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. 30, 1984
Filed:
Jan. 04, 1982
Applicant:
Inventors:
Yoichi Tan, Kanagawa, JP;
Fumio Miyao, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307354 ; 307290 ; 307360 ;
Abstract
The upward and downward transitions of an input signal are independently detected with undirectional hysteresis in opposite directions. The detection signals are then combined to provide a level crossing detection signal having no time lag and immune to small noise signals.