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:
May. 16, 2000
Filed:
Oct. 14, 1997
Yukio Endo, Tokyo, JP;
Masato Nagamatsu, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A flip-flop circuit consists of a conventional pulse-drive flip-flop plus a clock driver and a local pulse generator that generates a pulse signal according to the output of the clock driver. The flip-flop circuits of this kind are used to form, for example, a shift register in which the clock drivers are connected in series from the last stage toward the first stage. The clock driver in the last stage receives a clock signal, which is successively supplied to the flip-flop circuits from the one in the last stage toward the one in the first stage. This arrangement prevents a data-pass-through problem, assures a sharp waveform of pulse signals, and reduces the size of each clock driver. This type of flip-flop circuits may be used to form logic circuits such as N-bit registers and N-bit shift registers.