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. 26, 1986
Filed:
Jun. 04, 1984
Eiichi Adachi, Atsugi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A data compression device for a facsimile apparatus or like picture processing apparatus is operable with a desirable coding efficiency to remarkably reduce the transmission time. When the absolute value of a difference between the numbers of transition points of picture signals associated with two adjacent scanning lines is larger than a predetermined run difference coefficient, the device codes the picture signals by a one-dimensional mode coding operation which occurs with respect to the main scan direction only. When the former is equal to or smaller than the latter, the device codes the picture signals in a two-dimensional mode coding operation which occurs with respect to both the main scan direction and the subscan direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile