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:
Mar. 09, 1999
Filed:
Sep. 08, 1997
Applicant:
Inventor:
Fujio Ishihara, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
327202 ; 327203 ; 327208 ; 327211 ;
Abstract
A master portion may introduce input data thereinto in a low level period of a clock and then hold and output the input data therefrom in a high level period of the clock. A slave portion may introduce input data thereinto in the high level period of the clock and then hold and output the input data therefrom in the low level period of the clock. Two exclusive NOR circuits may compare present logic values of the input data with logic values in a preceding half period of the clock to determine coincidences therebetween respectively, and then control output states of the input data held in the master portion and the slave portion based on results of their comparisons.