Raymond J. Cadet - San Jose CA Hung-Nan Chao - San Jose CA Eric Bogatin - San Jose CA Steven C. Leach - Santa Clara CA
Assignee:
Xinix, Inc. - Santa Clara CA
International Classification:
H01J 4014
US Classification:
250214AG
Abstract:
A sensor board for use with an endpoint controller which monitors light intensity is provided. The sensor board can provide a dynamic range of up to five million because a constant current driver and phase sensitive detector help eliminate noise from the detected signal. The sensor board can also subtract a DC voltage offset from the detected signal and amplify the difference to provide increased resolution of small changes in the detected signal.