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:
Nov. 23, 1976
Filed:
Mar. 08, 1976
Applicant:
Inventor:
David William Davenport, Raleigh, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
328 38 ; 307216 ; 307208 ; 3072 / ; 328 16 ; 328 56 ;
Abstract
This invention discloses a structure whereby a fixed frequency machine clocking signal can be multiplied in frequency by any desired integral value. The device uses a tapped delay line having a total time delay slightly less than the time of one-half cycle of the clocking signal and an exclusive-OR tree connected to the taps of the delay line to generate a higher frequency output clock signal. By interposing a known frequency division network to the input of the delay line, the output clock signal can be generated with any desired rational relationship to the driving clocking signal.