High Fill-Factor Image Sensor Architecture

摘要

An image sensor architecture is implemented within an image sensor system. Image sensor pixels include pixel regions, and each pixel region includes a photosensor, a reset circuit, and a readout circuit. The readout circuit receives enable signals from an enable signal line, and outputs a pixel signal representative of light captured by the photosensor on a combination input/output line. The reset circuit resets the photosensor in response to receiving a first reset signal on a reset line and a second reset signal on the combination input/output line.

主权项

1. An integrated-circuit image sensor comprising:
a pixel region, the pixel region configured to detect light and comprising a readout circuit to produce a pixel signal in response to detected light and a reset circuit for resetting the pixel signal; a first combination input/output line coupled to the readout circuit; a second combination input/output line coupled to the reset circuit; a reset line coupled to the reset circuit, the reset circuit configured to reset the pixel signal in response to concurrently receiving a first reset signal on the reset line and a second reset signal on the second combination input/output line; and an enable line coupled to the readout circuit, the readout circuit configured to output the pixel signal on the first combination input/output line in response to receiving an enable signal on the enable line.