US20040117830A1 - Receiving apparatus and method - Google Patents
Receiving apparatus and method Download PDFInfo
- Publication number
- US20040117830A1 US20040117830A1 US10/717,560 US71756003A US2004117830A1 US 20040117830 A1 US20040117830 A1 US 20040117830A1 US 71756003 A US71756003 A US 71756003A US 2004117830 A1 US2004117830 A1 US 2004117830A1
- Authority
- US
- United States
- Prior art keywords
- data
- information
- unit
- contents
- image data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- 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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via 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]
- H04N21/20—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
- H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving management of server-side video buffer
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4347—Demultiplexing of several video streams
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
-
- 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
- H04N21/4438—Window management, e.g. event handling following interaction with the user interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- 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
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Abstract
Partial data related to information data is received, image data corresponding to the received partial data is generated by sequentially processing the received partial data, and the generated image data is output to a display unit. Before output of the image data corresponding to the partial data to the display unit is completed, reception of the information data is started. Then, image data corresponding to the information data is generated by processing the received information data, and image data to be displayed on said display unit is switched to the image data corresponding to the information data from the image data corresponding to the partial data after the reception of the information data is started.
Description
- The present invention relates to a receiving apparatus and a receiving method which are used with a computer, a television set, a settop box, an image recording/replaying device, etc., connected to a network and capable of receiving various data from the network, and outputting image data relating to the received data on a display. More particularly, the present invention relates to a receiving apparatus and a receiving method for streaming data through a network.
- With rapid progress of the technology of compressing moving pictures and voice data, the high-speed data transmission technology using xDSL, optical fiber, etc., and widespread infrastructures, streaming replay for sequentially replaying moving picture data and voice data on a server on the Internet (hereinafter referred to as streaming contents) while receiving the data over the network has made remarkable progress. In the streaming replay, a user can enjoy the streaming contents on the server at any time.
- On the other hand, as a broadcast system, a system of transmitting a program digest through a unicast at a request from a user on the sending side, and starting receiving program data transmitted through a broadcast after the transmission of the digest in the receiving side has been proposed (Japanese Patent Application Laid-open No. 2002-118553).
- There is also a system proposed for a case in which, when replaying of a recorded portion of contents is started while the contents are being recorded, the time to replay the recorded portion is shortened, and when the replaying of the recorded portion is finished, control is switched to replay the contents being broadcast (Japanese Patent Application Laid-open No. 2000-339857).
- When one of two pieces of image data which are related to each other is replayed and the other piece of image data is consecutively replayed thereafter, changeover from the former image to the latter image may not be performed smoothly, which may disturb a viewer to enjoy the images.
- The present invention aims at providing a viewer with a receiving apparatus and a receiving method capable of displaying smooth images by maintaining the continuity of replayed images when two pieces of image data related to each other are consecutively displayed on the same display.
- According to the present invention, the foregoing object is attained by providing a receiving apparatus, comprising:
- a reception unit capable of independently receiving information data and partial data related to the information data;
- an information processing unit which processes the received data, generates image data corresponding to the received data, and outputs the image data to a display unit; and
- a controller which controls the information processing unit to process the partial data, and controls the reception unit to start receiving the information data before output of image data corresponding to the partial data to the display unit is completed,
- wherein the controller controls output of the information processing unit such that image data displayed on the display unit is switched to image data corresponding to the information data from image data corresponding to the partial data after reception of the information data is started.
- According to the present invention, the foregoing object is also attained by providing a receiving method comprising:
- receiving partial data related to information data;
- generating image data corresponding to the partial data by sequentially processing the received partial data and outputting the image data to a display unit;
- starting reception of the information data before output of the image data corresponding to the partial data to the display unit is completed;
- generating image data corresponding to the information data by processing the received information data; and
- switching image data to be displayed on the display unit to the image data corresponding to the information data from the image data corresponding to the partial data after the reception of the information data is started.
- According to the present invention, the foregoing object is also attained by providing a receiving apparatus, comprising:
- a reception unit which receives a plurality of information data streams through a network;
- an information processing unit which generates image data corresponding to the information data stream by processing the information data, and outputting the image data to a display unit;
- a generation unit which receives partial data of a plurality of information data streams through the reception unit, and generates a composite stream formed by plural pieces of received partial data;
- an accumulation unit which accumulates the composite stream generated by the generation unit;
- an instruction unit which selects one of the plurality of information data streams, and designates reception of the selected information data stream; and
- a controller which reads partial data corresponding to the information data stream designated by the instruction unit from the composite stream accumulated in the accumulation unit, outputs the read data to the information processing unit, and outputs the processed partial data to the display unit.
- Other features and advantages of the present invention will be apparent from the following description taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof.
- The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
- FIG. 1 is an block diagram illustrating the entire configuration of the data receiving apparatus according to a first embodiment of the present invention;
- FIG. 2 shows the configuration of the entire system according to the first embodiment of the present invention;
- FIG. 3 shows the configuration of the operation unit shown in FIG. 1;
- FIG. 4 shows the configuration of the remote controller shown in FIG. 1;
- FIG. 5 is a flowchart of the operation of the data receiving apparatus according to the first embodiment of the present invention;
- FIG. 6 is a flowchart of the data distributing operation to the data receiving apparatus in a Web server;
- FIG. 7 is a flowchart of the process of configuring the zapping stream according to the first embodiment of the present invention;
- FIG. 8 is a flowchart of the data distributing operation to the data receiving apparatus in a contents distribution server;
- FIG. 9 shows an example of the portal screen according to the first embodiment of the present invention;
- FIG. 10 shows an example of the contents menu screen according to the first embodiment of the present invention;
- FIG. 11 shows the concept of configuration of the zapping stream according to the first embodiment of the present invention;
- FIG. 12 shows an example of the zapping stream supplementary information data according to the first embodiment of the present invention;
- FIG. 13 shows an example of the contents menu screen displayed when the zapping stream is configured according to the first embodiment of the present invention;
- FIG. 14 shows an example of the contents menu screen displayed after the zapping stream has been configured according to the first embodiment of the present invention;
- FIG. 15 is a flowchart for explanation of the contents replay process according to the first embodiment of the present invention;
- FIG. 16 is a flowchart for explanation of the contents replay process according to the first embodiment of the present invention;
- FIG. 17 shows the concept of the zapping stream and the state of the content A data of the contents distribution server according to the first embodiment of the present invention;
- FIG. 18 is a schematic chart of the window display control status immediately before matching of a time-stamp according to the first embodiment of the present invention;
- FIG. 19 shows another concept of configuration of the zapping stream according to the first embodiment of the present invention;
- FIG. 20 shows the configuration of an operation unit according to a second embodiment of the present invention;
- FIG. 21 shows the configuration of a remote controller according to the second embodiment of the present invention;
- FIG. 22 is a flowchart of the operation of the data receiving apparatus according to the second embodiment of the present invention;
- FIG. 23 is a flowchart of the process of configuring the zapping stream according to a third embodiment of the present invention;
- FIG. 24 is a block diagram of the entire configuration of the data receiving apparatus according to a fourth embodiment of the present invention;
- FIG. 25 is a flowchart of the contents replay process according to the fourth embodiment of the present invention;
- FIG. 26 is a block diagram of the entire configuration of the data receiving apparatus according to a fifth embodiment of the present invention; and
- FIG. 27 is a flowchart of the contents replay process according to the fifth embodiment of the present invention.
- Preferred embodiments of the present invention will be described in detail in accordance with the accompanying drawings.
- FIG. 1 is a block diagram illustrating the entire configuration of the data receiving apparatus according to the first embodiment of the present invention.
- In FIG. 1, a network200 (the Internet according to the first embodiment of the present invention) transmits streaming contents information, streaming contents, etc. A
data receiving apparatus 201 comprises acommunications control unit 100 for communications with thenetwork 200, abuffer 101, anaccumulation unit 102, a streamingcontents reconfiguration unit 103, aCPU 104, avideo decoder 105, avoice decoder 106, ascreen configuration unit 107, adisplay control unit 108, avoice control unit 109, anoperation unit 110, aphotoreceiver 111, animage display unit 113, avoice output unit 114, acontrol bus 115, acursor control unit 116, a decoderswitch control unit 117, asynchronous control unit 118, and abuffer control unit 121. Thevideo decoder 105 comprises afirst video decoder 105 a and asecond video decoder 105 b. Theimage display unit 113 comprises afirst window 113 a and asecond window 113 b. Aremote controller 112 is for remotely operating adata receiving apparatus 201. - FIG. 2 shows the configuration of the entire system according to the first embodiment of the present invention. In FIG. 2, the
Internet 200 transmits streaming contents information, streaming contents, etc. as described above. Thedata receiving apparatus 201 having the configuration shown in FIG. 1 receives streaming contents information and streaming contents through theInternet 200. AWeb server 202 distributes streaming contents information to thedata receiving apparatus 201 through theInternet 200. Acontents distribution server 203 distributes streaming contents to thedata receiving apparatus 201 through theInternet 200. Actually, a plurality ofWeb servers 202 andcontents distribution servers 203 are arranged on theInternet 200. - With the above-mentioned configuration, the
communications control unit 100 communicates data with theWeb server 202 and thecontents distribution server 203 through theInternet 200. Abuffer control unit 121 controls buffering to thebuffer 101 of plural pieces of streaming contents data from thecommunications control unit 100 and theaccumulation unit 102. Thebuffer 101 temporarily buffers plural pieces of streaming contents data. It should be noted that thecommunications control unit 100, thebuffer control unit 121, thebuffer 101, and theaccumulation unit 102 can collectively form a communications unit. - The decoder
switch control unit 117 switches the data destination (thefirst video decoder 105 a or thesecond video decoder 105 b) of the data from thebuffer 101 to the video-decoder 105. Thevideo decoder 105 has the capability of simultaneously decoding a plurality of streaming contents using thefirst video decoder 105 a and thesecond video decoder 105 b. Thedisplay control unit 108 controls for display of plural pieces of decoded contents data from thevideo decoder 105 in a plurality of display windows (thefirst windows image display unit 113. - The
video decoder 105, thedisplay control unit 108, the decoderswitch control unit 117, etc. form an information processing unit. - The
control bus 115 is a bus line for use by theCPU 104 controlling each function block shown in FIG. 1. Theaccumulation unit 102 accumulates a zapping stream generated by the streamingcontents reconfiguration unit 103. The streamingcontents reconfiguration unit 103 configures a zapping stream from a plurality of received streaming contents. TheCPU 104 as a control unit controls each block in thedata receiving apparatus 201 through thecontrol bus 115. Thesynchronous control unit 118 is described later. Theoperation unit 110 is provided with a button, etc. for performing an operation of the data receiving apparatus by a user, and is explained below by referring to FIG. 3. - FIG. 3 shows the configuration of the
operation unit 110. FIG. 4 shows the configuration of theremote controller 112. - FIG. 3 shows a
main power button 301, apower button 302, aset button 303,cursor buttons 304, areplay button 306, astop button 307, aportal button 311, a channel up/downbutton 312, and a ten-key 313. FIG. 4 shows atransmission unit 401, apower button 402, aset button 403,cursor buttons 404, areplay button 406, astop button 407, aportal button 411, a channel up/downbutton 412, and a ten-key 413. - In FIGS. 3 and 4, the same names refer to the same functions. A signal indicating each button operation using the
remote controller 112 by a user is received by thephotoreceiver 111 of thedata receiving apparatus 201 through thetransmission unit 401 shown in FIG. 4. - The
main power button 301 shown in FIG. 3 is a button for control of the energization of each block in thedata receiving apparatus 201 shown in FIG. 1. When themain power button 301 is turned on, thecommunications control unit 100, thebuffer control unit 121, thebuffer 101, theaccumulation unit 102, the streamingcontents reconfiguration unit 103, theCPU 104, theoperation unit 110, and thephotoreceiver 111 are energized. Thepower button 302 shown in FIG. 3 and thepower button 402 shown in FIG. 4 are also the buttons for control of the energization of each block in thedata receiving apparatus 201 shown in FIG. 1. When thepower button main power button 301 placed in the on state, the decoderswitch control unit 117, thevideo decoder 105, thevoice decoder 106, thescreen configuration unit 107, thedisplay control unit 108, thevoice control unit 109, theimage display unit 113, thevoice output unit 114, thecursor control unit 116, and thesynchronous control unit 118 are energized. Theremote controller 112 is operated independent of thedata receiving apparatus 201 by power supply means such as batteries, etc. - FIG. 5 is a flowchart of the operation of the
data receiving apparatus 201 according to the first embodiment of the present invention. FIG. 6 is a flowchart of the data distributing operation to thedata receiving apparatus 201 in aWeb server 202. FIG. 7 is a flowchart of the process of configuring a zapping stream. FIG. 8 is a flowchart of the data distributing operation to thedata receiving apparatus 201 in acontents distribution server 203. The operations and processes are described below by following the flowcharts in FIGS. 5 to 8, and by referring to FIGS. 1 to 4. - When a user presses the
portal button power button CPU 104 controls thecommunications control unit 100 through thecontrol bus 115, connects it to theWeb server 202 in theInternet 200, and makes a data request for portal screen data of the streaming contents (step S502). - The
Web server 202 receives the data request from the data receiving apparatus 201 (YES in step S601 shown in FIG. 6), recognizes it as a request for portal screen data (YES in step S602), and transmits the requested portal screen data in step S603. The data distributed from theWeb server 202 is described in the page description language such as the xHTML, etc. - The
data receiving apparatus 201 awaits the portal screen data in-step S505, and receives the portal screen data transmitted from theWeb server 202. - Control is passed to step S506 when the portal screen data is received, and the
CPU 104 transmits the received data to thescreen configuration unit 107 which forms the screen data to be displayed on theimage display unit 113, and the formed screen data is displayed on theimage display unit 113 through thedisplay control unit 108. FIG. 9 shows an example of the display screen based on the screen data formed by thescreen configuration unit 107. While watching the portal screen to the streaming contents, the user can select a desired category of contents. In FIG. 9, acursor 601 is configured and controlled by thecursor control unit 116. Thecursor 601 can be moved by the operation of thecursor buttons cursor buttons cursor 601 can be moved from the current “recommended contents” position to the “movie” position. - In step S507, upon receipt of an operation event by a user on the
cursor buttons set button operation unit 110 or theremote controller 112, theCPU 104 discriminates the received event, that is, recognizes it as a movement of the cursor in the vertical direction or in the horizontal direction, a press of theset button image display unit 113 through thecursor control unit 116, thescreen configuration unit 107, thedisplay control unit 108, and theimage display unit 113. In step S508, it is determined whether or not the received event is a press on theset button - In step S509, the contents menu screen data selected in steps S507 and S508 is requested by the operation of the equipment control task different from the operation in steps S507 and S508. That is, the position of the
cursor 601 shown in FIG. 9 is linked with the request for the contents menu screen data requested in step S509. For example, in the cursor display position shown in FIG. 9, theWeb server 202 is requested for the contents menu screen data relating to the “recommended contents”. - The
Web server 202 receives the data request from the data receiving apparatus 201 (YES in step S601 shown in FIG. 6). If it recognizes the received request as a request for the contents menu screen data (YES in step S604), then transmits the requested contents menu screen data in step S605. - The
data receiving apparatus 201 awaits the contents menu screen data in step S512, and receives the contents menu screen data transmitted from theWeb server 202. - Upon receipt of the contents menu screen data, control is passed to step S513, and the
CPU 104 transmits the received data to thescreen configuration unit 107 which configures the screen data to be displayed on theimage display unit 113, and the configured screen data is displayed on theimage display unit 113 through thedisplay control unit 108. FIG. 10 shows an example of a display of a contents menu screen displayed when theset button cursor 601 is in the position shown in FIG. 9. - In FIG. 10, a
cursor 701 is configured and controlled by thecursor control unit 116. Astill image 702 corresponds to one scene of each content. Acontent name 703 is the name of each content.Introductory text 704 describes each content. A user can roughly select desired contents while watching the menu screen of the streaming contents. Achannel number 705 is assigned to each streaming content in thedata receiving apparatus 201. For example, content A is assigned ch1, content B is assigned ch3, content I is assigned ch9, and content J is assigned ch10. - A user can select a desired streaming content by pressing the
set button operation unit 110 or theremote controller 112 when the cursor is at the corresponding position. The desired streaming contents can be also selected by pressing the ten-key - In step S516, the related information about the contents displayed on the contents menu screen is requested.
- The
Web server 202 receives a data request from the data receiving apparatus 201 (YES in step S601 shown in FIG. 6), recognizes it as a request for the contents related information (YES in step S606), and transmits the requested contents related information in step S607. - The contents related information transmitted from the
Web server 202 necessarily includes the URL (uniform resource locator) containing the streaming contents. Depending on the contents, a URL can include the information such as: - Description about the title of the streaming contents
- Description about the streaming contents
- Category to which the streaming contents belong
- Replay time of the streaming contents
- Bit rate of the streaming contents
- The
data receiving apparatus 201 awaits the contents related information in step S519, and receives the contents related information transmitted from theWeb server 202. For example, in the screen display state shown in FIG. 10, ten contents (content A, content B, . . . , content I, content J) are displayed. In this case, ten pieces of contents related information are acquired. - When all contents related information is acquired, the
CPU 104 of thedata receiving apparatus 201 analyzes all of the acquired contents related information (step S520), and detects the URL information about the location of each streaming content. After analyzing all contents related information, the zapping stream, which is the feature of the present invention, is configured according to the detected URL information (step S525). - The process of configuring the zapping stream performed in step S525 is explained below by referring to the flowchart shown in FIG. 7. The configuration of the zapping stream is performed by the streaming
contents reconfiguration unit 103. - In step S700 shown in FIG. 7, the streaming
contents reconfiguration unit 103 selects contents data to be acquired according to the URL information detected in the analysis of the contents related information performed by theCPU 104 in step S520, and issues a data acquire instruction to theCPU 104. In the case shown in FIG. 10, a data acquisition instruction is issued for the contents A to J. These contents are located in anaccumulation unit 800 of thecontents distribution server 203 as shown in FIG. 11. - In step S701, the
CPU 104 issues a contents data request to thecontents distribution server 203 in response to the data acquisition instruction from the streamingcontents reconfiguration unit 103. - Each time the
contents distribution server 203 receives a request from the data receiving apparatus 201 (YES in step S801 of FIG. 8), it transmits the requested data in step S802. - The streaming
contents reconfiguration unit 103 of thedata receiving apparatus 201 awaits the contents data from thecontents distribution server 203 in step S702, and control is passed to step S703 when it receives the data. Data request in step S701 and data reception in step S702 are repeatedly performed until the amount of received data of each streaming content reaches a predetermined amount (until YES in step S703). The amount of data acquired from each streaming content for configuration of the zapping stream is, for example, 6 Mbytes for each content. In the screen display state shown in FIG. 10, ten contents A to J are displayed, and the amount of data is 6 Mbytes for each of the contents A to J. FIG. 11 shows this concept. The contents A to J are stored in theaccumulation unit 800 of thecontents distribution server 203. - If it is determined that the predetermined amount (for example, 6 Mbytes as described above) has been reached, the data requesting operation is temporarily stopped in step S704. Then, in step S705, it is determined whether or not the configuration of the zapping stream has been completed. The completion of the configuration of the zapping stream is, when the image as shown in FIG. 10 is displayed, to receive all 6-Mbyte parts (partial data A′ to J′) from the contents A to J as shown in FIG. 11, and store them in the
accumulation unit 102. The group of the partial data A′ to J′ is azapping stream 811. Therefore, the operations in steps S701 to S705 are repeated until the configuration of the zapping stream contents is completed. - After the completion of the configuration of the zapping stream (YES in step S705),
supplementary information 812 relating to the configured zapping stream is generated in step S706. FIG. 12 shows an example of the zapping stream supplementary information. Thesupplementary information 812 is formed by the contents menu data acquired in step S512 shown in FIG. 5, the contents related information acquired in step S519, and the header information about the streaming contents acquired in step S702 shown in FIG. 7, and described in the XML (extensible Markup Language). From thesupplementary information 812, it is possible to identify the following information about the configured zapping stream: - Name assigned to the configured zapping stream (data described in the tag in FIG. 12);
- Number of streaming contents forming a zapping stream (data described in the tag in FIG. 12);
- File size of a zapping stream (unit: byte) (data described in the tag in FIG. 12); and
- Valid time of a zapping stream (unit: second) (data described in the tag in FIG. 12);
- or the information about each of the original streaming contents forming the zapping stream including:
- Index number (hexadecimal value) representing the position in the zapping stream (data described in the tag in FIG. 12);
- Name of the original streaming content (data described in the tag in FIG. 12);
- Description of the original streaming content (data described in the tag in FIG. 12);
- Category of the original streaming content (data described in the tag in FIG. 12);
- Bit rate of the original streaming content (data described in the tag in FIG. 12);
- URL of the original streaming content (data described in the tag in FIG. 12); and
- Size of the file received from the original streaming content (data described in the tag in FIG. 12).
- After the completion of the generation of the
supplementary information 812 relating to the zapping stream, the streamingcontents reconfiguration unit 103 stores the configuredsupplementary information 812 together with thezapping stream 811 in theaccumulation unit 102 in step S707. The storage medium used as theaccumulation unit 102 can be a magnetic storage medium such as a hard disk, etc. or a volatile storage medium such as a large capacity DRAM, etc. - During the configuration of the zapping stream as described above, the user can be notified of the configuration. FIG. 13 shows an example of the displayed screen. In an
area 1100, the progress of the configuration of the zapping stream and the time taken to complete the configuration of the zapping stream are displayed. After the zapping stream has been completely configured, amessage 1200 notifying that the configuration of the zapping stream has been completed is displayed as shown in FIG. 14. In the example shown in FIG. 14, the notification to the user is made using a text message, but an icon can be displayed to represent the similar meaning. - When the zapping stream configuring process is completed in step S525 shown in FIG. 5, the contents replay process is performed instep S526.
- The contents replay process performed in step S526 is described below by referring to the flowcharts shown in FIGS. 15 and 16.
- In step S101, when the user operates the button of the
operation unit 110 or theremote controller 112 while watching the contents menu screen such as the one shown in FIG. 10 or 14, thedata receiving apparatus 201 receives an operation event, and theCPU 104 determines in step S102 whether the received event refers to a press of theset button replay button key button image display unit 113 through thecursor control unit 116, thescreen configuration unit 107, and thedisplay control unit 108, control is returned to step S101, and the next event is awaited. If YES in step S102, then the contents to be replayed have been selected, and control is passed to step S103. - In step S103, counting the continuous service hour for the selected contents is started. Then, in step S104, the
CPU 104 reads thesupplementary information 812 and thezapping stream 811 configured as described above and stored in theaccumulation unit 102. According to thesupplementary information 812 stored in theaccumulation unit 102, a file position of a desired contents stream in theaccumulation unit 102 is obtained and the replay of the contents in the position is started. The zapping stream data read from theaccumulation unit 102 is transmitted to thevideo decoder 105 and thevoice decoder 106, and the data is decoded. The video data is output through thedisplay control unit 108 and theimage display unit 113, and the voice data is output through thevoice control unit 109 and the voice output unit 114 (step S105). - In step S106, it is determined-whether or not the continuous service hour has exceeded the predetermined time T1. If yes, control is passed to the process shown in FIG. 16. If not, control is passed to step S107. The predetermined time T1 is set shorter than the replay end time of the 6-Mbyte data portion of each content of the
zapping stream 811 because a preparation period is required before completing the replay of 6-Mbyte data to switch the display to data acquired from thecontents distribution server 203 when the content is continuously watched. - In step S107, it is determined whether or not the operations of various buttons of the
operation unit 110 or theremote controller 112 have been performed. If not, control is returned to step S104, and the replay of the contents being replayed is continued. On the other hand, if any operation has been performed, then it is determined in step S108 whether or not the operation is a press of thestop button stop button key button - The case in which the continuous service hour has exceeded the predetermined time T1 (YES in step S106) is explained below by referring to the flowchart shown in FIG. 16. An example of the case in which a replay is started in the cursor display position (in the state of selecting “content A”) shown in FIG. 10 is explained below.
- In step S106 shown in FIG. 15, if it is determined that the continuous service hour has exceeded the predetermined time T1, it is considered that the streaming contents (information data) beyond the data portion (partial data A′ shown in FIG. 11) of the
zapping stream 811 can be continuously watched, and control is passed to the process in FIG. 16. TheCPU 104 checks the load of the decoding operation of thevideo decoder 105 in step S202. In step S202, whether or not thevideo decoder 105 can decode the streaming contents of the content A to be received hereinafter is checked. - If one of the
first video decoder 105 a and thesecond video decoder 105 b of the video decoder 105 (let us assume thefirst video decoder 105 a) decodes the partial data A′ of thezapping stream 811, and the other (thesecond video decoder 105 b) is not decoding data, then it is determined in step S203 that the data can be decoded additionally. - If it is determined that the data can be further decoded, then the
CPU 104 instructs thecommunications control unit 100 to start receiving data in step S204. Thus, thecommunications control unit 100 issues a transmission request for the content A (information data) from the point corresponding to the partial data A′ being replayed, to thecontents distribution server 203. Upon receipt of the transmission request, thecontents distribution server 203 starts transmitting data to thedata receiving apparatus 201, and thedata receiving apparatus 201 receives data by thecommunications control unit 100. FIG. 17 is a view showing thezapping stream 118 and the concept of the state of the data of the content A of thecontents distribution server 203, and shows the state of starting the distribution of the content A if the time T1 has passed. - The data received by the
communications control unit 100 is temporarily buffered in an area of thebuffer 101 assigned for contents data additionally received from thecontents distribution server 203 for continuous replay of the remaining data (information data) of and after the partial data accumulated for a zapping stream by thebuffer control unit 102. The buffered data is transmitted to thevideo decoder 105 through the decoderswitch control unit 117. - In step S205, the decoder
switch control unit 117 switches the input data for a plurality of decoders (first video decoder 105 a andsecond video decoder 105 b) in thevideo decoder 105. As described above, when the partial data A′ of thezapping stream 811 is decoded by thefirst video decoder 105 a, and the streaming contents (content A) being received is decoded by thesecond video decoder 105 b, the data buffered in thebuffer 101 is transmitted to thesecond video decoder 105 b. The data decoded by the first andsecond video decoders display control unit 108. - In step S206, the
synchronous control unit 118 acquires the time-stamp information contained in each piece of contents data decoded by thedecoders video decoder 105, and compares the time-stamp values. A time stamp refers to time information used in synchronously outputting video data and voice data in streaming contents. The operations in steps S204 to S207 are repeated until the time-stamp values match (until YES in step S207). When the time-stamp values match, control is passed to step S208. In FIG. 17, it is represented by the time T2. - FIG. 18 is a schematic chart showing a window display control state immediately before the matching of time-stamp values in step S207.
- FIG. 18 shows a displayed
picture 900 in thefirst window 113 a, a displayedpicture 901 in thesecond window 113 b, coordinates 902 of the upper left corner of thefirst window 113 a, coordinates 903 of the upper left corner of thesecond window 113 b, coordinates 904 of the upper right corner of thefirst window 113 a, coordinates 905 of the upper right corner of thesecond window 113 b, coordinates 906 of the lower left corner of thefirst window 113 a, coordinates 907 of the lower left corner of thesecond window 113 b, and coordinates 908 of the lower right corner of thefirst window 113 a. - The coordinate positions on the display screen of the
coordinates 902 of the upper left corner of thefirst window 113 a and thecoordinates 903 of the upper left corner of thesecond window 113 b are the same. Similarly, the coordinates positions on the display screen of thecoordinates 904 of the upper right corner of thefirst window 113 a and thecoordinates 905 of the upper right corner of thesecond window 113 b, the coordinates positions of thecoordinates 906 of the lower left corner of thefirst window 113 a and thecoordinates 907 of the lower left corner of thesecond window 113 b, and the positions of thecoordinates 908 of the lower right corner of thefirst window 113 a and the coordinates of the lower right corner (not shown) of thesecond window 113 b are the same. That is, the display position of the displayedpicture 900 of thefirst window 113 a completely overlaps the displayedpicture 901 of thesecond window 113 b, and the priority of thefirst window 113 a is set higher at this stage. Therefore, from the user, only the displayedpicture 900 of thefirst window 113 a, that is, the image acquired by decoding the data of thezapping stream 811 can be watched. - When the time-stamp value match each other, control is passed to step S208, and the
CPU 104 controls the decoderswitch control unit 117. Thus, the display priorities are exchanged between the displayedpicture 900 of thefirst window 113 a and the displayedpicture 901 of thesecond window 113 b. With this control, the user can watch only the displayedpicture 901 of thesecond window 113 b. Thus, the data of the zapping stream 811 (for example, the partial data such as the picture at the commencement of a program) and the data of the streaming contents being received from thecontents distribution server 203 and replayed (information data related to the partial data, for example, the information data such as a picture in and after the commencement of the program) can be smoothly exchanged. Subsequently, the data of the streaming contents from thecontents distribution server 203 is displayed. - On the other hand, the case in which it is determined in the check of the load of the decoder in step S202 that the data cannot be additionally decoded is described. For example, the case can be set such that another application in the
data receiving apparatus 201 according to the first embodiment decodes the other contents stored in theaccumulation unit 102 using thefirst video decoder 105 a, and the zapping stream is decoded by thesecond video decoder 105 b, etc. - If it is determined in step S203 that the data cannot be additionally decoded, then, in step S209, a request to transmit data of the content A is issued to the
contents distribution server 203, and thecontents distribution server 203 starts transmitting data to thedata receiving apparatus 201, and thedata receiving apparatus 201 receives data by thecommunications control unit 100. The data received by thecommunications control unit 100 is temporarily stored in thebuffer 101 through thebuffer control unit 121. - In step S210, the
synchronous control unit 118 acquires the time-stamp information contained in the data of the zapping stream and the time-stamp information contained in the contents data input to thebuffer control unit 121, and compares the time-stamp values. The operations in steps S209 to S211 are repeated until the time-stamp values match (until YES in step S211). When the time-stamp values match, control is passed to step S212. - In step S212, the decoder
switch control unit 117 switches the data to be transmitted to thevideo decoder 105 from the data of thezapping stream 811 to the contents data input from thebuffer 101, that is, the data of the content A received from thecontents distribution server 203 and buffered. With this control, the input data to thesecond video decoder 105 b is switched into the data of the content A, and the zapping stream and the streaming contents received from thecontents distribution server 203 and being replayed can be smoothly switched. - When a press of the
stop button operation unit 110 or theremote controller 112 during the operation shown in FIG. 16, the operation is interrupted at any time, control is passed to step S527 shown in FIG. 5. When the ten-key button - In the above-mentioned process, for example, if the user presses “+” of the channel up/down
button zapping stream 811, the data is switched to the partial data B′ of thezapping stream 811 corresponding to the content B. Subsequently, when the user presses “−” of the channel up/downbutton zapping stream 811. Thus, when contents is switched to other contents during the replay of a selected content, the streaming contents data after the switching of contents is not requested to theWeb server 202 and thecontents distribution server 203, but thezapping stream 811 is replayed from a file position where a partial data of the desired content is located according to the information in the zapping streamsupplementary information 812 stored in theaccumulation unit 102. Therefore, since the access time for communications of data with theWeb server 202 and thecontents distribution server 203 is not required, the contents to be watched can be smoothly and easily switched, thereby reducing the user discomfort. - Furthermore, as shown in FIG. 19, although the streaming contents contained in the category (FIG. 9) of the streaming portal are scattered in a plurality of contents distribution servers, the address of the request for the contents can be easily discriminated according to the URL information acquired in step S520 shown in FIG. 5. Therefore, the zapping stream can be configured in the same procedure shown in FIG. 7, and data can be replayed with the same effect as in acquiring the data from one contents distribution server.
- The operation of a contents up/down
button key zapping stream 811, and control is returned to the content A, a replay can be resumed from the point where the previous watching was interrupted if the two switching operations have been performed within a predetermined time. - Described below is the second embodiment of the present invention.
- The configuration of the entire data receiving apparatus and the system according to the second embodiment is the same as in the first embodiment described above by referring to FIGS. 1 and 2.
- FIGS. 20 and 21 show the configuration of the
operation unit 110 and theremote controller 112. They are different from FIGS. 3 and 4 in that the zappingbuttons - FIG. 22 is a flowchart of the operation of the
data receiving apparatus 201 according to the second embodiment of the present invention. - In the above-mentioned first embodiment, control is passed directly to step S516 and the zapping stream configuring operation is started immediately after configuring and displaying the contents menu screen in step S513 shown in FIG. 5. However, in the second embodiment, as shown in FIG. 22, after configuring and displaying the contents menu screen in step S513, a press of the
zapping button zapping button zapping button - Described below is the third embodiment of the present invention.
- The configuration of the data receiving apparatus and the entire system according to the third embodiment of the present invention is the same as that explained above in the first embodiment by referring to FIGS. 1 and 2.
- FIG. 23 is a flowchart of the zapping stream configuring process (process in step S525 shown in FIG. 5) performed by the
data receiving apparatus 201 according to the third embodiment of the present invention. - In the process shown in FIG. 7 according to the first embodiment, the amount of data acquired from each of the streaming contents A to J for configuration of a zapping stream is constant. In contrast, the third embodiment aims at setting a constant replay time of the partial data acquired from each of the streaming contents A to J. In FIG. 23, the process similar to that shown in FIG. 7 is assigned the same reference numeral, and the detailed explanation is omitted here.
- Upon receipt of the data from the
contents distribution server 203 in step S702, the streamingcontents reconfiguration unit 103 repeats requesting of data in step S701 and receiving of data in step S702 until the replay time of each streaming content received in step S903 reaches the amount of data corresponding to a predetermined replay time. In this case, the amount of received data can be determined according to the bit rate information contained in the received contents data or the bit rate information possibly contained in the contents related information data acquired in advance. For example, when the amount of data acquired from each of the streaming contents A to J for configuration of a zapping stream is set for three minutes, the time is divided by a bit rate to calculate the necessary amount of data, thereby making determination in step S903. - Described below is the fourth embodiment of the present invention.
- According to the fourth embodiment, another switch control is performed from the partial data of the zapping stream to the streaming contents distributed by the
contents distribution server 203. In the fourth embodiment, a low brightness level frame or a field is selected from the decoded zapping stream video data, and a timing of switching from the zapping stream to the streaming contents received from thecontents distribution server 203 is determined. - FIG. 24 is a block diagram of the entire configuration of the
data receiving apparatus 201′ according to the fourth embodiment of the present invention. It is different from FIG. 1 in that a video data detection/comparison unit 119 is added, but it is the same as FIG. 1 in the other components assigned the same reference numerals. The explanation of the same components is omitted here. - FIG. 25 shows the contents replay process according to the fourth embodiment of the present invention. Since the process performed when the continuous service hour is T1 or less is the same as that explained above by referring to FIG. 15, the explanation is omitted here.
- As explained above in step S106 shown in FIG. 15, if it is determined that the continuous service hour has exceeded a predetermined time T1, control is passed to the process shown in FIG. 25 by considering that the streaming contents beyond the data portion (for example, the partial data A′ shown in FIG. 11) of the
zapping stream 811 can be continuously watched. TheCPU 104 checks the load of the decoding operation of thevideo decoder 105 in step S202. In step S202, whether or not thevideo decoder 105 can decode the streaming contents of the content A to be received hereinafter is checked. - If one of the
first video decoder 105 a and thesecond video decoder 105 b of the video decoder 105 (let us assume thefirst video decoder 105 a) decodes the partial data A′ of thezapping stream 811, and the other (thesecond video decoder 105 b) is not decoding data, then it is determined in step S203 that the data can be decoded additionally. - If it is determined that the data can be additionally decoded, then decoding of the partial data A′ of the
zapping stream 811 is started using thesecond video decoder 105 b from the contents display switch probable point (for example, T2 shown in FIG. 17) in step S1100. - Then, in step S1101, the frame or filed of decoded video data is detected using the picture data detection/
comparison unit 119, and is compared with the video data in the preceding frame or field. The comparison of the video data is performed to detect a frame or a field of a lower brightness level. - In step S1102, if it is determined that the data of a newly detected frame or field is lower in brightness level than the picture data of the preceding frame of field, then the time-stamp value of the frame of field is stored in step S1103, and control is passed to step S1104. If it is not determined that the brightness level is lower, control is passed directly to step S1104.
- It is determined in step S1104 on the partial data (for example, the partial data A′) of the
zapping stream 811 at and after the contents switch probable point T2 whether or not the process of detecting the frame or field of partial data and comparing the data with the picture data of the previous frame or field has been completed. If not, then control is returned to step S1101, and the processes in steps S1101 to S1104 are repeated. If YES, then control is passed to step S1105. - In step S1105, the
contents distribution server 203 is requested to transmit the data of the content A from the point (for example, T1 shown in FIG. 17) corresponding to the partial data A′ being replayed. Upon receipt of the transmission request, thecontents distribution server 203 starts transmitting data to thedata receiving apparatus 201′, and thedata receiving apparatus 201′ receives data by thecommunications control unit 100. The data received by thecommunications control unit 100 is temporarily buffered in an area of thebuffer 101 assigned for contents data. - In step S1106, the decoder
switch control unit 117 switches the input data for a plurality of decoders (first video decoder 105 a andsecond video decoder 105 b) in thevideo decoder 105. As described above, when the partial data A′ of thezapping stream 811 is decoded by thefirst video decoder 105 a, and the streaming contents (content A) being received is decoded by thesecond video decoder 105 b, the data buffered in thebuffer 101 is transmitted to thesecond video decoder 105 b. The data decoded by the first andsecond video decoders video decoder 105 is transmitted to thedisplay control unit 108. - In step S1107, the
synchronous control unit 118 acquires the time-stamp information contained in each piece of contents data decoded by thedecoders video decoder 105, and compares the time-stamp information with the time-stamp value stored in step S1103. When the time-stamp values match, control is passed to step S208, and the display is switched. The switching control in step S208 is the same as that according to the first embodiment, and the detailed explanation is omitted here. - If it is determined in step S203 that the data cannot be further decoded, then the processes in steps S209 to 212 are performed as in the first embodiment explained by referring to FIG. 16.
- Thus, in the fourth embodiment, display windows can be more smoothly and less conspicuously switched at a timing of a frame or a field of a low brightness level.
- Described below is the fifth embodiment of the present invention.
- In the fifth embodiment, when streaming data to be processed is encoded in the MPEG2 or MPG4 systems, a movement vector contained in the picture data being decoded is detected and compared, a frame or a field having a smaller movement for each- frame or field is selected, and the timing of switching from the zapping stream to the streaming contents received from the
contents distribution server 203 is determined. - FIG. 26 is a block diagram of the entire configuration of the
data receiving apparatus 201″ according to the fifth embodiment of the present invention. It is different from FIG. 1 in that a movement detection/comparison unit 120 is added, but other configuration is the same as that shown in FIG. 1. Therefore, the same reference numerals are assigned, and the explanation is omitted here. - FIG. 27 shows the contents replay process according to the fifth embodiment. Since the process in which the continuous service hour is T1 or less is the same as that shown in FIG. 15, the explanation is omitted here.
- As explained above in step S106 shown in FIG. 15, if it is determined that the continuous service hour has exceeded the predetermined time T1, it is considered that the streaming contents (information data) beyond the data portion (partial data A′ shown in FIG. 11) of the
zapping stream 811 can be continuously watched, and control is passed to the process in FIG. 27. TheCPU 104 checks the load of the decoding operation of thevideo decoder 105 in step S202. In step S202, whether or not thevideo decoder 105 can decode the streaming contents of the content A to be received hereinafter is checked. - If one of the
first video decoder 105 a and thesecond video decoder 105 b of the video decoder 105 (let us assume thefirst video decoder 105 a) decodes the partial data A′ of thezapping stream 811, and the other (thesecond video decoder 105 b) is not decoding data, then it is determined in step S203 that the data can be decoded additionally. - If it is determined that the data can be additionally decoded, then decoding of the partial data A′ of the
zapping stream 811 is started using thesecond video decoder 105 b from the contents display switch probable point (for example, T2 shown in FIG. 17) in step S1300. - Then, in step S1301, a movement vector is detected using the frame or field of decoded video data and its preceding frame or field of video data, and is compared with a movement vector obtained in the preceding movement vector detection process by the movement detection/
comparison unit 120. The comparison of the video data is performed to detect a frame or a field of a lower movement vector. - In step S1302, if it is determined that the newly detected movement vector is smaller than the movement vector obtained in the preceding movement vector detection process, then the time-stamp value of the frame of field is stored in step S1303, and control is passed to step S1304. If it is not determined that the new movement vector is smaller, control is passed directly to step S1304.
- It is determined in step S1304 on the partial data (for example, the partial data A′) of the
zapping stream 811 at and after the contents switch probable point T2 whether or not the process of detecting and comparing movement vectors has been completed. If not, then control is returned to step S1301, and the processes in steps S1301 to S1304 are repeated. If YES, then control is passed to step S1305. - In step S1305, the
contents distribution server 203 is requested to transmit the data of the content A from the point (for example, T1 shown in FIG. 17) corresponding to the partial data A′ being replayed. Upon receipt of the transmission request, thecontents distribution server 203 starts transmitting data to thedata receiving apparatus 201″, and thedata receiving apparatus 201″ receives data by thecommunications control unit 100. The data received by thecommunications control unit 100 is temporarily buffered in an area of thebuffer 101 assigned for contents data. - In step S1306, the decoder
switch control unit 117 switches the input data for a plurality of decoders (first video decoder 105 a andsecond video decoder 105 b) in thevideo decoder 105. As described above, when the partial data A′ of thezapping stream 811 is decoded by thefirst Video decoder 105 a, and the streaming contents (content A) being received is decoded by thesecond video decoder 105 b, the data buffered in thebuffer 101 is transmitted to thesecond video decoder 105 b. The data decoded by the first andsecond video decoders video decoder 105 is transmitted to thedisplay control unit 108. - In step S1307, the
synchronous control unit 118 acquires the time-stamp information contained in each piece of contents data decoded by thedecoders video decoder 105, and compares the time-stamp information with the time-stamp value stored in step S1303. When the time-stamp values match, control is passed to step S208, and the display is switched. The switching control in step S208 is the same as that according to the first embodiment, and the detailed explanation is omitted here. - If it is determined in step S203 that the data cannot be further decoded, then the processes in steps S209 to 212 are performed as in the first embodiment by referring to FIG. 16.
- Thus, in the fifth embodiment, display windows can be more smoothly and less conspicuously switched at a timing of a frame or a field of a small movement.
- Furthermore, the invention can be implemented by supplying a software program, which implements the functions of the foregoing embodiments, directly or indirectly to a system or apparatus, reading the supplied program code with a computer of the system or apparatus, and then executing the program code. In this case, so long as the system or apparatus has the functions of the program, the mode of implementation need not rely upon a program.
- Accordingly, since the functions of the present invention are implemented by computer, the program code itself installed in the computer also implements the present invention. In other words, the claims of the present invention also cover a computer program for the purpose of implementing the functions of the present invention.
- In this case, so long as the system or apparatus has the functions of the program, the program may be executed in any form, e.g., as object code, a program executed by an interpreter, or scrip data supplied to an operating system.
- Example of storage media that can be used for supplying the program are a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a CD-RW, a magnetic tape, a non-volatile type memory card, a ROM, and a DVD (DVD-ROM and a DVD-R).
- As for the method of supplying the program, a client computer can be connected to a website on the Internet using a browser of the client computer, and the computer program of the present invention or an automatically-installable compressed file of the program can be downloaded to a recording medium such as a hard disk. Further, the program of the present invention can be supplied by dividing the program code constituting the program into a plurality of files and downloading the files from different websites. In other words, a WWW (World Wide Web) server that downloads, to multiple users, the program files that implement the functions of the present invention by computer is also covered by the claims of the present invention.
- Further, it is also possible to encrypt and store the program of the present invention on a storage medium such as a CD-ROM, distribute the storage medium to users, allow users who meet certain requirements to download decryption key information from a website via the Internet, and allow these users to decrypt the encrypted program by using the key information, whereby the program is installed in the user computer.
- Furthermore, besides the case where the aforesaid functions according to the embodiments are implemented by executing the read program by computer, an operating system or the like running on the computer may perform all or a part of the actual processing so that the functions of the foregoing embodiments can be implemented by this processing.
- Furthermore, after the program read from the storage medium is written to a function expansion board inserted into the computer or to a memory provided in a function expansion unit connected to the computer, a CPU or the like mounted on the function expansion board or function expansion unit performs all or a part of the actual processing so that the functions of the foregoing embodiments can be implemented by this processing.
- In the conventional streaming replay, when a large number of users access the same server to watch streaming contents on the server, the load of the data communications process increases at the server, and there is the possibility of interrupted data from the server.
- Additionally, when a user cannot easily select appropriate streaming contents from among a number of contents, the user watches the contents while switching (zapping) a plurality of streaming contents. In this case, the user feels discomfort when the zapping cannot be smoothly performed as in switching TV channels, a replay is interrupted for a long time, etc.
- Otherwise, also when a user frequently changes streaming contents in a plurality of servers to watch, the user may feel discomfort if the zapping cannot be smoothly performed as in switching TV channels because the access destinations (servers) which provide streaming contents data have to be switched each time the streaming contents are changed.
- According to the first to fifth embodiments described above in detail, all these problems can be solved.
- It should be noted that, in the above-mentioned embodiments, partial data and information data are represented by data of a series of programs having continuous portions in time such as a part of pictures in a program and the remaining parts of pictures. However, any partial data and information data which are related to each other can be applied to the present invention.
- As many apparently widely different embodiments of the present invention can be made without departing from the spirit and scope thereof, it is to be understood that the invention is not limited to the specific embodiments thereof except as defined in the appended claims.
Claims (11)
1. A receiving apparatus, comprising:
a reception unit capable of independently receiving information data and partial data related to the information data;
an information processing unit which processes the received data, generates image data corresponding to the received data, and outputs the image data to a display unit; and
a controller which controls said information processing unit to process the partial data, and controls said reception unit to start receiving the information data before output of image data corresponding to the partial data to said display unit is completed,
wherein said controller controls output of said information processing unit such that image data displayed on said display unit is switched to image data corresponding to the information data from image data corresponding to the partial data after reception of the information data is started.
2. A receiving method comprising:
receiving partial data related to information data;
generating image data corresponding to the partial data by sequentially processing the received partial data and outputting the image data to a display unit;
starting reception of the information data before output of the image data corresponding to the partial data to said display unit is completed;
generating image data corresponding to the information data by processing the received information data; and
switching image data to be displayed on said display unit to the image data corresponding to the information data from the image data corresponding to the partial data after the reception of the information data is started.
3. The receiving method according to claim 2 , wherein the reception of the information data is started after a predetermined time has passed since output of the image data corresponding to the partial data to said display unit is started.
4. The receiving method according to claim 2 , further comprising:
decoding the received partial data; and
decoding the received information data,
wherein in said switching, output to said display unit is switched depending on a state of an operation of decoding the partial data and information data.
5. The receiving method according to claim 4 , wherein in said switching, output to said display unit is switched from the image data corresponding the decoded partial data to the image data corresponding to the decoded information data.
6. The receiving method according to claim 4 , wherein in said switching, output to said display unit is switched by switching input to a decoding unit from the partial data to the information data.
7. The receiving method according to claim 2 , wherein in said switching, output to said display unit is switched depending on a matching state between a time-stamp of the partial data and a time-stamp of the information data.
8. The receiving method according to claim 2 , wherein in said switching, output to said display unit is switched at a timing when brightness of the image data corresponding to the partial data indicates a minimum value and/or a smallest value.
9. The receiving method according to claim 2 , wherein in said switching, output to said display unit can be switched depending on a timing of a movement of image data corresponding to the partial data being minimum and/or small.
10. The receiving method according to claim 2 , further comprising:
accumulating plural pieces of the received partial data each of which is a part of each of plural pieces of information data whose contents are different from each other;
outputting and displaying plural pieces of image data corresponding to the plural pieces of accumulated partial data; and
starting, in response to selection of at least one of the plural pieces of displayed image data, reception of the information data partly formed by the partial data corresponding to the selected image data.
11. A receiving apparatus, comprising:
a reception unit which receives a plurality of information data streams through a network;
an information processing unit which generates image data corresponding to the information data stream by processing the information data, and outputting the image data to a display unit;
a generation unit which receives partial data of a plurality of information data streams through said reception unit, and-generates a composite stream formed by plural pieces of received partial data;
an accumulation unit which accumulates the composite stream generated by said generation unit;
an instruction unit which selects one of said plurality of information data streams, and designates reception of the selected information data stream; and
a controller which reads partial data corresponding to the information data stream designated by said instruction unit from the composite stream accumulated in said accumulation unit, outputs the read data to said information processing unit, and outputs the processed partial data to said display unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/179,689 US8074244B2 (en) | 2002-11-29 | 2008-07-25 | Receiving apparatus and method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002348722 | 2002-11-29 | ||
JP2002-348722 | 2002-11-29 | ||
JP2003349769A JP4408677B2 (en) | 2002-11-29 | 2003-10-08 | Receiving apparatus and receiving method |
JP2003-349769 | 2003-10-08 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/179,689 Division US8074244B2 (en) | 2002-11-29 | 2008-07-25 | Receiving apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040117830A1 true US20040117830A1 (en) | 2004-06-17 |
Family
ID=32510592
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/717,560 Abandoned US20040117830A1 (en) | 2002-11-29 | 2003-11-21 | Receiving apparatus and method |
US12/179,689 Expired - Fee Related US8074244B2 (en) | 2002-11-29 | 2008-07-25 | Receiving apparatus and method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/179,689 Expired - Fee Related US8074244B2 (en) | 2002-11-29 | 2008-07-25 | Receiving apparatus and method |
Country Status (2)
Country | Link |
---|---|
US (2) | US20040117830A1 (en) |
JP (1) | JP4408677B2 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050044112A1 (en) * | 2003-08-19 | 2005-02-24 | Canon Kabushiki Kaisha | Metadata processing method, metadata storing method, metadata adding apparatus, control program and recording medium, and contents displaying apparatus and contents imaging apparatus |
US20050091700A1 (en) * | 2003-10-22 | 2005-04-28 | Canon Kabushiki Kaisha | Data receiving-processing apparatus |
US20050130613A1 (en) * | 2003-12-11 | 2005-06-16 | Canon Kabushiki Kaisha | Program selecting apparatus |
US20050160462A1 (en) * | 2003-12-11 | 2005-07-21 | Canon Kabushiki Kaisha | Signal generating method, program, and storing apparatus for automatically storing broadcast programs |
US20050166242A1 (en) * | 2003-12-15 | 2005-07-28 | Canon Kabushiki Kaisha | Visual communications system and method of controlling the same |
US20060239299A1 (en) * | 2004-01-08 | 2006-10-26 | Albrecht Scheid | Extra error correcting method for zapping stream ts packet |
US20060285034A1 (en) * | 2005-06-15 | 2006-12-21 | Canon Kabushiki Kaisha | Image Display Method and Image Display Apparatus |
US20060284810A1 (en) * | 2005-06-15 | 2006-12-21 | Canon Kabushiki Kaisha | Image Display Method and Image Display Apparatus |
US20070188659A1 (en) * | 2006-02-13 | 2007-08-16 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
US20080178217A1 (en) * | 2003-06-20 | 2008-07-24 | Canon Kabushiki Kaisha | Image Display Method and Program |
US20090116821A1 (en) * | 2005-08-15 | 2009-05-07 | Canon Kabushiki Kaisha | Reproduction control method, reproduction apparatus, and television set |
US20090168902A1 (en) * | 2005-04-06 | 2009-07-02 | Matsushita Electric Industrial Co., Ltd. | Method for arranging zapping streams in mpe-fec frame and receiver |
US7716696B2 (en) | 2003-12-15 | 2010-05-11 | Canon Kabushiki Kaisha | Television receiver, information processing method and program |
US20100238996A1 (en) * | 2007-11-16 | 2010-09-23 | Panasonic Corporation | Mobile terminal and video output method |
CN104035674A (en) * | 2014-05-23 | 2014-09-10 | 小米科技有限责任公司 | Picture displaying method and device |
CN106648320A (en) * | 2016-12-20 | 2017-05-10 | 天脉聚源(北京)传媒科技有限公司 | Method and device for dynamic prompt of picture polling display |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006027846A1 (en) * | 2004-09-10 | 2006-03-16 | Matsushita Electric Industrial Co., Ltd. | Zapping stream generating apparatus and method |
JP4534997B2 (en) * | 2006-02-13 | 2010-09-01 | ソニー株式会社 | Transmission / reception system, reception apparatus, and reception method |
FR2898236A1 (en) * | 2006-03-03 | 2007-09-07 | Thomson Licensing Sas | METHOD OF TRANSMITTING AUDIOVISUAL FLOWS BY ANTICIPATING CONTROLS OF THE USER, RECEIVER AND TRANSMITTER FOR IMPLEMENTING THE METHOD |
JP5505591B2 (en) * | 2006-11-28 | 2014-05-28 | 日本電気株式会社 | Moving image distribution system, moving image distribution apparatus, and moving image distribution method |
JP2008252476A (en) * | 2007-03-30 | 2008-10-16 | Nec Personal Products Co Ltd | Digital broadcasting receiver |
JP5101938B2 (en) * | 2007-07-05 | 2012-12-19 | 株式会社 エヌティーアイ | Client device, content reception method, management device, content distribution management method, program |
JP5230267B2 (en) * | 2008-05-27 | 2013-07-10 | キヤノン株式会社 | Device control apparatus and control method |
JP5243871B2 (en) * | 2008-07-18 | 2013-07-24 | シャープ株式会社 | Video playback device |
JP2010187206A (en) * | 2009-02-12 | 2010-08-26 | Canon Inc | Video recording and playing apparatus and control method therefor |
JP6253036B2 (en) * | 2016-03-31 | 2017-12-27 | シャープ株式会社 | Content processing apparatus, television receiving apparatus, information processing method and program in content processing apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5933192A (en) * | 1997-06-18 | 1999-08-03 | Hughes Electronics Corporation | Multi-channel digital video transmission receiver with improved channel-changing response |
US6115080A (en) * | 1998-06-05 | 2000-09-05 | Sarnoff Corporation | Channel selection methodology in an ATSC/NTSC television receiver |
US20020019982A1 (en) * | 2000-08-10 | 2002-02-14 | Shuntaro Aratani | Data processing apparatus, data processing system, television signal receiving apparatus, and printing apparatus |
US20020021373A1 (en) * | 2000-08-04 | 2002-02-21 | Yoshikazu Shibamiya | Signal receiving apparatus, remote controller, signal receiving system, and apparatus to be controlled |
US20020089610A1 (en) * | 2000-12-26 | 2002-07-11 | Tomoyuki Ohno | Broadcast receiver, broadcast reception method, digital TV broadcast receiver, external terminal, broadcast receiver control system, and storage medium |
US20020138829A1 (en) * | 2001-03-06 | 2002-09-26 | Canon Kabushiki Kaisha | Receiving apparatus and method thereof, and storage medium therefor |
US20050081244A1 (en) * | 2003-10-10 | 2005-04-14 | Barrett Peter T. | Fast channel change |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2989680B2 (en) * | 1991-02-15 | 1999-12-13 | 株式会社山田製作所 | Tilt and telescopic steering system |
US6611607B1 (en) * | 1993-11-18 | 2003-08-26 | Digimarc Corporation | Integrating digital watermarks in multimedia content |
JP3371186B2 (en) * | 1995-11-27 | 2003-01-27 | ソニー株式会社 | Video data distribution system and video data receiving device |
ES2266396T3 (en) * | 1997-02-14 | 2007-03-01 | The Trustees Of Columbia University In The City Of New York | AUDIO TERMINAL - VISUAL BASED ON OBJECTS AND FLOW STRUCTURE OF CORRESPONDING BITS. |
WO1998056176A1 (en) * | 1997-06-03 | 1998-12-10 | Koninklijke Philips Electronics N.V. | Navigating through television programs |
US6295646B1 (en) * | 1998-09-30 | 2001-09-25 | Intel Corporation | Method and apparatus for displaying video data and corresponding entertainment data for multiple entertainment selection sources |
US6204887B1 (en) * | 1998-12-11 | 2001-03-20 | Hitachi America, Ltd. | Methods and apparatus for decoding and displaying multiple images using a common processor |
US7142777B1 (en) * | 1999-02-23 | 2006-11-28 | Canon Kabushiki Kaisha | Recording and reproducing apparatus and method generating recording location table for plurality of programs received in multiplexed data train |
US6425129B1 (en) * | 1999-03-31 | 2002-07-23 | Sony Corporation | Channel preview with rate dependent channel information |
JP4046886B2 (en) * | 1999-04-02 | 2008-02-13 | キヤノン株式会社 | Recording apparatus and recording apparatus control method |
JP3721009B2 (en) | 1999-05-31 | 2005-11-30 | 株式会社リコー | Recording viewing system |
US6931660B1 (en) * | 2000-01-28 | 2005-08-16 | Opentv, Inc. | Interactive television system and method for simultaneous transmission and rendering of multiple MPEG-encoded video streams |
JP2002091863A (en) * | 2000-09-12 | 2002-03-29 | Sony Corp | Information providing method |
JP4132630B2 (en) | 2000-10-11 | 2008-08-13 | 日本電気株式会社 | Broadcast system and method |
US20020066101A1 (en) * | 2000-11-27 | 2002-05-30 | Gordon Donald F. | Method and apparatus for delivering and displaying information for a multi-layer user interface |
US7174512B2 (en) * | 2000-12-01 | 2007-02-06 | Thomson Licensing S.A. | Portal for a communications system |
US6931449B2 (en) * | 2001-03-22 | 2005-08-16 | Sun Microsystems, Inc. | Method migrating open network connections |
US20020194608A1 (en) * | 2001-04-26 | 2002-12-19 | Goldhor Richard S. | Method and apparatus for a playback enhancement system implementing a "Say Again" feature |
US7873972B2 (en) * | 2001-06-01 | 2011-01-18 | Jlb Ventures Llc | Method and apparatus for generating a mosaic style electronic program guide |
US20040049788A1 (en) * | 2002-09-10 | 2004-03-11 | Canon Kabushiki Kaisha | Receiving apparatus, receiving method, and method of predicting audience rating |
JP4298282B2 (en) * | 2002-12-13 | 2009-07-15 | キヤノン株式会社 | Display control apparatus and control method thereof |
KR100998899B1 (en) * | 2003-08-30 | 2010-12-09 | 엘지전자 주식회사 | Method for service of thumbnail image and broadcasting receiver |
-
2003
- 2003-10-08 JP JP2003349769A patent/JP4408677B2/en not_active Expired - Fee Related
- 2003-11-21 US US10/717,560 patent/US20040117830A1/en not_active Abandoned
-
2008
- 2008-07-25 US US12/179,689 patent/US8074244B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5933192A (en) * | 1997-06-18 | 1999-08-03 | Hughes Electronics Corporation | Multi-channel digital video transmission receiver with improved channel-changing response |
US6115080A (en) * | 1998-06-05 | 2000-09-05 | Sarnoff Corporation | Channel selection methodology in an ATSC/NTSC television receiver |
US20020021373A1 (en) * | 2000-08-04 | 2002-02-21 | Yoshikazu Shibamiya | Signal receiving apparatus, remote controller, signal receiving system, and apparatus to be controlled |
US20020019982A1 (en) * | 2000-08-10 | 2002-02-14 | Shuntaro Aratani | Data processing apparatus, data processing system, television signal receiving apparatus, and printing apparatus |
US20020089610A1 (en) * | 2000-12-26 | 2002-07-11 | Tomoyuki Ohno | Broadcast receiver, broadcast reception method, digital TV broadcast receiver, external terminal, broadcast receiver control system, and storage medium |
US20020138829A1 (en) * | 2001-03-06 | 2002-09-26 | Canon Kabushiki Kaisha | Receiving apparatus and method thereof, and storage medium therefor |
US20050081244A1 (en) * | 2003-10-10 | 2005-04-14 | Barrett Peter T. | Fast channel change |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080178217A1 (en) * | 2003-06-20 | 2008-07-24 | Canon Kabushiki Kaisha | Image Display Method and Program |
US7620910B2 (en) | 2003-06-20 | 2009-11-17 | Canon Kabushiki Kaisha | Image display method and program with usage of numeric keys and cursor keys |
US20050044112A1 (en) * | 2003-08-19 | 2005-02-24 | Canon Kabushiki Kaisha | Metadata processing method, metadata storing method, metadata adding apparatus, control program and recording medium, and contents displaying apparatus and contents imaging apparatus |
US7599960B2 (en) | 2003-08-19 | 2009-10-06 | Canon Kabushiki Kaisha | Metadata processing method, metadata storing method, metadata adding apparatus, control program and recording medium, and contents displaying apparatus and contents imaging apparatus |
US7817301B2 (en) | 2003-10-22 | 2010-10-19 | Canon Kabushiki Kaisha | Data receiving-processing apparatus |
US20050091700A1 (en) * | 2003-10-22 | 2005-04-28 | Canon Kabushiki Kaisha | Data receiving-processing apparatus |
US20050160462A1 (en) * | 2003-12-11 | 2005-07-21 | Canon Kabushiki Kaisha | Signal generating method, program, and storing apparatus for automatically storing broadcast programs |
US20050130613A1 (en) * | 2003-12-11 | 2005-06-16 | Canon Kabushiki Kaisha | Program selecting apparatus |
US20050166242A1 (en) * | 2003-12-15 | 2005-07-28 | Canon Kabushiki Kaisha | Visual communications system and method of controlling the same |
US7716696B2 (en) | 2003-12-15 | 2010-05-11 | Canon Kabushiki Kaisha | Television receiver, information processing method and program |
US7536707B2 (en) | 2003-12-15 | 2009-05-19 | Canon Kabushiki Kaisha | Visual communications system and method of controlling the same |
US20060239299A1 (en) * | 2004-01-08 | 2006-10-26 | Albrecht Scheid | Extra error correcting method for zapping stream ts packet |
US20090168902A1 (en) * | 2005-04-06 | 2009-07-02 | Matsushita Electric Industrial Co., Ltd. | Method for arranging zapping streams in mpe-fec frame and receiver |
US20060285034A1 (en) * | 2005-06-15 | 2006-12-21 | Canon Kabushiki Kaisha | Image Display Method and Image Display Apparatus |
US7586491B2 (en) | 2005-06-15 | 2009-09-08 | Canon Kabushiki Kaisha | Image display method and image display apparatus |
US7808555B2 (en) | 2005-06-15 | 2010-10-05 | Canon Kabushiki Kaisha | Image display method and image display apparatus with zoom-in to face area of still image |
US20060284810A1 (en) * | 2005-06-15 | 2006-12-21 | Canon Kabushiki Kaisha | Image Display Method and Image Display Apparatus |
US20090116821A1 (en) * | 2005-08-15 | 2009-05-07 | Canon Kabushiki Kaisha | Reproduction control method, reproduction apparatus, and television set |
US8532473B2 (en) | 2005-08-15 | 2013-09-10 | Canon Kabushiki Kaisha | Reproduction control method, reproduction apparatus, and television set |
US20070188659A1 (en) * | 2006-02-13 | 2007-08-16 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
US8701006B2 (en) | 2006-02-13 | 2014-04-15 | Canon Kabushiki Kaisha | Image processing apparatus and image processing method |
US20100238996A1 (en) * | 2007-11-16 | 2010-09-23 | Panasonic Corporation | Mobile terminal and video output method |
CN104035674A (en) * | 2014-05-23 | 2014-09-10 | 小米科技有限责任公司 | Picture displaying method and device |
CN106648320A (en) * | 2016-12-20 | 2017-05-10 | 天脉聚源(北京)传媒科技有限公司 | Method and device for dynamic prompt of picture polling display |
Also Published As
Publication number | Publication date |
---|---|
JP4408677B2 (en) | 2010-02-03 |
US8074244B2 (en) | 2011-12-06 |
US20080282292A1 (en) | 2008-11-13 |
JP2004194294A (en) | 2004-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8074244B2 (en) | Receiving apparatus and method | |
US10462530B2 (en) | Systems and methods for providing a multi-perspective video display | |
US10547880B2 (en) | Information processor, information processing method and program | |
US9055328B2 (en) | Network-based service to provide on-demand video summaries of television programs | |
US8918800B2 (en) | Receiving apparatus and receiving method, broadcasting apparatus and broadcasting method, information processing apparatus and information processing method, bidirectional communication system and bidirectional communication method, and providing medium | |
EP1528809B1 (en) | Interactivity with audiovisual programming | |
US8015584B2 (en) | Delivering interactive content to a remote subscriber | |
KR100950111B1 (en) | Mpeg-4 remote communication device | |
KR100575995B1 (en) | Receiving apparatus | |
KR101965806B1 (en) | Content playback device, content playback method, content playback program and content distribution system | |
US20090178092A1 (en) | Video picture information delivering apparatus and receiving apparatus | |
JP2004357184A (en) | Apparatus and method for processing information, and computer program | |
JPH11103452A (en) | Interaction and screen control method in interactive program | |
KR100406631B1 (en) | Apparatus and method for providing and obtaining goods information through broadcast signal | |
US8166503B1 (en) | Systems and methods for providing multiple video streams per audio stream | |
US20100088724A1 (en) | Broadcast program display apparatus and method | |
JP4421666B1 (en) | Content receiving apparatus and content reproducing method | |
JPH11205708A (en) | Digital broadcast reception system | |
JP2005278123A (en) | Video receiver, program for functioning computer as video receiver, video providing device, and program for functioning computer as video providing device | |
JP2004363914A (en) | Video viewing control system, and video viewing control method, video-related information management server, viewing scene selection terminal, programs therefor, and recording medium for the programs | |
JP3886892B2 (en) | Video storage device | |
JP2010109993A (en) | Content reception device and content reproducing method | |
KR20110115837A (en) | Apparatus and method for displaying of electronic program guide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CANON KABUSHIKI KAISHA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OHNO, TOMOYUKI;SHIBAMIYA, YOSHIKAZU;MATSUMOTO, YUICHI;REEL/FRAME:014729/0650 Effective date: 20031113 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |