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. 15, 2007
Filed:
Sep. 08, 2004
Chun-wei Lin, Kao-Hsiung, TW;
Hsueh-kun Liao, Yun-Lin Hsien, TW;
Chih-ching Chen, Chia-Yi Hsien, TW;
Chun-Wei Lin, Kao-Hsiung, TW;
Hsueh-Kun Liao, Yun-Lin Hsien, TW;
Chih-Ching Chen, Chia-Yi Hsien, TW;
Mediatek Inc., Hsinchu, TW;
Abstract
A digital phase-locked loop circuit includes a counter for outputting a count value corresponding to an output frequency outputted by a voltage controlled oscillator in response to a control voltage signal, a comparator for comparing the count value from the counter with a target value associated with a target frequency output and for outputting a comparison signal according to a comparison result therebetween, a digital reference value generator for outputting a digital reference value according to the comparison signal from the comparator and including a register for storing the digital reference value therein, and a digital-to-analog converter for generating the control voltage signal based on the digital reference value received from the digital reference value generator.