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. 23, 1989
Filed:
Nov. 12, 1987
Applicant:
Inventor:
Tsuneo Sakai, Iwaki, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ; H04H / ;
U.S. Cl.
CPC ...
381 17 ; 381 10 ; 381 11 ; 381 13 ;
Abstract
An FM stereo receiver includes a level detecting circuit for detecting the received electric field intensity and a pseudo stereo circuit for changing the phase of an entered signal and outputting two signals different in phase. When the level detecting circuit detects a received electric field intensity below a threshold level, monaural signals produced from outputs of a stereo demodulator are applied to the pseudo stereo circuit to produce pseudo stereo signals.
Quick Actions:
Sakai, Tsuneo. (1989). Fm stereo receiver (U.S. Patent No. 4833715). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4833715
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile