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:
May. 26, 1987
Filed:
Apr. 29, 1985
Applicant:
Inventor:
Herman W Van Rumpt, Bois-le-Duc, NL;
Assignee:
U.S. Philip Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375 88 ; 375 97 ; 329112 ; 329122 ;
Abstract
For receiving frequency shift keyed data, a local oscillator generates a signal which is frequency shifted through a fixed frequency relative to the carrier signal, and is mixed with the received FSK signal. A circuit processes the mixer output to emphasize the energy content of signals located at the ends of the receiver passband, over signals located toward the center of the pass band. The output of that circuit is integrated to provide the AFC signal to the voltage-controlled local oscillator.
Van Rumpt, Herman. (1987). Fsk data receiver (U.S. Patent No. 4669094). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4669094
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile