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:
Sep. 12, 1989
Filed:
Jul. 18, 1988
Applicant:
Inventors:
Carl Bonke, Rancho Santa Margarita, CA (US);
Han Jen, Diamond Bar, CA (US);
Marc Goldstone, Irvine, CA (US);
Assignee:
Western Digital Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G05B / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307475 ; 307242 ; 307473 ; 307468 ; 364716 ; 34082591 ;
Abstract
The invention provides a circuit for use with a standard bidirectional databus having an active current device providing a first logic level in combination with a selectably jumpered passive resistance device providing a second logic level, the active element responsive to an enable signal whereby tristating the bus write drivers and reading the bus will sense a configuration determined by selection of the jumper.