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:
Jan. 06, 1981
Filed:
Sep. 10, 1970
Applicant:
Inventors:
Marvin R Clinch, Oneida, NY (US);
Calvin R Graf, San Antonio, TX (US);
Paul E Martin, San Antonio, TX (US);
Robert B Fenwick, Palo Alto, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
455 29 ; 179 / ; 455 26 ;
Abstract
A privacy communication method and system which utilizes coherent, continuously changing frequencies for keyed, pulsed, and voice communications. A synthesized swept frequency or 'chirp' signal imparts a privacy or secure communications capability to the communications signal by virtue of the random or pseudo-random nature of the transmitted signals which is programmed.
Clinch, Marvin. (1981). Privacy communication method and system (U.S. Patent No. 4244053). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4244053
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile