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:
May. 15, 2007
Filed:
Feb. 25, 2002
Hirofumi Totsuka, Tokyo, JP;
Kazuo Kubo, Tokyo, JP;
Kuniaki Motoshima, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Chiyoda-Ku, Tokyo, JP;
Abstract
An optical transceivercomprises first and second pseudo-random pattern generatorsandfor generating a pseudo-random pattern signal, which are placed in a transmitting side pathand in a receiving side pathof the optical transceiver, respectively; first and second pseudo-random pattern detectorsandfor evaluating an inputted pseudo-random pattern signal, which are placed in the transmitting side pathand in the receiving side pathof the optical transceiver, respectively; a first loopback paththat loops back from a multiplexing circuitto a demultiplexing circuit; and a second loopback paththat loops back from a light-electricity converterto an electricity-light converter