Title:
TRANSMISSION METHOD FOR PLURAL VARIABLE RATE SIGNALS AND TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JP3573171
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To decode a video signal without the use of a frame synchronizer by dividing a high definition video signal by one pattern, applying variable length coding and multiplexing the result, allowing a decoder side to decode the signal with synchronization expansion.
SOLUTION: An A/D converter 1 converts an analog HD video signal into a digital HD data, which are given to a division processing section 2 to obtain 1/4 split data H1-4 in the unit of data by one pattern. Furthermore, they are synchronized and the result is outputted to a coder section 4, in which the data are subjected to compression variable length coding under the control of information quantity compression sections CMP1-4, a variable length coding section EP1, a bit rate allocation and multiplex control section 43 and a multiplex timing signal generating section 44 with the same algorithm and configuration. Then a variable length bit signal to be multiplexed by a constant rate buffer 42 is read at a constant rate and sent to a decoder through a transmission line 10. Thus, the decoder side attain variable length coding, decoding and expansion decoding easily to decode the data into original one-pattern video data.
Inventors:
Yoko Matsuura
Application Number:
JP25683895A
Publication Date:
October 06, 2004
Filing Date:
September 08, 1995
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N11/04; H04J3/00; H04J3/22; H04N7/08; H04N7/081; H04N19/00; H04N19/12; H04N19/126; H04N19/13; H04N19/134; H04N19/172; H04N19/174; H04N19/176; H04N19/186; H04N19/196; H04N19/423; H04N19/46; H04N19/503; H04N19/51; H04N19/61; H04N19/625; H04N19/70; H04N19/85; H04N19/91; (IPC1-7): H04J3/22; H04J3/00; H04N7/08; H04N7/081; H04N7/24; H04N11/04
Domestic Patent References:
| JP6268985A |
Attorney, Agent or Firm:
Masami Sato