Patent ID: 11960008
Assignee: CMOS SENSOR, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 6:
7. The sensing system as recited in claim 1, where the first linear sensor includes:
a linear array of pixels, each of the pixels including one photosensor and producing a final signal within a predefined frame, wherein the final signal captures a reflected light without background light interference;
a readout circuit including at least a first storage device and a second storage device; and
a clock circuit, coupled to the sensor and the readout circuit, causing the readout circuit to store a first charge and a second charge on the first storage device and the second storage, respectively, wherein the first charge or the second charge is proportional to an intensity of an incoming light impinged upon the photosensor, the first charge and the second charge are created successively within the predefined frame, and the final signal is a subtraction between the first charge and the second charge.