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:
Aug. 21, 2001
Filed:
Aug. 09, 1999
Applicant:
Inventor:
Shigeyuki Hayakawa, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 1/920 ; H03K 1/9094 ;
U.S. Cl.
CPC ...
H03K 1/920 ; H03K 1/9094 ;
Abstract
A logic circuit determines the logic based only on a change in electric current. The logic circuit comprises a logical value determination circuit, a reference current generator, and a current sense amplifier. The logical value determination circuit defines a logical current flowing in response to multiple logic-signals. The reference current generator produces a reference current which is used to determine whether the logical current defined by the logical value determination circuit is true or false. The current sense amplifier detects and amplifies a difference between the logic current and the reference current.