Time-of-flight sensing device and method thereof

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United States of America Patent

PATENT NO 12092767
APP PUB NO 20230243939A1
SERIAL NO

18299039

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Abstract

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A method of a sensing device, comprising steps of emitting, by a light source of the sensing device, a light pulse in each of n cycles; measuring, by a single photon avalanche diodes array of the sensing device, a time-of-flight value with a resolution of m in each of the n cycles to generate n raw data frames based on a reflected light of the light pulse; performing, by a pre-processing circuit of the sensing device, a pre-processing operation to n raw data frames to generate k pre-processed data frames, wherein m, n and k are natural numbers, and k is smaller than n; and generating, by post-processor of the sensing device, a histogram according to the k pre-processed data frames and analyzing the histogram to output a depth result.

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Patent Owner(s)

Patent OwnerAddress
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD8 LI-HSIN RD 6 HSINCHU SCIENCE PARK HSINCHU 300-78

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chao, Calvin Yi-Ping Hsinchu County, TW 41 349
Lee, Chih-Lin Miaoli County, TW 21 28
Wu, Meng-Hsiu Hsinchu, TW 32 169
Yeh, Shang-Fu Hsinchu, TW 37 109
Yin, Chin Tainan, TW 16 24

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