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:
Dec. 21, 1982
Filed:
Oct. 29, 1980
Mitsuhiko Yamada, Kyoto, JP;
Toshiaki Nakade, Kyoto, JP;
Dainippon Screen Seizo Kabushiki Kaisha, Kyoto, JP;
Abstract
A method for compressing picture data, wherein an original picture is scanned photoelectrically to obtain analog picture signals which are converted in an analog-digital converter into picture data to be transmitted or stored in a memory, wherein each of a matrix of picture data having addresses is compared with an adjacent picture data in horizontal, vertical, right upper diagonal and left upper diagonal directions to obtain comparison results, and wherein either each picture data or its adjacent picture data is skipped according to the comparison results when the two picture data have the same value, to obtain compressed data consisting of representative data which cannot be skipped.