CN1264253A - Method and device for remote interactive with TV. system - Google Patents

Method and device for remote interactive with TV. system Download PDF

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Publication number
CN1264253A
CN1264253A CN99124761A CN99124761A CN1264253A CN 1264253 A CN1264253 A CN 1264253A CN 99124761 A CN99124761 A CN 99124761A CN 99124761 A CN99124761 A CN 99124761A CN 1264253 A CN1264253 A CN 1264253A
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CN
China
Prior art keywords
program
listing
television system
signal
coding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN99124761A
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Chinese (zh)
Inventor
W·J·特蕾西二世
J·M·瓦格纳
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International Business Machines Corp
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International Business Machines Corp
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Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CN1264253A publication Critical patent/CN1264253A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/422Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4135Peripherals receiving signals from specially adapted client devices external recorder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432Content retrieval operation from a local storage medium, e.g. hard-disk
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/482End-user interface for program selection
    • H04N21/4828End-user interface for program selection for searching program descriptors

Abstract

A portable program selection device (PSD) stores data regarding program scheduling downloadable to the device. The device includes a database and application program as well as an end-user interface for querying the database. The database contains parameters associated with television programs such as description, time, duration, genre, channel number and unique program code associated with each program, and is key word searchable. Upon the user selecting a program either by key word searching or viewing a program channel/time grid and activating a program, the selected program is stored in the program code transferred by IR link to the remote VCR and/or television. The VCR is then automatically programmed to record the selected program at its appropriate time or the television channel automatically changed when the program selection relates to a real time program, both in response to the received program code.

Description

Method and apparatus with a television system remote interaction
The present invention relates to consumer's television system, relate in particular to the system and method for selection of beholder's program and television program record.
Along with the appearance of consumer's TV dish, fiber optic cables, and other are day by day with the improvement of bigger bandwidth for transmission to family, and the TV viewer of family just is being subjected to the impact that optional TV programme quantity increases severely.Watch aspect this improvement that can utilize television content making, this sharp increase on the programme content quality and quantity makes this common practice of being recorded in order to watching later on by VCR of " out-of-date (timeshifting) " program become more important.This makes again provides a kind of method simple, that the consumer is friendly very difficult to the beholder, and the consumer can select in a kind of intelligentized and more advanced mode in a large amount of like this programme contents easily by this method, so that carrying out program selects, be provided with then, can make things convenient for some programs in these programs of timed recording optionally thus.
As for the prior art that is used for VCR Promgramming itself, its serious deficiency is very odd, and causing occurring can not the common so laughable situation of operation VCR.Yet, even supposing this problem can actually realize VCR is carried out the easier method of Promgramming, itself can not solve other serious problems that relate to present consumer's television set, be aforementioned problem aspect the goodish TV programme of selecting to be used to from the whole options that increase severely to record or watching, this is owing to the increase bandwidth that is transferred to family.
Take certain methods to solve in the past and helped the beholder to carry out the problem that program is selected.May modal method be the various programmes of hard copy TV guide (television guide) as occurring in " TV guide " or the local newspaper.This method has tangible limitation, and the limited capability of each program particulars both is not provided, and does not also have search capability.Also have, because some satellite systems have possessed nearly 1000 or more channel, so the clearly this method of TV programme programming information that provides can not satisfy modern needs.
A kind of trial that solves hard copy TV guide weakness just provides a kind of TV guide through cable, internet or satellite provider itself.This has the weakness of hard copy system, does not promptly have effective function of search.Like this, even when appearing at listing on the screen and use the programme of more traditional natural form, the consumer still is difficult to cross a large amount of such screens and sees programs of interest.This needs to cross uninterested many information of beholder and programme again.Also have, the hard copy of these forms or TV program guide are merely able to show the Promgramming on the same day, and this provides the supply system of abundant information owing to oriented user.
Selecting these problems that need watch data and user for solution can be easy to regard to time shift many companies that a kind of video clipping (clipping) service is provided basically for the user have been appearred in the foregoing problems that VCRs carries out Promgramming.Like this, the user can finish its interested layout catalogue (profile).This then company regularly records it to be thought and the corresponding to program of user's layout catalogue, for example, may be interested and meet the program of user interest, after this may send the user by programs of interest video tapes with these users.This method also has and serious and significant disadvantages, does not both carry out the function that program is selected by the third party, and obtains time lag and expensive price to these actual video tapes of user.
In addition, in the consumer market, sell various mechanisms to attempt simplifying the VCR Promgramming as " VCR+ ".One of these systems, rely on the infrared link device between cable tuning box and the VCR to search, so that the user can select a program the program guide from screen, to send VCR to from the IR signal of cable box by this screen program guide, carry out the VCR programming thus automatically with corresponding proprietary coding.Although this system is in use very exquisite,, it has program guide every day that program is selected in thousands of wait in any case all having aforesaid many shortcomings-be user still to be restricted to.Now a kind of correlation technique of other companies is used to provide the program code clerk relevant with given program, these given programs are actual to be printed in the program guide.Like this, end user/beholder can read the actual programs guide easily, and according to crossing the selection of interesting program, imports the proprietary code clerk relevant with this program by a remote channel transducer.Also have, this at first solves to simplify selects the needs of required programs from a big programme, and has other all tangible weakness (downsides) of relevant in actual hard copy programme to description.
Therefore, need a kind of consumer's television system especially, it can be convenient to realize that the end user carries out the ability of Promgramming to VCR with regard to time shift.Also have, be expected very much a kind of like this system, it can be efficiently and a kind of mechanism is provided at an easy rate, utilize this mechanism, the end user may select and record some programs better with a kind of advanced person more and detailed mode, and these programs can more accurately reflect the program of viewing and admiring requirement that more meets his (she) individual.
A kind of portable program selecting apparatus (PSD) stores about downloading to the data of the listing on this device.This device comprises a database and application program and the end user interface that is used for searching database.This database comprises the parameter relevant with TV programme, as explanation, time, duration, type, channel and the unique program coding relevant with each program, this database available keyword retrieval.Select a program and open this program by the keyword retrieval or the program channel/timetable of checking according to the user, selected program is stored in the mode of a program coding, and this program coding is transferred to remote control VCR and/or TV by the IR linked set.According to the program coding that is received, VCR carries out Promgramming automatically to record the automatic conversion when program is selected to relate to real time programme of selected program or television channel at its reasonable time then.
Fig. 1 is an advanced functionality block diagram, demonstrates each parts of the program selecting apparatus that system uses in Fig. 2.
Fig. 2 is a functional block diagram, demonstrate TV of the present invention apparent see in the establishment system each parts, comprise a program selecting apparatus shown in Fig. 1.
Fig. 3 is the flow chart that Fig. 1 system works is shown.
Fig. 1 illustrates the preferred embodiment of a computer system, and it can adopt the improved GUI control of the present invention protection system.This system comprises a CPU10, read-only memory (ROM) 11, random-access memory (ram) 12, I/O adapter 13, user interface adapter 18, communication adapter 14 and display adapter 19, and they all interconnect through common land location/data and control path or bus 16.Each has adopted the shared bus of those conventional arts well known to those of ordinary skill in the art with the upper-part visit, and comprises the method such as each parts in this system provide particular address range, and CPU10 is a Bus Master.As further shown in Figure 1, these peripheral hardwares such as DASD15 are by adapter such as I/O adapter 13 link to each other with a shared bus 16 separately.Other peripheral hardwares such as display 21 have adopted its adapter such as display adapter 19 separately similarly, to provide data flow between bus 16 and display 21 or other devices.Various user's interface devices are used to interconnect, and use with user interface adapter 18, and typical user input apparatus such as control lever 23, mouse 25, keyboard 17 and loud speaker and/or microphone 27 are housed on the user interface adapter 18 among the figure.This system also is equipped with a legacy operating system 29 that is suitable for carrying out one or more application programs 31.In these devices each all is well-known, therefore will no longer describe here.
The present invention can realize basically any department of computer science unify respective microprocessor such as RS/6000 (TM), based on the work station of RISC and carry out AIX (TM) respectively and the IBM Corporation's personal computer of OS/2 (TM) operating system or the similar machine of other computer distributors, these similar machine comprise 604PowerPC (TM) risc chip in for example a kind of RS/6000 work station.(RS/6000, IBM, AIX, 0S/2 and PowerPC are the trade marks of IBM Corporation).
What CPU10 was included in Fig. 1 generally is one or more microprocessors, and this microprocessor is carried out and is used for the necessary system address of correction chart 1 system operation, data and control and treatment function.Although the present invention can be used in the design of various microprocessors, here in the disclosed embodiments, the form of microprocessor is the PowerPC604 microprocessor that IBM Corporation produces, and this microprocessor is known a kind of microprocessor as Reduced Instruction Set Computer (RISC) microprocessor.About the more particulars of this microprocessor architecture and operation can be by PowerPC604 RISC Microprocessor Users Manual, Document #MPC604UM/AD, November, 1994, Copyright IBM Corporation obtains, and these data are incorporated herein with for referencial use.
In content of the present invention, the user will see various objects, and as the cursor on the display 21 and pop-up menu or drop-down menu, they can be operated by various pointing devices such as mouse 25 and acoustic control guider.By the relevant program coding of the device driver binding operation environment of pointing device 25 and microphone 27 and user interface adapter 18 with reside in application coding among RAM12 and/or the DASD15, be convenient to make the cursor movement on the indicator screen 21, this cursor movement in response to and be relevant to the respective voice of express giving microphone 27.
Referring to Fig. 2, the program selecting apparatus among Fig. 1 (PSD) is presented at reference number 42 places with simple form.Its form can be any hand-held device such as Palmpilot, Personal Digita1 Assistant (PDA) or the like basically.Under its general form, such program selecting apparatus comprises a small screen 43 that plays Fig. 1 display 39 functions.It also comprise application program 68, with the keyboard 70 of certain special form of 24 identical functions of Fig. 1 keyboard and the pointing device 72 that is similar to Fig. 1 pointing device 26.In addition, in order to be described later on, provide a hard disk drive 58 or an other forms of magnanimity read/writable memory device that is similar to Fig. 1 disk drive 20.
The function of PSD42 is that it can be used for intercoming mutually with internet 46.This is shown by the linked set 44 to the internet, the form of this linked set can be a telephone link, wherein PSD42 comprises function of cellular phone or a connector, and it can insert the telephone socket of a computer system modulator-demodulator with access the Internet 46 thus.On the other hand, PSD42 can be used for interrelating by linked set 48 and Internet service provider (ISP) 50, and this linked set also can adopt the form that is connected to the telephone link of the contacted computer system of ISP.These linked sets 44,48 and internet 46 or ISP50 purpose of connecting are, these links are some servers, they are storage vaults of television program layout data, these Promgramming data can download on the PSD42, preferably be stored in the stored data base 58, and can read thus by application program 68 with a kind of compressed format.
This data preferably include than available more detailed content in the TV program guide on conventional hard copy or screen at present, and the typical sampling that so enriches data is shown on the screen 60, but its each several part can be shown on beholder's reading screen 43 as desired.The data set of obtainable each program of beholder comprises for example more detailed explanation of program, that is, its date, time, duration, featured performer, type (comedy, drama, action play or the like), program place channel and with hereinafter with the relevant specific program code clerk of describing of program.
In addition, visible on the screen 43 is Promgramming lattice 64, and it is used to download to data every day of PSD42, comprises some square grids, each square with every day special time and channel relevant.Each grid square preferably includes the abbreviated header or the description of its related-program, and when pointing device 72 being used for the particular grid square and activating this square, the information that is shown in the screen 60 just is shown to the end user on the screen 43 of PSD42 thus.
When the beholder checks the program that information in the data set 60 and set point value must watch, available subsequently pointing device 72 of end user and cursor 62 activate a square such as square 61, determine VCR54 is carried out the requirement of Promgramming, perhaps determine when this program broadcasts just in real time making of the requirement of TV56 real time altering to this program.Being used for making VCR to carry out Promgramming later on influenced by the conventional I R linked set 52 between PSD42, VCR54 and the TV56 with the instruction of recording this program or make TV be transformed into this program at once.
One of the present invention the keyword retrieval ability that provides data set 60 is provided.Like this, by using the navigation of pointing device 72 on screen 43, the user can be by any keyword of keyboard 70 inputs, so that find the user's interest program.For example, if wanting to understand at the film whether John Wayne is arranged in certain week subsequently, the user broadcasts, the user can be by keyboard 70, pointing device 72 and screen 43 input keyword " John Wayne " and is wanted that week of understanding, can occur so be similar to a grid of grid 64, can demonstrate the movie program list that JohnWayne wherein occurs.
According to the particulars that program is described, the user also can propose complicated more many Word search strategy as " animals, Africa, science fiction ", so as in database 58 inquiry any with these three programs that keyword is relevant.The present invention is not intended to limit any specific search strategy, but any amount of data set and the querying method of permission state of the art comprise artificial intelligence, use end user's layout catalogue of being stored to carry out all or part of retrieval or the like.Can be readily appreciated that be the end user can import with data set 60 in the relevant keyword of any information.Therefore, for example, the end user can import as " comedy " and " film " and date or time type as keyword, if perhaps he or she only can watch TV in the hour in future, so Wei Lai hour and date just may be unique keyword inlets.Because the ability characteristics of this automatic editing program has adopted VCR54, so can also expect from the internet 46, the data set of ISP50 or the transmission of other remote linkage devices preferably includes the programme that expands to certain following period, this is different from programme on more general hard copy and the screen.Like this, if the user uses specific program code clerk broadcast items is relevant with future to select this program in order to carry out Promgramming, then VCR54 can be used for recording the program of those futures with broadcast.The user also can inquire about the program of having selected with PSD2, so that by wishing these options of editor.
Referring to Fig. 3, first-class journey figure shown in it, it is expressed as the operating procedure of Fig. 2 system that realizes the object of the invention.
Referring to this figure, at first, suppose the end user by being implemented in the telecommunication capabilities among the PSD42, make a linked set can visit (occur to) one suitable listing resource (this can be internet 46, ISP50 or other resources), show this step at square frame 80.
After this end user by with the cooperatively interacting of PSD42, by linked set 44,48 these Promgramming data are suitably downloaded to PSD42, this step is shown in the square frame 82 of Fig. 3.It should be understood that these data are preferably compressed format, the processing capacity of PSD42 this data that can be used for decompressing.
Subsequently, as the result of this download, PSD42 makes this Promgramming storage in memory 58, more particularly, is the database form storage that can inquire about with a kind of user.This step is shown in the square frame 84.Can expect that preferably the inquiry mechanism of database 58 can be user friendly and advanced as far as possible, so that find information by user's layout catalogue, keyword inlet or other data points.The present invention designs part especially, import layout catalogue data among the PSD42 by the user, can on a conventional basis, on linked set 44 or 48, find the Promgramming data automatically, regular update database 58, and on screen 43, be shown to the user, user's Promgramming standard of watching and/or recording after the program that is about to broadcast meets.
Continuation is referring to Fig. 3, in case these Promgramming data are stored at square frame 84 places, this process proceeds to square frame 86, so that inquiring user is wished the program that layout is later or wish to watch required program and/or editor in the past for recording the program of layout.In response to this, if the end user represents to wish to carry out Promgramming for recording later on, this processing procedure 88 withdraws from along the path so, and user's search criteria-this step that will adopt at the input of these Promgramming data is shown in square frame 92 thus.Except the user imported the keyword retrieval formula as required, user search also needed database 58 is inquired about, and the Promgramming data are resident by application program 68 in the database, and this thus Query Result is shown on the screen 43 and selects and processing in order to the user.
Shown in square frame 94, according to this inquiry and result demonstration, the user can select desirablely to be used to watch or recorded program (square frame 94) subsequently.If program has been selected for and has recorded, then this incident is stored in the memory 58 shown in the square frame 96, and the secret of this program is coded in square frame 98 and is transferred to VCR54 by IR linked set 52 thus, to be used for later recording.On the other hand, if program broadcasts, program coding will be transmitted in the system of Fig. 2 makes programme content generation real time altering on the TV56, and this process is illustrated in square frame 100.
Whether then, will inquire the user on screen 43 by this system of application program 68 operation, and need another to program or the selection watched, this step is shown in square frame 102.If do not need further reciprocation, this process exit path 106 arrives and finishes end 108.On the other hand, if user's reaction requires to select program in addition or watch by keyboard 70 or pointing device 72 expressions, system flow exit path 104 arrives square frame 86 so.At square frame 86, system subsequently once more inquiry whether need to carry out layout to being used for recorded program in addition, perhaps on the other hand, whether need to watch a program of selecting in real time or the layout of editor institute to be used for after the recorded program list.This process is proceeded as previously mentioned subsequently, if wherein the user represents the program of wishing that layout is other, so flow process along the path 88 left sides that fall back on square frame 86, be implemented as the later layout of other programs and other steps of carrying out.On the other hand, if according to the inquiry to square frame 86, the user represents to wish to select to want the recorded program list after the program watched in real time or the editor, and flow process 90 falls back on square frame 86 right sides along the path so.If the editing program list is wished in expression, point out at square frame 110 places so, will access and edit the programme of the selected listing that is used to record.On the other hand, if according to the inquiry at square frame 86 places, the beholder represents to select a current program of watching, and then square frame 112 places provide the program of a listing in order to select current broadcast to be used to watch.This process 114 withdraws from along the path then, thus this system subsequently again inquiry whether desirable other reciprocations of any end user are arranged.If no, this process falls back on the right side in path 106 to finishing end 108.
Be understandable that by above stated specification, under the situation that does not break away from essence of the present invention, can do various modifications and conversion in a preferred embodiment of the invention.This specification should be with a limited concept explanation just to playing illustrative purposes.Scope of the present invention is limited by the literal in the following claims only.

Claims (30)

1. one kind is carried out the method for remote interaction with television system, comprising:
One listing is downloaded to first device;
The described listing of navigation on described first device is so that select a program from described listing; With
Install to the signal of described television system transmission by described first corresponding to described program.
2. the process of claim 1 wherein that described navigation step comprises:
With the described listing of the corresponding keyword of described program on carry out keyword retrieval.
3. the method for claim 2, wherein said signal is the program identification signal corresponding to described program.
4. the method for claim 3, wherein said television system comprises a performance recording device; And
Described signal makes described performance recording device carry out Promgramming to record described program.
5. the method for claim 3, wherein said television system comprises a TV, and described signal makes described TV can select described program in real time.
6. the method for claim 5, wherein said listing comprises a plurality of program specifics.
7. the method for claim 6, wherein said listing covers many days arrangement of time of described program.
8. the method for claim 7, wherein said loading source is from the internet.
9. the method for claim 8, wherein said download is through a wireless link device between described first device and described internet.
10. the method for claim 9 also comprises:
Next signal corresponding of storage in described first device with described program.
11. a device that is used for the television system remote interaction comprises:
Be used for device to the first device program downloading table;
Be used at the described first device described listing of navigation so that from described listing, select the device of a program; With
Be used for to described television system from the device of the described first device transmission with the corresponding signal of described program.
12. the device of claim 11, the wherein said device that is used to navigate comprises:
Be used for the described listing of the corresponding keyword of described program on carry out keyword retrieval device.
13. the device of claim 12, wherein said signal are the program identification signals corresponding with described program.
14. the device of claim 13, wherein said television system comprise a performance recording device; And
Described signal is used in the described device of described performance recording device Promgramming can record described program.
15. the device of claim 13, wherein said television system comprises a TV, and described signal makes described TV can select described program in real time.
16. the device of claim 15, wherein said listing comprises a plurality of program specifics.
17. the device of claim 16, wherein said listing cover many days arrangement of time of described program.
18. the device of claim 17, wherein said download comes from the internet.
19. the device of claim 18, the wherein said device that is used to download comprise the wireless link device between described first device and the described internet.
20. the device of claim 19 also comprises:
Be used for device at the described first device storage next signal corresponding with described program.
21. the computer program products on the computer-usable medium that is used for the television system remote interaction comprises:
Be used for downloading the program code device of a listing to first device;
Be used on described first device, navigating described listing so that select the program code device of a program from described listing; With
Be used for from described first device to the program code device of described television system transmission with described program respective signal.
22. the program products of claim 21 coding, the wherein said program code device that is used to navigate comprises:
Be used for the described listing of the corresponding keyword of described program on carry out keyword retrieval the program code device.
23. the program products of claim 22 coding, wherein said signal is the program identification signal corresponding with described program.
24. the program products of claim 23 coding, wherein said television system comprises a performance recording device; And
Described signal is used in the described program code device of described performance recording device Promgramming can record described program.
25. the program products of claim 13 coding, wherein said television system comprises a TV, and described signal makes described TV can select described program in real time.
26. the program products of claim 25 coding, wherein said listing comprises a plurality of program specifics.
27. the program products of claim 26 coding, wherein said listing covers many days arrangement of time of described program.
28. the program products of claim 27 coding, wherein said download comes from the internet.
29. the program products of claim 28 coding, the wherein said program code device that is used to download comprise the wireless link device between described first device and the described internet.
30. the program products of claim 29 coding also comprises: be used for program code device at the described first device storage next signal corresponding with described program.
CN99124761A 1998-12-16 1999-12-09 Method and device for remote interactive with TV. system Pending CN1264253A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21333098A 1998-12-16 1998-12-16
US09/213,330 1998-12-16

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CN1264253A true CN1264253A (en) 2000-08-23

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JP (1) JP2000184352A (en)
KR (1) KR100342293B1 (en)
CN (1) CN1264253A (en)
MY (1) MY124396A (en)
SG (1) SG87860A1 (en)
TW (1) TW447222B (en)

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JP2000184352A (en) 2000-06-30

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