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.

Date of Patent:
Dec. 29, 1992

Filed:

Apr. 30, 1990
Applicant:
Inventors:

Hiroyuki Mita, Kanagawa, JP;

Kozo Kobayashi, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
4552341 ; 455260 ; 455263 ; 455266 ;
Abstract

An apparatus for receiving broadcast FM waves using an FM (Frequency Modulated) detector is disclosed in which an output signal level of an automatic gain controller (AGC) is controllable so that when the C/N ratio is reduced and the output level of the automatic gain controller is reduced, the loop gain of a PLL type FM demodulator is accordingly reduced and response is delayed with the bandwidth being narrowed . Therefore, since delayed threshold extension is applied thereby, no signal noise, such as white points appearing on an image screen, will occur.


Find Patent Forward Citations

Mita, Hiroyuki. (1992). Fm signal detection apparatus with automatic gain control circuit (U.S. Patent No. 5175881). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5175881

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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