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:
Aug. 08, 2006
Filed:
Dec. 17, 2003
Wen-lie Liang, Hsinchu, TW;
Wen-tron Shay, Hsinchu, TW;
Wen-jen Tseng, Kaohsiung, TW;
Jen-ming Ferng, Taoyuan, TW;
Mao-sheng Huang, Taichung, TW;
Wen-Lie Liang, Hsinchu, TW;
Wen-Tron Shay, Hsinchu, TW;
Wen-Jen Tseng, Kaohsiung, TW;
Jen-Ming Ferng, Taoyuan, TW;
Mao-Sheng Huang, Taichung, TW;
Industrial Technology Research Institute, Hsien, TW;
Abstract
An electromagnetic field sensing apparatus includes an optical modulator, a miniature antenna for sensing the electromagnetic field, a light source, a first optical fiber, an optical detector and a second fiber. The optical modulator can vary the amplitude of a light beam propagating therethrough in response to an electric field intensity. The miniature antenna for sensing the electromagnetic field can sense both the electric field intensity and the magnetic field intensity of an electromagnetic field and apply an electric voltage to the optical modulator in response to the sensed electromagnetic field intensity. The light source is used to generate a light beam, the first optical fiber is used for transmitting the light beam to the modulator, and the second fiber is used for transmitting the light beam from the modulator to the optical detector.