Variable-length decoding apparatus and method, computer...

Details Variable-length decoding apparatus and method, computer... Variable-length decoding apparatus and method, computer...

2005-08-30

2005-08-30

Jeanglaude, Jean Bruner (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

C382S246000

Reexamination Certificate

active

06937170

ABSTRACT:
This invention reduces the scale of a Huffman table used for decoding. A queuing unit queues a variable-length code word from a received bitstream. A switch circuit discriminates the type of the code word in accordance with the pattern of a predetermined number of bits at the start of the queued variable-length code word, extracts data having a sufficient code word length from a predetermined bit position on the basis of the discrimination result, and outputs the result to a Huffman table. The Huffman table compares the data from the switch circuit with a variable-length code word stored in advance, and when the data and the variable-length code word coincide, outputs first symbol data. The Huffman table also generates a sum value for the first symbol data, and generates two second symbols from the sum result. A selection unit selects and outputs one of the first symbol and two second symbols in accordance with the type of the received code. A selection unit selects and outputs one of the symbol selected by the selection unit and a symbol from an FLC decoder on the basis of the data queued by the queuing unit.

REFERENCES:
patent: 6125229 (2000-09-01), Dimitrova et al.
patent: 6137544 (2000-10-01), Dimitrova et al.
patent: 6603413 (2003-08-01), Igarashi et al.
patent: 2002/0090142 (2002-07-01), Igarashi et al.
patent: 2002/0122599 (2002-09-01), Igarashi et al.
patent: 2002/0164080 (2002-11-01), Igarashi et al.
patent: 2003/0058143 (2003-03-01), Chiba et al.
patent: 2003/0219164 (2003-11-01), Otsuka
patent: 2004/0017855 (2004-01-01), Otsuka
patent: 2003-115767 (2003-04-01), None

Affiliated with

Also associated with

Rating

Variable-length decoding apparatus and method, computer... 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 and method, computer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable-length decoding apparatus and method, computer... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3473839