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:
Nov. 02, 1982
Filed:
Apr. 25, 1980
Applicant:
Inventor:
Yasushi Kawakami, Tokyo, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03J / ;
U.S. Cl.
CPC ...
455161 ; 455254 ;
Abstract
In a radio receiver provided with an automatic tuning circuit, a tuning sensitivity adjusting circuit comprises a buffer which extracts a signal received partially-processed from the radio circuit without substantially affecting the audio output, and a change-over circuit which receives the signal from the extracting means, selectively attenuates the signal, and supplies the signal to the automatic tuning circuit as a signal to lock the tuning circuit to a desired frequency.