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:
Mar. 30, 1982
Filed:
Sep. 02, 1980
Applicant:
Inventors:
Ashfaq R Khan, Elmhurst, IL (US);
Max S Macrander, Warrenville, IL (US);
Konstanty E Krylow, Chicago, IL (US);
Assignee:
GTE Automatic Electric Labs Inc., Northlake, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; H04Q / ;
U.S. Cl.
CPC ...
179 / ; 364900 ; 371-8 ;
Abstract
A circuit which selects and enables one of a plurality of clock circuits. Logic circuitry is used to detect failure of an on line clock circuit, scan a plurality of available clock circuits in a predetermined sequence and place the next available properly operating clock circuit on line.