Title:
DIGITAL ENCODING MULTIPLEXER
Document Type and Number:
Japanese Patent JP3429652
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To multiplex program data without adding any change to a data transmission rate about a bit stream on the side of being multiplexed by inserting a redundant code stream into an idle time that appears in a packet data stream from a compression encoding means and outputting it as a multiplexed bit stream.
SOLUTION: An acoustic video encoder 11 compresses a program A with compressibility that is indicated by a control signal CTL, makes it a packet and outputs it as a transport stream TS (A). When the stream TS (A) is inputted from the encoder 11, a multiplexer 13 outputs it in a transmission rate that is the same with the time of being inputted and when the stream TS (A) is not inputted, it inserts a null packet Null sent from a null packet generator 12 that is a redundant packet generating means into an idle period. Consequently, it is possible to generate a transport stream TS (C) which is easy to be remultiplexed.
Inventors:
Norihide Ohmoto
Jun Saba
Jun Saba
Application Number:
JP32981797A
Publication Date:
July 22, 2003
Filing Date:
December 01, 1997
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
H04N7/08; H04J3/00; H04N7/081; (IPC1-7): H04J3/00; H04N7/08; H04N7/081
Domestic Patent References:
| JP9168150A | ||||
| JP10173622A | ||||
| JP5664532A | ||||
| JP4330885A | ||||
| JP8138316A |
Other References:
三木康弘，特集５ 画像／音声などのディジタル・データ伝送実験の実際と課題，Ｉｎｔｅｒｆａｃｅ，日本，１９９６年，Ｓｅｐ，１９９９，ｐ．１５４−１６０
Attorney, Agent or Firm:
Nobuyuki Kudo
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