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:
Jan. 23, 2007
Filed:
Dec. 29, 2003
Chang Kyu Kim, Daejeon-Shi, KR;
Myung Lae Lee, Daejeon-Shi, KR;
Chang Auck Choi, Daejeon-Shi, KR;
Chi Hoon Jun, Daejeon-Shi, KR;
Chang Kyu Kim, Daejeon-Shi, KR;
Myung Lae Lee, Daejeon-Shi, KR;
Chang Auck Choi, Daejeon-Shi, KR;
Chi Hoon Jun, Daejeon-Shi, KR;
Electronics and Telecommunications Research Institute, Daejeon-shi, KR;
Abstract
A wavelength tunable filter capable of being driven such that reflecting mirrors move more distant as well as closer by using the principle that a direction of the electromagnetic forces changes depending on the direction of the current flowing perpendicular to the external magnetic field. According to the wavelength tunable filter of the present invention, when it is necessary to have the wavelength tuning range and mechanical structure similar to the conventional wavelength tunable filter driven in only one direction, it is possible to lower the maximum force needed to drive the filter to a half, and reduce a probability that a pull-in phenomenon occurs. On the other hand, it is possible to reduce a wavelength change time of the element by increasing a resonant frequency when the same wavelength tuning ranges are implemented by using the same maximum driving forces.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile