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. 09, 2003
Filed:
May. 16, 2002
Kouichi Uesaka, Kawasaki, JP;
Kenichi Shinbo, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electromagnetic wave source detecting apparatus may include a plurality of probes for measuring intensities of an electric field or magnetic field generated from an object to be measured at each measuring position. Calculation means may calculate a phase difference or time difference between electric fields or magnetic fields associated with the probes from the electric field or magnetic field intensities measured by the individual plural probes. A position of an electromagnetic wave source existing in the measured object may be calculated and identified by using the phase difference or time difference thus calculated. A magnitude of a current existing in the electromagnetic wave source at the position thus calculated may be identified on the basis of the electric field or magnetic field intensities thus measured.