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. 18, 1987
Filed:
Jan. 11, 1984
John M Holland, Shawsville, VA (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
A fiber optic receiver having a baseline clamp with two clamping diodes. A first diode has a cathode coupled to a source of a first signal, while a second diode has a cathode coupled to a source of a second signal, identical to the first signal but shifted by 180.degree. in phase from the first signal. The anodes of the two diodes are coupled to each other and to a common potential. A first detecting transistor in an AGC detector has a base connected to the first signal source and to the cathode of the first diode. A second detecting transistor in the AGC detector has a base coupled to the second signal source and to the cathode of the second diode, has an emitter coupled to an emitter of the first transistor, and has a collector coupled to the collector of the first transistor.