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. 20, 1991
Filed:
May. 12, 1989
Applicant:
Inventor:
Tokikazu Matsumoto, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 / ; 358 13 ;
Abstract
A video signal is sampled with a sampling frequency which is at least four times of the highest frequency of the video signal, subsequently, sampled signals are converted into digital signals and component thereof which are higher than the highest frequency of the video signal are eliminated by a low pass filter, then, remaining sampled signals are alternately decimated by a decimation circuit, thus the sampling frequency is reduced in appearance to the half thereof.
Quick Actions:
Matsumoto, Tokikazu. (1991). Digital video signal processing method and apparatus therefor (U.S. Patent No. 5041906). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5041906
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile