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:
Jun. 06, 1978
Filed:
Aug. 16, 1976
Hiroshi Watanabe, Tokyo, JA;
Nippon Electric Co., Ltd., Tokyo, JA;
Abstract
A carrier converter comprises a branching filter for dividing an FM signal into a pair of component signals having amplitudes varying in relation to the FM signal frequency in different frequency ranges. A directional coupler is coupled to a pair of variable impedance circuits. Supplied with the component signals together with a carrier signal, the variable impedance circuits produce, through the coupler, an AM signal of the carrier signal modulated substantially by a modulating signal for the FM signal. When a carrier converter comprises a balanced diode bridge as a variable impedance circuit, an input AM signal may be supplied directly to one pair of the bridge terminals with a carrier signal supplied to the other bridge terminal pair through a balanced-unbalanced converter, through which the bridge produces an output AM signal of the supplied carrier signal modulated substantially by a modulating signal for the input AM signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile