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:
Dec. 25, 2001
Filed:
Aug. 30, 1999
Hirofumi Okada, Daito, JP;
Munetoshi Kajiya, Daito, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A television receiver includes an input terminal (,). Through the input terminal is inputted an input signal having a predetermined electric field intensity. That is, a tuner (,) converts the input signal into a video intermediate frequency signal and audio intermediate frequency signal. The video intermediate frequency signal is amplified by a video intermediate frequency amplifier circuit (,). Based on that frequency, a filter (,) outputs a detection signal (Va). An RF-AGC circuit (,) outputs a reference voltage (Vref). An RF-AGC circuit (,) creates a control voltage (Vb) in response to a difference between the detection signal and the reference voltage. The tuner is controlled in gain by this control voltage. The reference voltage is varied by a micro-computer (,) depending upon the control voltage. Accordingly, the control voltage is adjusted to a desired voltage value.