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1. CN101288298 - Method and system for providing instant replay

Office China
Application Number 200680030025.X
Application Date 27.06.2006
Publication Number 101288298
Publication Date 15.10.2008
Grant Number 101288298
Grant Date 18.08.2010
Publication Kind B
IPC
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
76
Television signal recording
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
7
Television systems
24
Systems for the transmission of television signals using pulse code modulation
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
79
Processing of colour television signals in connection with recording
80
Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
804
involving pulse code modulation of the colour picture signal components
H04N 5/76
H04N 7/24
H04N 9/804
CPC
H04N 21/4325
H04N 5/76
H04N 9/8042
H04N 21/4307
Applicants Streaming Networks
流式网络公司
Inventors Mughal Mushtaq Ahmad
穆施塔奇·A.·姆格哈尔
Obaid Adnan
阿德南·欧拜得
Rashid Haroon Ur
哈罗恩·U.·拉施德
Agents magao
中国国际贸易促进委员会专利商标事务所 11038
Priority Data 11167547 27.06.2005 US
Title
(EN) Method and system for providing instant replay
(ZH) 提供即时重放的方法及系统
Abstract
(EN)
A method for providing instant replay is disclosed. According to the method, a video stream and an audio stream are received from a source. A program is rendered from the video and audio streams and played in real time. The video stream and the audio stream are compressed using a video compression engine and an audio compression engine respectively. Information relating to the compressed video and audio streams and the video and audio compression engines is stored in a sequence header. The compressed video and audio streams are multiplexed to form a single data stream. The information relating to video and audio frames including synchronization information is stored in a multiplexer header. Media units are formed from the multiplexed data stream. Each media unit includes at least one video frame and at least one or more corresponding audio frames. Each media unit further includes a first video frame that is independently decodable. Each media unit is an independently decodable entity. The media units have a fixed duration. The media units are stored in a memory. A number of starting addresses are stored in a table. Each of the starting addresses corresponds to one of the media units. The sequence header is retrieved in response to receipt of an instant replay command. Appropriate video and audio decompression engines are selected and configured based on the retrieved sequence header. An instant replay starting address is identified from the table in response to receipt of the instant replay command. One or more media units are retrieved from the memory starting with the media unit associated with the instant replay starting address. The one or more retrieved media units are demultiplexed into compressed video and audio data for respective delivery to the video and audio decompression engines. The decompressed data are then rendered.

(ZH)

公开了一种用于提供即时重放的方法,包括从源接收视频流和音频流。每个媒体单元包括至少一个视频帧和至少一个或多个相应音频帧,进一步包括可独立解码的第一视频帧。每个媒体单元是可独立解码的实体。媒体单元具有固定持续时间。在存储器中存储所述媒体单元。在表格中存储多个开始地址。响应于即时重放命令的接收获得序列报头。基于获得的序列报头选择并配置合适的视频及音频解压缩引擎。响应于即时重放命令的接收,从表格识别即时重放开始地址。从与即时重放开始地址关联的媒体单元开始,从存储器获得一个或多个媒体单元。