Patent ID: 6690888
Filing Date: 2004-02-10
Classification: H04B

Abstract:
A method for controlling an optical, path-to-sight link, the optical link including a source of light having a beam of light, a controllable beam steering device and an actuator to permit steering said light beam, the beam steering device being controllable by predetermined control signals, comprising the steps of:controlling the beam steering device so as to scan the beam of light in a first predetermined pattern; receiving first light detection data from a remote receiver including a light detector, the light detection data corresponding to the detection of said beam by said light detector; responsive to said first light detection data, determining a first beam direction for data communication from the link to the receiver; controlling the beam steering device to maintain a communications beam direction corresponding to said first beam direction; and modulating said beam of light with electronic signals; wherein said controllable beam steering device comprises a micro-mirror.