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:
Nov. 29, 1994
Filed:
May. 21, 1992
Applicant:
Inventor:
Michael E Tubbs, Montgomery, TX (US);
Assignee:
Compaq Computer Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395775 ; 395275 ;
Abstract
An improved programmable logic device programmed to maximize pin usage, and a method of using such a programmable logic device. The programmable logic device is programmed to use a data pin as an input pin by disabling the output buffer driving that pin. Then, when it is desired to drive the data pin as an output pin, the output buffer is enabled, and the pin is driven by a signal generated by the combinatorial logic on the programmable logic device.