The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 08, 1991

Filed:

Jul. 26, 1989
Applicant:
Inventors:

Toshiaki Watanabe, Kawasaki, JP;

Fumio Sugiyama, Sagamihara, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358133 ; 358 12 ; 358135 ; 358136 ;
Abstract

An image coding apparatus includes an image dividing circuit for dividing an image signal of one frame into a plurality of blocks, an amount-of-data calculator for computing the amount of data representing fineness of a picture included each block, a bit-assignment determining circuit for distributing all coding bits usable for encoding the image signal of one frame to the individual blocks, to each block a number of bits which has been determined by the amount of data of the block, a quantizer for quantizing the image signal for each block and outputting a quantization signal, and an encoder for encoding the quantization signal in accordance with the number of bits of each block determined by the bit-assignment determining circuit.


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