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:
Feb. 10, 2004
Filed:
Aug. 09, 2002
Ying-Lang Chuang, Kaohsiung, TW;
Via Technologies, Inc., Taipei, TW;
Abstract
A generating a digital wave apparatus is provided. The period of a basic clock signal is divided into a plurality of time points, and the level of the highly accurate digital wave is toggled at these time points. The apparatus comprises a delay phase lock loop, for generating a plurality of delayed clock signals according to the basic clock signal; a first multiplexer and a second multiplexer for outputting one of the delayed clock signals according to a first select signal and a second select signal, respectively; a first edge-triggered flip-flop and a second edge-triggered flip-flop for receiving the output signals of the first multiplexer and the second multiplexer respectively; and a logic gate for outputting the digital wave according to the outputs of the first and the second edge-triggered flip-flops. The digital wave is toggled according to the first select signal, and further toggled according to the second select signal. The apparatus of the invention uses the low frequency clock signal to generate a highly accurate digital wave, and can save cost in comparison with the conventional apparatus that uses the high frequency clock signal.