Hierarchical variable length decoder for digital video data

Details Hierarchical variable length decoder for digital video data Hierarchical variable length decoder for digital video data

1991-03-28

1993-06-15

Logan, Sharon D.

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

341106, 341 59, H03M 740, H03M 746

Patent

active

052203255

ABSTRACT:
Efficient decoding of an hierarchical, variable length, encoded data sequence containing embedded uncoded data into a sequence of fixed length instructions for subsequent processing by a digital video processor or the like is realized in an apparatus including a decoder having a plurality of variable length code decoding elements and a control structure embedded within each decoding element for transferring the decoding operation to an appropriate one of the decoding elements in response to a prior output from the decoder element. As the encoded data sequence is processed by the apparatus, a predetermined length of the sequence is stored in a register. The control structure further responds to the encoded data sequence to initiate selection of either the predetermined length of the sequence stored in the register or a portion of the decoder output as the fixed length instruction to be output by the apparatus.

REFERENCES:
patent: 3918047 (1975-11-01), Denes
patent: 4396906 (1983-08-01), Weaver
patent: 4475174 (1984-10-01), Kanayama
patent: 4568916 (1986-02-01), Bahgat
patent: 4992954 (1991-02-01), Takeda et al.
patent: 5016009 (1991-05-01), Whiting et al.
patent: 5021782 (1991-06-01), Perron et al.
patent: 5032838 (1991-07-01), Murrayama et al.
M. Wells, The Computer Journal, vol. 15, No. 4, 1972, "File Compression Using Variable Length Encodings", pp. 308-313.
M. Sun et al., Proc. of SPIE Applications of Digital Image Proc., vol. 1153, "High-Speed Programmable ICs for Decoding . . . " pp. 28-39, 1989.
K. Yang et al., Proc. of SPIE Visual Comm. & Image Processing, 1990, vol. 1360 "Design of a Multi-Function Video Decoder . . . ", pp. 1530-1539.

Affiliated with

Also associated with

Rating

Hierarchical variable length decoder for digital video data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hierarchical variable length decoder for digital video data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hierarchical variable length decoder for digital video data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1046389