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:
Jun. 07, 1994
Filed:
Mar. 20, 1992
Applicant:
Inventors:
Steven Ho, Westford, MA (US);
Niamh Darcy, Boxboro, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375106 ; 307269 ;
Abstract
A clock mechanism in modules connected to a bus over which asynchronous operations are performed wherein clock pulses are generated that can clock the transmission or capture of data and the transitioning of acknowledge or synchronization lines. Each clock mechanism generates its clock pulses based on the receipt of signals associated with synchronization or acknowledge bus lines. The clock mechanism includes a multiplexer which provides to a resettable latch a signal associated with the condition of the selected line. The resettable latch, in conjunction with a delay element produces the clock pulses.