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:
Jan. 15, 2013
Filed:
May. 18, 2012
Amin Vahdat, Los Altos, CA (US);
Leon Poutievski, Santa Clara, CA (US);
Shashidhar Gandham, Fremont, CA (US);
Amin Vahdat, Los Altos, CA (US);
Leon Poutievski, Santa Clara, CA (US);
Shashidhar Gandham, Fremont, CA (US);
Google Inc., Mountain Valley, CA (US);
Abstract
A system and method of detecting polarity inversion in an optical switching circuit is disclosed. The method includes performing a first round of a port verification process on at least two optical ports, transmitting a payload from at least one optical port in the at least two optical ports, determining if the payload was received at a second optical port in the at least two optical ports, assigning a pair of ports to a first group in the case that the predetermined payload was communicated between the pair of ports, and assigning a pair of ports to a second group in the case that the predetermined payload was not communicated between the pair of ports. The method also includes determining that either the first group of ports or the second group of ports has inverted polarity.