US 11,811,450 B2
High speed bidirectional optical time-domain reflectometer (OTDR)-based testing of device under test
Charlène Roux, Chamboeuf (FR); and Julien Barrier, Saint Jean Bonnefonds (FR)
Assigned to VIAVI SOLUTIONS INC., Chandler, AZ (US)
Filed by VIAVI SOLUTIONS INC., Chandler, AZ (US)
Filed on Jul. 20, 2022, as Appl. No. 17/869,449.
Application 17/869,449 is a continuation of application No. 17/157,636, filed on Jan. 25, 2021, granted, now 11,431,408.
Claims priority of application No. 20306322 (EP), filed on Nov. 4, 2020.
Prior Publication US 2022/0360327 A1, Nov. 10, 2022
Int. Cl. H04B 10/071 (2013.01); H04B 10/25 (2013.01); H04B 10/50 (2013.01); H04B 10/66 (2013.01); H04B 10/40 (2013.01)
CPC H04B 10/071 (2013.01) [H04B 10/25 (2013.01); H04B 10/50 (2013.01); H04B 10/66 (2013.01); H04B 10/40 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an optical time-domain reflectometer (OTDR);
a data transmitter, executed by at least one hardware processor, to
transmit data from a first end of a device under test (DUT) towards the OTDR that is operatively connected to a second opposite end of the DUT;
a data receiver, executed by the at least one hardware processor, to
receive further data that is transmitted by the OTDR from the second opposite end of the DUT towards the first end of the DUT, wherein the data receiver is separate from the OTDR; and
a receiver level controller, executed by the at least one hardware processor, to
adjust, based on an attribute of the further data, a direction of receiving of the further data towards a first receiver of the data receiver or towards a second receiver of the data receiver.