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, 2017
Filed:
May. 09, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Yuichi Nishino, Tokyo, JP;
Hidenobu Tsuji, Tokyo, JP;
Hideaki Ochimizu, Tokyo, JP;
Nobuki Kotake, Tokyo, JP;
Masaharu Imaki, Tokyo, JP;
Shumpei Kameyama, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An S/N calculation circuitto calculate the S/N ratio of a received signal, and an S/N comparison circuitto compare the S/N calculated by the S/N calculation circuitwith a threshold Th are disposed, and a parameter setting circuitcontrols the radiation state of a beam radiated from a transmission optical systemaccording to the result of the comparison performed by the S/N comparison circuit. As a result, even if the state of the propagation environment gets worse, degradation in the communication quality can be prevented and communicative stabilization can be achieved.