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. 22, 2012
Filed:
Sep. 08, 2008
Harufusa Kondo, Tokyo, JP;
Tetsuhiro Fukao, Tokyo, JP;
Mutsumi Nakamaru, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A control circuit for an optical transmitter/receiver that transmits/receives an optical signal, comprises: a memory having a digital value storage area and an area that stores limit values; a register; an analog/digital conversion circuit that receives analog signals indicating operating parameters of the optical transmitter/receiver, converts the analog signals to respective digital values, and stores the digital values in the memory; a comparison logical circuit that compares the digital values with the limit values, generates flag values, and stores the flag values in the register; and an outside interface that allows an outside host apparatus to access the memory and the register to read the flag values and monitor an operating condition of the optical transmitter/receiver from outside.