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. 21, 1993
Filed:
Nov. 27, 1990
Applicant:
Inventor:
Francis H Reiff, Mannitou Springs, CO (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
371 295 ; 371 205 ; 371 681 ;
Abstract
A primary transceiver having a driver/receiver initially drives a bus while a secondary transceiver having a driver/receiver receives the signals present on the bus. The system compares the signals received by the secondary driver/receiver and the inputs to the primary driver/receiver. If a difference is detected, the system controller disables the primary driver/receiver and enables the secondary driver/receiver which drives the bus.