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:
Jul. 01, 2008
Filed:
Jul. 01, 2003
Joost Maarten Zitzmann, Nijmegen, NL;
Freek Egbert Van Straten, Nijmegen, NL;
Joost Maarten Zitzmann, Nijmegen, NL;
Freek Egbert Van Straten, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
An optical receiver circuit comprising an optical converter circuit (), comprising a photodiode and converting optical power into electrical power, a sensor circuit for deriving a control voltage VCONTR as a characteristic value of the electrical power output by the optical converter circuit (); and an attenuator circuit () having a variable attenuation, the attenuation being controlled by the characteristic value of the electrical power output by the sensor circuit so as to obtain a constant output signal level of the optical receiver circuit. An output circuit is also provided and comprises a matching network (), an amplifier stage () and an output transformer ().