Coded data generation or conversion – Digital code to digital code converters – To or from variable length codes
Patent
1995-10-13
1997-04-15
Gaffin, Jeffrey A.
Coded data generation or conversion
Digital code to digital code converters
To or from variable length codes
358427, H03M 740, H03M 140
Patent
active
056214057
ABSTRACT:
A variable-length decoding apparatus outputs symbol data corresponding to variable-length data. The data may be presented in units of a block having a predetermined magnitude. The apparatus has a memory composed of a plurality of storage regions for outputting information. Each storage region is designated by an absolute address. Each storage region contains relative address data, symbol data and a status signal representing whether or not a symbol is determined and indicative of the class of the determined symbol. The apparatus also has an absolute address generator for generating absolute address data in response to a control signal and the relative address data supplied from the memory, as well as a controller for generating the control signal in response to a start signal indicative of a start of each block having a predetermined magnitude, and the status signal supplied from the memory. The controller may also form the control signal dependent upon the initial bit of variable-length-coded data in a block. Thus, the control circuit can be designed in hardware without using a barrel shifter, and a variable-length decoding table can be embodied by using a memory having a small capacity.
REFERENCES:
patent: 5369405 (1994-11-01), Choi et al.
patent: 5379116 (1995-01-01), Wada et al.
patent: 5432512 (1995-07-01), Park
patent: 5459482 (1995-10-01), Orlen
patent: 5475389 (1995-12-01), Song et al.
patent: 5481364 (1996-01-01), Ito
patent: 5512896 (1996-04-01), Read et al.
patent: 5557271 (1996-09-01), Rim et al.
patent: 5561422 (1996-10-01), Kim
patent: 5561690 (1996-10-01), Park
Jeong Jechang
Park Ju-ha
Gaffin Jeffrey A.
Jean-Pierre Peguy
Samsung Electronics Co,. Ltd.
LandOfFree
Variable-length decoding apparatus using relative address does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable-length decoding apparatus using relative address, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable-length decoding apparatus using relative address will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-364196