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:
Nov. 09, 1999
Filed:
Mar. 19, 1997
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348398 ; 348405 ;
Abstract
In an image coding device and method for coding an image signal employing sub-band transforms, an inputted image signal is hierarchically divided into a plurality of frequency bands using sub-band transforms and a plurality of frequency band signals are generated, with each frequency band signal comprising sub-band transform coefficients. The sub-band transform coefficients of each frequency band signal are then coded using zero tree coding and run length coding in a more efficient manner than with related devices and methods.
Tong, Tak. (1999). Image signal coding method and device thereof, image signal decoding (U.S. Patent No. 5982434). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5982434
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