Systems and methods for biasing light detectors

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11921237
APP PUB NO 20220291356A1
SERIAL NO

17828508

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An example circuit includes a light detector and a biasing capacitor having (i) a first terminal that applies to the light detector an output voltage that can either bias or debias the light detector and (ii) a second terminal for controlling the output voltage. The circuit includes a first transistor connected to the second terminal of the biasing capacitor and configured to drive the output voltage to a first voltage level above a biasing threshold of the light detector and thereby biasing the light detector. The circuit includes a second transistor connected to the second terminal of the biasing capacitor and configured to drive the output voltage to a second voltage level below the biasing threshold of the light detector and thereby debiasing the light detector. The second voltage is a non-zero voltage that corresponds to a charge level of the biasing capacitor.

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Patent Owner(s)

  • WAYMO LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Droz, Pierre-yves Los Altos, US 227 4477
Gutnik, Vadim Mountain View, US 44 784

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