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. 04, 1980
Filed:
Mar. 28, 1978
Applicant:
Inventors:
Makoto Honma, Hamurs, JP;
Takao Inoue, Kodaira, JP;
Assignee:
Hitachi, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04H / ;
U.S. Cl.
CPC ...
179 / ; 325478 ;
Abstract
An FM noise suppressor comprising a detector circuit which detects noise pulses included in a detected stereo composite signal, a gate circuit which is enabled or disabled by an output from the detector circuit, and a reproducing circuit which receives the stereo composite signal without intervention of the gate circuit and which reproduces a subcarrier signal for FM stereo signal demodulation in synchronism with a pilot signal included in the received stereo composite signal. A decoder demodulates stereo signals on the basis of an output signal of the gate circuit and the output signal of the reproducing circuit.