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:
May. 20, 2014
Filed:
Oct. 25, 2010
Shih-chieh Yen, Hsinchu Hsien, TW;
Yao-chi Wang, Hsinchu Hsien, TW;
Ming-yu Hsieh, Hsinchu Hsien, TW;
Shih-Chieh Yen, Hsinchu Hsien, TW;
Yao-Chi Wang, Hsinchu Hsien, TW;
Ming-Yu Hsieh, Hsinchu Hsien, TW;
MStar Semiconductor, Inc., , TW;
Abstract
An offset phase-locked loop (PLL) transmitter comprises a clock generator that generates a first clock signal; a detector that detects a phase difference between an input data signal and a feedback data signal to generate a control signal; a controlled oscillator, coupled to the detector, that generates an output data signal according to the control signal; a mixer, coupled to the controlled oscillator and the clock generator, that mixes the output data signal according to the first clock signal to generate the feedback data signal; and a control circuit, coupled to the detector and the controlled oscillator, that adjusts the operating frequency curve of the controlled oscillator by one of a first step distance and a second step distance smaller than the first step distance such that the control signal is substantially equal to a predetermined value.