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. 10, 1990
Filed:
Apr. 27, 1988
Yves C Faroudja, Los Altos, CA (US);
Jack J Campbell, San Francisco, CA (US);
Other;
Abstract
A method is disclosed for reducing bandwidth of a chrominance path to reduce cross-color artifacts in a quadrature modulated color television signal. The method includes the steps of detecting the level of a chrominance component of the signal; developing a control signal from the detected chrominance component level; and, controlling the bandwidth of the chrominance path in accordance with the control signal so as to reduce bandwidth only when chrominance component is at a level below a predetermined threshold. The method for developing a control signal may further include the step of eliminating the sign thereof followed by a step for establishing a predetermined minimum threshold value of the absolute value chrominance level below which the control signal is not generated.