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:
May. 25, 1993
Filed:
Nov. 19, 1990
Kenneth L Bush, Cypress, TX (US);
Ralph S Perry, Houston, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
In a desktop computer, a hard disk drive activity indicator such as an LED is mounted on the front panel, remote from its associated hard disk drive which is mounted in the back of the housing. The LED is triggered in response both I/O writes for addresses reserved for use with the hard disk, and interrupt requests generated by the hard disk drive. Triggering logic on the motherboard of the computer detects these conditions, and a retriggerable monostable multivibrator which activates the LED. The LED is coupled to the triggering logic with by a conductor that need not be added as an additional part or assembly but instead is within an already-existing assembly such as the power supply.