Wireless infrared multi-spot diffusing communication system
AssigneeThe Penn State Research Foundation
InventorsMohsen Kavehrad, Svetla Jivkova
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Abstract
An infrared communications system includes a multi-beam transmitter for producing an array of diffusing spots upon a reflecting surface, and a receiver comprising a plurality of receiving elements, where each receiving element has an independent field of view that is in line of sight of at least one of said diffusing spots. The array may be in the form of a regular grid, and the grid of diffusing spots may be formed via the emission from the transmitter of a plurality of collimated beams of equal intensity. The transmitter may include a light source, collimating optics, and a spot array generator, and each of the receiving elements may include a band-pass filter, a concentrator and a photodetector.
Claims17
An infrared communications system comprising:
- a multi-beam transmitter for producing an array of diffusing spots upon a reflecting surface;
- and
- a receiver comprising a plurality of receiving elements;
- wherein each said receiving element has an independent field of view that is in line of sight of at least one of said diffusing spots.
A method of infrared communications comprising:
- producing an array of diffusing spots upon a reflecting surface;
- and
- receiving signals from at least one of said diffusing spots through a plurality of receiving elements, wherein each said receiving element has an independent field of view that is in line of sight of at least one of said diffusing spots.
Dependencies are inferred from the claim text.