Image coding apparatus, variable-length coding apparatus,...

Details Image coding apparatus, variable-length coding apparatus,... Image coding apparatus, variable-length coding apparatus,...

2008-05-20

2008-05-20

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from variable length codes

C341S065000, C341S058000, C341S059000

Reexamination Certificate

active

07375661

ABSTRACT:
A variable-length coding apparatus having a smaller circuit scale, which flexibly handles identifier insertion processing in correspondence with various coding schemes, and which performs fine code amount control and adaptive erroneous operation control, and an image coding apparatus having the variable-length coding apparatus. The variable-length coding apparatus converts quantized data obtained by quantizing image data into variable-length code data, generates a code data string having a predetermined data structure, and inserts padding bits and identifier into the variable-length code data based on an externally-input instruction. Further, the image coding apparatus having the variable-length coding apparatus changes quantization values based on the total code amount of code data string generated by the variable-length coding apparatus.

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