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1. (WO2017058488) HIGH DYNAMIC RANGE SOLID STATE IMAGE SENSOR AND CAMERA SYSTEM

Pub. No.:    WO/2017/058488    International Application No.:    PCT/US2016/050729
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 09 01:59:59 CEST 2016
IPC: H04N 5/355
H04N 5/3745
H04N 5/369
Applicants: QUALCOMM INCORPORATED
Inventors: GOMA, Sergiu
HSEIH, Biay-Cheng
Title: HIGH DYNAMIC RANGE SOLID STATE IMAGE SENSOR AND CAMERA SYSTEM
Abstract:
A high dynamic range solid state image sensor and camera system are disclosed. In one aspect, the solid state image sensor includes a first wafer including an array of pixels, each of the pixels comprising a photosensor, and a second wafer including an array of readout circuits. Each of the readout circuits is configured to output a readout signal indicative of an amount of light received by a corresponding one of the pixels and each of the readout circuits includes a counter. Each of the counters is configured to increment in response to the corresponding photosensor receiving an amount of light that is greater than a photosensor threshold. Each of the readout circuits is configured to generate the readout signal based on a value stored in the corresponding counter and a remainder stored in the corresponding pixel.