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:
Oct. 25, 1994

Filed:

Jul. 15, 1992
Applicant:
Inventor:

Koichiro Aoyama, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
377 73 ; 377 78 ; 3072723 ;
Abstract

A register control circuit has a plurality of registers, a control circuit for producing clock signals, and a logic circuit for producing latch clocks based on a reset signal and the clock signals. A shift data is inputted to a first one of the plurality of registers through a 2-input AND gate. The latch clocks are forced to become active simultaneously under a state in which an input to the first stage register being controlled to '0'. The shift register is initialized in such a way that a '0' input is sequentially transferred from the first stage register to the final stage register. The shift register can be formed without the need of registers having reset inputs and initialized speedily, while keeping the increase in the device elements at the minimum.


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