Patent ID: 9244541
Filing Date: 2016-01-26
CPC Classification: G06F,H01L,H04N

Claim Text:
1. An image sensing apparatus, comprising: at least one sensing pixel, comprising: a charge storing device; a light sensing device, for generating a first amount of photoelectrons according to a environmental light received in a first mode, and for generating a second amount of photoelectrons according to the environmental light and a light source light received in a second mode, wherein the second amount is larger than the first amount; and a switch device, for determining a charge amount that the photoelectrons can be transmitted from the light sensing device to the charge storing device according to a control voltage and the switch device controlled by the control voltage to be partially conductive so a third charge amount of photoelectrons do not flow into the charge storing device; and a control circuit, for generating the control voltage, thereby the charge amount that the photoelectrons can be transmitted from the light sensing device to the charge storing device in the first mode is a first charge amount and the charge amount that the photoelectrons can be transmitted from the light sensing device to the charge storing device in the second mode is a second charge amount, wherein the first charge amount equals to the first amount minus the third charge amount, and the second charge amount equals to the second amount minus the third charge amount; wherein the first charge amount and the second charge amount are smaller than a maximum charge storing amount for the charge storing device.