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:
Feb. 04, 2014
Filed:
Oct. 15, 2010
Zhibing Liu, San Jose, CA (US);
Jay Liang, Los Altos, CA (US);
Zhibing Liu, San Jose, CA (US);
Jay Liang, Los Altos, CA (US);
Synaptics Incorporated, San Jose, CA (US);
Abstract
A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal including a predetermined frequency spread value and a frequency ratio and a receiver receiving the spread-spectrum video signal. The receiver includes a frequency synthesizer, a free-running clock generator configured to generate a free-running clock signal, wherein the free-running clock signal is used as a reference clock signal input to the frequency synthesizer. The receiver further includes a digital control logic circuit configured to separate the frequency ratio from the spread-spectrum video signal, and a line buffer coupled to the digital control logic circuit and the frequency synthesizer, the line buffer adjusting the frequency ratio and sending the adjusted frequency ratio to the frequency synthesizer, wherein the frequency synthesizer combines the free-running clock signal and the adjusted frequency ratio, and outputs a de-spread clock signal.