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.
Patent No.:
Date of Patent:
Aug. 10, 1999
Filed:
Feb. 21, 1997
Applicant:
Inventor:
Tatsutoshi Kitajima, Kodaira, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G06K / ;
U.S. Cl.
CPC ...
382251 ; 382239 ; 3582612 ; 358430 ; 348405 ;
Abstract
An image processing method and an image processing apparatus in which a DCT section transforms image data to a frequency conversion coefficient using a discrete cosine transform coefficient, a quantizing section quantizes the transformed frequency conversion coefficient using a quantization coefficient indicating weighing in quantization, a Huffman encoding section encodes the quantized data, and a CPU detects a code rate for encoded data by a prespecified time interval during execution of processing for encoding the data quantized by the encoding means and changes the quantization coefficient during processing for encoding according to the detected code rate.