Title:
OPTICAL SENSING APPARATUS AND SENSING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/231315
Kind Code:
A1
Abstract:
An optical sensing apparatus and a sensing method thereof. The sensing method comprises: providing a breakdown bias voltage to a photodiode (PD1) (S702); according to a light-sensing signal (S1) generated by the photodiode (PD1) sensing ambient light (L1), calculating the number of breakdown times of the photodiode (PD1) so as to generate a count value (C1) (S704); sampling the count value (C1) to generate a plurality of sampled values (S706); and, according to the sampled values, determining light characteristics of the ambient light (L1) (S708).
Inventors:
SUN PO WEI (CN)
CHEN CHING-WEI (CN)
HU YAO-SHENG (CN)
CHEN CHING-WEI (CN)
HU YAO-SHENG (CN)
Application Number:
PCT/CN2022/132710
Publication Date:
December 07, 2023
Filing Date:
November 18, 2022
Export Citation:
Assignee:
EGIS TECH INC (CN)
International Classes:
G01J11/00; H01L31/00
Foreign References:
| US20060192086A1 | 2006-08-31 | |||
| CN112397542A | 2021-02-23 | |||
| CN111121986A | 2020-05-08 | |||
| CN105895645A | 2016-08-24 | |||
| CN109459149A | 2019-03-12 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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