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:
Apr. 17, 2001
Filed:
Aug. 24, 1998
Karl H. Renner, Dallas, TX (US);
Apparajan Ganesan, Austin, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A video decoder circuit is provided with automatic AGC bias voltage calibration. The video decoder circuit has an input for receiving a video signal that is capacitively coupled to an analog front-end circuit. The decoder circuit includes a microprocessor-based control circuit coupled to the analog front-end circuit. The control circuit includes a bias circuit, a gain interface circuit for changing the amplitude of the video signal prior to filtering in a filter circuit, an offset circuit for changing the DC-level shift of the video signal, and a switching circuit for switching into a calibration mode by bypassing the filter circuit and connecting the gain interface circuit directly to an analog-to-digital conversion circuit of the analog front-end circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile