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:
Jan. 01, 1991
Filed:
Nov. 09, 1989
Applicant:
Inventors:
Yasurou Matsuzaki, Tami, JP;
Yuji Tsuchimoto, Kawasaki, JP;
Yoshikazu Mutoh, Kawasaki, JP;
Masaki Takahashi, Mizusawa, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307480 ; 307481 ; 307446 ; 307451 ; 307452 ; 307453 ; 307291 ;
Abstract
An address transition detector circuit detects a transition of an address signal. The address transition detector circuit has a first circuit part which includes two field effect transistors which are coupled in series and simultaneously turn ON when an address transition is detected, and a second circuit part which includes a bipolar transistor for discharging so that a transition detection signal changes its level immediately after the address transition is detected in the first circuit part.