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. 23, 1995
Filed:
Dec. 14, 1993
Bruce E Whittaker, Mission Viejo, CA (US);
Saul Barajas, Capistrano Beach, CA (US);
Leland E Watson, Mission Viejo, CA (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
In a digital data transfer system whereby a plurality of driver units are all connected to and share the same common system bus, there is provided control gating logic which will prevent the enablement of a subsequent driver for a fixed delay time until it is certain that the previous driver has been shut down. Due to switching time variations in driving units, a fixed delay time is set to function in a first driver that is beginning its data transmission to be sure that another driver which was previously transmitting data has been completely turned-off before the first driver gains access to the commonly shared bus. This ensures that no two drivers can simultaneously be driving data onto the system bus at the same time which would obviate the integrity of data transmitted.