US 11,985,439 B2
Cone-rod dual-modality neuromorphic vision sensor
Luping Shi, Beijing (CN); Zheyu Yang, Beijing (CN); Rong Zhao, Beijing (CN); Jing Pei, Beijing (CN); and Haizheng Xu, Beijing (CN)
Assigned to TSINGHUA UNIVERSITY, Beijing (CN)
Appl. No. 17/788,889
Filed by TSINGHUA UNIVERSITY, Beijing (CN)
PCT Filed Jan. 21, 2020, PCT No. PCT/CN2020/073505
§ 371(c)(1), (2) Date Jun. 24, 2022,
PCT Pub. No. WO2021/128531, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 201911350683.2 (CN), filed on Dec. 24, 2019.
Prior Publication US 2023/0050794 A1, Feb. 16, 2023
Int. Cl. H04N 25/702 (2023.01); H04N 25/53 (2023.01); H04N 25/75 (2023.01); H04N 25/13 (2023.01)
CPC H04N 25/702 (2023.01) [H04N 25/53 (2023.01); H04N 25/75 (2023.01); H04N 25/134 (2023.01)] 10 Claims
OG exemplary drawing
 
1. A cone-rod dual-modality neuromorphic vision sensor, comprising a first preset quantity of voltage-mode active pixel sensor (APS) circuits and a second preset quantity of current-mode APS circuits, wherein
the voltage-mode APS circuit comprises a first-type photosensitive device, the first-type photosensitive device is configured to obtain a target light signal, extract a light signal of a specified frequency band from the target light signal, and convert the light signal of the specified frequency band into a first-type current signal, and the voltage-mode APS circuit is configured to output, based on the first-type current signal, a target voltage signal representing light intensity information in the target light signal; and
the current-mode APS circuit comprises a second-type photosensitive device, the second-type photosensitive device is configured to obtain the target light signal, and convert the target light signal into a second-type current signal, and the current-mode APS circuit is configured to output, based on the second-type current signal, a specified digital signal representing light intensity gradient information in the target light signal.