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. 02, 1999
Filed:
Nov. 29, 1995
Applicant:
Inventors:
Amos Intrater, Netanya, IL;
Erez Bar-Niv, Raanana, IL;
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
39575005 ; 395821 ; 39518212 ;
Abstract
A method and apparatus for waking up a computer system using a peripheral device connected to a standard parallel port of the computer system. Functionality is added to the parallel port Select line normally used to indicate that the peripheral device connected to the parallel port is on line when the select signal is high. A signal transition on the Select line from low to high is detected and used to wake up the computer system. This toggling of the Selected line is detected and used to activate the computer system power supply into a normal operating state from a power save state.