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. 27, 1998
Filed:
Mar. 15, 1996
Applicant:
Inventor:
Yoshimi Kanda, Kyoto, JP;
Assignee:
Omron Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375316 ; 375355 ;
Abstract
A series connection of a rectification diode and a voltage clipping circuit is connected to a resonance circuit. The voltage clipping circuit is a parallel connection of a resistor and a diode. A constant voltage circuit is connected to the voltage clipping circuit. Since no current flows through the voltage clipping circuit during residual resonance, a signal having a ripple component on top of a stabilized DC voltage appears at the input terminal of the voltage clipping circuit. By shaping the signal having the ripple component, a rectangular-wave signal and a clock signal are extracted, based on which signals a demodulation circuit restores transmitted data.