The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2018
Filed:
May. 17, 2016
X Development Llc, Mountain View, CA (US);
Chiachi Wang, Union City, CA (US);
Sheng-Hui Yang, San Jose, CA (US);
Romain Clement, Campbell, CA (US);
Michael Sholl, Pacifica, CA (US);
X Development LLC, Mountain View, CA (US);
Abstract
A method includes receiving a first optical signal at a first communication terminal from a second communication terminal through a free space optical link. The received optical signal contains a modulated unique frequency tone. The method also includes mixing the modulated unique frequency tone with a reference signal to provide a mixed output signal and determining a signal strength of the modulated unique frequency tone based on the mixed output signal. The reference signal includes a same frequency as the modulated unique frequency tone. The method adjusts an optical head of the first communication terminal to establish acquisition and optical beam pointing with the second communication terminal based on the signal strength of the modulated unique frequency tone received from the second communication terminal.