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:
Oct. 22, 2002
Filed:
Mar. 01, 2000
Edward L. Arnn, Torrance, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A system and method for processing the output of a fiber-optic gyroscope. The inventive circuit ( ) includes a photodetector ( ) for detecting electromagnetic energy received from the fiber-optic gyroscope ( ) and providing an analog input signal in response thereto. An analog-to-digital converter ( ) is provided for processing the analog input signal and providing a digital signal in response thereto. A source ( ) is provided for injecting a dither signal between the photodetector ( ) and the analog-to-digital converter ( ). In the illustrative embodiment, the source ( ) supplies a triangle wave signal. The output of the photodetector ( ) is supplied to the summing input of a differential amplifier ( ) and the output of the source ( ) supplies the differencing input to the differential amplifier ( ). The output of the analog-to-digital converter ( ) is provided to a digital signal processor ( ) as per usual practice.