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. 07, 2004
Filed:
Mar. 21, 2003
Applicant:
Inventors:
Noboru Endo, Okazaki, JP;
Yasuaki Makino, Okazaki, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/302 ;
U.S. Cl.
CPC ...
G01R 3/302 ;
Abstract
A magnetic sensor apparatus has a ring circuit constructed with an odd number of semiconductor magnetic sensors connected in a ring shape. The drain regions of each magnetic sensor are separated from each other, so that currents flowing into the drain regions vary corresponding to the magnitude of the applied magnetic field. The semiconductor magnetic sensors function as inverters and inverting operations thereof cause time delay variable with the magnetic field strength. Digital data indicating a propagation condition of a pulse signal within the ring circuit correspond to the magnetic field.