken into this home server, After that, this home server
In order for the master unit and slave unit to display information linked to each other,
This is because information may be sent (re-distributed) to each of the parent device and the child device. In this case, the slave unit is connected to the home server by wireless or wire, and the master unit is also connected to the home server by wireless or wire. In other words, according to the present invention, data can be directly exchanged between the parent device and the child device. However, when the home server is used, the data is directly transmitted between the parent device and the child device. The data may be exchanged via the home server without exchanging data. (For the home server, "Nikkei Electronics" published by Nikkei BP, 1997/10
/ 6 Issue 100-170 Article "Connected Home"
See).

In the present invention, the above-mentioned "small child unit" includes an HMD (bed mount display). The HMD supports the display on the user's head or face, such as glasses, goggles, and helmets.

In the present invention, a plurality of slave units may be provided. For example, while four family members are watching a single large-sized television in the living room, the four family members each have their child devices at hand and display the screens according to their preferences and wishes on the child devices. It may be. Further, the slave unit may be built in the table for the dining table, and the screen display unit of the slave unit may be exposed at each of four portions on the upper surface of the table corresponding to the positions where four persons sit. In this case, a total of 4
Screen display units are formed on the table).

Further, in the present invention, the slave unit is a remote controller (remote controller for the master unit) which transmits an infrared signal or the like from a remote place to turn on / off a power supply of a display device such as a television and switch channels. And a device may be integrally configured. That is, an input device for a user to input control information for turning on / off a power supply of a display device such as a television and switching channels, a transmitting device for wirelessly transmitting the control information, and displaying an image. And a receiving device for receiving video information from the outside as a “remote control” in one housing (for example, a notebook-type or notebook-type information device). You may.

In the present invention, the "information transmitted by television broadcast", which is information indicating a program displayed by the master unit of claim 1, includes a television broadcast wave such as digital satellite broadcast or terrestrial wave. Information sent, CATV
(Cable TV), ie information sent by cable TV broadcasting, "push-type technology" of the Internet
Information that is automatically distributed by the "broadcast-type Internet", and live broadcast programs such as concerts and sports games that are continuously sent from the Internet homepage to the user's communication terminal who accessed it Information, etc. In particular, in the present invention, a case where "information continuously transmitted from a television broadcast station or an Internet broadcast station" is displayed on the master unit is a typical case of its use. In the present invention, "television" refers to "converting an image or text into a signal such as an electric signal or an optical signal, sending the signal to a user via a radio wave, a cable, or the like. Or, a receiver or a receiver for reproducing the above-mentioned images and characters based on a broadcasting / communication system for reproducing characters ”(Reference:“ Kojien No. 4 issued by Iwanami Shoten Co., Ltd. on September 12, 1994 ”). Version) of "television".

That is, in the present invention, the above-mentioned "information transmitted by television broadcasting" refers to a radio wave of a television broadcast (terrestrial television broadcast, satellite digital television broadcast) (a gap between a terrestrial television wave and a satellite television wave). "Broadcasting of TV Radio Waves (VBI = Vertical Blanking) Used in" Data Broadcasting "
INTERVAL)), and "Internet broadcasting stations" using the Internet's "push technology".
Automatically transmitted (transmitted) to individual users' communication terminals (computer terminals) from the Internet, programs continuously transmitted from Internet sites (homepages) to user terminals (for example, live broadcast videos of concerts), etc. Pointing to.

The "push technology" of the Internet (also referred to as "broadcast type Internet" or "Internet broadcasting") means that information is actively transmitted through the Internet without waiting for access from a user. Is a mechanism for delivering to users. However, the current push type information distribution is "Polla
The client (communication terminal) accesses the server (network connection management computer) at regular intervals, and downloads the latest information if the information has been updated. We do not select and distribute information. However, from the viewpoint of the client, it is felt that the server is automatically distributing the information, and is therefore called "push information distribution" for convenience. You can think of extending the functions of the automatic patrol software on the homepage to automate the operation. US Pointcast 199
"Pointcast," which launched its service in February 2006
Network ”provides the client with“ Pointc
By installing software called “ast” and registering your favorite field, such as news, sports, and health, you can receive the latest information in that field.
The information received from the server is displayed on the client's desktop by a ticker or screen saver, so that the user feels that the latest information is always delivered from the server.
In other words, it can be said that the homepage of the Internet can be viewed as a television.
Pp. 26, quoted by Toru Ishida, "Push Information Distribution". The “data broadcasting” will be described in detail in the following description of the third invention. Regarding the above-mentioned "program continuously transmitted from the Internet site (homepage) to the user's terminal (for example, live broadcast video of a concert)", the following newspaper article is quoted next. "Matsushita Electric Industrial has entered the Internet-based broadcasting business. It is a mechanism that transmits moving images taken with camera-integrated video to a personal computer via the Internet in real time. Yoshimoto Kogyo has recently broadcasted an event held in Osaka on a trial basis, and plans to broadcast sports games and concerts in the future. An event in which young talent appeared. The venue was shot with three digital camcorders with integrated cameras, the images were once captured on a laptop computer, and Matsushita's Internet service "Hi-Ho" in four locations in Japan, including Tokyo and Osaka.
Was transmitted to an access point by PHS (simplified mobile phone). If you access Hi-Ho, you can watch the broadcast program on the personal computer screen, you can freely specify the video camera on the screen, and you can enjoy the video of different angles. The video speed is 2 frames per second. (Omitted) "(above, 19
(From the article "Live broadcast on the Internet" of the Nihon Keizai Shimbun on September 2, 1997). At present, “real-time applications” are receiving attention. These include "Internet broadcasting" and "competitive games". “Internet broadcasting” is a form of simultaneous communication in which audio or audio and video is simultaneously transmitted to a plurality of users via the Internet. In the "competitive game", a plurality of players compete via the Internet (the above is the description of the game).
(Quoted from Newton Press, Inc., December 7, 1997, "Newton December Special Issue," p. 66).
As for “Internet broadcasting”, “Newton Press Co., Ltd., published on December 7, 1997,“ New
Ton December Extra Edition, page 72, is quoted next.
"Sounds and moving images that are transmitted and played back in real time are opening up new possibilities for using the Internet.
(Omitted) Since the introduction of Streamworks in 1995, the "streaming technology" for downloading and playing back video and audio data at the same time has undergone tremendous development and has reached today. Recently, in addition to Streamworks, there are many other systems such as a real player (real video, real audio), VDO live, Vivo active, etc.
Combined with the improvement of the communication speed such as the spread of SDN, the same quality as that of playing a movie file on a hard disk is realized. The development of real-time playback technology (...) has made a new area of broadcasting on the Internet a reality. Today, many Internet broadcasters actually broadcast, including live broadcasts, and major Internet magazines have published their broadcast schedules. (...) In the future, a completely new program that utilizes the interactivity of the Internet will appear. "

2. In the above-mentioned item 1, when the master unit displays a relatively large image on substantially the entire display screen and displays relatively small characters on a part of the display screen, A parent-child cooperative display system for causing a relatively large portion of the character displayed on the parent device to be displayed on the screen display unit.

In the present invention, the child device has a parent / child screen display function, the character portion is displayed relatively large on the "parent screen" of the child device, and the "child screen" of the child device is displayed. May display the same content as the display content of the parent device. In the present invention, the "character portion" is displayed relatively large on the screen of the slave unit, and the "background screen" of the "character portion" (the "character portion" is displayed). As the “background screen”, the same content (such as a movie image) as the display content of the parent device may be displayed. In this way, the user can know the display contents of the master unit only by looking at the screen of the slave unit.

In the present invention, the case where "a relatively small character is displayed in a part of the display screen" of the master unit is, for example, as follows.
Subtitles of foreign films (telops), subtitles of translations of conversations in interviews with foreigners (telops), texts by teletext using the gap of TV radio waves, earthquakes and disasters in ordinary TV programs There are subtitles (telops) for notifying emergency information and flips (signboards and boards displaying characters) used by commentators when commentating on a news incident in a news program.

It should be noted that "text broadcasting" in which text information is carried in gaps between television waves has been started in Japan for 12 years. Televisions with a built-in teletext receiving tuner can now watch subtitle broadcasts. This subtitle broadcast is currently being carried out by NHK and 44 private broadcasters in Japan. In addition to television broadcasting, radio F
Even in M broadcast, text information and road traffic information are distributed by radio waves (so-called “visible radio”).

In addition, a service of superimposing and transmitting a digitized data signal in a gap between television radio waves (as in the case of “teletext broadcasting” of a conventional television which has been put into practical use in Japan for 12 years), "Data broadcasting" which is a "data multiplex broadcasting service" that sends data using gaps
Has already been launched by several companies. For example, "ADAMS" of Japan Asahi Broadcasting (TV Asahi)
It distributes program information, news, and the like as HTML files (HTML format data widely used on the Internet) and reproduces them using a browser. Also,
The "Data Parade" of Tokyo Broadcasting System (TBS) of Japan is a similar service that distributes HTML files and also distributes computer programs. In addition, Japan Digital Broadcasting Service (PerfecTV), which operates digital broadcasting using communication satellites in Japan, has 199
Since February 2008, the data broadcasting service “P
erfecPC ”is started. This service uses a personal computer with a dedicated receiving board and software installed. The company plans to distribute newspapers and magazines electronically using the HTML file and software distribution functions, Internet homepage data, and distribution of game software. After the summer of 1998, it will also distribute data linked to television broadcasting (the above is the 22nd edition of the Nikkei PC December 1, 1997 issue by Nikkei BP).
Page)).

If the contents of flips (captions) and telops used in the above-mentioned news programs and the like are transmitted as digital data that can be distinguished from other images (such as images of news casters and commentators), In addition, it is easy to display the flip or the telop in a large size. However, if the flip and the telop are mixed as the image and the analog data, it is quite difficult to distinguish between the two. However, even in such a case, if there is a technique for automatically recognizing only the character portion and converting it to character data (text data), it is possible to display only the character portion in a large size on the slave unit. And such a technique has already been developed. In other words, the Nikkei Sangyo Shimbun, dated November 6, 1997, stated that subtitles in moving images were
In an article headed "NTT," he states: "Nippon Telegraph and Telephone (NTT) has announced on November 5 that it has developed a technology that can automatically recognize telops (captions) in color moving images with high speed and high accuracy. Using the density of edges and points (points where the brightness and color change rapidly), detect the frame image where the character appeared, identify the character area based on the color and telop shape, and analyze the layout Recognize character strings so that they can be applied to automatic recognition of captured character information, such as flips (signboards) used for explanations in programs. "

In addition, the technology for automatically converting voices into text as it is makes it possible to display subtitles of translations in real time when an interview is being conducted on a television in a foreign language. Of course, when an interview is being conducted in Japanese, the words can be displayed in subtitles in real time in Japanese, which is useful for the hearing impaired.

3. In the above item 1, when the master unit is displaying an image, the cooperation unit displays “information related to the image of the master unit, And information related to the image of the master unit, and information related to the image of the master unit, such as information transmitted by data broadcasting. Linked display system.

In the present invention, it is preferable that the master unit has an interactive (interactive) broadcast / communication service function capable of providing information desired by a user. Further, in the present invention, the child device is provided with a parent-child screen display function, and the parent device is displayed on the “child screen” of the child device while displaying the “related information” on the “parent screen” of the child device. Alternatively, the same information as the display content may be displayed. In this way, the user can know the display contents of the master unit only by looking at the screens of the slave unit (parent screen and child screen).

The provision of the "related homepage information on the Internet" is possible by browsing the information on the homepage linked on the Internet with a browser. It is also possible to use the "push (push) technology" of the Internet or the data distribution by the "multicast technology" of the Internet.

For example, a terrestrial data broadcasting service provided by Japan's TBS (Tokyo Broadcasting Corporation) under the name "Data Parade" (using a technology called "bitcast" developed by InfoCity, a Japanese venture company) Enables information to be provided in conjunction with programs and commercials broadcast on television. With this service, it is possible to display information on related Internet homepages simultaneously with displaying a television program on a personal computer. It is also possible to use a website where related detailed information such as a more detailed product description is posted while a commercial of a product is flowing (above,
Magazine "Nikkei Multimedia" published by Nikkei BP 1997
/ From October, October 50, "Data Broadcast Production Starts"). According to the present invention, for example, in the service of this “data parade”, when a commercial of a product is flowing to the parent device, the child device displays the related detailed information of the product of the CM,
And so on. Conventionally, the related detailed information of the product is displayed on a child screen ("window") of a television screen of a parent-child dual screen display system.

[0034] Here, "data broadcasting" refers to a media that can transmit multimedia contents such as text information, still images, video, program data, etc. to general televisions and personal computers using broadcast radio waves. That is.
In the above “data parade”, the gap between terrestrial TV radio waves (VBI = Vertical BlankingIn
terval) to deliver Internet-like content to users ’computers,
For the reception, an extension of the receiving board for teletext is used. In "bitcast", individual small "programs" are sent one after another, so that programs can be displayed in real time or can be viewed by selecting from a menu. Within the set capacity of the hard disk, the oldest programs are erased in order. However, there is a function to save the program specified by the user without deleting it.
Magazine "Nikkei Multimedia" published by Nikkei BP 1997
/ October issue, pages 53-55, "Start of Data Broadcasting").

Also, DIRECTV (Direct TV), which started CS satellite broadcasting in Japan in December 1997, plans to start satellite data broadcasting for television in the spring of 1998, linked with television programs such as sports and horse racing. We are planning to provide the information providing service. The Japan Racing Association (JRA) is considering running a horse racing program on this DIRECTV data broadcast. JRA has already started an online voting (purchase ticket) service using a telephone line, but has also begun developing a voting terminal using satellite data broadcasting, and the voting terminal will be born after 1998 ( The above is from the magazine "Nikkei Multimedia" published by Nikkei BP, October, 1997, p. According to the present invention, for example, this D
A horse racing program that uses IRECTV communication data broadcasting.
It is possible to display a screen for online voting (purchasing a betting ticket) on the child machine while broadcasting a live broadcast of the horse race to the parent machine.

A simple interactive function "Interact T," which is a satellite data broadcasting service planned by DIRECTV
"V" is a mechanism in which data to be distributed is repeatedly transmitted in a fixed cycle like a carousel (carousel), and only a necessary screen is extracted with a remote controller (remote controller). This allows the terminal to have a small memory capacity, and can be incorporated in a satellite broadcast receiving terminal as standard. DIRECTV plans to limit the data broadcasting function that is standard on this receiving terminal to the “TV program linked type” for the time being, and will provide “independent” (contents independent of TV programs) data broadcasting such as catalog shopping. Service will be an issue for the future. In this "interact TV", data repeatedly transmitted at regular intervals is extracted by a user's remote control operation according to the carousel method, and displayed on a television image. When the user operates the remote control, characters and graphics by data broadcasting are superimposed on the television image, and an operation of selecting a menu is performed by the remote control. That is, for example, in a relay program of a sports game such as a soccer game, at the left end of the screen, for example, characters indicating a menu such as “Member table, details of the progress of the game, past game results, progress of other stadiums” are displayed. When the user selects one of the above menus, the menu screen is displayed as a "child screen" ((The above is the magazine "Nikkei Multimedia" published by Nikkei BP, 1997/10) Monthly, pages 56-57, “Data Broadcast Production Starts”).

4. In the above item 1, the parent device has a parent-child screen display function (such as a parent-child two-screen method), and the coordinating means displays the parent device in a relatively large “before parent image” display. In addition, a relatively small "child screen" in the area opened like a "window" in the parent screen
Is displayed simultaneously, the screen display section of the slave unit,
A parent-child cooperative display system for displaying the contents of the “child screen” of the parent device relatively large.

In the present invention, the child device is also provided with a parent / child screen display function. The content of the “parent screen” of the parent device may be displayed as it is on the “child screen” of the device. In other words, in this case, the content of the “parent screen” and the content of the “child screen” of the parent device and the child device are in a relationship of being reversed. In this way, the user can know the contents of the parent screen of the parent machine at the same time only by looking at the screens of the child machine (parent screen and child screen).

According to the fourth invention, in a television having a conventional picture-in-picture function (PIP function; parent-child screen display function) (such as a television receiver of a parent-child two-screen system), a child screen is included in the parent screen. It is opened like a “window” (window), but this small screen is displayed in a large size on the handset at hand of the user so that the user can easily see it (displayed on a stationary television by the conventional PIP function). The child screen that is displayed is a stationary TV that is 2-3 meters away from the user.
The small size of the sub-screen is so small that it is difficult for the user (especially a myopic person) to see it clearly.) According to the fourth aspect of the invention, since the “child screen” of the master unit can be displayed on the slave unit, the “child screen” of the master unit may be continuously displayed on the master unit. The inconvenience disappears even if the display is not continued. Therefore, according to the fourth aspect, it is not necessary to keep the “child screen” displayed on the master unit (from the time when the contents of the “child screen” of the master unit are displayed on the slave unit, (The “child screen” may be turned off from the parent machine.) This eliminates the “window” on the screen of the parent machine, making the entire screen of the parent machine easy for the user to see and concentrate on. can do. That is, when a child screen is displayed like a “window” in a parent screen displayed on a display unit of one television by the conventional PIP function, the presence of the “window” indicates that the user There has been a problem that it hinders a concentrated viewing, but the present invention can solve such a problem.

5. In the above item 1, the coordination means may be configured such that when the master unit displays a moving image including a plurality of persons,
A parent-child cooperative display system for displaying, on the screen display unit of the child device, a relatively large image of a specific person designated by a user, which is displayed on the screen of the parent device.

According to the present invention, for example, an image of a plurality of persons taken together and an image of each person are broadcasted or transmitted together, and the master unit is provided with the message " Video "
Is displayed on the slave unit, "video of a specific person designated by the user" is displayed.
Note that, in the present invention, the child device is provided with a parent-child screen display function, and the “parent screen” of the child device displays the aforementioned “video of a specific person specified by the user” while displaying the child device. On the “child screen”, the display contents of the parent device (“image and image of a plurality of persons together”) may be displayed as it is. By doing so, the user can know the display contents of the parent device at the same time only by looking at the screens of the child device (parent screen and child screen).

6. In the above 1, when the master unit displays an image captured by a certain camera angle among images obtained by capturing an image of a certain object by a plurality of camera angles, On the screen display of the slave unit,
A parent-child cooperative display system for displaying an image captured by another camera angle different from the camera angle of the image displayed on the screen of the master unit.

According to the present invention, for example, in a "multi-camera angle broadcast / transmission" which is already performed in a live game of a baseball game or the like, a video from a certain camera angle is displayed on the screen display unit of the master unit. Is displayed, an image from another camera angle is simultaneously displayed on the screen display unit of the slave unit. In the present invention, the child device is provided with a parent / child screen display function, and the child image is displayed on the “parent screen” of the child device while displaying the above-mentioned “video taken from the camera angle desired by the user”. On the “child screen” of the device, the display content of the master device (for example, a video image taken from the camera angle selected by the television station) may be displayed as it is. By doing so, the user can know the display contents of the parent device at the same time only by looking at the screens of the child device (parent screen and child screen). As one method of realizing the “multi-camera angle broadcasting”, there is a method of providing one program through a plurality of channels. For example, when broadcasting baseball or soccer, cameras are currently switched by broadcasting stations, but if the video captured by each camera is sent to different channels, viewers can
By switching channels by yourself, each scene can be viewed from an angle (camera angle) desired by the user, and a “pseudo interactive (interactive) television” can be realized (December 7, 1997) Issued by Newton Press Co., Ltd. “Newton
(Excerpt from the December edition extra edition, p. 54).

7. In the above item (1), when the master unit is displaying a certain moving image, the cooperation unit is a part of the image displayed by the master unit on the screen display unit of the slave unit and designated by the user. A parent-child cooperative display system for displaying a displayed "part of an image" in a relatively large size.

According to the present invention, for example, when an image is displayed on a base unit of a bit map display (a method for displaying information in dot units), a bit in a certain area (part of the screen) designated by a user is displayed. Only the image related to the map is displayed on the slave unit in real time.

In the present invention, the child device is provided with a parent-child screen display function, and the "parent screen" of the child device is displayed with the aforementioned "part of the screen designated by the user" enlarged. The display contents of the parent device (the entire display screen of the parent device) may be directly displayed on the “child screen” of the child device. In this way, the user can know the entire display content of the parent device at the same time simply by looking at the screens of the child device (parent screen and child screen).

8. In the above item 1, the linking means may display the image at the time specified by the user in the moving image displayed by the master unit on the slave unit while the master unit is displaying a certain moving image. A parent-child cooperative display system that displays a still image.

According to the eighth aspect of the present invention, an image showing a "frame" or a part of the moving image displayed on the master unit is displayed as a still image on the slave unit. In the present invention, for example, a recording device such as a hard disk or a DRAM (Dynamic Random Access Memory) provided in a master unit, a slave unit, or a home server records a moving image displayed on the master unit in real time. Then, based on an instruction from the user, an image at a certain point in time is displayed on the slave unit as a still image.

In the present invention, the child device is provided with a parent-child screen display function, and the "parent image" of the child device is displayed in a large size on the "parent screen" of the child device. In the “child screen”, the display content (moving image currently in progress) of the master unit may be displayed as it is. By doing so, the user can know the display contents of the parent device at the same time only by looking at the screens of the child device (parent screen and child screen).

9. In the above item 1, the linking means may be configured such that, while the master unit is displaying a certain moving image, a moving image after a time point designated by a user in the moving image displayed by the master unit is displayed on the slave unit. A parent-child cooperative display system that reproduces images.

In the ninth aspect of the present invention, while the master unit is displaying the moving image, the whole moving image or a part of the screen displayed on the master unit is displayed. , Is displayed on the slave unit in a repeat (rewind / reproduce) manner. In the present invention, for example, a hard disk or DR provided in a master device, a slave device, a home server, or the like.
Record a moving image displayed on the base unit in real time on a recording device such as an AM (Dynamic Random Access Memory), and based on instructions from the user,
An image from a certain point in time is displayed on the slave unit so as to be repeated (reproduced). In the present invention, the child device is provided with a parent-child screen display function, and the “parent screen” of the child device is set.
While the “repeat moving image from the point designated by the user” is displayed in a large size, the display contents (moving image currently in progress) of the parent device are displayed as they are on the “child screen” of the child device. It may be. In this way, the user only needs to look at the screens of the child device (parent screen and child screen)
The display contents of the master unit can also be known at the same time.

In the above inventions 2 to 7, the screen having the "data parent-child relationship (association)" and the screen of the parent device are displayed on the child device. On the other hand, the inventions of 8 and 9 described above are screens having a “temporal or time-axis parent-child relationship (association)” with the screen of the parent device (for example, a time delay with respect to the screen of the parent device). Is displayed on the slave unit.

10. The inventions described above in 1 to 9 described above are cases where the parent device displays "information sent by television broadcast". In the tenth invention described here, there is a case where "information taken in from an external communication network or an external recording device" is displayed on the master unit. In other words, the tenth aspect of the present invention relates to a method in which “information taken from outside such as information taken from an external communication network and information taken from an external recording device is used by being installed at a position relatively distant from the user's place. A large and stationary base unit having a relatively large screen display unit for displaying the contents of a program mainly composed of images, and a character or image used at or near the user, based on A small slave unit having a relatively small screen display unit, and linking means for displaying, on the screen display unit of the slave unit, contents linked and linked in real time or almost in real time with the display content of the master unit. And a parent-child cooperative television system. "

Examples of the present invention include the following cases (a) to (f). (A) Browser (browsing software) that accesses information on the homepage of the Internet (information in English)
Browse and import with (draw out) ("Pull type = pu
ll-type "Internet (not" push-type = broadcast-type "Internet),
Extract the meaning of a certain English word in the English sentence using English dictionary software built into the computer terminal,
To display the meaning of the English word on the slave unit. (B) A case in which information on a homepage linked to the homepage is displayed on a slave while browsing information on a homepage on the Internet with a browser and displaying the information on the parent machine. (C) Search the commercial database PATOLIS provided by the Japan Patent Information Organization, and search the meaning of a certain term in the search output data with dictionary software while displaying the search output data on the parent machine. To display the result on the slave unit. (D) DVD (Digital Video Disk) and CD-
The encyclopedia recorded on the ROM is read, and the read information (information recorded on an external recording device such as a CD-ROM is also viewed from the parent device as “from the outside (that is, from a CD-ROM or the like). When the related information is displayed on the child device while the parent device displays the information included in the "captured information"). (E) While playing back a video game (video game) recorded on a DVD or CD-ROM on the parent device, a profile of a game character displayed in the game and hint information on capture of a displayed game development scene When related information such as is displayed on the slave unit. (F) The karaoke software recorded on the DVD or CD-ROM is played back on the master unit, the music is output from the speaker provided in the master unit, and the lyrics and the background image are displayed on the screen display unit of the master unit. When the lyrics (characters) of the karaoke are displayed in a large size on the slave unit.

Concept of the present invention. FIG. 1 is a conceptual diagram showing the concept of the overall hardware configuration of the present invention. In FIG. 1, reference numeral 20 denotes a master unit (such as a television) having a large screen display unit placed in a living room (living room) of a home, and 20a denotes a screen display unit (plasma display panel (PDP), A liquid crystal display (LCD), a cathode ray tube (CRT) or the like). Also, 31, 32, 33, 34, 35
Is a wireless transmission / reception unit (infrared communication port) for wirelessly connecting to an external device.

In FIG. 1, reference numerals 21, 22, and 23 denote slave units each having a small screen display unit for displaying, in real time, contents associated with the display screen of the master unit 20. 21a, 22a, and 23a are the slave units 21,
Screen display units (LCD,
Organic EL (electro luminescence) etc.). In addition, 41, 42, and 43 are used for wireless transmission and reception between the wireless transmission / reception units 31, 32, and 33 of the master unit 20 (that is, the master unit 20 and each slave unit 2).
The wireless transmission / reception units are provided in the slave units 21, 22, and 23 (for transmitting and receiving signals to and from each other wirelessly). Also, in FIG.
Reference numerals 2 and 53 denote wireless transmission / reception units provided for wirelessly transmitting and receiving signals between the slave units 21, 22, and 23. As described above, according to the present invention, since data communication between the master unit 20 and the slave units 21, 22, and 23 can be performed wirelessly, image data, character data, and audio data can be exchanged between the master unit 20 and the slave units 21, 22, and 23. Such content data and control signals can be mutually transmitted and received.
Therefore, by a predetermined computer program,
As desired by the user, the display contents of the parent device 20 and the display contents of the child devices 21, 22, and 23 can be shared while being linked to each other in real time. That is,
While the master unit and the slave unit cooperate with each other, the content of the display screen of the master unit and the content of the display screen of the slave unit go in real time with each other, and the master unit and the slave unit display those screens. Content and roles can be shared with each other.

[0057]

FIG. 2 shows a first embodiment of the present invention.
FIG. 3 is a schematic diagram for explaining the concept of the present embodiment mainly from the external appearance, and FIG. 3 is a schematic block diagram for explaining the concept of the present embodiment. In FIG. 2, reference numeral 1 denotes a master unit composed of a stationary large television set for home use placed in a living room; 1a, a screen display unit for displaying a screen of the TV; 2; A receiving antenna 3 for receiving a signal from a radio wave (such as a television station or an artificial satellite) is a transmitting / receiving unit 3 for transmitting and receiving data to and from an external device by radio (for example, infrared).

In FIG. 2, reference numeral 4 denotes a table (for use by a user as a family member) at a position approximately 2 to 3 m away from the master unit 1, and reference numeral 5 denotes a small table placed on the table 4. 5a is a display unit for displaying the screen of the child device 5, and 6 is the child device 5
And a support unit (which can be detached from the slave unit 5 when carrying it), and a transmitting / receiving unit 7 for transmitting and receiving data to and from an external device by wireless (for example, infrared). , 8 are speakers for audio / sound output,
It is. In FIG. 2, reference numeral 9 denotes a remote controller (remote controller) for inputting data such as characters or symbols, a channel number of a program, and a control signal such as a power ON / OFF signal. The remote controller 9 includes a keyboard for inputting characters and the like and a mouse (not shown) for inputting positional information on the screen, a trackball (not shown), and a pointing device such as a slice pad (not shown). -A device (not shown) is provided. Also,
Reference numeral 10 denotes a transmission / reception unit for transmitting / receiving data to / from an external device by wireless (for example, infrared). In the present embodiment, the remote controller 9, the master unit 1, and the slave unit 5
The wireless transmission / reception units 3, 7, and 10 enable wireless transmission and reception of signals among the three parties.

In this embodiment, only one child device (small display device) 5 is shown on the table 4. However, this child device 5 may be individually owned by all members of the family. it can. Further, in addition to the home, a work room, a public facility such as a library or a museum, or the like, may be provided with one master unit 1 and a plurality of slave units 5 as a set in a room.

Next, the operation of this embodiment will be described with reference to FIG. (A) First, a case will be described in which, when image information and character information are mixedly mounted on the base unit 1, the character information is mainly displayed on the handset 5 at hand of the user. Now, assume that the user wants to watch a certain program (in the following example, this program is assumed to be a live broadcast program of a sports game). The parent device 1 of the present embodiment is a television of a parent-child two-screen system (having a picture-in-picture function). In this case, the user operates the remote controller 9 at hand to select a desired program, and transmits a control signal from the transmission / reception unit 10 provided on the remote controller 9 to the master unit 1 by radio, thereby receiving a reception antenna. To select a channel with a favorite program and display it. Further, the user operates the remote controller 9 to change the operation mode of the slave 5
It is assumed that a mode corresponding to a request for “displaying character information in the screen of base unit 1 in large size mainly” has been set. Now, when the user instructs to output a profile of a favorite player while watching a sports game, the screen of the sports game is duplicated on the large screen of the base unit 1 (by folding), A screen of the profile (character information) of the player is displayed. The display of the character information is displayed on the base unit 1 at the same time as the display of the base unit 1 at or near the user (by the mode setting of the base unit 5).
Is also displayed large on the display unit 5a. For the user, the display of the characters (profile) is difficult to see from the distance of about 2 to 3 m (especially for myopia) by the display of the base unit 1 alone, but the display of the slave unit 5 is difficult. Can be read easily as if you were looking at a magazine or newspaper.

The data of the profile of the player to be displayed on the slave unit 5 can be displayed on the slave unit 5 by a method of wirelessly transmitting from the master unit 1 to the slave unit 5.
Other methods are also possible. As another method, for example, the signal received by the reception antenna 2 is directly transmitted to the master unit 1 and the slave unit 5 respectively, and the slave unit 5 transmits the signal in the signal received by the reception antenna 2 to the master unit 1 and the slave unit 5. (A signal centered on character information) may be selected for large display. That is, in the above-described bitcast broadcasting, etc., character data and the like are transmitted in a multiplexed manner in the gap between television waves. However, the slave unit 5 should display only the multiplexed character data in a large size. Accordingly, only the profile of the player can be displayed on the child device 5. As described above, in the present embodiment, the master unit 1 and the slave unit 5 cooperate with each other, so that the screen of the master unit 1 and the screen of the slave unit 5 are linked with each other, and the display content and the role are mutually changed. They are displayed while sharing.

In this embodiment, the characters of the profile of the player are displayed on the slave unit 5 in a comparatively large size.
The sports game displayed on the base unit 1 may be displayed in the background of the character of the child unit 5. That is,
When a sports game program is displayed on the main phone 1,
The characters of the profile of the player described above are displayed small in one corner of the display unit of the base unit 1 and are difficult for the user to read. Therefore, in the present embodiment, the character of the profile is displayed large on the child device 5, and further, the program of the sports game (the content displayed on the parent device 1) is displayed on the background thereof. it can.

FIG. 4 shows an example of the operation (A). In FIG. 4, reference numeral 12 denotes a screen displayed on the base unit 1, and reference numeral 13 denotes a screen displayed on the handset 5. Base unit 1
A foreign film (foreign movie) is displayed on the screen 12 of
A superimposed subtitle superimposed (a character string indicating the content of the conversation between the characters in the movie) 12a is displayed in the lower part of the screen in a superimposed manner. However, this subtitle (c
(action) portion is character information, so it is about 2-3 m.
It is difficult to see from the screen of parent device 1 at a remote position (especially,
(For myopic users). Therefore,
In the present embodiment, the subtitle superimposed character information is enlarged and displayed on the screen 13 of the child device 5 based on the radio signal from the parent device 1. Therefore, even a person with myopia can read only the subtitles on the screen at hand by the slave unit 5 while watching the foreign image on the large powerful screen of the master unit 1. Further, in this embodiment, in this case, while the caption is displayed large on the screen 13 of the slave unit 5, the image of the western image displayed on the master unit 1 may be displayed in the background. This is convenient because the user can grasp not only the display contents of the child device 5 but also the display contents of the parent device 1 simply by looking at the child device 5.

When a movie is viewed by reading information from a video tape according to the conventional analog recording method,
Since a signal in which subtitles and images are integrated in an analog manner is recorded on a video tape, it is difficult to extract only the subtitles from such a video tape and display the subtitles on the slave unit 5 (subtitles in analog television broadcasting). The same applies when watching a movie program with a supermarket.) That is, as in the present embodiment, the image part and the subtitle (character) part in the movie are
In order to allow the parent device 1 and the child device 5 to be assigned to separate display devices, respectively, broadcasting or transmission in a form (digital data) in which the image portion and the subtitle (character) portion can be separated from each other. Is advantageous. However, for example, “automatic recognition” of the subtitles of the movie displayed on the base unit 1 at high speed, “high-speed conversion of image data to character data (text data)”, and the converted character data Is transmitted to the slave device 5 and displayed on the slave device 5, the subtitle can be displayed on the slave device 5 almost in real time with the movie displayed on the master device 1. The same is true for a news commentary program or the like, in which the characters written on flips (signboards) used for commentary on the news are automatically recognized and image-character-converted at high speed and sent to the slave unit 5. May be displayed.
Further, if the contents of the flip are recorded as character data in a recording device built in the slave unit 5, the user can save the contents of the flip as character data in a database or the like.

(B) Next, the user operates the remote controller 9 while watching the broadcast program of the sports game.
A case will be described in which the operation mode of the child device 5 is set to a mode of “display a large child screen (by the picture-in-picture function) in the parent screen of the parent device 1”. Now, when the user instructs to output a profile of a favorite player while watching a sports game, a child screen is displayed on the parent screen of the parent machine 1 as a “window (window)”, and the child screen is displayed. The player's profile is displayed in text. At this time, the contents (display of characters) of the child screen are simultaneously displayed large on the display unit 5a of the child device 5 at or near the user.
For the user, the display of the child screen is difficult to see from the distance of about 2 to 3 m (especially for myopic persons) by the display of the parent device 1 alone, but the child device 5 is , So that only the child screen can be clearly seen as if a magazine or newspaper were viewed. The contents of the child screen displayed on the child device 5 are typically character information, but may be graphic information or video information.

FIGS. 5A and 5B show another example of the operation of FIG. 5B. 5A and 5B, reference numeral 14 denotes a screen of the parent device 1, and 15 denotes a screen of the child device 5. For example, when a celebrity talk program or the like is displayed on the screen of the base unit 1 and the user requests a profile of the person shown on the screen, the requested part of the screen of the base unit 1 is displayed. A “window” 14a indicating a profile is displayed. However, since the portion indicating this profile is mainly text information, there is a problem that it is difficult to read from the display screen of the base unit 1 located at a position of about 2 m or more. Thus, based on the wireless signal from the base unit 1, the character information of the profile and the like can be displayed on the screen 15 of the handset 5 at hand of the user. As described above, in the present embodiment, the master unit 1 and the slave unit 5 cooperate with each other, so that the screen of the master unit 1 and the screen of the slave unit 5 are linked with each other, and the display content and the role are mutually changed. They are displayed while sharing.

In the present embodiment, as shown in FIG. 5C, a "window" -shaped "child screen" 15a is displayed at, for example, the lower right position of the child device 5, and this "child screen" is displayed. Alternatively, the display content of the “parent screen” of the parent machine 1 may be displayed as it is. In other words, in this case, the contents of the “parent screen” and “child screen” of the parent device 1 are the contents of the “child screen” and “parent screen” of the child device 5, respectively (that is, The content of the parent screen and the content of the child screen are reversed with respect to the child device 5). In this case, the user who is looking at the handset 5 near or at hand can simply grasp the contents of the profile and the contents of the main screen of the base unit 1 simply by looking at the display contents of the handset 5, which is convenient. .

(C) Next, while watching a relay program such as a sports game or a celebrity talk, the user uses the remote controller 9 to change the operation mode of the slave unit 5 to “the screen of the master unit 1. A description will be given of a case in which a mode designated as "a person specified by the user among the images of a plurality of persons inside is enlarged and displayed on the child device 5" is set. Now, as shown in FIG. 6A, the three persons 18a and 18
It is assumed that video images of images b and 18c are simultaneously broadcast and transmitted. In this case, for example, the “three persons 18 a,
18b and 18c are simultaneously broadcasted and transmitted to the user's receiving terminal (in this case, the master unit 1) together with the "three video data obtained by imaging three persons up." Suppose you have

First, the user looks at the screen 16 of the master unit 1 shown in FIG. 6A, and displays an icon (pictogram) for selecting a screen in which each person is imaged up. Is transmitted to the base unit 1 by the remote controller 9. Then, as shown in FIG. 6B, each person 18a, 18a
Emoticons 19a and 19c on the images of b and 18c, respectively.
b and 19c are displayed. Therefore, for example, when the user desires to display a close-up image of the person 18c on the child device 5, as shown in FIG. 6C, the user changes the icon 19c displayed on the person 18c to A cursor (arrow) 91 is used to select and indicate. Then, as shown in FIG. 6 (d), video data of the person 18c taken up by the TV radio wave and taken up is sent to the child device 5 via the parent device 1, and The screen 17 shows the person 1
8c is displayed. In this case, as shown in FIG. 6D, a frame of the child screen 17a is displayed in the lower right corner of the screen 17 of the child device 5 (using the parent-child dual screen method), and the child screen 17a is displayed. And screen 1 of master unit 1
6 may be displayed. By doing so, the user can grasp not only the enlarged image of the selected specific person 18c but also the display contents of the base unit 1 simply by looking at the screen 17 of the handset 1, which is convenient. .

(D) Next, while watching a relay program such as a celebrity talk or a sports game, the user uses the remote controller 9 to change the operation mode of the slave unit 5 to "a certain object (in this case, A video (multi-camera angle video) of a celebrity talk or a sports game taken from a plurality of angles and places, and is captured from other angles and places other than the video displayed on the base unit 1. The following describes a case where the mode is set to "display the displayed video on the slave unit 5".
For example, assuming that a sports game relay program (multi-camera angle video program) is being broadcast and transmitted from a television station, for example, the television station may say, "From behind the backnet, from the first base base, From the back screen side, from the third base base side, etc., images are taken from a plurality of (multi) camera angles, and images of those multi camera angles are simultaneously broadcast / transmitted to the viewer side. On the viewer side, the user can freely select and view the video from among those videos. This is called “multi-camera angle broadcasting / transmission”.

In the case of the “multi-camera angle broadcast / transmission”, usually, the screen of the base unit 1 contains, for example, a video image picked up by the broadcaster at a camera angle of “from the backnet side”. Is displayed. Now, it is assumed that the user has transmitted a command to the parent device 1 with the remote controller 9 that the user wants to display an image captured by another camera angle on the child device 5. Then, in one corner of the screen of the base unit 1, a camera angle other than the camera angle “behind the backnet” currently displayed on the base unit 1 is “from the first base base side, from the back screen side. A character such as "from the third base base" and an icon for selecting the character are displayed. Then, for example, the user
When the user wants to display a video image taken with the camera angle "from the base base side" on the slave unit 5, the user clicks the icon indicating "from the base base side" to select it. Then, while the image captured by the camera angle “from the back net” is still displayed on the base unit 1, the child device 5 is also captured by the camera angle “from the first base”. The displayed video will be displayed. At this time, both the parent device 1 and the child device 5 are of the parent-child two screen system,
The parent screen of the parent and child 1 displays an image of “from the backnet side”, and the child screen displays an image of “from the first base base side”. An image of “from” may be displayed, and an image of “from the backnet side” may be displayed on the child screen. That is, in this case, the display contents of the master unit 1 and the slave unit 5 are in a relationship in which the master screen and the slave screen are reversed from each other (FIG. 6).
(Similar to that shown in (d)).

(E) Next, while watching the relay program such as the celebrity talk, the user uses the remote controller 9 to change the operation mode of the slave unit 5 to “for example, A case will be described in which a mode in which "a part specified by the pointing device is displayed large on the child device" is set. Now, it is assumed that the user is watching a celebrity talk program, and a video of a scene in which a plurality of celebrities (actors and the like) are talking is displayed on the screen of the master unit 1. At this time, when the user designates only a face part of one celebrity (favorite) who is a fan with a pointing device such as a mouse and clicks and selects the face part, only the face part is enlarged and the child is enlarged. It is displayed on the display unit 5a of the device 5. Therefore, the user can enlarge and display only the face of the favorite celebrity (actor) on the handset 5 at hand and see it nearby.

FIG. 7 is a diagram showing an example of the operation (E). In FIG. 7A, reference numeral 16 denotes a screen of the parent device 1 and 17 denotes a display screen of the child device 5. Now, it is assumed that the user is displaying a program of a talk with a celebrity on the base unit 1. Therefore, three celebrities 18 are displayed on the screen of base unit 1.
a, 18b and 18c are shown. Now the user
Suppose you want to see only the face of celebrity 18c, who is a personal fan, greatly enlarged. In order to realize this, the user first needs to enter the "Celebrity 18"
c face part ”(“ part of screen ”desired by the user)
Must be specified using a pointing device such as a mouse. FIGS. 7B to 7D show this operation. First, as shown in FIG. 7B, when the user gives a predetermined instruction using the remote controller, a reference point 92 for designating the “part of the screen” is displayed on the screen 16 of the base unit 1. You. The user places a cursor (arrow) on the reference point 92.
As shown in FIGS. 7C and 7D, a part of the screen desired to be enlarged is designated as shown in FIGS. 7C and 7D, for example, by dragging the cursor 93. And
The user uses the remote controller 9 to instruct the parent device 1 to enlarge and display the specified “part of the screen” on the child device 5. Then, as shown in FIG. 7E, this "part of the screen" (in this case, the face of the celebrity 18c) is enlarged and displayed on the screen 17 of the child device 5.

That is, the user enlarges and displays the specified “part of the screen” (the part surrounded by a rectangle indicated by reference numeral 94 in FIG. 7D) with the handset 5 at hand. A command of wanting is issued to the parent machine 1 through the remote controller 9. Then, the video data corresponding to the “part of the screen” is wirelessly transmitted from the parent device 1 to the child device 5 almost in real time. This is because the screen of the base unit 1 is of the “bitmap display type”,
It is possible to take out the image data of only "part of the screen" partitioned as described above and wirelessly transmit the image data to the child device 5. Then, based on the wireless signal, the handset 5 displays the face portion 94 of the celebrity 18c (the portion specified by the user with the pointing device) in an enlarged manner. Further, even if the face of the celebrity 18c moves on the screen of the base unit 1, it is automatically tracked by a computer program (for example, "agent (electronic secretary) technology"). The image of the face portion of the celebrity 18c is continuously transmitted from the base unit 1 to the handset 5 by radio, and the handset 5 is continuously provided with the celebrity 18c.
The face portion (part of the screen specified by the user) is enlarged and displayed. In this case, FIG.
As shown in (e), while the face of the celebrity 18a is displayed large on the screen 17 of the child device 5, a "child screen" 17a is formed in the lower right corner, and the child screen 17a is formed.
Alternatively, the video currently being displayed on master device 1 may be displayed in real time as it is. In this way, the user only needs to look at the handset 5 and see the celebrity 1
This is convenient because not only the enlarged image of the face 8c but also the contents of the screen of the master unit 1 can be grasped in real time.

(F) Next, as a function provided in the present embodiment, when a homepage with the Internet is accessed by the base unit 1 (particularly, when a concert or theater is accessed via the Internet from the site (homepage)). If you are receiving live broadcasts / programs continuously)
Next, a case where the homepage at the “link” destination related to the homepage is browsed by the slave unit 5 will be described. FIG. 8 shows an example of this case.
In FIG. 1, information on a homepage provided by “@TV” is displayed. Then, while displaying the information of this home page on the screen 51 of the display unit of the main unit 1, the user inputs the information of another home page (the one provided by "@newspaper") linked to the home page. It can be displayed on the display screen 52 of the child device 5. Conversely, the user can also display the information of the home page before linking on the screen 52 of the child device 5 while displaying the information of another home page at the link destination on the screen 51 of the parent device 1. As described above, in the present embodiment, the master unit 1
The screen of the parent device 1 and the screen of the child device 5 are displayed while being linked to each other by the cooperation between the child device 5 and the child device 5.

In the present embodiment, as shown in FIG. 8, the child device 5 adopts a parent-child two-screen system, and the display screen 52 of the child device 5 displays the above-mentioned “parent device 1”. Is displayed as the "parent screen" while the "child screen" 52a at the lower right corner of the drawing shows the same content as the display content of the parent device 1 (the original home page). Information) is displayed as it is. In this way, the user simply looks at the screen (parent screen and child screen) of the child device 1 at hand or in the vicinity, and displays the display contents of the parent screen of the child device and the display contents of the parent device 1 (=
This is convenient because the display contents of the child screen of the child device 5 can be simultaneously grasped at a time. Here, a case has been described where the information of the home page of the “link” is displayed on the slave unit 5 while the information of the Internet home page is displayed on the base unit 1. While displaying a television image from a television wave or a satellite television wave on the base unit 1, the related information sent by “data broadcasting” using the gap of the television wave may be displayed on the slave unit 5. .

(F) Next, as a function provided in the present embodiment, a plurality of television program information transmitted from a digital satellite is received, and a program selected by a user arbitrarily is selected from the information. Will be described on the screen of the base unit 1 while displaying the counter program on the handset 5. Here, the “back program” is a program that is currently “received” by the user's television broadcast receiver (parent device 1) but is not currently “displayed” because the user has not selected it. That is. FIG. 9 is a diagram for explaining the operation of this function. FIG. 9 (a) and (b)
, The television program selected by the user is displayed on the screen 53 of the base unit 1. On the other hand, the child device 5 displays the counter program. The content of the program on the opposite side of the slave unit 5 is determined by transmitting a received signal from the receiving antenna 2 (see FIG. 2) to the slave unit 5 via the base unit 1 (relayed).
Displayed on the slave unit 5 (in the present invention, the signal from the receiving antenna 2 is transmitted directly to the antenna provided in the slave unit 5 without passing through the relay of the master unit 1). Good).

The counter program displayed on the slave unit 5 may be any one of the counter programs selected by the user or a plurality of the counter programs selected by the user. In the example shown in FIG. 9, a total of nine counter-programs selected by the user are displayed on a total of nine divided screens a to i obtained by dividing the screen display unit. Then, for example, when the program displayed on the base unit 1 is in CM (commercial), the user selects an arbitrary program from among the programs displayed on the slave unit 5,
By wirelessly transmitting an instruction to “display the selected back program (for example, the back program displayed on the divided screen shown by i in FIG. 9) on the base unit 1”, the display screen of the base unit 1 is displayed. Immediately, the selected program (the program displayed on the divided screen i in FIG. 9) is displayed. The configuration for allowing the user to wirelessly transmit an instruction to “display the selected back program (for example, the back program displayed on the divided screen shown by i in FIG. 9) on the base unit 1” is wireless. For example, a "transparent touch panel" is provided on the screen display unit 54 of the slave unit 5, and the user presses (touches) the split screen i of FIG. The counterprogram displayed on i may be specified, and the channel of the specified counterprogram may be transmitted to base unit 1.

As described above, when the counter program selected by the user (the counter program displayed on the divided screen i in FIG. 9B) is displayed on the parent device 1, The program displayed on the main unit 1 until then is the same as that shown in FIG.
Instead of “the counterprogram displayed on the divided screen i of (b)”, a new screen is displayed on the divided screen i in the display screen 54 of the child device 5. Then, for example, when the CM of the program newly displayed on the split screen i is finished, the user may select “this program (the program currently being displayed on the split screen i of ) Is again displayed on the base unit 1 "by wireless transmission to the base unit 1, whereby the program is displayed on the base unit 1 again. Then, instead of this, on the split screen i of the screen 54 of the child device 5, the program that was being displayed on the parent device 1 until then is displayed again as a counter program.

Next, FIG. 9C shows another similar operation, and a program list 54 a is displayed on the screen 54 of the slave unit 5. FIG. 9C shows only a part of the program list, but the user can display the program list on the display screen 5.
4, all programs can be displayed by scrolling up and down. When a user finds a desired program, the user moves a cursor (not shown) to a portion indicating the program and clicks it, or presses a corresponding portion on a transparent touch panel provided on the screen with a fingertip. Thus, a desired program is specified. This allows
The channel of the designated desired program is transmitted to master unit 1, and the program is displayed on master unit 1.

(G) Next, as a function provided in the present embodiment, the master device 1 of the present embodiment is used to transmit the data and program of the video game transmitted by television broadcast (continuously transmitted via the Internet). An example will be described in which the image data is used to display an image of an incoming video game (including data and programs). In this case, the player (user) of the game displays the screen of the video game on the display unit 1a of the base unit 1 and plays the display unit 5a of the slave unit 5 while playing.
To display the commentary of the game (for example, a commentary that is useful for setting up a strategy to successfully complete the competitive game) with text or characters (images or graphics),
You can think of game development strategies. When multiple players play one match game together, one player displays the game screen on one master device, and each player displays "game description, original game character,・ Character data (profile) or
By displaying the "screen showing information (detailed information) related to the game" of "Game capture guide etc.", each person can think of game development strategies and find out about favorite characters it can. That is,
On the one hand, while the development of the game displayed on one base unit 1 is viewed in common by all of the plurality of persons, on the other hand, each person develops the game by viewing the related / detailed information individually displayed on the child unit 1. And strategies. Also, in this case,
The parent / child screen display function is adopted in the child device 5, and the above “related / detailed information” is displayed on the “parent screen” of the child device 5, while the parent device 1 is displayed on the “child screen” of the child device 5. Can be displayed as it is. By doing so, the user can know both the “related / detailed information” and the display contents of the base unit 1 simply by looking at the display contents of the slave unit 5, which is convenient.

(H) Next, a case where a karaoke program continuously transmitted from the accessing homepage (site) via the Internet or transmitted by satellite digital television broadcasting is displayed on the master unit. The operation of this embodiment will be described. In this case, the display unit 1a of the base unit 1 displays a background video (environmental video or the like) of the karaoke song currently selected and sung by a certain user and the lyrics of the song. Also, the singing user, at the same time,
The lyrics of the song are displayed on the display unit 5a of the handset 5 at hand, and the user can sing while watching the lyrics near the user. Therefore, in the present embodiment, a plurality of persons present at the place can listen to the singing while looking at the screen of the base unit 1,
The person singing can sing while watching the lyrics displayed on the screen of the handset 1 at hand. Therefore, even if the singing user is a myopic person, the distant large-size TV master unit 1
Without looking at it (characters displayed on the screen of the main unit 1 in a distant place 2 to 3 meters away are difficult for a person with shortsightedness to see) and sing while watching the lyrics on the display unit of the child unit 5 near the user. it can. Therefore, unlike a conventional case, a person with myopia does not easily see the lyrics of karaoke and cannot sing well because the screen on which the lyrics are displayed is far away. In this case, the display of the lyrics by the child device 5 is performed from the parent device 1 to the child device 5.
In addition, this is realized by transmitting the lyrics data wirelessly in real time.

Further, in the present embodiment, the child device 5 is provided with a parent / child screen display function, and the lyrics are displayed relatively large on the “parent screen” of the child device 5 while the “child screen” of the child device 5 is displayed.
May display the same karaoke background image (environmental video, etc.) as the display content of the base unit 1. In this way, the user holding the handset 5 can view the karaoke lyrics and the karaoke background image at the same time only by looking at the screen of the handset 5 (parent screen and child screen). This is convenient. When a plurality of users are using karaoke together, the child device 5 of one singing user has the lyrics of the song currently playing as described above. Although it is convenient to display it, the child device 5 owned by another user has a song selection screen for selecting another karaoke song, that is, a list of selectable songs (list of song titles and singers). Screen), a screen for searching for a desired song from a title or a singer, a screen for selecting a desired song, an identification code of the selected song, and a signal for instructing to play the next song. Various screens such as an operation screen for transmission from the device 5 to the master device 1 can be displayed. That is, here, the slave unit 5 can be used as a “remote control” for performing a karaoke music selection operation or the like.

In the present embodiment, the speaker for outputting the sound and sound of the program of the master unit 1 is provided not only in the master unit 1 but also in the slave unit 5 at hand of the user (FIG. 2).
8). Therefore, there is a problem that a person who is deaf or hard of hearing cannot hear the sound unless the sound of the master unit 1 is increased.
This makes it easier for people who are hard of hearing to hear. Further, in the present invention, in addition to (or instead of) the speaker, the child device 5 may include an earphone jack or the like.

In the present embodiment, as shown in FIG. 2, the remote controller 9 and the slave unit 5 are each configured as separate hardware, but in the present invention, both are configured as hardware. May be configured integrally (both are housed in one housing) (the remote controller 9).
Both the slave unit 5 and the slave unit 5 are placed at or near the user, which is more convenient.) Further, in the present embodiment, as shown in FIG. 2, the handset 5 is supported by the table 6 for placing on the table 4, but in the present invention, the handset is, for example, a notebook type. Various types, such as a thing and a notebook type, can be used. Further, in the present invention, the slave unit may be one that can be used as a personal computer, such as a notebook personal computer having a wireless transmission / reception function. Further, it is desirable that the slave unit 1 is a portable type such as a notebook type, but as shown in FIG.
Or a type built in the table (only the screen display unit is exposed on the upper surface of the table).

In this embodiment, the present invention can be used not only at home or work, but also in a movie theater, for example. When used in a movie theater, a conventional movie screen display device is the "parent device" of the present invention. Then, the subtitle portion of the Western movie can be displayed and viewed on a portable handset at hand of the user, or displayed on a handset provided in front of the user's seat. In addition, related information of a movie, such as a profile of a movie director or an actor in the movie, can be displayed on the slave unit. In addition, information (sightseeing information, eating and walking information) about the location (region) of the scene appearing in the movie, restaurant information such as restaurants appearing in the movie,
“Related information” such as retail store information on department stores appearing in a movie and information on products appearing in a movie can also be displayed on the handset while watching the movie.

In this embodiment, in addition to using the slave unit in cooperation with the master unit, the slave unit can be used alone to browse e-mail, browse the Internet homepage, display a television broadcast program list, and display a word processor / table. It can be used for office work such as calculation and database. In the present embodiment, when there are a plurality of slave units 5, data exchange and data communication can be performed between the slave units. That is,
Wireless transmission / reception of electronic mail, transmission / reception of television programs by radio, and the like can be performed between the slaves.

Embodiment 2 Next, FIG. 10 is a diagram showing a second embodiment of the present invention. In this embodiment, an HMD (Head Mount Display) is used as a slave unit. That is, the slave unit used in FIGS. 1 to 9 has almost the same form as a current remote controller of a television, a notebook personal computer, a personal digital assistant (PDA), and the like. , The slave unit is constituted by an HMD. In FIG. 10, the display of the parent device 61 is set at a position about 2 to 3 m away from the user 60, whereas the display of the child device 62 is
Is supported on the head (in front of the face). In FIG. 10, support means (a band-shaped member wound around the head,
A conventionally known supporting means such as a frame-shaped member of a pair of glasses or a helmet-shaped member is not shown.

In FIG. 10A, the screen of the master unit 1 and the slave unit 6
The two screens are shifted vertically in the figure so as not to overlap each other in the field of view of the user 60. Specifically, it is positioned so that the screen of the child device 62 is below the field of view of the user 60, and the screen of the parent device 61 is in front of or slightly above the field of view of the user 60. In this case, how the screen of the master unit 61 and the screen of the slave unit 62 cooperate with each other, and how the roles are shared are shown in FIGS.
This is the same as that described with reference to FIG.

In FIG. 10B, the screen of the master unit 1 and the slave unit 6
4 are positioned so as to overlap each other in the field of view of the user 60. Specifically, the screen of the child device 64 and the screen of the parent device 63 are positioned so that they are both superimposed in the field of view of the user 60, and are both in front of the field of view of the user 60. And this FIG.
In the example of (b), the screen of the slave unit 64 is “see-through”.
Type, that is, "transmission type". That is, the user 60 transmits the master device 6 through the screen of the slave device 64.
3 can also be viewed. Therefore, for example, the user can display captions (characters) obtained by translating the conversation of the characters on the child device 64 while displaying the movie on the parent device 63. The user 60 can also display a game character on the screen of the child device 64 while displaying the background screen of the game or movie on the parent device 63. Except for this, the manner in which the screen of the master unit 63 and the screen of the slave unit 64 cooperate with each other and cooperate with each other, and the role sharing between them, are the same as those described with reference to FIGS.

In the example shown in FIG. 10C, the slave unit 66 is movable between a position in front of the user 60's eye and a position above the same. Therefore, the user 60 sets the child device 6
When the user wants to use the child device 6, the child device 66 is brought to a position in front of the eyes, and when the child device 66 is not used, the child device 66 is placed above the eyes (above the head; FIG. 10C). (The position indicated by reference numeral 66 '). In this case, the screen of the master unit 65 and the screen of the slave unit 65
The method of interlocking and the sharing of roles are the same as those described with reference to FIGS.

Embodiment 3 FIG. FIG. 11 shows Embodiment 3 of the present invention.
It will be described based on. In FIG. 11, reference numeral 71 denotes a master unit. The master unit 71 includes a receiving unit 72 that receives an external signal (such as a satellite television wave), a CPU (Central Processing Unit) 73 that receives data received by the receiving unit 72 and processes the data, and data from the CPU 73. A display unit 74 for displaying a screen based on the external storage device 7 for exchanging data with the CPU 73 and recording the data.
5, and a transmission unit 76 for wirelessly transmitting data from the CPU 73. In FIG. 11, reference numeral 77 denotes a slave unit, which displays a predetermined screen based on a signal from the transmission unit 76. Reference numeral 78 denotes a remote controller (remote controller), which receives a user's instruction from the C
This is for wireless transmission to the PU 73. This remote control 78
May be formed integrally with the slave unit 77 in terms of hardware, or may be formed separately.

Next, the operation of the third embodiment will be described. According to the third embodiment, the same usage as that described in the first embodiment or the second embodiment is possible. In the third embodiment, a display screen of the parent device and a “screen related on the time axis” (a screen having a parent-child relationship on the time axis) can be displayed on the child device 77. First, when a receiving unit 72 receives a terrestrial wave or a satellite television wave carrying a signal (moving image information) indicating a certain moving picture program, the CPU 73
Causes the display unit 74 of the master unit 71 to display this information in real time, and sends the same information to an external storage device (such as a hard disk device) 75 in real time for recording. If the command from the remote controller 78 is “display a screen at the same time as the screen of the master unit 71 on the slave unit 77”, the CPU 73 displays the display unit 74 of the master unit 71.
A signal a for displaying a screen at the same time on the time axis as indicated by (a in FIG. 11 indicates a signal flow of “current data” in FIG. 11) is transmitted to the slave unit 77.

If the command from the remote controller 78 is "display a screen delayed by 5 seconds from the screen of the master unit 71 (a screen 5 seconds in the past) on the slave unit 77", A signal b for displaying a screen (moving image) delayed by 5 seconds on the time axis from that displayed on the display unit 74 of the master unit 71 (b is a signal flow of “past data” in FIG. 11). Is read from the external storage device 75, and the signal b is transmitted to the slave unit 77. In addition, the CPU 73 determines that the command from the remote
Rewind the screen of FIG. 1 for 5 seconds and play it back on the slave unit 77 ". In this case, the screen from 5 seconds before the time when the command was issued to the time when the command was issued is displayed. A signal b indicating a screen of a moving image (in FIG. 11,
b indicates the flow of a signal of “past data”) from the external storage device 75 and reads the signal b
Send to Also, during the “playback” of this moving image, the CPU 73 asks “display a screen of“ one frame ”in the data constituting the moving image being played back as a still image on the slave unit 77”. When the command is issued from the remote controller 78, the child unit 77 displays the "one frame" screen as a still image.

Also, the CPU 73 issues a command from the remote controller 78 to “display the scene (frame) currently displayed on the display unit 74 of the parent device 71 as a still image on the display unit of the child device 77”. Is issued from the external storage device 75, the signal b indicating the screen displayed on the display unit 74 of the master unit 71 at the time when the command is issued is read out, and the signal b is read. To cause the slave unit 77 to display the still image. During the various operations described above, a program of a moving image is displayed on the master unit 1 as usual, and during that time, information related to the slave unit on the time axis in real time or almost real time (past time). Moving image or a still image at a certain point in the past).

Embodiment 4 Next, a fourth embodiment of the present invention will be described with reference to FIG. The differences between the fourth embodiment and the third embodiment are as follows. That is, FIG.
In the third embodiment, the receiving unit 72, the CPU 73, the external storage device 75, and the transmitting unit 76 are integrated in hardware with the display unit 74, and all of these components are referred to as a “master device 71”. It is integrated as hardware. On the other hand, in the fourth embodiment illustrated in FIG. 12, the receiving unit 72, the CPU 73, and the external storage device 7 illustrated in FIG.
5 and the components shown as the transmission unit 76 are separated from the display unit 74 in terms of hardware, and are made independent as a “home server (management computer) 81” and its “external storage device 82”. Things.

That is, in FIG.
A home server (management computer) 82 that can exhibit the functions of the receiving unit 72, the CPU 73, the external storage device 75, and the transmitting unit 76 of the first embodiment (third embodiment) 82 is an external storage device of the home server 81. . Reference numeral 83 denotes a master unit for displaying a screen based on a signal from the home server 81 (transmission signal by wire transmission), and reference numeral 84 denotes a base unit based on a radio signal from the home server 81.
This is a slave unit for displaying a screen linked to the screen of the master unit 83 in real time or almost in real time. Reference numeral 85 denotes a remote controller that is configured integrally with or separate from the slave unit 84 and wirelessly transmits a command (request) from a user to the home server 81.
The home server 81 constantly transmits a signal (such as a moving image program) from an external television signal to the external storage device 8.
2 and read out while storing (recording) them on the main unit 83 in real time or almost real time.
In addition, the home server 81 wirelessly transmits a signal (such as a moving image program) from the external television wave to the slave unit 84 in real time or almost in real time to display the screen, or The past image data stored (recorded) in the external storage device 82 is read, and the past data is wirelessly transmitted to the slave unit 84 to be displayed on the screen.

According to the fourth embodiment, almost the same effects as those of the third embodiment can be obtained. That is, when the user makes a predetermined request using the remote controller 85,
Home server 81 causes child device 84 to display various screens in cooperation with the screen of parent device 81. In other words, the home server 81 controls the slave unit 84 to display, for example, various screens (contents related to the display contents of the master unit 83) as described in the first, second, and third embodiments. Screen) can be displayed. For example, the home server 81 can enlarge only a part of the screen displayed on the parent device 83 and display it on the child device 84. Also, the home server 81 can rewind and reproduce the moving image displayed on the parent device 83 in the child device 84. In addition, the home server 81 can cause the slave unit 84 to display an image indicating a scene at a certain point in time of the moving image displayed on the master unit 83 as a still image.

Note that the home server 8 of the fourth embodiment
1 is to transmit the data of the “character portion” such as the caption displayed on the parent device 83 to the child device 85, to transmit the contents of the “child screen” displayed on the parent device 83 to the child device 84, Master 8
3 and the “related information” (related information on the Internet and homepage, information on the data broadcasting of the television, etc.) to the slave unit 84, and in the image displayed on the master unit 83. The “part of the screen” specified by the user is transmitted to the child device 85, and the “enlarged image of a specific person” among the images of a plurality of persons displayed on the parent device 83 is displayed on the child device 8.
5 or a function of transmitting data of “video taken by another camera angle different from the image displayed on the master device 83” to the slave device 85 from the image displayed on the master device 83. is there.

When image data is wirelessly transmitted from the home server 81 or the master unit 83 to the slave unit 85 shown in FIG. 12, for example, since the data amount is large, the transmission takes some time. "Complete real-time interlocking and coordination" between the display content of the slave unit 85 and the display content of the slave unit 85 may be difficult, but "almost real-time interlocking and coordination"
Is possible with current technology. In addition, the first of "Nikkei Electronics 1997/10/6" issued by Nikkei BP
On page 55 (article “Connected Home”), the following is stated. "In 2005, wireless LANs using infrared will also be able to transmit at 100 Mbit / s or more. However, infrared will not be able to send signals to adjacent rooms separated by walls."

[0101]

As described above, according to the present invention, since the master unit and the slave unit cooperate with each other, the screen of the master unit and the screen of the slave unit can be displayed while interlocking with each other. ing. That is, according to the present invention, (1) “the character portion in the screen where the image and the character are displayed on the parent device,” (2) “the child screen is displayed in the parent screen. (3) `` Part of the screen displayed on the master unit specified by the user '', `` Part of the specified person in the video of multiple people displayed on the master unit '' `` Video '' or (4) `` When a video captured at a certain camera angle among videos captured at a multi-camera angle is displayed on the parent device, a camera angle different from that video is displayed. Can be displayed in a large size (enlarged display) on a small display device at hand or in the vicinity of the user, so that even people with myopia can easily (1) use the Characters on the screen where images and characters are displayed on the screen, and (2) `` The child screen is displayed on the main screen. (3) `` Part of the screen displayed on the master unit specified by the user '', `` Part of the specified person in the video of multiple people displayed on the master unit '' `` Video '' or (4) `` When a video captured at a certain camera angle among videos captured at a multi-camera angle is displayed on the parent device, a camera angle different from that video is displayed. And so on can be clearly and clearly seen.
That is, a conventional television or the like is located in a living room at a position relatively distant from the user (a position distant from 1 to 3 m.
m away), it was not easy for a person with shortsighted eyes to clearly see the characters, the child screen, and a part of the image displayed on the television.
However, according to the present invention, even a person with myopia or the like can clearly see a part of the screen or the like.

In the present invention, the child device is provided with a parent / child screen display function (parent / child two-screen system), and the above-mentioned “parent device” (1) to (4) is displayed on the screen display section of the child device. By displaying the same image as the screen of the parent device on the “child screen” of the child device while displaying the “contents linked / related to the display content of the child device” as the “parent screen”, the user can This is very convenient because the display contents of the master unit can be grasped only by looking at the nearby slave units.

Further, according to the present invention, in a conventional television receiver or personal computer having a picture-in-picture function (PIP function; parent-child dual screen display function), a child screen is a "window" ), But this small screen is displayed in a large size on the small handset at hand of the user so that the user can easily view it (small screen displayed on the stationary television by the conventional PIP function). Is because the stationary TV is set a few meters away from the user and the size of the child screen is small,
For users (especially myopic people), there was a problem that it was difficult to see clearly). Also,
In the present invention, since the above-mentioned “child screen” can be displayed on the child device, the above-mentioned “child screen” may or may not be displayed on the parent device. Therefore, according to the present invention, it is not necessary to display the above-mentioned “child screen” on the parent device (there is no need to display the “child screen” on the parent device like a “window”). There is an effect that an unnecessary “window (child screen)” is eliminated on the screen, and the screen of the master unit can be made easy for the user to see and appreciate. That is, when a child screen is displayed like a “window” in a parent screen displayed on a display unit of one television by the conventional PIP function, the presence of the “window” causes the user to concentrate on the parent screen. However, the present invention can solve such a problem.

Further, according to the present invention, information automatically distributed (“Internet broadcast”) from the Internet by “push technology” is displayed on the base unit 1 and related to it while the whole family sees it ( The information of the other homepage (the link destination) can be viewed and displayed by each member of the family on the handset at hand. Therefore, it is possible to view information on a plurality of related homepages from multiple perspectives while the family and the individual are in one living room. Further, according to the present invention, it is possible to display the related information transmitted by “data broadcasting” on the slave while displaying the terrestrial television program or the television program from the satellite on the master.

Further, according to the present invention, based on a user's request, a moving image from a certain point in time can be rewound and reproduced in a child device in association with a moving image displayed on the parent device, For example, it is possible to display only an image showing a scene at a certain point in time of a moving image displayed on the mobile device as a still image on the child device.

In the present invention, about 2
By providing a speaker in a handset near the user, apart from a stationary television about 3 m away, even a person with a short ear can easily and clearly hear the sound of the program provided from the TV. , Become audible. Further, in the present invention, the content to be displayed on the child device by incorporating the recording device in the child device, for example, the above-mentioned "character portion (screen displayed on the parent device, in which the image and the character are mixed) ( Subtitle (telop) and flip (signboard) character information in the program), "child screen part of the screen where the child screen is displayed in the parent screen", and "displayed on the parent machine" By recording an image at a certain point in time of a moving image (still image) or the like in a recording device built in the slave unit, an image / character database edited by the user independently (“user's own program” ) Can be created.

Note that Japanese Patent Publication No. 6-61390 entitled "Parent and Child Electronic Game Apparatus" (applicant: Casio Computer) discloses the following apparatus. "The large electronic game device is connected to the small electronic game device so that the game of the small device is executed on the large game device. Therefore, the child electronic game device is set on the parent electronic game device. With this, the user can enjoy the game with a large key and a large screen that is easy to see and powerful.Also, the game can be played on the child electronic game device and the execution process can be transferred and displayed on the display surface of the parent electronic game device, Conversely, a game can be played on the parent electronic game device, and the execution process can be displayed on the display surface of the child electronic game device by transferring the plurality of child electronic game devices to a number of parent electronic game devices. It is also possible to enjoy the battle game. ”Also, FIGS. 14 and 15 (see FIG.
As shown in Example), when a parent electronic game device and two children's electronic game devices are connected and a competitive game is played, the player sets the position of the mine by using the display device of the parent electronic game device and the opponent. Is not displayed on the display device of the child electronic game device, but is displayed on the own child electronic game device. In other words, the position of the mine that the user does not want to show to the opponent can be displayed only on his / her own child electronic game device. As described above, according to the above publication, when a parent electronic game device and two children's electronic game devices are connected and a competitive game is played, the player sets the position of the mine set by the display device of the parent electronic game device. It is not displayed on the display device of the opponent's child electronic game device, but is displayed on its own child electronic game device.
In other words, the position of the mine that the user does not want to show to the opponent can be displayed only on his / her own child electronic game device. Thus, in the above publication,
"A technology to make the display content of the child electronic game device slightly different from that of the parent electronic game device (so that the position of the land mine that the user does not want to show to the opponent can be displayed only on the child electronic game device. ) "
It has been disclosed. However, the above publication presupposes the electronic game device to the last, and the display content of the child electronic game device is basically basically the same as the display content of the parent electronic game device. The exception is that the position of the mine that the user does not want to show to the opponent can be displayed only on his / her child electronic game device. This means that if the shell fired by the own tank hits the opponent's tank in the right column (column 9), lines 8 to 16 of the above publication, the main CPU
At 14, this is determined, and the CRT display device 3 and each of the children's electronic game devices 6 and 6 are provided with their own scoring data obtained by adding the opposing tank destruction data and displayed. (Omitted) "is obvious.
In other words, this description clearly shows that "self's score data added to the opponent's tank destruction data" is commonly displayed on the parent electronic game device and the child electronic game device. That is, in the above-mentioned publication, the display contents of the parent electronic game device and the display contents of the child electronic game device are basically always the same and common.
As described above, the presence / absence of “the position of the mine that the user does not want to show to the opponent” may be slightly different between the display of the parent electronic game device and the display of the child electronic game device. On the other hand, the present invention presupposes a "television" having a characteristic of "running a program based on information transmitted by a television broadcast (including via the Internet)" such as a television wave. The information related to the display content of the “master device” that is “TV” (related information that is basically different from the display content of the master device) is displayed on the “child screen” of the “master screen” of the master device ( The idea (technical idea) of displaying the information on the screen display unit of the “child device” instead of the conventional parent-child two-screen method is used as a starting point.
As described above, in the device disclosed in the above publication,
What is displayed on the “parent” electronic game device is a game screen (a game screen read out from a CD-ROM or a ROM cassette and displayed). It is not a "program that is played continuously based on the information that comes." Further, in the above-mentioned publication, what is displayed on the child electronic game device is basically “the same game scene and score data” having the same contents as those of the parent electronic game device. It is basically different from what is displayed on the parent device (when the image and text are different, the same image has different targets, the same target has completely different camera angles, etc.)
However, it is not information that is linked or linked to the display contents of the parent device. In these respects, the above-mentioned publications and the present invention have completely different objects (televisions and game devices).
The effect and the technical idea are completely different.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing the concept of the present invention.

FIG. 2 is a schematic diagram showing Embodiment 1 of the present invention.

FIG. 3 is a schematic block diagram illustrating the concept of the first embodiment.

FIG. 4 is a diagram for explaining the operation of the first embodiment.

FIG. 5 is a diagram for explaining the operation of the first embodiment.

FIG. 6 is a diagram for explaining the operation of the first embodiment.

FIG. 7 is a diagram for explaining the operation of the first embodiment.

FIG. 8 is a diagram for explaining the operation of the first embodiment.

FIG. 9 is a diagram for explaining the operation of the first embodiment.

FIG. 10 is a diagram for explaining Embodiment 2 of the present invention.

FIG. 11 is a diagram for explaining Embodiment 3 of the present invention.

FIG. 12 is a diagram for explaining Embodiment 4 of the present invention.

[Explanation of symbols]

1. Base unit (TV). 1a, 5a, 74 Display.
2 Receiving antenna 3, 7, 10 Transmitting and receiving unit. 4 Table. 5 Slave unit (small display device). 6 Support base. 8 Speaker.
9,78,85 Remote control. 11 DVD player.
20, 71, 83 Parent machine. 20a, 21a, 22
a, 23a Screen display unit. 21, 22, 23, 77,
84 Slave unit. 31, 32, 33, 41, 42, 43,
51, 52, 53 wireless transmission / reception unit. 73 CPU.
75, 82 external storage device. 81 Home server (management computer)

 ──────────────────────────────────────────────────続 き Continued on the front page (31) Priority claim number Japanese Patent Application No. 9-319103 (32) Priority date Hei 9 (1997) November 4 (33) Priority claim country Japan (JP)

Claims (1)

[Claims] Claims: 1. Based on information taken from outside, such as information taken from an external communication network or information taken from an external recording device, which is used by being installed at a position relatively distant from a place where a user is located. Having a relatively large screen display for displaying images or characters,
Large and stationary parent device, used at or near the user, having a relatively small screen display unit for displaying characters or images, a small child device, and in cooperation with the display contents by the parent device or A parent-child cooperative display system comprising: a coordinating means for displaying interlocked contents in real time or almost real time on the screen display unit of the slave unit.