Patent ID: 7133618

Claim:
A method of aligning optical wireless transceivers having distinct mirrors for transmitting and receiving, the method comprising the steps of: simultaneously scanning local and remote transmitting beam mirrors and local and remote incident beam receiving mirrors, wherein the transmitting mirrors are scanned at a first frequency for a first transmitting mirror axis and a second frequency for a second transmitting mirror axis, and further wherein the receiving mirrors are scanned at a third frequency for a first receiving mirror axis and a fourth frequency for a second receiving mirror axis, and further wherein the scanning amplitude is selected to substantially paint the field of view associated with a respective transmitted beam and substantially scan the field of view associated with a respective receiver; updating and transmitting position information while scanning, wherein the position information comprises local transmitting mirror first and second axis scanning data representing the position of the local transmitting mirror, and further comprises remote transmitting mirror first and second axis scanning data which contains the received scanning data; halting the receiving mirror second axis scanning upon detection of first valid received data, first axis scanning continues; halting the receiving mirror first axis scanning upon detection of second valid received data; receiving valid second axis remote position data; halting the transmitting mirror second axis scanning; positioning the transmitting second axis in response to the valid received second axis remote position data; receiving valid first axis remote position data; halting the transmitting mirror first axis scanning; positioning the transmitting first axis in response to the valid received first axis remote position data.