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. 16, 1976
Filed:
Nov. 18, 1974
William Frederic Herzog, San Martin, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
A frequency modulator includes a capacitor, a controlled current source, and a bistable circuit. The current source and bistable circuit operate to alternately vary the charge in opposite directions on the capacitor. The frequency of opposite charge variation is controlled by the amplitude of the input signal applied to the current source. A control circuit coupled to the capacitor and the bistable circuit varies the frequency of opposite charge variation to provide a linear frequency versus input signal amplitude.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile