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:
Apr. 15, 2003
Filed:
Jan. 08, 1999
Daniel M. Kuchta, Patterson, NY (US);
Albert X. Widmer, Katonah, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A diagnostic system utilizes a monitor photodiode and a laser from a fiber optic data link transceiver to perform diagnostic measurements on the fiber optic data link. The diagnostic system includes a multiplexer connected between the encoder and the laser driver of the fiber optic data link. The multiplexer is controlled by a normal op/test mode selector and receives a pulse or pattern for the test mode from a pulse/pattern generator. A signal from the monitor photodiode flows into a pulse/pattern detection circuit which signals a register if a pattern is found. After a reflected pulse is detected, the register captures a count and forwards it to a service processor or system to be analyzed.