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. 07, 1995
Filed:
May. 26, 1993
Sakae Sugayama, Moriguchi, JP;
Takao Asami, Atsugi, JP;
Kenji Kato, Tokyo, JP;
Akira Maeta, Tottori, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Clarion Co., Ltd., Tokyo, JP;
Tottori Sanyo Electric Co., Ltd., Tottori, JP;
Abstract
A controller for AGC recognizes a signal level broader than an AGC control output from an AGC circuit and also recognizes a signal level (a desired station signal level) in a narrow-band by an output from an S-meter. No interference, or the occurrence of 2-signal interference or inter modulation interference can be detected from a change ratio of the desired station signal at the time of the alteration of attenuation values of these two signal levels and an RF signal. In consequence, a proper regulation of the RF signal attenuation value can be carried out in accordance with the presence or absence of the interference and the kind of interference, whereby the suitable receive of the signal can always be achieved.