US 12,155,552 B2
Hardware architecture for universal testing system: cable modem test
Samant Kumar, San Jose, CA (US); Shivashankar Diddimani, Karnataka (IN); Hemanth Nekkileru, San Jose, CA (US); James Christopher Collip, Sunnyvale, CA (US); Naresh Chandra Nigam, San Jose, CA (US); and Mrinal Mathur, San Jose, CA (US)
Assigned to Contec, LLC, Schenectady, NY (US)
Filed by Contec, LLC, Schenectady, NY (US)
Filed on Feb. 23, 2021, as Appl. No. 17/182,531.
Application 17/182,531 is a continuation of application No. 16/415,604, filed on May 17, 2019, granted, now 10,965,578.
Application 16/415,604 is a continuation of application No. 14/929,180, filed on Oct. 30, 2015, abandoned.
Prior Publication US 2021/0176159 A1, Jun. 10, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 43/50 (2022.01); H04L 12/28 (2006.01)
CPC H04L 43/50 (2013.01) [H04L 12/2801 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A testing system for testing Voice over Internet Protocol (VoIP) connections and functions on a cable modem device, comprising:
a plurality of test servers, each test server of the plurality of test servers including:
an Ethernet port for providing digital signals to a radio frequency (RF) port on a cable modem device under test via an Ethernet-to-coax adapter, and
a Foreign Exchange Office (FXO) card for receiving analog signals from a phone port on the cable modem device under test; and
wherein each test server of the plurality of test servers is configured to:
send a digital signal representing a test phone call from the Ethernet port to the RF port on the cable modem device under test via the Ethernet-to-coax adapter, and
receive at the FXO card an analog signal representing the test phone call from the phone port on the cable modem device under test, wherein the analog signal is generated by the cable modem device under test in response to the digital signal.