Patent ID: 6014095
Filing Date: 2000-01-11
Classification: H03M,H04N

Abstract:
A variable length coding system, used in a moving picture coding system, comprising:a memory of storing variable length codes;a memory means for storing quantized DCT coefficients;a quantized DCT coefficient coding means sequentially reading out the quantized DCT coefficients for coding the read-out quantized DCT coefficients, said quantized DCT coefficient coding means outputting an address signal for referring to said memory recording said variable length codes in the case of a variable length code, said quantized DCT coefficient coding means also outputting a code word and a code length in the case of a fixed length code;means for coding information to be coded other than the quantized DCT coefficients, this means outputting an address signal for referring to said memory recording said variable length codes in the case of a variable length code, this means also outputting a code word and a code length in the case of a fixed length code;means for selecting an address for the variable length code from a group of candidates;means for selecting a code of the fixed length code from a group of candidates;means for delaying the code of the fixed length code by a fixed delay period;means for selecting one of the variable length code and the fixed length code; andmeans for putting the selected codes in a string so as to form a code string.