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. 15, 1977
Filed:
Feb. 20, 1976
Applicant:
Inventor:
Yasuyuki Komura, Tokyo, JA;
Assignee:
Kabushiki Kaisha Ricoh, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358260 ;
Abstract
Graphic information is encoded in the form of an electrical pulse train, which is divided into a number of blocks of equal length. Only those blocks containing pulses are retained, and are combined for transmission with a decoding signal for subsequent synthesis of the original pulse train. The compression efficiency may be further increased by converting the pulse train into delta graphic form, or a modified delta graphic form in which extremely short pulses are suppressed prior to compression.