Patent ID: 6915080
Filing Date: 2005-07-05
Classification: B81B,G02B,H04B

Abstract:
1. A method of aligning two optical wireless links, each optical wireless link having a light beam having a field of view, comprising: sweeping the first light beam of the first optical wireless link through a first pre-defined pattern; sweeping the second light beam of the second optical wireless link through a second pre-defined pattern; wherein the first light beam transmits position data for the first light beam and the second light beam transmits position data for the second light beam; detecting the second light beam at the first optical wireless device; transmitting on the first light beam the position data for the second light beam; detecting the first light beam at the second optical wireless device; and transmitting on the second light beam, the position data for the first light beam, wherein the position data for the first light beam is updated periodically at a first rate and wherein the position data is transmitted periodically at a faster rate.