LED light dongle communication system
A Universal Serial Bus (USB) dongle 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 dongle may include a converter or buffering, isolation, modulation or amplification circuitry. The USB dongle 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 dongle may also include operational amplifiers (op-amps) and transistor amplifiers.
1. A light emitting diode light communication device comprising:
a housing;
at least one optical transceiver comprising at least one light emitting diode and at least one photodetector, and
a universal serial bus interface in communication with said at least one optical transceiver,
said optical transceiver being constructed and arranged for engagement to, and communication with, at least one electronic device,
said optical transceiver being further constructed and arranged for transmission of at least one transmitted light signal comprising light in the visible spectrum and receipt of at least one received light signal comprising light in the visible spectrum,
said at least one received light signal being observable to unaided eyes of an individual as illumination,
said at least one received light signal comprising a plurality of rapid flashes of light, said rapid flashes of light in the visible spectrum having a frequency which is not observable to the unaided eyes of said individual, wherein said rapid flashes of light in the visible spectrum are configured for transmission of information or data, said information or data comprising at least one optical transceiver identifier, at least one destination optical transceiver location identifier and at least one intermediate optical transceiver location identifier.
2. The light emitting diode light communication device according to claim 1 , wherein said at least one light emitting diode and said at least one photodector are isolated from emitter-receiver feedback.
3. The light emitting diode light communication device according to claim 1 , wherein said at least one transmitted light signal and said at least one received light signal are observable to the unaided eyes of an individual.
4. The light emitting diode light communication device according to claim 1 , wherein said at least one transmitted light signal comprises a plurality of rapid flashes of light in the visible spectrum, said rapid flashes of light in the visible spectrum having a frequency which is not observable to the unaided eyes of said individual.
5. The light emitting diode light communication device of claim 1 , said information or data comprising global positioning system information.
6. The light emitting diode light communication device of claim 1 , said optical transceiver further comprising a converter.
7. The light emitting diode light communication device of claim 6 , said optical transceiver further comprising buffering circuitry.
8. The light emitting diode light communication device of claim 7 , said optical transceiver further comprising isolation circuitry.
9. The light emitting diode light communication device of claim 8 , said optical transceiver further comprising modulation circuitry.
10. The light emitting diode light communication device of claim 8 , said optical transceiver further comprising amplification circuitry.