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US 8,432,438 B2Granted
Device for dimming a beacon light source used in a light based positioning system
AssigneeBytelight, Inc.
InventorsDaniel Ryan, Aaron Ganick
Life of this patent
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AssigneeBytelight, Inc.
InventorsDaniel Ryan, Aaron Ganick
Estimating the term…
In one aspect, the present disclosure relates to a dimmable beacon light source for a light based positioning system. In some embodiments, the light source includes a dimmer control switch configured to generate a dimmer signal having a desired light output level, a dimmable driver for controlling the light output of the light source, and a modulator for receiving the dimmer signal from the dimmer control switch, generating a digital pulse recognition signal by controlling the frequency of the dimmer signal to a desired frequency value, and transmitting the digital pulse recognition signal to the dimmable driver to drive the light output of the light source. In some embodiments, the digital pulse recognition signal is a pulse width modulated signal. In some embodiments, the digital pulse recognition signal has a duty cycle based on the dimmer signal.
A dimmable beacon light source for a light based positioning system comprising:
Dependencies are inferred from the claim text.