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:
Oct. 31, 1989
Filed:
May. 27, 1988
Masayuki Kokado, Machida, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A semiconductor integrated circuit having an emitter follower circuit coupled with an output of a logic circuit includes the following. A first emitter follower circuit receives an output signal of a logic circuit such as an emitter coupled logic circuit. An output signal obtained at an emitter output of the first emitter follower circuit forms a finalized output signal of the logic circuit. A second emitter follower circuit receives a signal in phase with the output signal of the logic circuit. A detecting circuit detects a difference in level between the output signal of the first emitter follower circuit and an output signal of the second emitter follower circuit. A driving circuit drives a load capacitance coupled with the emitter output of the first emitter follower circuit during a period when the detecting circuit detects the difference.