CN1108699C - 发送与接收电视节目以及附加数据服务的电路和方法 - Google Patents

发送与接收电视节目以及附加数据服务的电路和方法 Download PDF

Info

Publication number
CN1108699C
CN1108699C CN97193070A CN97193070A CN1108699C CN 1108699 C CN1108699 C CN 1108699C CN 97193070 A CN97193070 A CN 97193070A CN 97193070 A CN97193070 A CN 97193070A CN 1108699 C CN1108699 C CN 1108699C
Authority
CN
China
Prior art keywords
channel
programme
signal component
signal
program
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.)
Expired - Fee Related
Application number
CN97193070A
Other languages
English (en)
Other versions
CN1213478A (zh
Inventor
P·B·卡尔斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1213478A publication Critical patent/CN1213478A/zh
Application granted granted Critical
Publication of CN1108699C publication Critical patent/CN1108699C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—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
    • H04N21/233—Processing of audio elementary streams
    • H04N21/2335—Processing of audio elementary streams involving reformatting operations of audio signals, e.g. by converting from one coding standard to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23614—Multiplexing of additional data and 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]
    • H04N21/20—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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2368—Multiplexing of audio and 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]
    • H04N21/20—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
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • 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
    • H04N21/4341—Demultiplexing of audio and 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
    • H04N21/434—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
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • H04N21/4348—Demultiplexing of additional data and video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information

Abstract

公开了通过多个频道传送电视节目并且通过所选择的电视频道传送附加的数据服务，例如，电子节目指南的方法和电路。在处理和显示节目指南的同时，先有技术不能继续再现当前所接收的电视节目，因为该节目通常是由不同的频道传送的。本发明提供了一种解决这一问题的方法，即复制例如代表所述选择的电视频道内的各种电视节目的音频内容的信号分量。这样将使得观众可以跟上他们正在观看的服务。并且一旦有感兴趣的节目出现时，可以立即转换到该节目上来。本发明特别适用于数字视频广播(DVB)系统，在这种系统中，每一频道可以容纳多个电视节目。

Description

发送与接收电视节目以及 附加数据服务的电路和方法
本发明涉及通过多个频道发送电视节目，以及经过所述多个频道中所选定的一个频道发送附加数据服务的电路和方法。本发明同时涉及接收所述电视节目和附加数据服务的电路和方法。详细地说，但不是唯一的，本发明可以应用在数字视频广播系统中。
在数字视频广播(DVB)系统中，通过卫星，电缆，或地上频道传送的活动图像专家组(MPEG)传输流中含有多个电视节目。DVB发送系统包括多个这样的频道。
其它附加的服务与电视节目一起提供。附加服务的一个例子是电子节目指南(EPG)。这种节目指南包括与所述发送系统所发送的电视节目有关的节目时间表信息。所述节目时间表信息可以通过多个频道分发，或完全在所述频道中选定的一个频道内发送。
为了接收，处理并显示诸如节目指南这样的附加服务，需要将接收机(通常为一个机顶盒)调谐到传输所述节目指南的特定的频道上，一般来说，这一频道与接收机当前所调谐的频道不同。因此，当访问节目指南时，先有技术的接收机不能继续电视节目的再现。
本发明的一个目的是提供一种经过改进的传送附加数据服务的方法和电路。
根据本发明，所述方法的特点在于包含以下步骤：在所述被选电视频道内发送；在其它频道内发送的电视节目的信号分量；以及对于每一电视节目，发送用于识别所述被选频道内所述信号分量位置的数据。通过这样在含有附加服务的电视频道内复制信号分量，所述信号能够与特有的服务一起同时再现。这种“替换”信号能够使用户在不丢失当前所输送的电视节目的同时查阅节目指南。用户可以保留有关的电视节目，并一旦有感兴趣的节目出现时，可以立即转换到所述节目上来。
所述用于识别被选频道内信号分量位置的数据使接收机能够在访问附加数据服务之前确定哪个信号分量来源于所观看的电视节目。所有电视节目的识别数据可以集中地通过单一频道传送，例如，和信号分量以及节目指南一起通过被选频道来发送。所述识别数据也可以通过多个频道来分发。例如，每一频道可以容纳关于在所述频道内发送的电视节目的数据。
带有附加数据服务的信号分量可以是电视节目的声音信号。所述节目的声音信号(或者如果有多种声音信号则是多种声音信号中的一种)需要适度的带宽量，并提供对所述节目中所出现内容的良好印象。所述信号分量也可以是所述电视节目的视频信号分量。发送低质量的信号分量可以降低所需的带宽。甚至所述电视节目中一序列小的、也许黑白的、正常刷新的静止图像也足以使用户对“真实”节目中所出现的图像有一种良好的印象。
图1表示根据本发明的用于传送多个电视节目的电路图。
图2表示根据本发明的电视接收机。
图3表示图2中所示的控制处理器所进行的操作的流程图。
图1显示了根据本发明的用于传送多个电视节目的电路图。一般来说，每一电视节目包括视频信号、一种或多种音频信号、以及辅助数据信号(例如，图文电视)。在所述实施例中，所述电路传送8个电视节目，每一电视节目具有一种音频信号和一种视频信号。以基本MPEG位流A1...A8的形式施加数字音频信号，以基本MPEG位流V1...V8的形式施加数字视频信号。
音频和视频信号成对地加到多路复用器1...8上，并且在其中组合成各自的电视节目或“服务”S1...S8。多种服务(一般为5到10种)与频道的带宽相适应。在所述的实施例中，多路复用器9将服务S1...S3组合成为传输流TS1，所述传输流被调制器10调制在载波上。多路复用器11将服务S4...S6组合成为传输流TS2，所述传输流被调制器12调制在载波上。多路复用器13将服务S7，S8组合成为传输流TS3，所述传输流被调制器14调制在载波上。调制后的载波在混合器15中组合，并加在传输媒体16上。所述传输媒体可以是卫星链路，电缆，异步转移模式(ATM)网络等。
所述电路还包括压缩系统管理器17，它控制多路复用器和将服务信息SI加到所发送的各种服务上。在本实施例中，所述服务信息被包含在被选用的一个传输流中，即，TS3。所述服务信息包括：服务描述表(SDT)，它识别网络中每一种传送的服务的相关传输流(TSj)，在所述传输流中的服务(Sj)，和服务名称，以及其它的信号。在本实施例中，服务信号还包括电子节目指南(EPG)。
根据本发明，所述电路还提供TS1和TS2中所含有的电视节目音频信号分量在所选择的传输流TS3中的传送。为了达到这一目的，数字音频信号A1...A6同时被加到多路复用器13上。还利用压缩系统管理器17所发出的服务描述表，把音频信号定义为独立的服务S9...S14。
图2表示根据本发明的接收机的示意图。所述接收机包括：调谐/解调器20，用于将所需的传输流TSj解调；多路分用器21，用来选择所需的服务Sj的基本音频流Aj和视频流Vj；MPEG音频解码器22；MPEG视频解码器23；和控制电路24。在初始操作方式中，控制处理器已经接收并且存储了上述的服务描述表。
为了接收和再现传输流TSj内所包含的所需的电视节目服务Sj，所述控制电路将相关的传输流识别符j加到调谐/解调器20，并将相关的服务识别符i加到多路分用器上。然后将这样选择的音频信号Ai和视频信号Vi解码并加到再现设备上(未示出)。
把服务信息SI加到用于内部处理的控制电路上。如果所述信息将要被显示(例如，菜单或节目指南)，则控制电路将有关数据加到字符发生器26上，所述字符发生器产生屏幕显示图像OSD，并将所述图像加到混合级25以便显示在屏幕上。
在本实施例中，必须将所述接收机调谐到传输流TS3上以便访问服务信息SI。运行诸如经过TS3发送的节目指南的应用程序、防止所述接收机接收在TS1或TS2中发送的电视节目。只可能同时接收和再现相同传输流内所含有的服务，例如，电视节目S7和S8。通过在TS3内发送音频信号A1...A6，所述接收机现在能够至少再现其它节目中的音频信号。这使观众在音频信号提示、例如、新的电视节目开始、或在足球比赛中进球得分时，可以离开节目指南，切换到电视接收。
在传输流TS3中音频信号的复制需要一定的带宽。通过压缩所述音频信号而获得低质量的音频信号，可以将所述带宽减小。图1中，由任选的压缩电路18的各级来表示这种过程。
本发明还提供将传输流TS3中的音频信号与所述音频信号从其中产生的电视节目连接的机制。目前数字视频广播(DVB)标准已经包括了一种机制：“连接描述符”，用来将附加信号与服务连接。所述连接描述符指定：传输流和含有附加信息的服务；定义连接类型，以及其它信息。有人提出，将未定义的连接类型之一这样定义、以便将附加信息指定为“替换”服务，并将这种连接描述符加到前面已经提到的服务描述表(SDT)的相关的入口。在本实施例中应用这一机制将产生如下表所示的服务描述表。应该指出，应按照已经定义的连接描述语法包含载有替换服务的传输流。实际上，接收机已经了解有关的传输流，因为它是载有节目指南的传输流。
                             服务S                              TS                            替换服务S                              TS
    1     1     9     3
    2     1     10     3
    3     1     11     3
    4     2     12     3
    5     2     13     3
    6     2     14     3
    7     3     -     -
    8     3     -     -
因此，在观众进入节目指南的一段时间，连接机制识别接收机必须再现的替换音频信号。相反，连接机制还识别替换音频信号从其中产生的电视节目。如果观众结束节目指南时间，即使所述观众在电视节目指南期间已经选择了新的替换信号，则这种机制将允许接收机切换到所述电视节目上。
图3表示接收机的控制处理器24进行的操作的流程图。在步骤30，所述接收机被调谐到电视节目上，例如，在传输流TS2中传送的服务S5。在步骤31，观众进入节目指南期间。对此作出响应(步骤32)，处理器在服务描述表中查询当前服务的入口，并且找出当前服务的替代信号是TS3中的服务S13。然后，控制调谐/解调器和多路复用器同时接收并再现传输流TS3中的节目指南EPG和音频服务S13。这样，可能以低品质继续服务S5的音频再现。在步骤33中，观众结束了节目指南时间，对此作出响应(步骤34)，所述控制器扫描服务描述表，以便确定接收机必须返回到哪一个电视节目。通常，这将与前面的程序相同。然而，本发明允许观众在节目指南期间选择不同的音频信号，并且此后可将接收机切换到所选择的音频信号从其中产生的电视节目。
也可以设想，在传输流TS3中发送替换视频信号，而不是发送替换音频信号，或者在发送替换音频信号以外，同时发送替换视频信号。在这种情况下，实际上将需要对所述视频信号的、根据空间分辨率(二次采样)、时间分辨率(例如，只有I图像)的强压缩。可以对替换视频信号进行图像信息处理(“PIP”)、使其成为节目指南。
总之，本专利公开了通过多个频道发送电视节目并且通过所选择的电视频道发送附加的数据服务，例如，电子节目指南的方法和电路。在处理和显示节目指南时，先有技术电视接收机不能继续再现当前接收的电视节目，因为所述节目通常是由不同的频道传送的。本发明提供了一种解决这一问题的方法，即复制例如代表所述选择的电视频道内的各种电视节目的音频内容的信号分量。这使得观众可以跟上他们正在观看的服务，并且一旦有感兴趣的节目出现，则立即转换到所述节目上来。本发明特别适用于数字视频广播(DVB)系统，在这种系统中，每一频道可以容纳多个电视节目。

Claims (10)

1.一种经由多个频道传送电视节目并且经由所述各频道中所选择的一个频道传送附加数据服务的方法，其特征在于包括以下步骤：在所述选择的电视频道内传送；在其它频道内传送的电视节目的信号分量；以及对于每一电视节目，发送识别所述信号分量在所述选择的频道内的位置的数据。
2.权利要求1的方法，其特征在于：所述信号分量是代表电视节目音频内容的音频信号。
3.权利要求1的方法，其特征在于：所述信号分量是代表电视节目视频内容的视频信号。
4.权利要求1的方法，其特征在于：所述信号分量是所述电视节目的相应的信号分量的低品质形式。
5.一种接收经由多个频道传送的电视节目以及经由所述各频道中所选择的一个频道传送的附加数据服务的方法，特征在于包括以下步骤：对于所选择的电视节目，接收用于识别所述电视节目的信号分量在所述选择的频道内的位置的数据，以及在访问所述附加数据服务的同时再现所述被识别的信号分量。
6.一种经由多个频道传送电视节目并且经由所述各频道中所选择的一个频道传送附加数据服务的的电路，其特征在于包括：用于在所述被选择的电视频道内传送在其它频道内传送的电视节目的信号分量；以及用于对于每一电视节目，发送识别所述信号分量在所述选择的频道内位置的数据的装置。
7.权利要求6的电路，其特征在于：所述信号分量是代表电视节目音频内容的音频信号。
8.权利要求6的电路，其特征在于：所述信号分量是代表电视节目视频内容的视频信号。
9.权利要求6的电路，其特征在于：所述信号分量是所述电视节目的相应的信号分量的低品质形式。
10.一种接收经由多个电视频道传送的电视节目以及经由所述各频道中所选择的一个频道传送附加数据服务的电视接收机，其特征在于所述接收机包括：对于每一电视节目，接收识别所述电视节目信号分量在所述被选频道内位置的数据的装置；以及在访问所述附加数据服务的同时再现所述被识别的信号分量的装置。
CN97193070A 1996-11-21 1997-11-03 发送与接收电视节目以及附加数据服务的电路和方法 Expired - Fee Related CN1108699C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96203227.2 1996-11-21
EP96203227 1996-11-21

Publications (2)

Publication Number Publication Date
CN1213478A CN1213478A (zh) 1999-04-07
CN1108699C true CN1108699C (zh) 2003-05-14

Family

ID=8224594

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97193070A Expired - Fee Related CN1108699C (zh) 1996-11-21 1997-11-03 发送与接收电视节目以及附加数据服务的电路和方法

Country Status (10)

Country Link
US (1) US5999216A (zh)
EP (1) EP0878095A2 (zh)
JP (1) JP2000504527A (zh)
KR (1) KR19990081825A (zh)
CN (1) CN1108699C (zh)
AU (1) AU720959B2 (zh)
BR (1) BR9707158A (zh)
CA (1) CA2243700C (zh)
MY (1) MY132685A (zh)
WO (1) WO1998023091A2 (zh)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400996B1 (en) 1999-02-01 2002-06-04 Steven M. Hoffberg Adaptive pattern recognition based control system and method
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US6418424B1 (en) 1991-12-23 2002-07-09 Steven M. Hoffberg Ergonomic man-machine interface incorporating adaptive pattern recognition based control system
US6850252B1 (en) 1999-10-05 2005-02-01 Steven M. Hoffberg Intelligent electronic appliance system and method
EP1414246B1 (en) * 1998-06-18 2007-02-28 Sony Corporation Electronic program guide multiplexed in an MPEG stream
TR200100164T2 (tr) 1998-07-20 2001-06-21 Canal+Societe Anonyme Çok-kanallı bir dijital televizyon sistemi için kanallar arasında gezme sistemi
US6604243B1 (en) * 1998-11-10 2003-08-05 Open Tv System and method for information filtering
US7904187B2 (en) 1999-02-01 2011-03-08 Hoffberg Steven M Internet appliance system and method
US6490002B1 (en) * 1999-02-03 2002-12-03 Sony Corporation Supplemental data path for supporting on-screen displays from external sources in a monitor/TV receiver using a secondary analog signal path
FI106421B (fi) * 1999-03-11 2001-01-31 Nokia Multimedia Network Termi Menetelmä ja järjestely videokuvien yhdistämiseksi
US6977691B1 (en) * 1999-09-21 2005-12-20 Texas Instruments Incorporated System for nonlinear viewing of television show segments
JP3639761B2 (ja) * 1999-12-27 2005-04-20 財団法人エヌエイチケイサービスセンター テレビジョン放送におけるデータ放送の放送方法
DE10030758A1 (de) * 2000-06-23 2002-08-29 Nokia Mobile Phones Ltd Verfahren zum Zugreifen auf Informationen
US7224837B2 (en) * 2000-10-11 2007-05-29 Screenpeaks Ltd. Digital video broadcasting
US7676822B2 (en) * 2001-01-11 2010-03-09 Thomson Licensing Automatic on-screen display of auxiliary information
EP1229736B1 (de) * 2001-01-31 2003-08-06 Johannes Maier Sende-Empfangs-System
US7426393B2 (en) * 2001-11-19 2008-09-16 Nokia Corporation Method and system of identifying network services
RU2006115582A (ru) * 2003-10-06 2007-11-27 Конинклейке Филипс Электроникс Н.В. (Nl) Система, передатчик, приемник, сигнал, способ для распределения услуг
KR20080024623A (ko) * 2006-09-14 2008-03-19 삼성전자주식회사 디스플레이장치 및 그 데이터 표시방법
US8218811B2 (en) 2007-09-28 2012-07-10 Uti Limited Partnership Method and system for video interaction based on motion swarms
EP2053864A1 (en) * 2007-10-15 2009-04-29 Koninklijke KPN N.V. System for distributing TV signals to an end-terminal
JP4645638B2 (ja) * 2007-11-22 2011-03-09 ソニー株式会社 信号送信装置、信号送信方法、信号受信装置及び信号受信方法
CN103209353B (zh) * 2012-01-13 2016-12-07 联咏科技股份有限公司 控制数字视频装置的方法
US9648072B2 (en) * 2012-01-31 2017-05-09 Comcast Cable Communications, Llc System and method for data stream fragmentation with scalability

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702220A1 (de) * 1987-01-26 1988-08-04 Pietzsch Ibp Gmbh Verfahren und einrichtung zur darstellung eines gesamtbildes auf einem bildschirm eines bildschirmgeraetes
JPH0219079A (ja) * 1988-07-06 1990-01-23 Pioneer Electron Corp 映像信号処理装置
DE3925501A1 (de) * 1988-07-30 1990-02-01 Samsung Electronics Co Ltd Mehrfachbildschirm-erzeugungsschaltkreis
JPH04314278A (ja) * 1991-04-12 1992-11-05 Sony Corp 映像信号受信装置
US5537153A (en) * 1992-11-16 1996-07-16 Kabushiki Kaisha Toshiba Television signal transmission and reception system with multi-screen display for tuning operation
KR100461207B1 (ko) * 1994-04-15 2005-04-21 코닌클리케 필립스 일렉트로닉스 엔.브이. 디지탈영상신호송수신장치
KR100348915B1 (ko) * 1994-05-12 2002-12-26 마이크로소프트 코포레이션 텔레비젼프로그램선택방법및그시스템
US5612742A (en) * 1994-10-19 1997-03-18 Imedia Corporation Method and apparatus for encoding and formatting data representing a video program to provide multiple overlapping presentations of the video program
JP4001942B2 (ja) * 1995-02-06 2007-10-31 ソニー株式会社 受信装置および受信方法、並びに放送システムおよび放送方法
US5621463A (en) * 1995-05-16 1997-04-15 Thomson Multimedia S.A. Easily expandable transport stream encoder

Also Published As

Publication number Publication date
BR9707158A (pt) 1999-04-06
CA2243700A1 (en) 1998-05-28
US5999216A (en) 1999-12-07
WO1998023091A2 (en) 1998-05-28
WO1998023091A3 (en) 1998-08-13
MY132685A (en) 2007-10-31
CN1213478A (zh) 1999-04-07
KR19990081825A (ko) 1999-11-15
EP0878095A2 (en) 1998-11-18
CA2243700C (en) 2005-04-19
JP2000504527A (ja) 2000-04-11
AU4634897A (en) 1998-06-10
AU720959B2 (en) 2000-06-15

Similar Documents

Publication Publication Date Title
CN1108699C (zh) 发送与接收电视节目以及附加数据服务的电路和方法
EP0594351B1 (en) Interactive television converter
US8966542B2 (en) System and method for providing media content and interactive content
CA2174352C (en) Television system distributing a dynamically varying number of concurrent video presentations over a single television channel
US7493639B2 (en) Interactive program summary panel
US5953046A (en) Television system with multiple video presentations on a single channel
US20020129374A1 (en) Compressed digital-data seamless video switching system
US20030140122A1 (en) Controlling digital data distribution in a relay server network
AU1831099A (en) Compressed digital-data seamless video switching system
US20040230991A1 (en) Method and apparatus for retrieving data from a broadcast signal
US20030115608A1 (en) Signal distribution method and apparatus
WO2000021287A1 (en) Method and apparatus for supplying video clips to viewer terminals
GB2356518A (en) Seamless switching between two groups of signals
JPH10150644A (ja) 放送データ送受信システム及びこれに使用する送信装置と受信装置

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C53 Correction of patent of invention or patent application
CB02 Change of applicant information

Applicant after: Koninklike Philips Electronics N. V.

Applicant before: Philips Electronics N. V.

COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: N.V. PHILIPS OPTICAL LAMP LTD., CO. TO: ROYAL PHILIPS ELECTRONICS CO., LTD.

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee