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:
Apr. 03, 2001
Filed:
Nov. 09, 1998
Applicant:
Inventor:
Toshihide Nagatome, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/9094 ; H03K 1/90175 ;
U.S. Cl.
CPC ...
H03K 1/9094 ; H03K 1/90175 ;
Abstract
An input circuit is provided with a gate with an input end thereof connected to an input terminal to which an external signal is input, the gate allows or prohibits the output of the external signal in accordance with a control signal. The input circuit also includes a latch circuit that holds the output from the gate and outputs the signal thus held to an internal input terminal. This structure prevents any inflow of a through current, and prevents erroneous operation of an internal circuit resulting from change in the signal level at the internal input terminal.