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:
May. 12, 1998
Filed:
Jun. 28, 1996
Mikio Sugiyama, Tokyo, JP;
Kaoru Endo, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Before dither-processed data are input to a compression processing section, dither-processed data of a previous frame and dither-processed data of a current frame are subjected to inter-frame differential processing in a differential processing section to form signal series having long white and black run length for the data input to the compression processing section, thereby enhancing the compressibility. A coding control section for performing coding processing beforehand sets a flag for determining whether each of the dither processing, the differential processing and the compression processing is performed. Each processing is performed on the basis of the flag information.