Patent ID: 11959800
Assignee: LUMILEDS, LLC
Field: Measurement (Instruments)
Classification: CPC G  B  H  Y | IPC B  G  H

Claim 19:
20. A method for communicating between automotive vehicles, the method comprising:
illuminating, with a headlight, a portion of a road ahead of a vehicle having an automotive communication system;
exchanging communications with an oncoming vehicle via light transmission and detection through the headlight,
determining, via the exchanged communications, which vehicle is to perform a function including at least one function selected from: switching off its headlights and dimming its headlights, the headlight including a segmented LED chip including a plurality of LEDs that are separated by trenches formed on the segmented LED chip, the LEDs in the plurality being arranged in a plurality of sections, each section including at least one first LED and at least one second LED configured to function as a detector;
applying a forward bias to the first LEDs such that the first LEDs function as emitters to provide the exchanged communications; and
applying a reverse bias to the second LEDs such that the second LEDs function as detectors to receive the exchanged communications.