US 6,144,322 AGranted

Variable length code processor with encoding and/or decoding

AssigneeMitsubishi Denki Kabushiki Kaisha

InventorHisakazu Sato

Life of this patent

Estimating the term…

Loading patent…

Abstract

A variable length code processor is obtained which can perform encoding or decoding process in a plurality of variable length encoding standards. A sequence control section (5) has two control registers (VL.sub.-- MODE and VL.sub.-- CNT). A CPU (2) sets the desired value to the control register (VL.sub.-- MODE) to select a processing content to be performed by a VLC processor (4). A local memory (7) is realized by a 4K-byte RAM to store retrieval tables used in decoding or encoding process. The sequence control section (5) controls a second DCT buffer section (11), an address generating section (12), a DCT generating section (14), VLC generating section (14), a shifter section (15), a VLC buffer section (16), and a VLC pack section (17), so that the process indicated by the control register (VL.sub.-- MODE) is executable.

Claims9

Dependent claims

A variable length code processor comprising:

a rewritable first storage section;
a rewritable second storage section;
and
a variable length code processing execution section that executes a variable length code processing that includes at least one of a decoding process being a decoding of a variable length code provided from outside and an encoding process being a variable length encoding of data to be encoded which is provided from outside, wherein
said first storage section is configured to store a variable length code processing information serving as a reference information in performing said variable length code processing, in accordance with an encoding standard for a variable length code to be processed;
said second storage section is configured to store an encoding standard information that indicates an encoding standard for said variable length code to be processed;
and
said variable length code processing execution section executes said variable length code processing by referring to said encoding standard information and said variable length code processing information.

5 more elements

Dependencies are inferred from the claim text.