Multi-integration Time Photo-receptor

Abstract

Temporal computation in an image sensor by charge-domain processing is a very interesting concept. We have realized this concept as a multi-integration time photoreceptor. The sensor can select one of the multiple integration times according to the incident light intensity. It then has a dynamic range 128 times as large that of a single-integration time. The sensor has two outputs i. e., a photo-intensity output and a integration-time output. The two outputs have a wide-range photo-conversion characteristics.