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:
Jan. 25, 2005
Filed:
Nov. 19, 2003
Yi-kuang Wei, Taipei, TW;
Chi Chang, Taipei, TW;
Heng-chen Ho, Taipei, TW;
Via Technologies, Inc., , TW;
Abstract
An output circuit for outputting data with reduced simultaneous switching output skew includes N counts of output buffers and a comparator. The N counts of output buffers receive N counts of bit signals, respectively. At least one of the output buffers includes a delay unit for processing one of the bit signals into a delayed bit signal with an adjustable delay period in response to a delay signal, a pull-up unit electrically connected to the delay unit and a source voltage, and selectively enabled to output the delayed bit signal as a high level, and a pull-down unit electrically connected to the delay unit and a ground voltage, and selectively enabled to output the delayed bit signal as a low level. The comparator is electrically connected to the N counts of output buffers, compares the N counts of bit signals sampled at a first time spot and a second time spot, and generates the delay signal according to the comparing result.