G - Physics
02
F
325/1, 340/155
G02F 1/00 (2006.01) G01J 1/44 (2006.01) H03G 1/00 (2006.01) H04B 10/08 (2006.01) H04B 10/158 (2006.01)
Patent
CA 1180080
14 PHN 9964 ABSTRACT: An optical receiver comprises a photodiode which is connected to a biasing circuit, and also to the output of the receiver via the series arrangement formed by a preamplifier, a control amplifier and an output amplifier, the output of the receiver being connected to the control input of the control amplifier via a detector and a differ- ential amplifier. The control amplifier is what is com- monly referred to as a differential controller, in which alternating current and direct current are processed in the same manner. As a consequence thereof, it is possible to determine the optical input level of the receiver con- tinuously at the output of the control amplifier by means of a simple ammeter.
397120
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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