CN1205569C - Interactive data Transmission system - Google Patents

Interactive data Transmission system Download PDF

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Publication number
CN1205569C
CN1205569C CNB018123759A CN01812375A CN1205569C CN 1205569 C CN1205569 C CN 1205569C CN B018123759 A CNB018123759 A CN B018123759A CN 01812375 A CN01812375 A CN 01812375A CN 1205569 C CN1205569 C CN 1205569C
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CN
China
Prior art keywords
network equipment
audio
visual data
stream
server
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Expired - Lifetime
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CNB018123759A
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Chinese (zh)
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CN1451123A (en
Inventor
牟恒善
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LANVIC TECHNOLOGY CORP
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LANVIC TECHNOLOGY CORP
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Priority claimed from US09/699,108 external-priority patent/US7068596B1/en
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Publication of CN1451123A publication Critical patent/CN1451123A/en
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Publication of CN1205569C publication Critical patent/CN1205569C/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
    • H04N21/2146—Specialised server platform, e.g. server located in an airplane, hotel, hospital located in mass transportation means, e.g. aircraft, train or bus
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
    • G10H1/365—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems the accompaniment information being stored on a host computer and transmitted to a reproducing terminal by means of a network, e.g. public telephone lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
    • H04N21/2143—Specialised server platform, e.g. server located in an airplane, hotel, hospital located in a single building, e.g. hotel, hospital or museum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • H04N21/2225—Local VOD servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2543—Billing, e.g. for subscription services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management 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
    • H04N21/462—Content 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
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17336—Handling of requests in head-ends
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2240/00—Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/171—Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments
    • G10H2240/281—Protocol or standard connector for transmission of analog or digital data to or from an electrophonic musical instrument
    • G10H2240/295—Packet switched network, e.g. token ring
    • G10H2240/301—Ethernet, e.g. according to IEEE 802.3

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Software Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A method and apparatus for use in a network including a local server coupled to a central server, the local server being coupled to a plurality of network devices, for interactively controlling from one of the plurality of network devices a flow of audio visual data from the central server to the network device, comprising obtaining a control command at the network device, the control command indicating a desired modification to the flow of the audio visual data from the central server to the network device. The control command is sent from the network device to the central server via the local server. A modified flow of the audio visual data is then received from the central server at the network device in response to the control command.

Description

Interactive data Transmission system
Technical field
The present invention relates generally to that the real time data on network sends.More specifically, the present invention relates to respond the interactive mode change of the data that the real time data of the request of the network equipment on the automatic network sends and send on network.
Background technology
At the current popular entertainment selection in the society of amusement is to see a film.In fact, many film fans has possessed the perfect home entertainment system that is exclusively used in this purpose.But, seeing a film at home and the people that spends weekend for those decisions, they only can obtain limited selection.
Usually, be willing to be intended to the film fan that sees a film in the personal air in the own home and lease film from the audio-video rental stores of this locality.But this film taxi process is a time taking process, and this requires the filmgoer to go to the shop from his family, to obtain needed film.Certainly, even this film taxi process has so remarkable shortcoming, but because people can repeatedly watch film according to their wish, and their time-out, playback, F.F. optionally and restart this film, therefore this mode remains that many people are ready to adopt.
Consider and the conventional relevant this shortcoming of film taxi process that pay-per-use is a kind of feasible selection, particularly common like this especially to the guest provides the hotel of film Rental Service.By the selection of pay-per-use, can select a kind of film, and watch this film in family or hotel.But, select to have restriction to the film that the filmgoer provided by the CATV (cable television) supplier.In addition, pay-per-use method does not provide the advantage that VCR had of standard.Specifically, when the pay-per-use method was Once you begin play film, the user can not time-out, playback, F.F. or is restarted this film.In addition, available viewing time generally is set, and therefore can not be selected by the user.
Actual video-tape can also be used for various other purposes except watching film.For example, in Asian countries, Karaoke is a kind of popular entertainment way.The central control room that the common use of conventional Kara OK service is connected with a plurality of tins of song platforms operates.This pulpit comprises the machine that is associated with each tin song platform.Make required song band be played, and be sent to this tin song platform (for example, passing through concentric cable).When listening the Karaoke participator who sings the platform place to require specific Kara OK songs for one, suitable song band is by the actual machine that is connected with this tin song platform that is inserted into.The bent band of Karaoke is played and is sent to listening of being connected with this machine then and sings platform.
Existing karaoke mode is not satisfied in many aspects.Owing to need be used for the machine that can play the bent band of Karaoke of each tin song platform, therefore existing karaoke OK system needs a plurality of machines usually.Because this machine is not automatically, therefore need the people of this machine of operation.Because buy and the expense of safeguarding a plurality of Karaoke machines and relevant personnel, the running of conventional Kara OK service is expensive.In addition, generally need to keep the copy of popular how first song, so that satisfy when receiving the such situation of request with first song from a plurality of tins of song platforms.In addition, owing to usually need to keep a plurality of copies with alternative, the storage space of therefore safeguarding the expense of suitable inventory and depositing these copies increases the cost of this Kara OK service.In addition, because the bent band of Karaoke must manually be installed and be taken out by the people, this system is easily because people former thereby lead to errors.As a result, incorrect bent band may be installed, perhaps when personnel searching and the bent band of change, between two first songs, have tangible delay.Therefore, Karaoke participator time of can not forecasting institute selecting song to begin.Similarly, can not predict time delay between the two first songs that one after the other are installed in this Karaoke machine.And note having no idea to control and their machine of listening the song platform to be associated a karaoke person who listens the song platform.Therefore, in case the bent band of Karaoke is inserted into the participator that then plays Karaoka can not alternatively control them each Karaoke song.
Consider mentioned abovely, wishing has a kind of system that the interaction characteristic and the convenience relevant with VCR of VCR can unrestrictedly be provided.In addition, if can offer the user to the large-scale selection that can not obtain before VCR or the message rate subscriber then more useful.
Summary of the invention
The invention enables data to be sent to for example such customer equipment of set-top box from a server by network.This can finish by single home server and by for example a plurality of tiered servers from central server to this home server.For example, central server can be associated with a network address on the internet.In addition, in case start, data stream can be changed by the user and alternatively control.In addition, file can be loaded into a storer relevant with home server from central server.This loading handle can with combine and carry out by the data transmission (for example, passing through web browser) that the user started, perhaps performed by home server when desired file can be obtained by home server.In addition, can load file mutually independently with data transmission and processing.
According to one aspect of the invention, for example the such network equipment of set-top box can interactively control data stream from such second network equipment of for example server to first network equipment.Expression is received at first network equipment the control command of the required change of the data stream from second network equipment to first network equipment.First network equipment sends to second network equipment to a control command.When second network equipment received this control command, this second network equipment responded the data stream of this control command change from second network equipment to first network equipment.Then, the data stream of the change of first network equipment from second network equipment to first network.This processing can be carried out on a plurality of tiered servers except single home server similarly.
Change to data stream can realize by changing data stream in many ways.For example, change can comprise log-on data stream transmission, suspend data stream transmission, transmission is shifted to an earlier date the data source (for example, file and/or document location) that speed that single frame, change data send and change are sent out data.This change to the data stream between the network equipment can be started by for example such input equipment of mouse, keyboard or remote control equipment by the user.
According to another aspect of the present invention, the user can select one or more files to the such miscellaneous equipment of for example set-top box from the such network equipment of for example server, will be sent by network from the data of this document.Each file can comprise video data and voice data and other numerical data.For example, each file can comprise film or Karaoke video recording.The user can select the one or more files relevant with this server by set-top box.In addition, the user can specify the order of transmission of selected file.Then, the information of representing the order of transmission of selected file and appointment is sent to server from set-top box.Then, the data that are stored in these files are sent to set-top box according to order of transmission from this server.
According to another aspect of the present invention, the invention enables the transmission of data in the such many location system in for example hotel, to charge.More specifically, play a film or Kara OK songs (that is, sending from home server) time can charge to the guest each.In addition, when desired selection by when central server sends to guest's room by the internet (for example, when user during) by web browser visit central server, the hotel may wish the guest is imposed extra-pay.Certainly, preferably, make the guest repeatedly watch the film of this selection only to guest's receipts expense (for example, when associated documents are loaded on the home server from central server) once.
Description of drawings
From description taken together with the accompanying drawings hereinafter, other advantage of the present invention will be better understood, wherein:
Fig. 1 illustrates the block scheme that can realize a kind of exemplary system of the present invention according to one embodiment of the invention.
Fig. 2 is the block scheme that the layout that can be used to realize signal set-top box plate of the present invention is shown.
Fig. 3 A is illustrated in to start the signal screen that presents to the user afterwards.
Fig. 3 B is the signal screen that the selection of the Kara OK songs that will be sent out according to the present invention and/or film is shown.
Fig. 4 is for being used to realize the diagrammatic layout of telepilot of the present invention.
Fig. 5 illustrates the processing flow chart of playing the method for film or Karaoke selection according to one embodiment of the invention.
Fig. 6 illustrates the processing flow chart of the method for the phonetic entry of process user according to an embodiment of the invention.
Fig. 7 is the processing flow chart that the method for suspending film or Karaoke selection according to one embodiment of present invention is shown.
Fig. 8 illustrates the processing flow chart that sends a kind of method of data frame by frame according to an embodiment of the invention.
Fig. 9 is a kind of method processing flow chart that the speed of the data that reduce to send to set-top box according to an embodiment of the invention is shown.
Figure 10 illustrates the processing flow chart that starts or restart the method for data transmission according to one embodiment of the invention.
Figure 11 illustrates the processing flow chart of selecting the method for the data file that will be sent out according to one embodiment of the invention by menu.
Figure 12 illustrates according to one embodiment of the invention to start the processing flow chart that the data relevant with next selecteed film send.
Figure 13 illustrates the processing flow chart of carrying out search according to one embodiment of the invention.
Figure 14 illustrates according to the processing flow chart of one embodiment of the invention by the data processing method that set-top box received.
Embodiment
In the following description, provide a plurality of details to provide to complete description of the present invention.But obviously those skilled in the art can realize the present invention, and also needs some or all of these details.In other example, do not describe some known treatment steps in detail, to avoid unnecessarily obscuring the present invention.
Along with the latest developments of digital technology, the mode of information flow and exchanges data has had new development.By utilizing video compress and decompression technique, can between city, province and country, send digitized Voice ﹠ Video data in real time.In addition, make the network bandwidth constantly increase by the modification (xDSL) of Fast Ethernet, coaxial cable modem, Digital Subscriber Line, DSL and the introducing of gigabit (Gigabit) Ethernet.DSL service can realize up to 6.1 megabits (megabit) message transmission rate, transmitting moving video, audio frequency even 3D effect continuously.Correspondingly, need the real-time video transmission of high bandwidth to become possibility now.
The application of the invention, for example film and the such file of Karaoke video can be downloaded to home server, and are sent to one or more customer equipments (for example, set-top box) by stream.In addition, the Interactive control of flow data can realize by set-top box.Correspondingly, the invention provides the advantage of conventional video recorder, and do not have the limitation or the restriction of video recorder.
Fig. 1 illustrates the block scheme that can realize a kind of exemplary system of the present invention according to one embodiment of the invention.The present invention realizes that wherein this LAN (Local Area Network) further is connected to for example such wide area network (WAN) in internet in the such network of for example Local Area Network.In this network, one or more home servers 102 are used as the video flowing server.In addition, this home server 102 can also be used as the content storage server that can store a plurality of files.One or more associated with servers 104 are used for the related service of user account management, Content Management, charge information, the webserver, fire wall and all other non-streams.In addition, Deng Jia central file server can be based upon and monitor the middle position that can believe with all telefile servers.In order to reduce the number of files that cost relevant with home server 102 and restriction can be used for sending to each client, preferably use a suitable storer, be used to store about 20 files (for example, Karaoke file or film file).But this structure only is schematically, and can adopt and have more jumbo storer.These files can be provided at first, and other downloaded on network and the internet.This home server 102 (for example is suitable for, by Ethernet switch 106) (for example be connected to a plurality of equipment 108, set-top box), this equipment is constituted as control command is sent to home server 102, arrives the data stream relevant with specific file of this requesting service 108 with control.In addition, when from home server 102 signals, each equipment 108 can be provided to relevant monitor or television machine 110 to video and audio signal.
By each equipment 108, client computer can start the data relevant with specific file by home server 102 and send.In addition, in case log-on data sends, this preferably can interactively control sends from the data of home server 102.When requested file can not be obtained by home server 102, this home server can pass through ISP (ISP) 114 by internet access central server 112.Central server 112 preferably has the data storage of the heap file in a relational storage.In addition, the client computer transmission that can be independent of related data is downloaded the file of being asked to this client computer by web browser from central server 112.For example, when the user will watch the film that can not obtain on home server, the user can visit central server, and selected in a plurality of films of listing one by clicking required title.Central server 112 can send to home server 102 to this document then, is used for storing and/or sending at file server 104 client computer of a request.Note that each customer equipment 108 and home server 102 are preferably in to set up carries out authentication before the communication link.
When a file by when central server 112 sends to client computer by home server 102, the transmission of the data that send and mutual control can be carried out according to a kind of mode, play to carry out real-time streaming, therefore can be by these data of client computer zero access of request.In addition, according to the transmission medium that is used, have little or sizable delay.For example, be used for sending data to home server 102, and the transmission medium from home server 102 to each equipment 108 can comprise that for example coaxial cable modem connects so conventional transmission medium from central server 112.In WAN is provided with, can not guarantee to support the bandwidth of the suitable speed of real-time broadband video flowing.Therefore, the advantage of the home server 102 in LAN is provided with provides enough bandwidth, to guarantee unbroken live video stream.
Conventional telephone service sends the simulating signal that is converted to numerical information by modulator-demodular unit.But the maximum data that can use common modulator-demodular unit to receive are approximately 56Kbps at present.On the contrary, utilize various xDSL technology, can receive rate receiving data, can send sport video, audio frequency and 3D effect continuously above megabit per second (Mbps).For example, current ADSL standard expectation Data Receiving speed is the magnitude of 6Mbps.VDSL desired data receiving velocity is 25 or the magnitude of 50Mbps.Therefore, related delay can minimize by the DSL (xDSL) that uses digital subscriber line or DSL or modification in the transmission of requested date.As a result, video signal quality is improved.In addition, because a plurality of equipment 108 can be connected to central server 112 through home server 102 by the individual digit subscriber's line, so each client computer does not need to obtain independently the DSL service.In this manner, client's expense is reduced greatly, and make that the client can be by almost the visit side by side and interactively control data sends of central server 112.
The present invention can be used by the such unit in for example hotel, so that the home server that the visit of a plurality of room is safeguarded by the hotel.Because this home server safeguarded by this hotel, so this hotel can wish that when each broadcast film or Kara OK songs (, send to customer equipment 108 from home server 102) charges to the guest.In addition, when requested selection (for example, when user during by web browser visit central server) when central server sends to guest's room by the internet, the hotel may wish the guest is imposed extra-pay.Certainly, preferably the guest is received once expense (for example, when associated documents by when central server is loaded into home server), and make the guest repeatedly watch the film of this selection.
Charge information can obtain by variety of way.For example, relevant with room charge information can obtain automatically.As another example, for example the such charge information of credit card information can obtain from the user after the user selects a film.As another example, intellignet card fetch can be provided to make that the user is recorded in the housekeeping service expense in his smart card.
Described referring to Fig. 1 as mentioned, a plurality of customer equipments 108 can be connected to single home server 102.According to one embodiment of the invention, customer equipment 108 can be realized with the mode of set-top box.Set-top box is can make televisor become the user interface that leads to the internet and make televisor receive the decode the equipment of digital television broadcasting.More specifically, set-top box by televiewer's use with by the simulated television receiving digital broadcast.Set-top box generally comprises the web browser in the storer that is stored in set-top box, makes TV user visit this internet.In addition, general top box of digital machine comprises one or more microprocessors, is used to move this operating system and is used to analyze a mpeg transport stream.A set-top box also comprises RAM, mpeg decoder chip and is used for audio decoder and other chip of processing.In addition, set-top box can comprise be used to store the television broadcasting of being write down, be used for the hard disk drive that downloads and be used for other application program.Similarly, the DVD driver can be used to make set-top box to visit various files.
Fig. 2 is the block scheme that the layout that can be used to realize signal set-top box plate of the present invention is shown.In one embodiment, the Ethernet of the firm and hard existing standard of set-top box is used, therefore the SRAM208,210 that comprises a 10BaseT interface 202, ethernet controller 204, is used to store the EEPROM206 of the IP address relevant and is used for storing the data that obtained from network (for example, internet) with the set-top box plate.In addition, this set-top box comprises the CPU212 that is used for the operation system and is used for the analysis of MPEG data stream.In addition, a quick EPROM214 can store and be used for driver and realize other instruction software required for the present invention.In addition, whenever be programmed into the client software of EPROM214 can upgrading by local service of being used for that characteristic strengthens.System storage 216 (for example, DRAM) can be used by CPU.In addition, EPLD218 is applicable to route signal between parts, thereby is provided for the suitable combinational logic circuit of set-top box.Mpeg decoder 220 is provided for being decompressed by video in the packed data that set-top box received and voice data.Dram chip 222,224,226,228 and 230 is provided for the used video data of store M PEG demoder 220.
After video and voice data were decompressed by mpeg decoder 220, the Voice ﹠ Video signal of decompression was processed separately.The vision signal of this decompression sends to video encoder 242 from mpeg decoder 220 then, so that this digital video signal is converted to simulating signal.This analog video signal is output at video input/output end port 244 then.Sound signal after the decompression is sent to digital to analog converter 236 from mpeg decoder 220, and by three-dimensional sound output port 238 outputs, thereby by the amplifier (not shown).
According to an embodiment, set-top box comprises Kara OK function.Therefore, except the data that receive from network (for example, the Karaoke file), one or more microphone input ends 231 and 232 are provided, so that the user is accompanied by the Karaoke selected songs and sings.In an illustrated embodiment, provide two microphone inputs, still should know to provide any requisite number purpose microphone.When karaoke person microphone was sung, sound signal was handled by analog to digital converter 233.Then, this digital audio and video signals is sent to Karaoke audio process 234.For example, Karaoke audio process 234 can be from being positioned at California, USA, the Mountain View city, and a kind of model that the Medianix semiconductor company that No. the 94041st, the 100View street is obtained is the numeral Karaoke audio process of MED25102.Be sent to digital to analog converter 236 then by Karaoke processor 234 handled digital audio and video signals, and by stereo output terminal 238 outputs.In addition, dram chip 240 can be used to store the used voice data of Karaoke processor 234.The audio input end 246 of standard also is provided.In addition, can provide an infrared interface controller (not shown), so that communicate with remote control equipment.
According to an embodiment, set-top box can be switched between general and compatible NTSC in the whole world and PAL signal.In addition, in order to realize karaoke OK system, can provide the user interface of different language by set-top box.Similarly, the file of encoding with multilingual sound channel can be provided on the home server, makes it possible to select in set-top box the sound channel of language-specific.
The signal screen of Fig. 3 A for after starting, presenting to the user.As shown in the figure, an initial screen 302 is shown, and its expression can be by one or more selections that the user imported.For example, when starting, can show the selection type 304 of an acquiescence to the user.More specifically, the selection type 304 of the file that be sent out for example can be " Karaoke " or " film ".Therefore, the selection type 304 of acquiescence may be " Karaoke ", as shown in the figure.In addition, the user can indicate the particular options 306 relevant with selecting type 304.As shown in the figure, numeral, title or other mechanism can be used to represent each option.
Fig. 3 B is the signal screen that the selection of the Kara OK songs that will be sent out according to the present invention and/or film is shown.In case when the user had imported one or more option, TV screen after Total Options are transfused to or monitor 308 were shown.Therefore, selecting type can be " film " or " Karaoke ", as shown in the figure.In addition, the set of selecting in advance according to the obtainable option of user can digitally identify each option 312.For example, can provide a handbook, point out the obtainable option of user to the user.
As indicated above, the user sends to set-top box to control command, represents required change to data stream to set-top box.According to an embodiment, these control commands are sent to set-top box by an Infrared remote controller.Fig. 4 is for being used to realize the diagrammatic layout of telepilot of the present invention.A TV/VIDEO button 402 makes the user to switch between TV and video mode.In addition, NEXT button 404 stops current video (for example, film or Karaoke), and begins next selected vision signal.ENTER button 406 makes the user import a plurality of button inputs.In addition, NTSC/PAL button 408 makes the user switch between NTSC and PAL pattern, and is as indicated above.RESET button 410 restarts set-top box.VIEW/MENU button 412 makes the user watch video image after all Karaokes of input and movie options.In video display process, when VIEW/MENU is switched according to 412, show a menu screen, make the user to add or the editing video option.Then, the user can be switched VIEW/MENU button 412 once more, to begin to play current the Video Option.Numerical key 0-9 413-430 can be used to indicate video title.Arrow key 432-438 makes the cursor up down move left and right, so that user's input and change option.
Various operating keys are provided the data stream that the user starts or change the arrival set-top box.When PLAY button 440 is pressed, be with the selected video of normal speed forward (for example, film or Karaoke option) from PAUSE (time-out), STEP (frame by frame) or SLOW (at a slow speed) mode switch, below all these situations will be described in further detail.In addition, according to an embodiment, current video playback designator is displayed on the screen amount with the remaining video information of indicating to be sent out.When pressing SLOW button 42, video speed slow down (for example, become normal speed half).Can press PLAY button 440 then, to return to normal speed again.Similarly, when pressing PAUSE button 444, suspend video playback, till PLAY button 440, SLOW button 442 or STEP button 446 are pressed.In case STEP button 446 is pressed, then each preceding forward one frame ground displaying video image.
Except watching the whole video image, the user may wish only to watch the specific part of this video image.When in video display process, pressing SEEK button 448, the number percent that the user can select this video file to jump to.Then, this video image jumps to this position, and begins to play from this position.Searching position can be any position in video file.Correspondingly, this function of search of operation on forward or backwards.
Except above-mentioned video control button, also provide Karaoke control button, so that the user can change and the relevant sound signal of music and/or user speech of playing Karaoka.Keypress function can be realized by using the such routine Karaoke audio process of Karaoke audio process MED25102 that for example obtains from Medianix company.Various buttons are provided on the telepilot, with the various functions that realize obtaining in the Karaoke processor.For example, KEY-450 reduces the keynote of music, KEY+452 increases the keynote of music, KEY N 454 turns back to intermediateness to the keynote of music, VOL+456 increases the volume of microphone, VOL-458 reduces the volume of microphone, and ECHO+460 increases the echo of microphone, and ECHO-462 reduces the echo of microphone.When the FADER464 button was pressed, the part of singing of music became quiet.PITCH466 transfers the tone that changes the karaoke person sound that receives by microphone by tone is reduced by half.HARMONY468 increases pitch shift and non-pitch skew microphone signal, to produce two singers' sound.It is quiet that MUTE470 becomes relevant microphone.
Described with reference to Fig. 4 as mentioned, telepilot can make the user that data stream is become and give set-top box.But, can use other input equipment.For example, each input equipment includes but not limited to keyboard or mouse.
The application of the invention, data can send to a request network equipment from particular network equipment.According to an embodiment, data are sent to a set-top box from home server.Certainly, when specific file was not directly visited by home server, this document can be downloaded (for example, arriving the file server relevant with home server) from a central server.In addition, data can send by home server from central server.When file can not directly be visited by home server, can start (for example, passing through web browser) by the user or start from central downloaded and/or send to home server by home server.In case the data stream relevant with file is activated, and then can send (for example, passing through Infrared remote controller) various control commands by the user and change data stream.According to an embodiment, can be by the data stream of user's change from home server.Below will be with further reference to of the change of Fig. 5 to Figure 14 detailed description from the data stream and the data stream of home server.But, should know the change that can also carry out flowing of data and data stream by central server.
Fig. 5 illustrates the processing flow chart of playing the method for film or Karaoke selection according to one embodiment of the invention.When square frame 502 is opened set-top box, show a menu at square frame 504.For example, the screen shown in Fig. 3 A can be shown, so that the user imports one or more Karaokes or movie options, shown in Fig. 3 B.At square frame 506, the user imports one or more options, will be sent to this set-top box to represent these films, clamping OK option or other video file.Then, at square frame 508, the user selects a control command, to start, to finish or be changed to the data stream of set-top box.Therefore, this control command ordinary representation is to the required change of the data stream of arrival set-top box.More specifically, this can realize by a button of pressing on the telepilot, and is for example described with reference to Fig. 4.For example, the user can select the VIEW order, to watch selected video image.
When square frame 510 receives this control command (for example, watching order) by this set-top box, at square frame 512, set-top box is decoded to this infrared control signal, and this control command is sent to the CPU of set-top box.Then, at square frame 514, set-top box sends to home server to control command.At square frame 516, home server receives this control command.In addition, home server can receive the signal that the expression current video is selected.Then, at square frame 518, home server sends to set-top box to compressed data stream by network.More specifically, the data stream of compression can comprise audio frequency, video and other numerical data.Then, at square frame 520, this set-top box processes is from data that home server received.Further describe a kind of method below with reference to Figure 14 by the set-top box processes data.
According to an embodiment, the user can start and change the transmission that arrives the karaoke data of set-top box from a server.Therefore, from server reception and processed, it is described to see below Figure 14 by set-top box for first sound signal.In addition, the user can be accompanied by the Karaoke selected songs by microphone and sing, and produces second sound signal.Fig. 6 illustrates the processing flow chart of the method for the phonetic entry of process user according to an embodiment of the invention.More specifically, at square frame 600, when the user sang by the microphone that is connected to set-top box, at square frame 602, this sound signal was handled by an analog to digital converter.In addition, shown in square frame 604, the user can be by selecting an audio frequency control command with reference to the described Karaoke control of Fig. 4 button as mentioned, to change by the final sound signal that is produced of set-top box.For example, the user may wish to regulate volume or tone.Then, at square frame 606, chanteur's the sound processor of being played Karaoka is handled, to change second sound signal.At square frame 608, second sound signal of this change is sent to digital to analog converter then.Then, at square frame 610, the simulated audio signal that is obtained is sent to amplifier.
Data stream to set-top box can change in various manners.Described with reference to Fig. 4 as mentioned, this data stream can change with multiple mode.For example, the user may wish to suspend video playback, perhaps presses for example such remote keying of STEP, SLOW, PLAY, MENU, NEXT or SEEK.
With reference to Fig. 7 to Figure 13 the processing flow chart that illustrates this possible change of the data stream that arrives set-top box is described in further detail below.
When the user wished to suspend the data transmission that arrives set-top box, the user may press the PAUSE button on telepilot.Fig. 7 is the processing flow chart that the method for suspending film or Karaoke selection according to an embodiment of the invention is shown.As shown in the figure, when the user when square frame 702 selects one to suspend control command, at square frame 704, this infrared control signal of set top box decodes.Then, at square frame 706, this stops the CPU that control command is sent to set-top box.At square frame 708, this set-top box sends to home server suspending control command.Correspondingly, shown in Figure 71 0, home server stops data being sent to set-top box, till obtaining further indication.
When the user wished that frame by frame is carried out data transmissions (for example, using single frame), the user can press the STEP button.Fig. 8 illustrates the processing flow chart that sends a kind of method of data frame by frame according to an embodiment of the invention.Shown in square frame 802, the user can select control command frame by frame by the STEP button of pressing on the telepilot.When receiving this infrared signal by set-top box, at square frame 804, set-top box is decoded to this infrared signal, and control command is frame by frame sent to the CPU of set-top box at square frame 806.Then, at square frame 808, set-top box (for example, CPU) this frame by frame control command send to home server.At square frame 810, correspondingly, this home server sends to set-top box by the handle data relevant with this frame, and this suitable video image frame by frame is play.Then, at square frame 812, set-top box processes is from the data that home server received, and this will describe in further detail with reference to Figure 14 hereinafter.
The user may wish to change the speed that data is sent to set-top box by network similarly.For example, the user may wish to reduce or increase the speed that data send.Fig. 9 is a kind of method processing flow chart that the speed of the data that reduce to send to set-top box according to an embodiment of the invention is shown.When the user wished to reduce the speed of data transmission, shown in square frame 902, the user can press the SLOW button on the telepilot, and was described with reference to Figure 14 as mentioned.Set-top box is decoded in 904 pairs of these infrared control signal of square frame, and sends to the CPU of set-top box in the control command that slows down that square frame 906 sends the data of indicating to slow down.Then, at square frame 908, set-top box sends to home server to the control command that slows down.Respond this control command, at square frame 910, home server reduces the speed that data (for example, frame) send to set-top box.Then, at square frame 912, home server continues the data of compression are sent to set-top box by network.Then, at square frame 914, set-top box processes is from the data that home server received, and this will describe in further detail with reference to Figure 14 hereinafter.
The user also may wish to start by the data transmission (for example, from park mode start) of network to set-top box.In addition, the user may wish from frame by frame or the pattern that slows down data sent return to normal speed.Figure 10 illustrates the processing flow chart that starts or restart the method for data transmission according to one embodiment of the invention.Shown in square frame 1002, the user can select the Play Control order at square frame 1002.This can realize by the PLAY button of pressing on telepilot, as shown in Figure 4.For example, PLAY can suspend, be pressed frame by frame or in the pattern that slows down.Then, set-top box is in these infrared control signal of square frame 1004 decoding, and sends to the CPU of set-top box to expression in the Play Control order that square frame 1006 requires log-on data to send.Then, at square frame 1008, set-top box sends to home server to this Play Control order.Then, at square frame 1010, the home server log-on data sends.More specifically, home server can log-on data sends, and perhaps the speed that simply data is sent to set-top box turns back to normal speed.At square frame 1012, home server continues by network the data of compression to be sent to set-top box.In addition, according to an embodiment, home server sends a percentage (for example, passing through the number percent of the film of netcast) of the number percent of representing that file has been sent out.At square frame 1014, set-top box processes it from the data that home server receives, this will more specifically describe with reference to Figure 14 hereinafter.At square frame 1016, the further demonstration of set-top box has been sent to set-top box and the number percent of the option play to the user.As indicated above, these data can be associated with any file, for example film or Karaoke option.
The user may wish the option by the former input of the screen shown in for example Fig. 3 A and Fig. 3 B.In this manner, the user can specify the order of transmission of one or more files by set-top box.This document can be polytype, for example stores the type of film or Karaoke video image.Should be noted that this selecteed file is not stored locally on the set-top box, but expression is stored in the file in the remote server that links to each other on the network.
Figure 11 illustrates the processing flow chart of selecting the method for the data file that will be sent out according to one embodiment of the invention by menu.As shown in the figure, the user can select a menu control order at square frame 1102, and its infrared signal sends to set-top box.This set-top box is decoded in 1104 pairs of these infrared control signal of square frame, and this menu control order is sent to the CPU of set-top box at square frame 1106.At square frame 1108, this set-top box sends to home server to this menu control order by network.Then, at square frame 1110, home server stops by network packed data being sent to set-top box.For example, home server can stop to send data, till the VIEW/MENU button that is switched in by the user on the telepilot shown in Fig. 4.
Then, set-top box shows the menu of an option at square frame 1112.As an example, this menu can show a plurality of possible file (for example, film or Karaoke) that is sent to set-top box to the user.As another example, this menu may only be the screen shown in Figure 13 for example, and it can make the user import and change his option, as shown in Fig. 3 B.When showing this menu, the user can add and edit the menu option that shows at square frame 1114.As an example, the user can show the screen that the single option of importing in the past is shown.Then, the user can import or select to reach other option of maximum licensed option number.As another example, menu can be by user-selected a plurality of options before the user shows.The user can change the one or more options in these options then.
When one or more option is watched in user's decision, select this to watch control command by switching the VIEW/MENU button once more at square frame 1116.At square frame 1118, set-top box is decoded to this infrared control signal, and watches control command to send to the CPU of set-top box on 1120 on square frame.At square frame 1122, this set-top box watches control command to send to home server by the network handle.For example, this watches control command can discern one or more files that will send by network.In addition, this watches control command can also represent the order of transmission of these files.Certainly, the packed data starting point of watching control command also to specify to be sent out.This starting point can be represented a specific file, and the position (for example, number percent) in this document.Then, at square frame 1124, home server restarts by network packed data to be sent to set-top box.Then, at square frame 1126, its data of being received of set-top box processes, this will describe in further detail with reference to Figure 14 hereinafter.
Except making Total Options are play continuously, the user may wish to finish current video playback and begin next selected video image.Figure 12 illustrates according to one embodiment of the invention to start the processing flow chart that the data relevant with next selecteed film send.When the user wished to stop the data transmission relevant with first video image and begins the data transmission relevant with second video image, the user can select next control command by press the NEXT button on telepilot at square frame 1202.At square frame 1204, this infrared control signal of set top box decodes.Then, at square frame 1206, represent that the next control command of next video image is sent to the CPU of set-top box.Shown in square frame 1208, set-top box sends to home server to next control command, represents that next video image is selected.For example, next control command can be represented the video image of current selection directly or indirectly.At square frame 1210, this home server stops to send to set-top box by the network handle with the packed data that the choosing picture is relevant the preceding.Then, at square frame 1212, home server sends to set-top box by the network handle packed data relevant with current selection.Then, at square frame 1214, set-top box processes it from data that home server received.To a kind of method of handling institute's packed data be described with further reference to Figure 14 below.
When the user wished that ad-hoc location data since a file send, the user can press the SEEK button on the telepilot, for example shown in Fig. 4.Figure 13 illustrates the processing flow chart of carrying out search according to one embodiment of the invention.Shown in square frame 1302, the user can select the Search Control order by the SEEK button of pressing telepilot in the step of square frame 1302.In addition, at square frame 1304, user's indication required data in this video file send the position.According to an embodiment, the number percent of the video file that user's selection has been sent out.At square frame 1306, this infrared control signal of set top box decodes, and, represent that the corresponding Search Control order of required number percent is sent to the CPU of set-top box at square frame 1308.
According to an embodiment, calculate the starting point that in this document, will send data by set-top box.More specifically, when initial selection this document, home server sends to set-top box to the such information associated with the file of for example file size.For example, when sending mpeg file, fileinfo is sent in the initial data packets that is sent.At square frame 1310, set-top box use this document size and percentage are recently determined the starting point in this document.Then, at square frame 1312, set-top box sends to home server to the designator of the required document location of expression.
In addition, can calculate this starting point by home server.According to this embodiment, at square frame 1310, set-top box sends to home server to the Search Control order of the required number percent of expression by network.When home server received this Search Control order, at square frame 1312, home server use this document size and percentage were recently determined the starting point in this document.
At square frame 1314, home server " jumps to " starting point in this document then, and at square frame 1316, by network packed data is sent to set-top box from this starting point.Then, at square frame 1318, this set-top box processes it from the data that home server received, this will describe in further detail with reference to Figure 14 hereinafter.
As indicated above, when set-top box receives the packed data that is sent by network, these data of this set-top box processes.Figure 14 illustrates according to the processing flow chart of one embodiment of the invention by the data processing method that set-top box received.Cause set-top box in institute's compressed video data to be sent to the client computer (for example, set-top box) of a request by the various command that set-top box sent.When client computer sends to server to a request, when asking this server that compressed video data is sent to this client computer, this server is divided into a plurality of packets to relevant compressed video data file (perhaps its part), and this packet is sent to client computer.Shown in square frame 1402, set-top box receives the video data of compression from home server.At 1404, one mpeg decoders of square frame video and voice data in institute's packed data are decompressed then.Then, the vision signal of decompression is sent to video encoder, at square frame 1406 this digital signal is converted to simulating signal.At square frame 1408, the simulating signal that is obtained is output to TV or monitor then.Can be stored so that use in the future by the data that set-top box received.But, be preferably in set-top box and these data are offered delete this data after the user.In this manner, display video image on TV screen in real time.
Except decompressed video data, can also be by the voice data of set-top box processes decompression.More specifically, according to Karaoke embodiment, in square frame 1412, the sound signal of decompression is sent to digital to analog converter.Then, in square frame 1414, the simulated audio signal that is obtained is sent to an amplifier.
When data by when central server sends to set-top box by home server, home server can be stored copy of these data (for example, storing) in the associated documents server.In addition, can also after being sent to the set-top box of request, these data delete this copy.
The present invention can be used for various environment.For example, said system can be configured to the karaoke OK system of a networking, makes a plurality of rooms visit Kara OK songs simultaneously, and does not need staff's participation.The present invention can also be used to provide a kind of cost-efficient solution that has, film is passed to the guest at hotel.In addition, it can also be to be used for hospital, makes that the patient on the sick bed watches film or surfing on the internet.School can also use the present invention in the campus area net, to send lecture or other demonstration of video recording.In addition, in aircraft, steamer, train or automobile on restricted seat the passenger of long-distance travel be subjected to the fatigue of journey.Therefore, the present invention can make each passenger watch and control their interested film in whole journey process.Can also in an apartment, adopt the present invention, so that native system and system cost are shared and shared by each housing unit.In addition, the present invention can be used as the TV booth that is used to provide information, catalogue or advertising goal in airport, railway station, hotel hall, department store, convenience store or the museum.
A worldwide data network has been created in the appearance of internet.Along with the steady growth of Internet service, the bandwidth of data high-speed highway correspondingly increases.This provides very big chance to making the user by the private communication facility that data network communicates the new class of (for example, by the Voice ﹠ Video data).This message exchange is from evolving based on literal to based on image, enriching its content, can provide a large amount of services based on the communication of video image.Correspondingly, the present invention can be used for equipment or web browser, provides the service of interactive, real-time and high bandwidth to the user to use the internet.
As indicated above, for example the invention enables, the such customer equipment of set-top box receives the such data stream of transmitting from video server on the internet of for example video flowing.In addition, in the process of carrying out the said method step, set-top box can output to network to information.This information can adopt the form of the computer data signal that embodies in a carrier wave to receive and output to network from network.This network can also be a wireless network.
The application of the invention, video, audio frequency and Kara OK function integrated in individual system can be connected on the TV of standard.Because the present invention is applied in the set-top box, it is compact and portable.In addition, owing to do not need computing machine, therefore concerning the client, can realize the present invention originally with quite low one-tenth.
Although above illustrated and described embodiments of the invention and application, but within thought of the present invention, scope and spirit, many modification and change can be arranged, after reading present specification, those of ordinary skill in the art will expect these modification and change easily.For example, the present invention is described as be under the situation of DTV receiver and sends data from home server.But the present invention can be used in other situation, for example sends data from other server (for example, central server) by local service.For example, the present invention can allow to visit central server on the internet.Similarly, the present invention can realize by a plurality of tiered servers, makes that information is sent on the internet.In addition, above-mentioned processing square frame only is used for explanation.Therefore the present invention can use the processing square frame of replacement and other data structure to realize.Correspondingly, present embodiment is considered to illustrative and non-limiting, and the invention is not restricted in this given detail, but can be changed in the scope of claims and statement of equal value.

Claims (107)

1. method, be used in the interactive TV networks that comprises first network equipment and second network equipment from the stream of audio-visual data of first network equipment interactively control from second network equipment to first network equipment, be used to output to TV, this method comprises:
Obtain a control command at first network equipment, this control command is represented the required change for the stream of audio-visual data from second network equipment to first network equipment;
Control command is sent to second network equipment from first network equipment; And
Respond the stream of audio-visual data of this control command reception at first network equipment from the change of second network equipment.
2. method according to claim 1, wherein first network equipment is a set-top box, and second network equipment is to be applicable to the home server that is connected to a plurality of set-top box.
3. method according to claim 1, wherein this audio-visual data is continuous compressed audio video data stream.
4. method according to claim 1 wherein further comprises:
Obtain a file option at first network equipment, this document option represents to be stored in a file in the storer that links to each other with second network equipment, and this document comprises audio-visual data; And
This document option is sent to second network equipment from first network equipment.
5. method according to claim 4, wherein this document comprises a kind of in the video data and voice data at least.
6. method according to claim 4, wherein this document is associated with the Karaoke option.
7. method according to claim 4, wherein this document comprises a film.
8. according to the described method of one of claim 1-7, wherein this control command represents to start a request of the stream of audio-visual data from second network equipment to first network equipment.
9. according to the described method of one of claim 1-7, wherein this control command represents to suspend a request of the stream of audio-visual data from second network equipment to first network equipment.
10. according to the described method of one of claim 1-7, wherein this control command is represented a request of forward one frame before the stream of audio-visual data from second network equipment to first network equipment.
11. according to the described method of one of claim 1-7, wherein this control command represents to change a request of the speed of the stream of audio-visual data from second network equipment to first network equipment.
12. method according to claim 11, wherein this control command represents to reduce a request of the speed of this stream of audio-visual data.
13. method according to claim 11, wherein this control command represents to increase a request of the speed of this stream of audio-visual data.
14. method according to claim 11, wherein this control command represents to increase the request of speed of the stream of audio-visual data of the speed of being reduced.
15., wherein respond this control command and comprise in the step of first network equipment reception from the stream of audio-visual data of the change of second network equipment according to the described method of one of claim 1-7:
Determine to have sent to the number percent of the audio-visual data of first network equipment from second network equipment.
16., wherein respond this control command and comprise in the step of first network equipment reception from the stream of audio-visual data of the change of second network equipment according to the described method of one of claim 1-7:
In the stream of audio-visual data of first network equipment time-out from second network equipment; And
Provide an options menu at first network equipment, so that the file relevant with second network equipment is selected.
17., wherein respond this control command and comprise in the step of first network equipment reception from the stream of audio-visual data of the change of second network equipment according to the described method of one of claim 1-7:
The stream of audio-visual data from second network equipment to first network equipment is continued to transmit in the former position of having suspended stream of audio-visual data.
18., wherein respond this control command and comprise in the step of first network equipment reception from the stream of audio-visual data of the change of second network equipment according to the described method of one of claim 1-7:
After first stream of audio-visual data that sends to first network equipment from second network equipment is interrupted, reception sends to second stream of audio-visual data of first network equipment from second network equipment, this first stream of audio-visual data is associated with first file, and second stream of audio-visual data is associated with second file.
19. method according to claim 18 wherein further comprises:
Before receiving second stream of audio-visual data, the file option of expression first file is sent to second network equipment from first network equipment.
20. according to the described method of one of claim 1-7, wherein this stream of audio-visual data is stored in the file that is associated with second network equipment, wherein transmitting control commands comprises:
Percentages is sent to second network equipment from first network equipment.
21. method according to claim 20 wherein further comprises:
Obtain this percentages at first network equipment.
22. according to the described method of one of claim 1-7, wherein this stream of audio-visual data is stored in the file that is associated with second network equipment, this method further comprises:
A location pointer is sent to second network equipment from first network equipment, and this location pointer is represented position hereof indirectly.
23. method according to claim 22 wherein further comprises:
Use file size and this location pointer calculate starting position hereof.
24. method according to claim 22, wherein this location pointer is a percentages.
25. a method, it is in the network that comprises first network equipment and second network equipment, and from the stream of audio-visual data of first network equipment interactively control from second network equipment to first network equipment, this method comprises:
In the control command of second network equipment reception from first network equipment, this control command is represented the required change to the stream of audio-visual data from second network equipment to first network equipment; And
Respond the stream of audio-visual data of this control command change from second network equipment to first network equipment.
26. method according to claim 25, wherein this control command represents to start the request of this stream of audio-visual data, and the step that responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
The transmission of the stream of audio-visual data of startup from first network equipment to second network equipment.
27. method according to claim 25, the step that wherein responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
The stream of audio-visual data of time-out from second network equipment to first network equipment.
28. method according to claim 25, the step that wherein responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
Forward one frame before the stream of audio-visual data from second network equipment to first network equipment.
29. method according to claim 25, the step that wherein responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
The speed of the stream of audio-visual data of change from second network equipment to first network equipment.
30. method according to claim 29, the speed of wherein changing the stream of audio-visual data from second network equipment to first network equipment comprises the speed that reduces stream of audio-visual data.
31. method according to claim 29, the speed of wherein changing the stream of audio-visual data from second network equipment to first network equipment comprises the speed that increases stream of audio-visual data.
32. method according to claim 29, the speed of wherein changing the stream of audio-visual data from second network equipment to first network equipment comprises the speed that is reduced the stream of audio-visual data of speed from increase.
33. method according to claim 25, wherein this stream of audio-visual data is stored in the file relevant with second network equipment, and this method further comprises:
Determine the amount of the audio-visual data sent to first file from second network equipment; And
The designator of this data volume is sent to first network equipment from second network equipment.
34. method according to claim 25, the step that wherein responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
The stream of audio-visual data of time-out from second network equipment to first network equipment; And
Provide an options menu at first network equipment, so that the file relevant with second network equipment is selected.
35. method according to claim 25, wherein this audio-visual data is stored in the file relevant with second network equipment, and the step that responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
Suspended the position of this stream of audio-visual data before from this document and continue the stream of audio-visual data of transmission from second network equipment to first network equipment.
36. method according to claim 25, the step that wherein responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
Stop to be sent to from second network equipment first stream of audio-visual data of first network equipment, this first stream of audio-visual data is relevant with first file; And
Startup sends to second stream of audio-visual data of first network equipment from second network equipment, and this second stream of audio-visual data is relevant with second file.
37. method according to claim 36 wherein further comprises:
Before stopping first stream of audio-visual data, receive the file option of expression second file from first network equipment to second network equipment.
38. method according to claim 25, wherein this audio-visual data is stored in the file relevant with second network equipment, and the step that responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
In the percentages of second network equipment reception from first network equipment;
Use this document size and percentages to calculate the starting point of this document; And
Starting point from this document begins, and audio-visual data is sent to first network equipment from second network equipment.
39. method according to claim 25, wherein this audio-visual data is stored in the file relevant with second network equipment, and the step that responds the stream of audio-visual data of this control command change from second network equipment to first network equipment comprises:
In the location pointer of second network equipment reception from first network equipment, the position of this location pointer secondary indication in this document;
Use file size and the starting point of this location pointer calculating in this document; And
Starting point from this document begins audio-visual data is sent to first network equipment from second network equipment.
40. according to the described method of claim 39, wherein this location pointer is a percentages.
41. according to the described method of one of claim 25-40, wherein this audio-visual data is associated with Karaoke option or movie options.
42. a network equipment, it is connected to first network equipment, and this second network equipment is applicable to the stream of audio-visual data of control from second network equipment to first network equipment, comprising:
Processor; And
Storer, at least one in this processor and the storer is applicable to the execution following steps:
In the control command of second network equipment reception from first network equipment, this control command is represented the required change to the stream of audio-visual data from second network equipment to first network equipment; And
Respond the stream of audio-visual data of this control command change from second network equipment to first network equipment.
43. according to described second network equipment of claim 42, wherein this audio-visual data is associated with a Karaoke option or movie options.
44. network equipment, it is suitable for being connected to an interactive TV networks that comprises second network equipment, this first network equipment is suitable for the stream of audio-visual data of interactively control from second network equipment to first network equipment, is used to output to TV, comprising:
Processor; And
Storer, at least one in this processor and the storer is suitable for carrying out following steps:
Obtain a control command at first network equipment, this control command is represented the required change of the stream of audio-visual data from second network equipment to first network equipment;
This control command is sent to second network equipment from first network equipment; And
Respond this control command, in the stream of audio-visual data of first network equipment reception from the change of second network equipment.
45. according to described first network equipment of claim 44, wherein this audio-visual data is associated with a Karaoke option or movie options.
46. a system, it is suitable for making user's interactively to control to the stream of audio-visual data of one of a plurality of set-top box, comprising:
Wherein store the storer of a plurality of files;
Home server, it is configured to respond the transmission of the audio-visual data that a control command control is associated with one or more files in a plurality of files; And
A plurality of set-top box, it is connected to home server, and each in a plurality of set-top box is configured to a control command is sent to home server, sends to the stream of audio-visual data of corresponding set-top box from home server with change.
47. according to the described system of claim 46, wherein this home server is connected to a digital subscriber line.
48. according to the described system of claim 47, wherein this audio-visual data is associated with a movie options with a Karaoke option.
49. method, it is in an interactive TV network with the network equipment that is connected to server, arrive the stream of audio-visual data of this network equipment from this server from this network equipment control, be used to output to TV, this audio-visual data is stored in one of a plurality of files relevant with this server, and this method comprises:
One or more files in this network equipment selection a plurality of files relevant with this server;
Specify the order of transmission of one or more files at this network equipment;
The information of the selected one or more files of expression is sent to server from this network equipment; And
This order of transmission is sent to this server from this network equipment, thereby start stream of audio-visual data from this server to this network equipment.
50., wherein further comprise according to the described method of claim 49:
Obtain a control command at this network equipment, this control command is represented the required change to the stream of audio-visual data from this server to this network equipment; And
This control command is sent to this server from this network equipment.
51., wherein further comprise according to the described method of claim 49:
Change this order of transmission at this network equipment; And
The order of transmission of change is sent to server from this network equipment.
52. method, it is in the network with the network equipment that is connected to a server, from the stream of audio-visual data of this network equipment control from this server to this network equipment, this stream of audio-visual data is stored in one or more files in a plurality of files relevant with this server, and this method comprises:
Select the type relevant with one or more files at this network equipment, this selection type is represented a film file option or Karaoke file option;
At the designator of this network equipment selection one or more files relevant with this server, these one or more files have corresponding selected selection type respectively; And
The information of the selecteed one or more files of expression is sent to this server from this network equipment.
53., wherein further comprise according to the described method of claim 52:
Specify the order of transmission of one or more files; And
The information of expression order of transmission is sent to this server from this network equipment.
54. one kind sends to the method for the network equipment to audio-visual data, in being connected to the server of the network equipment, this server has the relational storage of a plurality of files of storage, and this method comprises the steps:
Receive the file option of representing the one or more files a plurality of files from this network equipment, this audio-visual data is stored at least one file of a plurality of files;
Receive the order of transmission of one or more files from this network equipment;
Select next file in one or more files according to this order of transmission at this server; And
Indication according to order of transmission sends to this network equipment to the audio-visual data of the next file in one or more files.
55., wherein further comprise according to the described method of claim 54:
Receive a control command at this server from this network equipment, this control command is represented the required change to the stream of audio-visual data from this server to this network equipment; And
Respond this control command, the stream of audio-visual data of change from this server to this network equipment.
56. according to the described method of one of claim 49-51 or 54-55, each file in wherein a plurality of files comprises a Karaoke file or a movie file.
57. according to the described method of one of claim 49-55, wherein this network equipment is a set-top box.
58., wherein further comprise according to the described method of one of claim 54-55:
Each file in selected one or more files is repeated this selection and forwarding step.
59. network equipment in comprising the interactive TV networks of server, this network equipment is applicable to the stream of audio-visual data of control from this server to this network equipment, be used to be input to TV, this audio-visual data is stored in one or more files relevant with this server, and file network equipment comprises:
Processor; And
Storer, at least one in this processor and the storer is applicable to:
Select the one or more files relevant at this network equipment with this server;
Specify the order of transmission of one or more files at this network equipment;
The information of specifying selected one or more files is sent to this server from this network equipment; And
This order of transmission is sent to this server from this network equipment, thereby start stream of audio-visual data from this server to this network equipment.
60. according to the described equipment of claim 59, each in wherein a plurality of files comprises a Karaoke file or a movie file.
61. network equipment that is connected to the server in the interactive TV networks, this network equipment is applicable to the stream of audio-visual data of control from server to this network equipment, be used to output to televisor, this audio-visual data is stored in one of a plurality of files relevant with this server, and this network equipment comprises:
Processor; And
Storer, one of this processor and storer are applicable to the execution following steps at least:
This network equipment select with a plurality of files in the relevant option type of one or more files, this option type is represented the movie file option or the file option of playing Karaoka;
At the identifier of this network equipment selection one or more files relevant with this server, these one or more files have corresponding selected option type respectively; And
The information of the selected one or more files of expression is sent to this server from this network equipment.
62. a server, it is connected to the network equipment in interactive TV networks, and this server has the relational storage of a plurality of files of storage, and this server is applicable to audio-visual data is sent to this network equipment, comprising:
Processor; And
Storer, one of this processor and storer are applicable to the execution following steps at least:
Receive a file option from the network equipment of representing one or more files, this audio-visual data is stored at least one file of a plurality of files;
Receive the order of transmission of one or more files from this network equipment;
Select next file in one or more files according to this order of transmission at this server; And
According to the indication of order of transmission, the audio-visual data in the next file in one or more files is sent to the network equipment from this server.
63. according to the described server of claim 62, each file in wherein a plurality of files comprises a Karaoke file or a movie file.
64. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from this central server to this network equipment from one of a plurality of network equipments, this home server is connected to a plurality of network equipments, and this method comprises the steps:
Obtain a control command at this network equipment, this control command is represented the required change to the stream of audio-visual data from central server to this network equipment;
This control command is sent to central server from this network equipment by home server; And
Respond this control command in the stream of audio-visual data of this network equipment reception from the change of central server.
65. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from this central server to this network equipment from one of a plurality of network equipments, this home server is connected to a plurality of network equipments, and this method comprises the steps:
Obtain a control command at this network equipment, this control command is represented the required change to the stream of audio-visual data from this central server to this network equipment;
This control command is sent to central server from this stream of audio-visual data by home server; And
Respond this control command change sends to the network equipment from central server stream of audio-visual data.
66. according to the described method of claim 65, the step that wherein responds the stream of audio-visual data of this control command change from central server to this network equipment comprises:
The stream of audio-visual data of change from the central server to the home server; And
When the step of the stream of audio-visual data of change from the central server to the home server comprises that a stream of audio-visual data of compression sends to home server, the stream of audio-visual data of compression is sent to this network equipment.
67., wherein further comprise according to the described method of claim 66:
Before the stream of audio-visual data of compression is sent to this network equipment, the stream of audio-visual data of store compressed in the storer relevant with home server.
68., wherein the stream of audio-visual data of compression is sent to the network equipment and is carried out in real time according to the described method of claim 66.
69. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from this central server to this network equipment from one of a plurality of network equipments, this home server is connected to a plurality of network equipments, and this method comprises the steps:
Receive a control command at central server from one of a plurality of network equipments, this control command is represented the required change to the stream of audio-visual data from this central server to this network equipment; And
Respond this control command, the stream of audio-visual data of change from central server to this home server, thus make the stream of audio-visual data from the central server to the network equipment alternatively be controlled by this network equipment.
70. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from this central server to this network equipment from one of a plurality of network equipments, this home server is connected to a plurality of network equipments, and this method comprises the steps:
Receive a control command from one of a plurality of network equipments, this control command is represented send to the required change of the stream of audio-visual data of a plurality of network equipments by this home server from central server; And
Respond this control command, the stream of audio-visual data of change is sent to home server from central server, thereby make a stream of audio-visual data be sent to the network equipment, alternatively to control by this network equipment from central server.
71. according to the described method of claim 70, wherein the stream of audio-visual data of this stream of audio-visual data and change is relevant with a Karaoke file or movie file respectively.
72. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from this central server to this network equipment from one of a plurality of network equipments, this home server is connected to a plurality of network equipments, and this method comprises the steps:
Receive a control command at home server from this network equipment, this control command is represented the required change to the stream of audio-visual data from central server to this network equipment;
This control command is sent to this central server;
Respond this control command receives change from this central server stream of audio-visual data; And
The stream of audio-visual data of change is sent to this network equipment from home server, thereby make the stream of audio-visual data of this network equipment change from central server to this network equipment.
73., wherein further comprise according to the described method of claim 72:
Determine whether the file relevant with this control command is stored in the storer of being correlated with this home server; And
When the file relevant with this control command is not stored in the storer of being correlated with this home server, carry out sending and receiving step.
74., wherein further comprise according to the described method of claim 72:
Before the stream of audio-visual data of change is sent to this network equipment from home server, the stream of audio-visual data of storage change in the storer relevant with this home server.
75. according to the described method of claim 72, wherein the stream of audio-visual data that should change is relevant with first file, this first file is different from second file relevant with the audio-visual data that sends to this network equipment from central server.
76., wherein, the stream of audio-visual data of this change is sent to this network equipment from home server to equal to receive the speed of the stream of audio-visual data of this change from this central server according to the described method of claim 72.
77. according to the described method of claim 72, wherein before this control command is sent to central server, to be different from the speed of stream of audio-visual data, receive the stream of audio-visual data of this change by home server from central server to this network equipment.
78. according to the described method of claim 72, the very first time point beginning of stream of audio-visual data in a file that wherein should change, this very first time point are different from the process of stream of audio-visual data at home server and receive second time point in the file of this control command.
79. according to the described method of claim 72, wherein this audio-visual data is relevant with first file, and the stream of audio-visual data of change is relevant with second file.
80. according to the described method of claim 79, wherein this first file is different from second file.
81. according to the described method of claim 79, wherein this first file is identical with second file.
82. according to the described method of one of claim 75 or 79-81, wherein this first file is film file or Karaoke file, and this second file is a film file or Karaoke file.
83. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from one of a plurality of network equipments from this central server to this network equipment, this home server is connected to a plurality of network equipments, this home server has a relevant storer, and this method comprises the steps:
Receive a control command at this home server from this network equipment, this control command is represented the required startup of the stream of audio-visual data relevant with specific file;
Determine whether this specific file is stored in the storer relevant with home server; And
When definite this specific file is not stored in the storer relevant with home server, this control command is sent to this central server.
84. 3 described methods according to Claim 8 wherein further comprise:
When definite specific file is not stored in the storer relevant with home server, responds this control command and receive a stream of audio-visual data, and this stream of audio-visual data is sent to this network equipment from home server from central server.
85. 3 described methods according to Claim 8 wherein further comprise:
Respond this control command in the stream of audio-visual data of home server reception from this central server; And
This stream of audio-visual data is sent to this network equipment from home server.
86. 4 described methods according to Claim 8 wherein further comprise:
When definite specific file is not stored in the storer relevant with home server, this stream of audio-visual data is stored in the file in the storer relevant with home server.
87. 3 described methods according to Claim 8 wherein further comprise:
Respond this control command this home server receive with from the relevant packed data of the specified file of central server; And
This specified file is stored in the storer relevant with home server.
88. method, it is in the network that comprises the home server that is connected to central server, alternatively control stream of audio-visual data from one of a plurality of network equipments from this central server to this network equipment, this home server is connected to a plurality of network equipments, this home server has a relevant storer, and this method comprises the steps:
In the control command of home server reception from this network equipment, this control command is represented the required startup of the data stream relevant with specific file;
This control command is sent to this central server;
Respond this control command, in the stream of audio-visual data of home server reception from central server; And
This stream of audio-visual data is sent to this network equipment from home server.
89. 8 described methods according to Claim 8 wherein further comprise:
This stream of audio-visual data of storage in the storer relevant with home server.
90. according to the described method of one of claim 64-69,72-74 or 76-78, wherein this audio-visual data is relevant with a Karaoke option or movie options.
91. the described method of one of 3-89 according to Claim 8, wherein this specific file is film file or Karaoke file.
92. central server, it is suitable for being connected to home server, this home server is connected to a plurality of network equipments, and this central server is applicable to a stream of audio-visual data is sent to one or more network equipments from central server by this home server, comprising:
Processor; And
Storer, storage instruction in this storer is used for:
Receive a control command from one of a plurality of network equipments, this control command is represented send to the required change of the stream of audio-visual data of one of a plurality of network equipments by home server from central server; And
Respond this control command, the stream of audio-visual data of change is sent to this network equipment from middle server, thereby make a stream of audio-visual data be sent to this network equipment from central server, alternatively to control by this network equipment.
93. a home server, it is applicable to and is connected to a central server and a plurality of network equipment, and this home server can be configured to be used for alternatively controlling the stream of audio-visual data from this central server to a plurality of network equipments, comprising:
Processor; And
Storer, wherein storage is as giving an order:
Be used in the appointment of home server from a control command of network equipment reception, this control command is represented the required change to the stream of audio-visual data from central server to this network equipment;
Be used for this control command is sent to the instruction of central server;
Be used to respond this control command receives the stream of audio-visual data of change from this central server instruction; And
Be used for the stream of audio-visual data of change is sent to the instruction of this network equipment from home server, thereby make the stream of audio-visual data of this network equipment change from central server to this network equipment.
94. according to the described home server of claim 93, wherein this storer further comprises:
Be used for determining whether the file relevant with this control command is stored in the instruction of the storer relevant with home server; And
Be used for when the file relevant with this control command is not stored in the storer relevant with home server, carrying out the instruction of transmission and receiving step.
95. a home server, it is applicable to and is connected to a central server and a plurality of network equipment, and this home server can be configured to be used for alternatively controlling the stream of audio-visual data that arrives this network equipment from one of a plurality of network equipments, comprising:
Processor; And
Storer, wherein storage is as giving an order:
Be used for receiving at this network equipment of home server the instruction of a control command, this control command request starts the stream of audio-visual data relevant with specific file;
Be used for determining whether specific file is stored in the instruction of the storer relevant with this home server; And
Be used for when determining that this specific file is not stored in the storer relevant with home server, this control command being sent to the instruction of central server.
96. according to the described home server of claim 95, this storer further comprises:
Being used to respond this control command receives a stream of audio-visual data and this stream of audio-visual data is sent to the instruction of this network equipment from home server from central server.
97. according to the described home server of claim 96, wherein this storer further comprises:
Be used for stream of audio-visual data is stored in appointment in the file of the storer relevant with home server.
98. a system is used to make continuous stream of audio-visual data to be sent to a network equipment, comprising:
Central server, it has relevant storer, and this memory stores has a plurality of files;
Home server, it is connected to this central server, and has relevant storer, and this home server is configured to not obtain a file from this central server when the file of being asked is not stored in the storer relevant with home server; And
Be connected to a plurality of network equipments of home server, each network equipment is configured to be used for a file request is sent to this home server, and the request to the audio-visual data relevant with the institute demand file is represented in this document request.
99. according to the described system of claim 98, comprising:
The storer relevant with this home server;
Wherein when from central server acquisition this document, this home server is configured to store this document in this storer.
100. according to the described system of claim 99, wherein the file request that is received from one of a plurality of network equipments when response is when this central server obtains this document, and home server is configured to a stream of audio-visual data relevant with this document and sends to one of these a plurality of network equipments.
101. according to the described system of claim 98, wherein the file request that is received from one of a plurality of network equipments when response is when this central server obtains this document, and this home server is configured to a stream of audio-visual data relevant with this document and sends to one of a plurality of network equipments.
102. according to the described system of claim 101, wherein respond the control command that receives from one of a plurality of network equipments, this central server is configured to send the stream of audio-visual data of change, and wherein each of a plurality of network equipments is configured to expression is sent to corresponding network device to the control command of the required change of this stream of audio-visual data.
103. home server, it is applicable to and is connected to a central server and a plurality of network equipment, this home server can be configured to be used for alternatively control stream of audio-visual data from this central server to a plurality of network equipments from one of a plurality of network equipments, comprising:
Processor; And
Storer, wherein storage is as giving an order:
Be used in the instruction of home server reception from first control command of this network equipment, first control command is represented the data stream required startup relevant with specific file;
Be used for first control command is forwarded to the instruction of this central server;
Be used to respond first control command in the instruction of home server reception from the stream of audio-visual data of central server;
Be used for this stream of audio-visual data is sent to from home server the instruction of this network equipment;
Be used in the instruction of home server reception from second control command of this network equipment, this second control command is represented the required change to data stream;
Be used for second control command is forwarded to the instruction of central server;
Be used to respond second control command in the instruction of home server reception from the stream of audio-visual data of the change of central server; And
Be used for the stream of audio-visual data of change is sent to from home server the instruction of this network equipment.
104. according to the described home server of claim 103, this storer further comprises:
Be used for instruction in storer storage first stream of audio-visual data relevant with home server.
105. according to the described server of one of claim 95-97 or 103-104, wherein this specific file is Karaoke file or film file.
106. according to the described system of one of claim 98-102, wherein institute's demand file is Karaoke file or film file.
107. network equipment, it is applicable to and is connected to the network that comprises the home server that is connected with central server, this home server is applicable to and is connected to a plurality of network equipments, this network equipment is applicable to the stream of audio-visual data of alternatively controlling from central server to this network equipment, comprising:
Processor; And
Storer, one of this processor and storer are applicable at least:
Obtain a control command at this network equipment, this control command is represented the required change to the stream of audio-visual data from the central server to the network equipment;
This control command is sent to central server from this network equipment by home server; And
Respond this control command, in the stream of audio-visual data of network equipment reception from the change of central server.
CNB018123759A 2000-07-07 2001-07-05 Interactive data Transmission system Expired - Lifetime CN1205569C (en)

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US09/699,108 US7068596B1 (en) 2000-07-07 2000-10-26 Interactive data transmission system having staged servers

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