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. 24, 2012
Filed:
Oct. 20, 2008
Liming Xiu, Plano, TX (US);
Grady Cook, Plano, TX (US);
Daniel Dudek, Flower Mound, TX (US);
Hongbing Lian, Plano, TX (US);
Yihe HU, Frisco, TX (US);
Christopher S. Tracy, Frisco, TX (US);
Liming Xiu, Plano, TX (US);
Grady Cook, Plano, TX (US);
Daniel Dudek, Flower Mound, TX (US);
Hongbing Lian, Plano, TX (US);
Yihe Hu, Frisco, TX (US);
Christopher S. Tracy, Frisco, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
This invention uses a flying adder frequency synthesis circuit to provide the required frequency adjustments to accommodate the varying encoding density of a MPEG2 video data stream. This invention adjusts the local clock based on the information extracted from the program clock reference signal in the incoming data. This invention replaces an external or internal voltage-controlled crystal oscillator using a phase locked loop circuit on the video processing integrated circuit.