Patent ID: 7142348
Filing Date: 2006-11-28
Classification: G01S,G02B,H01L,H04B

Abstract:
1. A method of addressing an array of AFP MQW pixels having first and second sets of electrodes comprising: (a) scanning the first set of electrodes to detect any sensing current resulting from the photoactivation of a pixel while the second set of electrodes is scanned with a small negative voltage; (b) if a pixel is detected in step (a) as being photoactivated, sampling any data received by the photoactivated pixel in handshaking protocol to determine whether a party photoactivating the photoactivated pixel is friend or foe; (c) if the photoactivated pixel is turned on by a friend, applying a modulating voltage waveform to a corresponding electrode in the second set of electrodes corresponding photoactivated pixel; (d) if the photoactivated pixel is turned on by a foe, a voltage V, which is a zero reflection bias for the photoactivated pixel, is applied to a corresponding electrode in the second set of electrodes corresponding photoactivated pixel.