Patent ID: 9154713
Filing Date: 2015-10-06
Classification: H04N,Y10T

Abstract:
1. An imaging system comprising: an array of pixel cells, each of the pixel cells including: a plurality of analog-to-digital converters, each of the plurality of analog-to-digital converters having an input and an output, wherein each of the plurality of analog-to-digital converters is coupled via its input to the electrical storage device of at least one of the pixel cells and configured to convert a residual electrical charge in the respective electrical storage device into a digital binary value; and a corresponding plurality of digital counters included in a plurality of digital memory elements disposed physically separate from and coupled to the array of pixel cells, each of the digital counters being associated and in communication with a respective one of the pixel cells and configured to increment and store a digital counter value in response to receiving the analog quantization event signal from the respective one of the pixel cells.