Accession Number : ADD002629

Title :   Optical-to-Electronic Interface Circuit.

Descriptive Note : Patent,


Personal Author(s) : Williams,Donald N

Report Date : 27 May 1975

Pagination or Media Count : 5

Abstract : The patent describes an optical-to-electronic interface circuit for converting digital signal information in the form of light energy into commensurate digital electronic signals. A photoresponsive means is positioned to receive light signals for developing commensurate electrical signals. A first differential amplifier is connected to receive the electrical output signals as a first input and also a known fixed reference as a second input for generating first and second output signals having a differential therebetween as a function of the differential between its received inputs. First and second unidirectional current paths connect the first and second output signals of the first differential amplifier as inputs to a second differential amplifier. A differential comparator receives the output signals developed by the second differential amplifier for generating a signal as a function of the difference between its received signals.

Descriptors :   *Optoelectronics, *Converters, *Patents, Digital systems, Interfaces, Circuits, Signal processing

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE