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:
Oct. 13, 1987
Filed:
May. 30, 1985
Applicant:
Inventors:
David J Large, Los Gatos, CA (US);
William G Kostka, San Jose, CA (US);
Richard A Wayman, San Jose, CA (US);
Assignee:
Gill Industries, Incorporated, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 86 ; 358139 ; 358 / ; 358145 ; 328188 ;
Abstract
Apparatus and method for testing the frequency response of a cable television system by transmitting a test signal of varying frequency over the system. The test signal is transmitted during the blanking intervals between successive frames or lines of the television pictures and at a level comparable to the level of the video signals which carry the information for the pictures.
Large, David. (1987). Apparatus and method of testing the frequency response of a cable (U.S. Patent No. 4700222). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4700222
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile