WIDE DYNAMIC RANGE PIXEL CIRCUIT

摘要

A pixel circuit includes: a photodetector, a signal adjustment circuit and a switch circuit. The photodetector is employed for generating an output signal in response to light that is incident thereon. The signal adjustment circuit is coupled to the photodetector, and employed for selectively adjusting the output signal to allow the output signal to have a plurality of different logarithmic functions in respect to an intensity of the light. The switch circuit is coupled to the signal adjustment circuit and the photodetector, and employed for coupling the photodetector to the signal adjustment circuit.

主权项

1. A pixel circuit, comprising:
a photodetector, for generating a output signal in response to light that is incident thereon; a signal adjustment circuit, coupled to the photodetector, for selectively adjusting the output signal to allow the output signal to have a plurality of different logarithmic functions in respect to an intensity of the light; and a switch circuit, coupled to the signal adjustment circuit and the photodetector, for coupling the photodetector to the signal adjustment circuit.