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:
Jun. 16, 1998
Filed:
Nov. 07, 1995
Applicant:
Inventor:
Andrew Cheng, Hsinchu, TW;
Assignee:
Holtek Microelectronics, Inc., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
307125 ; 307116 ; 307126 ; 307139 ; 307140 ;
Abstract
A computer keyboard power saving method includes sensing if there is keystroke action taking place. When time period of no keystroke action exceeds a pre-set threshold, power supply to the keyboard will be shut down automatically. When a keystroke action is detected, power supply to the keyboard will be resumed instantly. Thus can save energy when keyboard is idle from time to time.