High efficient encoding/decoding system

Patent 5440345 Issued on August 8, 1995. Estimated Expiration Date:

July 16, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Apparatus for synchronizing main and auxiliary video signals
Patent #: 5121205
Issued on: 06/09/1992
Inventor: Ng, et al.

Method for recording coded motion picture data Patent #: 5191436
Issued on: 03/02/1993
Inventor: Yonemitsu

Inventor

Shimoda, Kenji

Assignee

Kabushiki Kaisha Toshiba

Application

No. 092423 filed on 07/16/1993

US Classes:

375/240.14, Plural348/467Data format

Examiners

Primary: Britton, Howard W.

Attorney, Agent or Firm

Cushman, Darby & Cushman

Foreign Patent References

0536630 EP. 04/22/1993
0546865 EP. 06/22/1993
9110329 WO. 07/22/1991

International Class

H04N 007/50

Foreign Application Priority Data

1992-07-17 JP

Abstract

A high efficient encoding/decoding system has processor for processing a sub-macro block having at least one collection of blocks as an encoding unit of input data, and a macro block having a macro block length data for indicating the length of the macro block itself in its head position and at least one of the sub-macro blocks. The collection of blocks in the sub-macro block includes a first passage for a variable length data having at least one collection of data obtained by performing a variable length encoding for every block of encoding unit on the input data, header information associated with the variable length data and a sub-macro block length data for indicating the length of the sub-macro block itself, a second passage for an adjustment bit data and a length data indicating the length of the adjustment bit data itself, and a third passage for a correction directing signal, thus for transmitting a data for selecting at least one of the three passages by embedding the selecting data in a coefficient based on an encoding characteristics of the variable length data.

Other References

"Video Codec Standardization in CCITT Study Group XV," Signal Processing: Image Communication, vol. 1, No. 1, Jun. 1989, Elsevier Science Publishers, pp. 45-54
"Draft Revision of Recommendation H.261: Video Codec for Audiovisual Services at p x 64 kbits/s," Signal Processing: Image Communication, vol. 2, No. 2, Aug. 1990, Elsevier Science Publishers, pp. 221-23