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.

Date of Patent:
Sep. 18, 1990

Filed:

Oct. 27, 1988
Applicant:
Inventors:

Takashi Nishibe, Kanagawa, JP;

Shotaro Yokoyama, Kanagawa, JP;

Assignee:

Fuji Electric Co., Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F / ;
U.S. Cl.
CPC ...
377 20 ; 377 44 ; 328 61 ; 3281291 ;
Abstract

A circuit for generating clock signals includes a reference clock signal generator and a 1/N frequency divider for generating 1/N frequency divided clock signals. An up-counter counts the 1/N frequency divided clock signals until the occurrence of a first event. A programmable counter receives both an inverted count result as an initial value from the up-counter and the reference clock signals and counts the reference clock signals up to a predetermined count. When the programmable counter reaches the predetermined count it outputs a carry signal and is reset back to the initial value. As the programmable counter again counts from the initial value to the predetermined count, it again outputs a carry signal. These plurality of carry signals can be counted to provide a count corresponding to the amount of time between the occurrence of plurality of events.


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