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:
Nov. 15, 2011
Filed:
Jan. 26, 2010
Ta-i Liu, Taipei, TW;
Chung-chih Tung, Taipei, TW;
Ta-I Liu, Taipei, TW;
Chung-Chih Tung, Taipei, TW;
Other;
Abstract
A digital pulse width modulation device includes a counter, a first comparator and a second comparator, wherein the first and second comparators are connected in parallel with each other and in series with the counter. The counter is capable of sending a count signal to the first and second comparators simultaneously, starting a count when the counter receives a clock signal, and transmitting the count signal to the first and second comparators. If the first comparator receives a pulse duty width signal, the count of the count signal will generate a pulse output of the corresponding duty cycle. If the second comparator receives a total pulse duty length signal and the count of the count signal reaches a number of the total length, a clear signal will be outputted to the counter to reset the counter to zero, so as to achieve the effect of correcting the output pulse.