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. 05, 2013
Filed:
Mar. 23, 2010
Horng-bin Wang, Chiang-Hwa, TW;
Hsin Chou Lee, Jhubei, TW;
Horng-Bin Wang, Chiang-Hwa, TW;
Hsin Chou Lee, Jhubei, TW;
Generalplus Technology Inc., Hsinchu, TW;
Abstract
The invention relates to a power saving method in a sleep mode and a keyboard controller using the same. The method is adapted for a triangular-type scan keyboard controller including a plurality of input/output (I/O) pins. The method includes the steps of: providing a first clock source and a second clock source, wherein the frequency of the second clock source is much lower than the frequency of the first clock source. In a normal mode, a scan pulse is sequentially outputted from the I/O pins according to the frequency of the first clock source. In a sleep mode, the scan pulse is sequentially outputted from the I/O pins according to the frequency of the second clock source. When a specific one of the I/O pins outputs the scan pulse, the other I/O pins are used for detecting.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile