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:
Mar. 11, 1986
Filed:
Jul. 16, 1984
Applicant:
Inventor:
Leland T Brown, Phoenix, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 307261 ; 328 25 ; 179 / ; 363160 ;
Abstract
A programmable signal generator and method for generating frequencies that are subharmonics of a rectified 60 hertz input signal. Opto-coupled triacs systematically switch and rectify the input signal frequency to provide, for example, a ringing signal for a telephone system.
Brown, Leland. (1986). Synchronous programmable signal generator and method (U.S. Patent No. 4575585). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4575585
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