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:
Sep. 29, 1992
Filed:
May. 23, 1990
Masahiro Ishikawa, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A digital noise eliminator whose noise elimination time (noise pulse width or noise frequency) can be determined by the shift time of a shift register activated in response to a reference clock comprises a shift circuit for transmitting an input signal at a second time of the up-edge of the clock as an output signal, only when at least two up-edges of the clock are included in the single input signal, after the input signal has been inputted, and for eliminating noise when only one up-edge of the clock is included in the single input signal; a setting circuit for setting the shift circuit when the input and output signal levels are both at high level; and a reset circuit for resetting the shift circuit when the input and output signal levels are both at low level.