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:
Aug. 16, 1994

Filed:

May. 21, 1992
Applicant:
Inventor:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
377 29 ; 377 55 ; 377116 ;
Abstract

A counter circuit includes a plurality of one-bit counters connected in series. The counter circuit includes first and second input terminals which are supplied with a predetermined signal, respectively, in an operational test mode. The counter circuit further includes a unit for alternately supplying a carry signal to a carry signal input of each one-bit counter in series when the predetermined signals are applied thereto. The unit may be composed of a plurality of OR circuits. Each OR circuit is provided with one input connected to the carry signal output of a one-bit counter at the preceding stage of the series, the other input connected to either the first input terminal or the second input terminal, and an output connected to the one-bit counter at the next stage.


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