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:
Dec. 22, 1998
Filed:
Sep. 13, 1996
Applicant:
Inventors:
Nobuo Tamba, Ome, JP;
Mitsugu Kusunoki, Koganei, JP;
Takeshi Miyazaki, Meulo Park, CA (US);
Akira Masaki, Musashino, JP;
Akira Yamagiwa, Kanagawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
326 49 ; 326 40 ; 326 45 ;
Abstract
A variable logic circuit comprises a memory cell, a transistor which turns on or off depending on data stored in the memory cell, a transistor which is connected in series to the above-mentioned transistor and is turned on or off by an input signal, a transistor which produces a voltage depending on the conduction states of the above-mentioned transistors, and transfer means which conducts or does not conduct the produced voltage to the output terminal depending on a select signal.