Title:
データストリームを処理する装置及び方法
Document Type and Number:
Japanese Patent JP3811183
Kind Code:
B2
Abstract:
PCT No. PCT/US93/11613 Sec. 371 Date May 23, 1996 Sec. 102(e) Date May 23, 1996 PCT Filed Nov. 30, 1993 PCT Pub. No. WO95/15651 PCT Pub. Date Jun. 8, 1995In a digital television signal processing system, a special codeword, a Packet Alignment Flag (PAF), is inserted into an MPEG codeword bitstream to signify the presence of a Group of Pictures (GOP). The PAF immediately precedes a Picture Start codeword for an "I" frame, which initiates a GOP. A data packet under construction when a PAF appears is terminated since a GOP is intended to begin at a packet boundary. Such termination may result in an abbreviated packet of MPEG codewords less than a prescribed number of bits needed to complete a data packet. The last word of each packet is designated as such to facilitate the subsequent combining of data packets with respective headers. An incomplete data packet is filled with null (zeroed bits) words to make up a complete data packet with a prescribed number of bits.
Inventors:
Banteing, Lichyard Michael
Harris, David Isaac
Acampora, Alphonse Anthony
Brooks, Chyar Alan
Harris, David Isaac
Acampora, Alphonse Anthony
Brooks, Chyar Alan
Application Number:
JP51557095A
Publication Date:
August 16, 2006
Filing Date:
November 30, 1993
Export Citation:
Assignee:
GE Technology Development, Inc.
International Classes:
H04N11/04; H04L47/43; H04N7/08; H04N7/081; H04N7/12; H04N7/24; H04N7/60; H04N19/00; H04N21/236; H04N21/434
Foreign References:
| WO1991013516A1 |
Other References:
1.和田正裕、滝嶋康弘,「ATM網における符号化ビデオ信号の構造的セル化 」,電子情報通信学会論文誌 B-I,日本,電子情報通信学会,1991年 8月,Vol.J74-B-I,No.8,pp.609-618
2.K.Joseph, D.Raychaudhuri, R.Siracusa,J.Zdepski,”MPEG++: A robust compression and transport system for digital HDTV”,Signal Procession; Image Communication,Elsevier Science Publishers B.V.,1992年 8月,Vol.4, No4-5,pp.307-323
2.K.Joseph, D.Raychaudhuri, R.Siracusa,J.Zdepski,”MPEG++: A robust compression and transport system for digital HDTV”,Signal Procession; Image Communication,Elsevier Science Publishers B.V.,1992年 8月,Vol.4, No4-5,pp.307-323
Attorney, Agent or Firm:
Kenichi Matsumoto