CN100586171C - Reception device, station selection method, and stream distribution system - Google Patents
Reception device, station selection method, and stream distribution system Download PDFInfo
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- CN100586171C CN100586171C CN200480000658A CN200480000658A CN100586171C CN 100586171 C CN100586171 C CN 100586171C CN 200480000658 A CN200480000658 A CN 200480000658A CN 200480000658 A CN200480000658 A CN 200480000658A CN 100586171 C CN100586171 C CN 100586171C
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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]
- H04N21/40—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
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
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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]
- H04N21/60—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
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
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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]
- H04N21/40—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
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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]
- H04N21/40—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
- H04N21/482—End-user interface for program selection
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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]
- H04N21/60—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
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- 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
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Abstract
When viewing of stream data is switched to another input and again switched to input of the stream data, it is possible to easily reproduce the stream data, starting at the position immediately before the position when switched to the another input. When input is switched to a DTV broadcast received by an antenna (2) while reproducing a video stream transmitted from a video server (10), a receiver (1) requests the video server (10) to stop reproduction of the video stream and store the position information where the video stream reproduction is stopped. When the input is switched again to the video stream in the receiver (1), the receiver (1) requests the video server (10) to resume reproduction of the video stream which has been reproduced up to the moment immediately before the previous input switching. Here, the position information stored upon transmission of the reproduction stop request is transmitted to the video server (10) and reproduction of the video stream is resumed at the position of the previous input switching.
Description
Technical field
The present invention relates to a kind of receiving equipment, method of channel selection and stream distribution system, they are suitable at switching television broadcasting and flow data and receive under one the situation that is switched using.
Background technology
In recent years, be associated, show as the DTV receiver of the television broadcasting of the reception of digital signal and popularize with the progress of the preparation of the beginning of Digital Television (hereinafter the being abbreviated as DTV) broadcasting of using satellite and ground digital television broadcast.In the DTV receiver, generally also receive traditional ground simulation television broadcasting.
Be associated with the development that can realize the network environment of high-speed communication in the internet, proposed such service: wherein the flow data by network issue video image etc. transmits such as the stream that reproduces it when receiving data.Flow data for example is stored in the content server on the network.The DTV receiver is connected by network bi-directional ground with content server.When DTV receiver-side request content server is issued required video image, content server is selected the flow data of the video image of being asked from institute's stored stream data, reproduce it, and it is sent to the DTV receiver that forms request, issue flow data thus by network.The flow data that the DTV receiver receives and demonstration is sent.
In recent television receiver, in many cases, receiver has a plurality of inputs and can further import another signal of VTR (video tape recorder) etc.The user can switch the video image of numeral or analog television broadcast, stream issue in single DTV receiver, from the vision signal of VTR output etc., and can appreciate and monitor them.
In JP-A-2000-253367, so a kind of technology is disclosed: wherein use EPG (electronic program guide) data can search in digital television broadcasting program on the internet or digital content, and switch and monitor these contents based on the result of search.
In the function with receiving television broadcasting with receive in the television receiver of the function that sends flow data by network, even in the process of the reception of flow data, input still can switch to another input such as television broadcasting etc.Yet, input switches under the situation of another input such as television broadcasting etc. when receiving and showing flow data, if being saved, in content server, reproduces flow data, even still can carry out the reproduction of flow data when monitoring the content of another input.Therefore, under the data conditions after the user switches to the input of flow data once more from another input and wish to monitor just in time the flow data of the data before switching to another input, then need to turn back to the reproduction position of flow data.
As indicated above, in the television receiver by the function of the flow data of network transmission, need automatically restart the function of the reproduction of flow data in function with receiving television broadcasting and reception from the position that turns back to previous reproduction position.
On the other hand, as shown in the example shown in the accompanying drawing 1, the DTV receiving system has been proposed, wherein the digital of digital video data of 110 broadcasting via satellite and the DTV broadcasting that receives by antenna 102 is stored in the hard disk drive (HDD) 101 provisionally, and this hard disk drive is built in the receiver 100 that can receive DTV.Digital of digital video data by 103 pairs of storages in HDD 101 of signal processing unit carries out the prearranged signal processing, and is converted into the signal by monitoring that receiver 120 can show, and flows to supervision receiver 120.According to this structure, be stored in continuously among the HDD 101 by the digital of digital video data that antenna 102 receives at some channel.
In this system, for example, display be set to provisionally park mode with the information of at length seeing the commercial break that inserts in the program of in some channel, having broadcasted etc. and be superimposed upon in the video data and in DTV broadcasting the information of the data broadcasting of broadcasting, and the video data of the television broadcasting that receives is stored among the HDD 101.After this, by carrying out continuously video data is stored among the HDD 101, when the park mode of cancellation display, if from HDD 101, sequentially read the data of lighting from the time of the setting of park mode, then can be retained in before the park mode and the continuity of the video image that reproduces afterwards.
Consider so a kind of method, by this method, realize that the structure that receives the flow data that sends by network is added in the above-mentioned structure.Lighting the flow data that is received from the time that switches to another input in the process of the reception of flow data is stored in the HDD 101 continuously., when turning back to flow data, another input, can restart in input from the reproduction of the flow data of the switching position of input by sequentially reading out in stored stream data the HDD 101 from lighting in the time of the switching of input.
Yet, 1 structure with reference to the accompanying drawings, because HDD 101 is built in the television receiver, therefore the problem that exists is that this has increased cost.Also the problem of Cun Zaiing is owing to reproduce it when video data is stored in HDD 101, and is therefore heavier to the burden of equipment.In addition, also the possibility of Cun Zaiing is, because the limited memory capacity of HDD 101 causes the flow data that can not store all receptions.In this case, the problem that has the danger of finishing reproduction midway.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of receiving equipment, method of channel selection and stream distribution system, wherein in the process of monitor flows data, input switched to another input and input turns back under the situation of flow data once more, can realize the reproduction of the flow data of the position before just in time switching to another input, and have storage device without receiver side.
According to the present invention, for addressing the above problem, provide a kind of receiving equipment, this receiving equipment can switch and receiving television broadcasting and flow data, comprising: the transcriber that reproduces the flow data that is received; At the switching device shifter that between transcriber input and another input, switches input; With with the communicator of the transmission sources traffic of flow data, wherein in the process of reproducing flow data by transcriber, will import from switching under the situation of another input from the transcriber input by switching device shifter, to stop the transmission source that stops to ask to send to flow data of the transmission of flow data by communicator, and switch to from another input once more under the situation of transcriber output will importing by switching device shifter, will be by communicator from the transmission source that begins to ask to send to flow data of the reproduction of the position beginning flow data of the transmission that stops flow data.
According to the present invention, a kind of method of channel selection is provided, this method can be switched and receiving television broadcasting and flow data, comprises following step: reproduce the flow data that receives; Switching input from reproducing between step input and another input; With with the transmission sources traffic of flow data, wherein reproducing in the process of flow data will import from reproducing step input certainly and switching under the situation of another input by switch step by reproducing step, to stop the transmission source that stops to ask to send to flow data of the transmission of flow data by communication steps, and switch to from another input once more under the situation of output of reproducing step will importing by switch step, will be by communication steps from the transmission source that begins to ask to send to flow data of the reproduction of the position beginning flow data of the transmission that stops flow data.
According to the present invention, provide a kind of flow data is distributed to can switch and the stream distribution system of the receiving equipment of receiving television broadcasting and flow data, comprising: the stream data servers of reproducing and send flow data; And receiving equipment, this receiving equipment has and is used to receive flow data that sends from stream data servers and the transcriber that reproduces the flow data that is received, at the switching device shifter and the communicator of communicating by letter that between transcriber input and another input, switch input with stream data servers, wherein in the process of reproducing flow data by transcriber, will import from switching under the situation of another input from the transcriber input by switching device shifter, receiving equipment will stop the transmission of flow data by communicator the request that stops to send to stream data servers, this stream data servers is according to the transmission that stops to ask to stop the stream data servers stream data, switch to from another input once more under the situation of transcriber input will importing by switching device shifter, receiving equipment will send to stream data servers from the request that begins of the reproduction of the position beginning flow data of the transmission that stops flow data by communicator, and this stream data servers asks to reproduce flow data and flow data is sent to receiving equipment from the position that the transmission of flow data has stopped according to beginning.
As indicated above, according to the present invention, in the process of reproducing the flow data received in input when flow data switches to another input, the transmission source that stops to ask to send to flow data that will stop the transmission of flow data.Switch under the situation of flow data the transmission source that begins to ask to be sent to flow data that begins to reproduce flow data from the position of the transmission that stops flow data once more from another input in input.Therefore, even the receiver side of flow data does not have the storage device of flow data, in input in case switch to another input and under the situation that after this turns back to flow data, still can be from reproducing flow data continuously in the position that last time stops flow data.
Description of drawings
Accompanying drawing 1 is depicted as the schematic diagram of explanation according to the system of the DTV receiver that wherein has hard disk drive of prior art.Accompanying drawing 2 is depicted as the schematic figures of explanation according to the structure of the example of the stream distribution system of the first embodiment of the present invention.Accompanying drawing 3 is depicted as the schematic figures of explanation according to the structure of the example of the DTV receiver of the first embodiment of the present invention.Accompanying drawing 4 is depicted as the flow chart of explanation according to the operation of the stream distribution system of the first embodiment of the present invention.Accompanying drawing 5 is depicted as the wherein schematic sequence chart of the process of the example of the transmission of DTV receiver request video server time-out stream is described.Accompanying drawing 6 is depicted as and illustrates that DTV receiver request video server wherein begins to flow the schematic sequence chart of process of the example of issue.Accompanying drawing 7 is depicted as the calcspar of explaining the second embodiment of the present invention.Accompanying drawing 8 is depicted as the schematic figures of the structure of the example that history lists is described.Accompanying drawing 9 is depicted as explains the calcspar of use according to the operation of the history lists of second embodiment of the invention.Accompanying drawing 10 is depicted as the schematic sequence chart of explanation process according to a second embodiment of the present invention.
Embodiment
The hereinafter with reference accompanying drawing is described the first embodiment of the present invention.Accompanying drawing 2 is depicted as the schematic diagram of explanation according to the structure of the example of the stream distribution system of first embodiment of the invention.For example, Digital Television (DTV) broadcasts radio waves (13 broadcasting via satellite) is received by antenna 2, is converted to flow data by receiving the processing unit (not shown), and the signal processing unit 3 that flows to receiver 1.The flow data of 3 pairs of conveyings of signal processing unit is carried out predetermined processing and is given supervision receiver 4 with treated data delivery.Monitor that receiver 4 is based on the signal display video image of being carried.
In the following description, reproduce institute's video data stored and suitably be expressed as " reproduction video stream data " etc. with the operation that it is exported in video server 10 as flow data.
In the first embodiment of the present invention, the user when monitoring that receiver 4 monitors video image based on the flow data that sends from video server 10, if user's operational order sends the input of signal processing unit 3 from video server 10 flow data switches to another input, then the time of storage flow data is at this moment reproduced the position.Receiver 1 request video server 10 suspends the reproduction of video stream data.If turn back to the flow data that sends from video server 10 to the input of signal processing unit 3 from another input, then receiver 1 request video server 10 from the reproduction position before the input of signal processing unit 3 switches to another input just in time (storage receiver 1) reproduction video stream data.
Stream distribution system according to the first embodiment of the present invention of constructing as indicated abovely, even receiver 1 does not have the storage device of flow data such as hard disk etc., when the flow data that the input of receiver 1 is sent from video server 10 the user switched to another input and turns back to from flow data that video server 10 sends once more from another input, he can be from the video image of following position supervision based on the flow data that sends from video server 10: it is the follow-up location of the reproduction position before input switches to another input just in time.
Accompanying drawing 3 is depicted as the structure according to the example of the DTV receiver 20 of the first embodiment of the present invention.DTV receiver 20 has such structure: wherein the receiver of describing in accompanying drawing 21 is enclosed in the identical housing with supervision receiver 4.DTV receiver 20 has BS/CS digital tuner 30 and analog tuner 31, and can receive DTV broadcasting such as BS (broadcasting satellite) broadcasting that receives by the antenna (not shown) or CS (communication satellite) broadcasting, use the analog television broadcast of surface wave etc.
Based on the channel selection command signal of carrying from AV switch 24, the broadcasting of the channel that 30 receptions of BS/CS digital tuner are selected from BS broadcasting and CS broadcasting and output are based on the video image and the sound signal of the broadcasting that is received.Be input to AV (audio video) switch 24 from the video image and the sound signal of 30 outputs of BS/CS digital tuner.
Similarly, based on the channel selection command signal of carrying from AV switch 24, analog tuner 31 receives the broadcasting of the channel of selecting from analog television broadcast, and output is based on the video image and the sound signal of the broadcasting that is received.Give AV switch 24 from the video image and the audio frequency signal conveys of analog tuner 31 outputs.
For example, have A/D converter therein by making AV switch 24, AV switch 24 can tackle analog video image and sound signal and digital video image and two kinds of inputs of sound signal.External input terminals of greater number can also be provided.About video image and sound signal, hereinafter mainly describe Video signal processing, save explanation to sound signal.
Based on the channel selection control signal of carrying from channel selection control microcomputer 23, AV switch 24 is selected the input of BS/CS digital tuner 30, analog tuner 31, external input terminals and stream decoder 26.In addition, when selecting BS/CS digital tuner 30 or analog tuner 31, AV switch 24 carries the channel selection command signals receiving channels is assigned in the BS/CS digital tuner 30 selected based on the channel selection control signal and the analog tuner 31.
Export and flow to signal processing unit 28 by one vision signal in BS/CS digital tuner 30, analog tuner 31 and external input terminals of 24 selections of AV switch from AV switch 24.The vision signal of having carried out the prearranged signal processing by signal processing unit 28 flows to display unit 29 such as CRT (cathode ray tube), LCD (LCD), PDP (plasma display) etc.Demonstration is based on the video image of vision signal.
Channel selection control microcomputer 23 for example comprises CPU (CPU) and has ROM (read-only memory), RAM (random access memory) etc.Based on the program that before has been stored among the ROM, channel selection control microcomputer 23 carries out above-mentioned channel selection control and controls whole DTV receiver 20.Channel selection control microcomputer 23 flows to stream player 25 (will explain hereinafter) with the control signal of the reproducing control of instruction stream data.RAM is as the working storage of CPU.In addition, memory 32 is connected to channel selection control microcomputer 23.
Long-distance Control pilot valve 21 (being abbreviated as remote controller 21 hereinafter) is used the Long-distance Control of doing DTV receiver 20 by for example using infrared signal.Providing the required various operating means of operation DTV receiver 20 such as channel button, input switching key, volume to be set for remote controller 21 is provided with button, power connection/cut-out button, increases/reduce the button (/ down) of receiving channels etc. one by one up.When user's operation push-button, remote controller 21 is modulated to control signal infrared signal and sends it according to the button of operation.
Though be to have described this embodiment under the prerequisite of button at the operating means that hypothesis is used for remote controller 21 and provides, the present invention is not limited to this example.For example, can indicate upper and lower, the right side and left to cross key, also can be used as operating means by touching the touch panel of carrying out input etc.Dial by the rotary setting input value or comprise rotary manipulation and the operating means of the combination of pressing operation also can use.
The remote controllers light sensing unit 22 that passes through DTV receiver 20 from the infrared signal of remote controller 21 transmissions receives and these infrared signals of demodulation.Be fed to channel selection control microcomputer 23 from the control signal of this infrared signal demodulation.Based on this control signal, channel selection control microcomputer 23 has for example formed aforesaid channel selection control signal and it has been flowed to AV switch 24.
Transmission/reception control unit 27 is connected to internet 12 by order wire and controls to the communication of internet 12, and the communication speed of this order wire is equal to or higher than for example several Mbps (MBPS).Between video server 10 and transmission/reception control unit 27, form of the access of the predetermined agreement of use such as TCP/IP (TCP) by internet 12, the flow data that sends from video server 10 can be received by DTV receiver 20, and make between DTV receiver 20 and video server 10 and can send and receive instruction and data.
Video data is stored in the data storage cell (not shown) in the video server 10.Video data for example carries out compressed encoding by MPEG2 (moving picture expert group 2) system.In video server 10, for example can from data storage cell, read, reproduce and export as flow data by the video data of title appointment.On internet 12, send flow data based on flow transmission system by for example aforesaid MPEG2 appointment.Naturally, compression of video data coded system and transmission system are not limited to MPEG2.
The URL (uniform resource locator) that is presented at the position on the internet 12 has distributed to video server 10.By internet 12 given URL, can accessing video server 10.The present invention is not limited to this example, but also URL can be offered each video data of storing in the data storage cell of video server 10.In this case, by internet 12 specified URL, can reproduce the video stream data that has provided URL.
The video stream data of on internet 12, reading and reproducing in the data storage cell of transmission from video server 10.This flow data receives and flows to stream player 25 and stream decoder 26 by transmission/reception control unit 27.
26 pairs of flow datas of being carried of stream decoder are decoded and it are flowed to AV switch 24.Stream player 25 is based on the reception of controlling the control signal control flows data of microcomputer 23 from channel selection.For example, according to the control signal from channel selection control microcomputer 23, by transmission/reception control unit 27, stream player 25 sends to video server 10 with the issue request of video data, and the decoding of instruction stream decoder 26 beginning flow datas.The video stream data that reproduces by video server 10 sends by internet 12 and receives in transmission/reception control unit 27 according to the issue request.The flow data that is received is fed to stream decoder 26, is decoded into vision signal and is input to AV switch 24.
With reference now to the operation of the flow chart description of accompanying drawing 4 according to the stream distribution system of the first embodiment of the present invention of constructing as indicated abovely.This flow chart relates to the example of the operation of following situation: wherein the user at first receives the flow data that sends from video server 10 by DTV receiver 20, according to the flow data monitoring video image that is received, in the process that monitors, input (is for example switched to another input, switch to vision signal by analog tuner 31), monitor it a little while, after this, input is turned back to the flow data that sends from video server 10 once more, and monitor it.
In first step S10, the user selects the input of the output of stream decoder 26 as DTV receiver 20.Video image according to the flow data that sends from video server 10 is displayed on the display unit 29 of DTV receiver 20.That is, the flow data that sends from video server 10 receives by transmission/reception control unit 27, by stream decoder 26 decodings, by the processing that signal processing unit 28 is scheduled to through AV switch 24, flows to display unit 29 and shows it.
If DTV receiver 20 has received the flow data that for example sends from video server 10, then user's remote controller 21 and issue switch to input the instruction (step S11) of another input (passing through analog tuner 31 inputs in this hypothesis).Remote controller 21 is modulated into control signal infrared signal and sends it based on this instruction.Infrared signal is received by remote controllers light sensing unit 22, is modulated into original control signal, and flows to channel selection control microcomputer 23.Channel selection control microcomputer 23 explains whether control signal can be switched to instruct input to switch and to differentiate input.If channel selection control microcomputer 23 determines that these inputs can be switched, then instruction will be imported the channel selection control signal that switches to analog tuner 31 from stream decoder 26 and export to AV switch 24.In addition, will show that also the signal that input has been switched passes to stream player 25 (step S12).
According to the channel selection control signal, 25 requests of stream player suspend flow data as the video server 10 in the transmission source of the flow data that has received.Stream player 25 instruction stream decoders 26 stop the decoding processing of flow data and obtain to be presented at the temporal information of the time point that suspends in the flow data.Temporal information is the information that shows from the time of the head of flow data, for example can use the timing code that is embedded in the flow data.The present invention is not limited to these, and temporal information also can be by measuring from the time acquisition of the head of the video image DTV receiver 20.The temporal information that is obtained is stored in (step S14) in the memory 32 with the heading message as the video image of the URL of the video server 10 in the transmission source of flow data and issue.
Accompanying drawing 5 is depicted as the wherein schematic sequence flow figure of the processing of the example of the reproduction of DTV receiver 20 request video servers 10 time-out streams.At first, the request of the reproduction of request time-out stream is published to stream player 25 (SEQ100) from channel selection control microcomputer 23.The stream player 25 that receives this time-out request sends for video server 10 to suspend the request (SEQ101) of the reproduction of the current video stream data that sends as flow data.When receiving this time-out request, video server 10 is carried out the processing that stops to send flow datas to DTV receiver 20.
The user monitors the video image (step S15) a little while by analog tuner 31 after the input of DTV receiver 20 is switched to analog tuner 31.
After this, for example, user's remote controller 21 and output will be imported the instruction (step S16) that switches to stream decoder 26 from analog tuner 31.Control signal based on this instruction is modulated into infrared signal, and the infrared signal of modulation is sent and receives by remote controllers light sensing unit 22 from remote controller 21.Remote controllers light sensing unit 22 is demodulated to the infrared signal that is received original control signal and it is flowed to channel selection control microcomputer 23.Channel selection control microcomputer 23 is explained control signal and is differentiated whether can switch input.If channel selection control microcomputer 23 is determined to switch input, then indication will be imported the channel selection control signal that switches to stream decoder 26 from analog tuner 31 and be output to AV switch 24.In addition, show that importing the signal that has been switched to stream decoder 26 from analog tuner 31 also passes to stream player 25 (step S17).
When channel selection control microcomputer 23 received the channel selection control signals and switches with the indication input, it switched input according to the channel selection control signal at AV switch 24.Therefore, the output of stream decoder 26 is transported to signal processing unit 28.Video image based on the output of stream decoder 26 may be displayed on (step S18) on the display 29.
Therefore the reproduction of issue source (video server 10) the beginning flow data of stream player 25 request issue flow datas just in time can be received input being switched to the video image (i.e. the issue flow data that is received) that has monitored before the analog tuner 31 according to channel selection control microcomputer 23 in above-mentioned step S10 once more.When stream decoder 26 switched to analog tuner 31 and ask video server 10 to suspend the issue flow datas, the URL of video server 10 was stored in the memory 32 in input.Temporal information storage and the time point that explanation suspends on flow data sends to video server 10 (step S19) with stream reproduction beginning request in memory 32.
Accompanying drawing 6 is depicted as the schematic sequence chart of process that the 20 request video servers 10 of DTV receiver wherein begin to flow the example of issue.At first, the request of the reproduction of beginning flow data is issued stream player 25 (SEQ200) from channel selection control microcomputer 23.Be added to reproduce as the heading message of URL (in memory 32 storage), temporal information on the flow data of the time that switches to analog tuner 31 corresponding to input and video image of video server 10 that just in time switches to the issue source of the video image that has monitored before the analog tuner 31 and begun in the request in input.
Receive to reproduce the stream player 25 that begins to ask to sending request, to reproduce from the video stream data (SEQ201) of the correspondence of this temporal information based on being increased to URL, temporal information and the heading message of reproducing the video image in beginning to ask by the video server shown in the URL 10.When receiving this request, video server 10 is from sending to DTV receiver 20 by reproduction video stream data the time shown in the temporal information and with it.This flow data receives and is fed to stream decoder 26 (SEQ202) by the transmission/reception control unit 27 of DTV receiver 20 by internet 12.
Though describedly the present invention is based on such hypothesis: the memory 32 of wherein having stored URL, heading message and temporal information is connected to channel selection control microcomputer 23, and the present invention is not limited to this example.Memory 32 can be connected to stream player 25.In this case, begin request when channel selection control microcomputer 23 is transported to stream player 25 in reproduction, URL, heading message and the temporal information of storage are read by stream player 25 in memory 32, are increased to reproduce to begin in the request, and send to internet 12.
Use accompanying drawing 7 to describe the second embodiment of the present invention now.In second embodiment of the invention, DTV receiver 20 in the above-mentioned first embodiment of the present invention keeps the history of the issue flow data that is monitored, making thus can be reproduced in the position that stops provisionally afterwards reproducing from supervision formerly at the flow data that has been monitored before.In accompanying drawing 7, specify and save detailed explanation with identical reference number corresponding to those positions of the position in above-mentioned accompanying drawing 3 to them, only show closely-related part, and save other structure with second embodiment.
In a second embodiment, in DTV receiver 20, received and the history of the flow data that monitors as history lists 50 storages.Memory 32 is as the storage purpose ground of history lists 50.In this case, for example it is desirable to replace memory 32 by nonvolatile memory, this non-volatile memories is by the battery support, even and still can keep history lists 50 at the cut state of the power supply of DTV receiver 20.
Accompanying drawing 8 is depicted as the structure of the example of history lists 50.URL as the video server in the transmission source of the flow data that is received is described in the field " URL ".If URL has been increased in the video data of issuing as flow data itself, this URL is described then.Heading message as the video data of flow data issue is described in the field " title ".Field " title " is not limited to the heading message of video data, also can use other information such as the filename of video data etc., as long as it is the information that can specify video data in by the video server shown in the field " URL ".If field " URL " display video data itself, then field " title " can be removed.
In according to the process of the supervision of the video image of the described flow data of first embodiment, be described in the field " TC " in the temporal information that forms the time-out position of request when input being switched to another input and suspending the reproduction of the video stream data that is distributed to video server as flow data.Temporal information is the temporal information that shows from the time of the head of video image, for example, can use the timing code that is embedded in the flow data.The present invention is not limited to it, and temporal information also can be by measuring from the time acquisition of the head of the video image DTV receiver 20.
With reference now to accompanying drawing 9, the operation of using history lists 50 is according to a second embodiment of the present invention described.In accompanying drawing 9, specify by identical reference number corresponding to part in above-mentioned accompanying drawing 3 and 7, and save detailed description them, only show the part that is closely related with second embodiment, saved other structure.
In history lists 50, (TC: timing code) be stored in the memory 32, this temporal information demonstration has suspended the position of the reproduction of the video stream data of issuing by flow data relatedly as the heading message of the URL (URL (1), URL (2), URL (3) and URL (4)) of the video server in the transmission source of the flow data that monitors in the past in DTV receiver 20 and the video data that is monitored and temporal information.In accompanying drawing 9, heading message and temporal information in history lists 50 have been saved.
For example, monitor by DTV receiver 20 in the video image of the issue stream of a certain video server issue the user, by remote controller 21 is carried out predetermined operation, reproduce the position of the reproduction that the flow data that has received in the past can stop from the time that receives in the past.
The process that receives the flow data that sends from a certain video server the user carry out the operation that changes channel such as on to remote controller 21/during the operation of following key etc., the control signal that forms according to this operation is modulated into infrared signal and is sent out.Infrared signal receives by remote controllers light sensing unit 22 (not shown)s, is demodulated to original control signal, and flows to channel selection control microcomputer 23.
Based on this control signal, channel selection control microcomputer 23 is read one group of URL, heading message and temporal information from stored historical table 50 memory 32.Read information in this hypothesis about URL (2).At this moment, at first read nearest canned data or also can at first read the oldest canned data.Also can at first read out in canned data on the precalculated position in the history lists 50.
Based on the information of reading from history lists 50, channel selection control microcomputer 23 forms and instructs by the video server 10B shown in the URL (2) from being begun to ask by the reproduction of the time reproduction shown in the temporal information corresponding to the video image of the title of the URL history lists 50 (2).Formed reproduction begins to ask to be fed to stream player 25 and send to the video server 10B that has described by accompanying drawing 6 from channel selection control microcomputer 23.
Respond this request, video server 10B reproduces corresponding video stream data and by the internet it is sent to DTV receiver 20.The flow data that sends from video server 10B receives by DTV receiver 20, passes through the decoding of stream decoder 26 (not shown)s under the control of stream player 25, and flows to signal processing unit 28 by AV switch 24.Flow to display 29 (not shown)s by 28 pairs of processing that the signal of being carried is scheduled to of signal processing unit and with it, and display video image.
With reference now to accompanying drawing 10, being described in the user 21 further carries out about the operation under the situation of the operation that changes channel by using a teleswitch.Suppose to have received and monitored (SEQ30) primarily by DTV receiver 20 from the flow data of video server (1) issue.
For example based on the control signal of basis to the operation of remote controller 21, channel selection control microcomputer 23 reads out in the group of next in the stored historical table 50 URL in the memory 32.Information formation reproduction based on the URL group of being read begins request and it is flowed to stream player 25 (SEQ301).Stream player 25 sends instruction with decoding that suspends the flow data that has received at present and the flow data of decoding and receiving again for stream decoder 26.
The transmission source (video server in the example of accompanying drawing 10 (1)) of the data flow that the request of stream player 25 has received is at present suspended the transmission (SEQ302) of stream and will be controlled reproduction that microcomputer 23 carries from channel selection and begins to ask to send to corresponding to the video server (video server the example of accompanying drawing 10 (2)) of relevant URL (SEQ303).
Its send the flow data that is suspended by SEQ302 information (be the transmission source of this flow data URL, video image heading message and be presented at the temporal information of the time of suspending on this flow data) all be described in the history lists 50.At this moment, URL, heading message and temporal information also can be redescribed in history lists 50 or be overwritten in on the corresponding information.
The time-out request that the stream that response sends sends, video server (1) execution are flowed stopping of sending and are handled.The reproduction that response sends begins request, video server (2) be reproduced in from the position that temporal information, shows reproduce the video stream data that shows in beginning to ask and send it (SEQ304).This flow data is received in the DTV receiver 20, is decoded into vision signal by stream decoder 26, and flows to signal processing unit 28 by AV switch 24.28 pairs of processing that the vision signal of being carried is scheduled to of signal processing unit also are presented at it on display 29.
In the second embodiment of the present invention, as indicated above, if the user carries out the operation of switching channels by remote controller 21 the process of the reception of the flow data that sends from video server, then can switch the flow data that is received based on the information of in history lists 50, describing, from beginning reproduction and display video image in the position that has last time stopped reproducing.
Operation as for remote controller 21, such method of Cun Zaiing for example: the operation by increasing channel (for example push " on " button) reproduction of stream formerly of instruction begins, and the reproduction of the new stream of operation (for example pushing the D score button) instruction by reducing channel begins.By this method, the channel of common TV broadcasting switches and monitors a plurality of issue flow datas as Qie Huaning.
Though be connected at hypothesis memory 32 under the prerequisite of channel selection control microcomputer 23 and described the present invention, the present invention is not limited to this example.As describing at first embodiment, memory 32 also can be connected to stream player 25.
Though carry out when above carrying out the operation of switching channels in hypothesis is receiving the process of issue flow data having described the present invention under the prerequisite based on the channel selection of history lists 50, the present invention is not limited to this example.For example, the predetermined button by remote controller 21 also can carry out channel selection based on history lists 50 in by the process of BS/CS digital tuner 30 or analog tuner 31 monitoring video images.
In addition, though above described the present invention under hypothesis by the path both who flow data is sent to the path of DTV receiver 20 from video server 10 and will ask to send to from DTV receiver 20 video server 10 is the prerequisite of internet 12, the present invention is not limited to this example.That is, can use different communicators to carry out and transmit a request to video server 10 to DTV receiver 20 with from DTV receiver 20 from video server 10 transmission flow datas.For example, can use radio wave to carry out from the transmission of the flow data of video server 10 to DTV receivers 20, and the transmission of 10 request can be by network such as internet 12 execution such as grade from DTV receiver 20 to video server.
In addition, though above hypothesis shows that the temporal information of the time-out position of flow data is stored under the prerequisite in the memory 32 that keeps in the DTV receiver 20 and has described the present invention that the present invention is not limited to this example.That is, the temporal information of the time-out position of demonstration flow data also can be stored in the video server 10.Receive when DTV receiver 20 sends to the time-out request of flow data of video server 10 at video server 10, video server 10 stops to respond the reproduction of the video stream data of the request that is received.In stopped process, obtain and storage about according to the positional information on the video stream data of stop position.Next time from the restarting of the reproduction of DTV receiver 20 request video stream datas the time, begin the reproduction of video stream data based on the temporal information of being stored.
As indicated above, according to the present invention, when in monitoring receiver, monitoring the video image of the video stream data that sends from video server input is switched under the situation of another input, monitor that receiver-side request video server suspends the reproduction of video stream data, and when input turned back to video stream data once more, its request video server was from last time suspending the position reproduction video stream data of reproduction.Therefore, have such effect: though the storage device that the monitor side does not have a video data such as hard disk etc., still the previous stop position of the video flowing that can send from video server begins to reproduce again.
According to a second embodiment of the present invention, the history of the video stream data that receives in the past in monitoring receiver is stored with the time-out positional information of this video stream data, and the request video server is so that from being reproduced in video stream stored data the history in the position that has last time stopped reproducing by the channel handover operation.Therefore, have such effect: the user can be as Qie Huaning the channel of common TV broadcasting switch and the monitoring video flow data.
Claims (17)
1. receiving equipment, this receiving equipment can switch and receiving television broadcasting and flow data, comprising:
Reproduce the transcriber of the flow data that is received;
At the switching device shifter that between said transcriber input and another input, switches input; With
With the communicator of the transmission sources traffic of said flow data,
Wherein reproducing by said transcriber in the process of said flow data, by said switching device shifter with said input from switching under the situation of said another input from the input of said transcriber, to stop the transmission source that stops to ask to send to said flow data of the transmission of said flow data by said communicator, and
By said switching device shifter said input is being switched to from said another input once more under the situation of said transcriber input, will be by said communicator from the said transmission source that begins to ask to send to said flow data of the reproduction of the said flow data of position beginning of the transmission that stops said flow data
Wherein said receiving equipment further comprises:
The information of storage by the said transmission source of the said flow data of said transcriber reproduction as the history store of history and
If wherein in the process of reproducing said flow data by said transcriber, switch input, then according to the switching of said input being selected said transmission source and begun to ask to send to said selected transmission source by said communicator with said from said history store by said switching device shifter by said switching device shifter.
2. receiving equipment according to claim 1 further comprises:
By said switching device shifter with said input from switching on the time point of said another input from the input of said transcriber, the positional information that acquisition is presented at the positional information of the position on the said flow data that reproduces by said transcriber obtain device and
Wherein reproducing by said transcriber in the process of said flow data, by said switching device shifter with said input after switch to said another input from the input of said transcriber, by said switching device shifter said input is being switched under the situation of said transcriber input once more from said another input, will be by said communicator from the said said transmission source that begins to ask to send to said flow data that begins the reproduction of said flow data based on the position that obtains the said positional information of device acquisition by said positional information.
3. receiving equipment according to claim 1 is wherein carried out the reception of flow data by different communicator and is saidly stopped to ask or the said transmission that begins to ask.
4. receiving equipment according to claim 1 is wherein sending under the said situation that begins to ask, with the said address that begins to ask to send said receiving equipment.
5. receiving equipment according to claim 1 is wherein sending under the said situation that begins to ask, with the said information that begins to ask to send said transmission source.
6. receiving equipment according to claim 1 is wherein sending under the said situation that begins to ask, with the said information that begins to ask to send the demonstration flow data.
7. receiving equipment according to claim 1, the URL in wherein said transmission source has been stored in the said history.
8. receiving equipment according to claim 1, wherein the URL of the stream of storing in said transmission source is stored in respectively in the said history.
9. method of channel selection, this method can switch and receiving television broadcasting and flow data, comprise following step:
Reproduce step, be used to reproduce the flow data of reception;
Switch step is used for switching input between said reproduction step input and another input; With
Communication steps is used for the transmission sources traffic with said flow data,
Wherein reproducing in the process of said flow data by said reproduction step, by said switch step with said input from switching under the situation of said another input from the input of said reproduction step, to stop the transmission source that stops to ask to send to said flow data of the transmission of said flow data by said communication steps, and
By said switch step said input is being switched under the situation of the input of said reproduction step once more from said another input, will be by said communication steps from the said transmission source that begins to ask to send to said flow data of the reproduction of the said flow data of position beginning of the transmission that stops said flow data
Wherein said method of channel selection further comprises following step:
The historical storage step, be used to store the said flow data that reproduces by said reproduction step said transmission source information as history and
If wherein in the process of reproducing said flow data by said reproduction step, switch input, then according to the switching of said input being selected said transmission source and begun to ask to send to said selected transmission source by said communication steps with said from said historical storage step by said switch step by said switch step.
10. one kind is distributed to flow data and can switches and the stream distribution system of the receiving equipment of receiving television broadcasting and flow data, comprising:
Reproduce and send the stream data servers of flow data; With
Described receiving equipment, this receiving equipment have be used to receive the said flow data that sends from said stream data servers and the transcriber that reproduces the said flow data that receives, at the switching device shifter and the communicator of communicating by letter that between said transcriber input and another input, switch input with said stream data servers
Wherein reproducing by said transcriber in the process of said flow data, by said switching device shifter with said input from switching under the situation of said another input from the input of said transcriber, said receiving equipment will stop the transmission of said flow data by said communicator the request that stops to send to said stream data servers
Said stream data servers stops to ask to stop the transmission of said stream data servers to said flow data according to said,
By said switching device shifter said input is being switched under the situation of said transcriber input once more from said another input, said receiving equipment will send to said stream data servers from the request that begins of the reproduction of the said flow data of position beginning of the transmission that stops said flow data by said communicator, and
Said stream data servers begins to ask to reproduce said flow data and said flow data is sent to said receiving equipment from the position that the transmission of said flow data has stopped according to said,
Wherein said receiving equipment further comprise storage send the said flow data by said transcriber reproduction said stream data servers information as the history store of history and
If in the process of reproducing said flow data by said transcriber, switch input, then according to the switching of said input being selected said stream data servers and begun to ask to send to said selected stream data servers by said communicator with said from said history store by said switching device shifter by said switching device shifter.
11. stream distribution system according to claim 10 is wherein carried out to send from said stream data servers receiving stream-oriented data with to said stream data servers by different communicator and is saidly stopped request or saidly begin request.
12. stream distribution system according to claim 10 is wherein sending under the said situation that begins to ask, with the said address that begins to ask to send said receiving equipment.
13. stream distribution system according to claim 10 is wherein sending under the said situation that begins to ask, with the said information that begins to ask to send said stream data servers.
14. stream distribution system according to claim 10 is wherein sending under the said situation that begins to ask, with the said information that begins to ask to send the demonstration flow data.
15. stream distribution system according to claim 10, wherein
Said receiving equipment comprises that further positional information obtains device, this positional information obtains device and is used for, by said switching device shifter with said input from having switched on the time point of said another input from the input of said transcriber, acquisition is presented at the positional information of the position on the said flow data that reproduces by said transcriber, and in the process of reproducing said flow data by said transcriber by said switching device shifter with said input after switch to said another input from the input of said transcriber, by said switching device shifter said input is being switched under the situation of said transcriber input once more from said another input, will send to said stream data servers from beginning request based on the reproduction of the said flow data of position beginning that obtains the said positional information that device obtains by said positional information said by said communicator.
16. stream distribution system according to claim 10, the URL in wherein said transmission source has been stored in the said history.
17. stream distribution system according to claim 10, wherein the URL of the stream of storing in said transmission source is stored in respectively in the said history.
Applications Claiming Priority (2)
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| JP2003163469A JP2004364227A (en) | 2003-06-09 | 2003-06-09 | Receiving apparatus, tuning method, and stream distribution system |
| JP163469/2003 | 2003-06-09 |
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| CN100586171C true CN100586171C (en) | 2010-01-27 |
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| KR (1) | KR101014290B1 (en) |
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| JP4763374B2 (en) * | 2005-07-25 | 2011-08-31 | パナソニック株式会社 | Output control device |
| CN101150709B (en) * | 2006-09-23 | 2011-10-26 | 华为技术有限公司 | A receiving control device and method for time shift program |
| BRPI0811997A2 (en) * | 2007-05-30 | 2014-11-18 | Sony Corp | RADIUS RECEIVER, AND REPRODUCTION PROCESSING METHOD. |
| JP4966282B2 (en) * | 2008-09-30 | 2012-07-04 | 株式会社東芝 | Receiving method |
| JP5428697B2 (en) * | 2009-09-16 | 2014-02-26 | ソニー株式会社 | Receiving device, receiving method, transmitting device, and computer program |
| KR101777347B1 (en) | 2009-11-13 | 2017-09-11 | 삼성전자주식회사 | Method and apparatus for adaptive streaming based on segmentation |
| KR101786051B1 (en) | 2009-11-13 | 2017-10-16 | 삼성전자 주식회사 | Method and apparatus for data providing and receiving |
| KR101750048B1 (en) | 2009-11-13 | 2017-07-03 | 삼성전자주식회사 | Method and apparatus for providing trick play service |
| KR101750049B1 (en) | 2009-11-13 | 2017-06-22 | 삼성전자주식회사 | Method and apparatus for adaptive streaming |
| KR101737084B1 (en) * | 2009-12-07 | 2017-05-17 | 삼성전자주식회사 | Method and apparatus for streaming by inserting another content to main content |
| KR101777348B1 (en) | 2010-02-23 | 2017-09-11 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving of data |
| KR20110105710A (en) | 2010-03-19 | 2011-09-27 | 삼성전자주식회사 | Method and apparatus for adaptively streaming content comprising plurality of chapter |
| KR101837687B1 (en) | 2010-06-04 | 2018-03-12 | 삼성전자주식회사 | Method and apparatus for adaptive streaming based on plurality of elements determining quality of content |
| JP5463278B2 (en) * | 2010-12-20 | 2014-04-09 | パナソニック株式会社 | Output control device and playback device |
| JP5430596B2 (en) * | 2011-03-24 | 2014-03-05 | パナソニック株式会社 | Playback device |
| GB2509323B (en) * | 2012-12-28 | 2015-01-07 | Glide Talk Ltd | Reduced latency server-mediated audio-video communication |
| KR101710502B1 (en) | 2014-04-01 | 2017-03-13 | 네이버 주식회사 | Apparatus and method for playing contents, and apparatus and method for providing contents |
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- 2004-05-21 WO PCT/JP2004/007334 patent/WO2004110065A1/en active Application Filing
- 2004-05-21 CN CN200480000658A patent/CN100586171C/en not_active Expired - Fee Related
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| JP2004364227A (en) | 2004-12-24 |
| KR101014290B1 (en) | 2011-02-16 |
| CN1698378A (en) | 2005-11-16 |
| WO2004110065A1 (en) | 2004-12-16 |
| KR20060011932A (en) | 2006-02-06 |
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