SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND RANGING MODULE

WIPO Patent Application WO/2020/203331

A1

The present technology relates to a signal processing device, a signal processing method, and a ranging module enabling an improvement in ranging accuracy. The signal processing device is provided with an estimating unit which employs first to fourth detected signals obtained by detecting reflected light resulting from radiated light being reflected from an object, in first to fourth phases relative to the radiated light, to estimate an inter-tap sensitivity difference between a first tap and a second tap in a pixel which has the first tap for detecting charges photoelectrically converted by a photoelectric conversion unit, and the second tap for detecting charges photoelectrically converted by the photoelectric conversion unit. The present technology can be applied to ranging modules and the like which perform ranging using an indirect time of flight (ToF) method.

KAIZU SHUN (JP)
MIHARA HAJIME (JP)
KAMIYA TAKURO (JP)
AOTAKE SHUNTARO (JP)

PCT/JP2020/012199

October 08, 2020

March 19, 2020

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SONY CORP (JP)
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)

G01C3/06; G01S17/32; G01S17/894; G01S7/4915; G01S13/93

WO2019054099A1

2019-03-21

US8786678B2	2014-07-22
JP2017150893A	2017-08-31
US20120173184A1	2012-07-05

SCHMIDT,M. ET AL.: "High Frame Rate for 3D Time-of-Flight Cameras by Dynamic Sensor Calibration", 2011 IEEE INTERNATIONAL CONFERENCE ON COMPUTATIONAL PHOTOGRAPHY, 8 April 2011 (2011-04-08), pages 1 - 8, XP031943266, DOI: 10.1109/ICCPHOT.2011.5753121

NISHIKAWA Takashi et al. (JP)

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