Title:
HYBRID PIXEL CIRCUIT TO CAPTURE FRAME BASED AND EVENT BASED IMAGES
Document Type and Number:
WIPO Patent Application WO/2021/159231
Kind Code:
A1
Abstract:
The present invention provides a pixel circuit. The pixel circuit includes: a current change detector for detecting change of photocurrent from an input port, one or more pixel units, each pixel unit comprising one or more photodiodes and corresponding transfer gate transistors, and a reset transistor, wherein a source of each transfer gate transistor is connected to a cathode of the corresponding photodiode, and a drain of each transfer gate transistor is connected to a source of the reset transistor, and one or more selector circuits for connecting the drain of the reset transistor to the input port of the current change detector or a fixed voltage in response to a control signal. The present invention achieves a good alignment matching of frame based images and the event based images.
Inventors:
TAKAO ISHII (JP)
YOSHIHARU KUDOH (JP)
MONOI MAKOTO (JP)
SHI BIN (JP)
YOSHIHARU KUDOH (JP)
MONOI MAKOTO (JP)
SHI BIN (JP)
Application Number:
PCT/CN2020/074613
Publication Date:
August 19, 2021
Filing Date:
February 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04N5/361
Domestic Patent References:
| WO2017098710A1 | 2017-06-15 | |||
| WO2015166238A1 | 2015-11-05 |
Foreign References:
| US10516838B2 | 2019-12-24 | |||
| US20190281242A1 | 2019-09-12 | |||
| US7053947B2 | 2006-05-30 | |||
| US6606121B1 | 2003-08-12 |
Download PDF:
Previous Patent: BRAIN-COMPUTER INTERFACE SYSTEM AND METHOD BASED ON SENSORY TRANSMISSION
Next Patent: CONTROL RESOURCE SET PRECODING INDICATION
Next Patent: CONTROL RESOURCE SET PRECODING INDICATION