Pulsed Light Communication Key
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United States of America Patent
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Issued Date -
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app pub date -
Feb 16, 2017
filing date -
May 24, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A Universal Serial Bus (USB) key may include an optical transceiver having a USB interface for engagement to an electronic device such as a laptop computer or other USB-configured device. The USB key may include a converter or buffering, isolation, modulation or amplification circuitry. The USB key sends and receives data signals which may be carried upon an optical transmission as generated by an LED light source which in turn is in communication with a host device such as a network processor. The USB key may also include operational amplifiers (op-amps) and transistor amplifiers.
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