Circuit for increasing the sensitivity of a photodiode to receiv

Details Circuit for increasing the sensitivity of a photodiode to receiv Circuit for increasing the sensitivity of a photodiode to receiv

1995-05-01

1996-08-13

Boudreau, Leo

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

359142, 359146, 359189, H04B 1000, H01J 4014

Patent

active

055458912

ABSTRACT:
A system for operating electronic audio equipment and other components located inside a closed cabinet receives an infrared signal from a hand held remote control device anywhere in the room, and transmits the signal directly to the signal receiver of each component inside the cabinet. An infrared receiver eye of the system is positioned where it is optically exposed to the infrared signals within the room, such as in an exposed bore of the cabinet adjacent to the gap between doors of the cabinet. The signal received at the receiver eye is repeated by a main transceiver and delivered to individual emitters at the electronic components such as VCR or stereo audio components. In a preferred embodiment the transceiver has a repeater which receives the infrared signal and repeats it in an electrical signal sent through wires to infrared emitters dedicated to each component, where the same infrared signal received by the transceiver is repeated at the components. A circuit is disclosed for enhancing the sensitivity of the receiving photodiode at the cabinet.

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