Semiconductor device performing proximity sensing

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12189028
APP PUB NO 20220326378A1
SERIAL NO

17717929

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Abstract

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A semiconductor device includes a signal conversion circuit configured to convert a sensing current provided from a sensing element into a sensing voltage; an analog-to-digital converter (ADC) configured to convert the sensing voltage to a digital value; and a driving circuit configured to drive a light emitting element, wherein the ADC generates a digital value corresponding to proximity to an object by performing a primary operation comparing a ramp signal varying with time and the sensing voltage while the light emitting element is not driven and a secondary operation comparing the ramp signal and the sensing voltage while the light emitting element is driven.

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Patent Owner(s)

  • SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Hyunjong Seoul, KR 25 34
Kim, Suhwan Seoul, KR 123 786
Rhee, Cyuyeol Seoul, KR 3 0

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