Patent ID: 8847169
Filing Date: 2014-09-30
Classification: G01T

Abstract:
1. A CMOS (complementary metal-oxide-semiconductor) CT (computed tomography) detector for implementing synchronous partial quantization, comprising: a pixel array including a plurality of pixels arranged into at least one column; at least one digital column bus corresponding to the at least one column; at least one analog column bus corresponding to the at least one column; at least one column processing circuit corresponding to the at least one column for processing digital and analog outputs received from the at least one digital column bus and the at least one analog column bus; a shift register for multiplexing outputs of at least two column processing circuits; a control signal generation circuit for generating controls signals for at least one pixel of the plurality of pixels, the shift register, and the at least one column processing circuit; and a reference generation circuit for generating at least one voltage reference for at least one of: the at least one column processing circuit and the plurality of pixels; wherein the at least one pixel of the plurality of pixels includes: