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:
Dec. 01, 1981
Filed:
Sep. 25, 1979
Applicant:
Inventor:
Claude Claverie, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
329103 ; 329126 ; 455214 ; 455337 ;
Abstract
A frequency demodulation device having a circuit for limiting the amplitude of a frequency modulated signal, an integration circuit and a low pass filter. Two successive output signals from the amplitude limiting circuits are integrated in the integrating circuit in accordance with first and second predetermined time constants. The signal is then fed to the filter which extracts the mean value from the output signal of the integrating circuit. This mean value is proportional to the modulated wave frequency and thus determines that frequency.
Claverie, Claude. (1981). Demodulation device for frequency modulated electrical signals (U.S. Patent No. 4303888). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4303888
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile