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:
Aug. 10, 2010
Filed:
Feb. 08, 2008
Chih-chien Huang, Yunlin County, TW;
Chih-ching Chen, Miaoli County, TW;
Yuh Cheng, Hsin-Chu Hsien, TW;
Chien Ming Chen, Hsinchu, TW;
Chih-Chien Huang, Yunlin County, TW;
Chih-Ching Chen, Miaoli County, TW;
Yuh Cheng, Hsin-Chu Hsien, TW;
Chien Ming Chen, Hsinchu, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
A device for processing a radio frequency (RF) signal of an optical disk drive includes a high-pass (HP) filter, an RF variable gain amplifier (VGA), an RF analog-digital converter (ADC), and a digital module. The HP filter filters the RF signal and is capable of selectively utilizing one of a first cut-off frequency and a second cut-off frequency. The RF VGA amplifies the filtered RF signal. The RF ADC converts the amplified RF signal into a digital code. The digital module is capable of executing a first function and a second function with the digital code. The HP filter utilizes the first cut-off frequency when the digital module desires to execute the first function, and the HP filter utilizes the second cut-off frequency when the digital module desires to execute the second function.