IP Library Granted Patent US 10,219,053
Granted Patent B2
US 10,219,053 · App. 15/472,853 · Granted Feb 26, 2019

Fiber-to-coax conversion unit and method of using same

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Quick Facts
Patent No.
US 10,219,053
App. No.
15/472,853
Granted
Feb 26, 2019
Kind
B2
Abstract

A fiber-to-coax optical network unit for converting one or more Gigabit or Ethernet Passive Optical Network (GPON or EPON) fibers to one or more coaxial cable lines to connect a subscriber's premises to a Community Access Television (CATV) system.

Claims (20)

1. An apparatus, comprising:

a housing,

an optical network unit positioned in the housing, the optical network unit configured to convert a fiber optical signal into an electrical signal suitable for transmission via an Ethernet cable, and

an adaptor positioned in the housing and connected to the optical network unit, the adaptor configured to convert the the electrical signal into an Ethernet-based RF signal, the adaptor including a port configured to receive a coaxial cable connector.

2. The apparatus of claim 1 , wherein the optical network unit includes a plurality of optical network units operable to utilize at least one of GPON, EPON, 10G-PON, and 10G-EPON.

3. The apparatus of claim 1 , wherein the adaptor includes a plurality of adaptors.

4. The apparatus of claim 3 , further comprising a switch configured to selectively connect each adaptor to the optical network unit.

5. The apparatus of claim 1 , further comprising a splitter positioned in the housing and connected to the optical network unit, the splitter being configured to convert a single fiber optical signal into multiple fiber optical signals, wherein the optical network unit is operable to convert each of the multiple optical signals into the second signal type.

6. The apparatus of claim 5 , wherein the adaptor includes a plurality of adaptors configured to separately receive one of the second signal types based on the multiple optical signals.

7. A system comprising:

a signal conversion unit positioned at a pedestal remote from a plurality of subscriber's premises, the signal conversion unit comprising an optical network unit positioned in a housing, the optical network unit configured to convert a fiber optical signal into an electrical signal suitable for transmission via an Ethernet cable, and an adaptor positioned in the housing and connected to the optical network unit, the adaptor being configured to convert the electrical signal into an Ethernet-based RF signal, the adaptor including at least one port coupled to a coaxial cable, and

an Ethernet over Coax (EoC) converter device positioned in each subscriber's premises that is coupled to at least one coaxial cable coupled to the signal conversion unit.

8. The system of claim 7 , wherein the optical network unit includes a plurality of optical network units operable to utilize at least one of GPON, EPON, 10G-PON, and 10G-EPON.

9. The system of claim 7 , wherein the adaptor includes a plurality of adaptors, each adaptor being coupled to a different EoC converter device.

10. The system of claim 9 , further comprising a switch configured to selectively connect each adaptor to the optical network unit.

11. The system of claim 7 , further comprising a splitter positioned in the housing and connected to the optical network unit, the splitter being configured to convert a single fiber optical signal into multiple fiber optical signals, wherein the optical network unit is operable to convert each of the multiple optical signals into the second signal type.

12. The apparatus of claim 11 , wherein the adaptor includes a plurality of adaptors configured to separately receive one of the second signal types based on the multiple optical signals.

13. A method comprising:

positioning a signal conversion unit at a pedestal remote from a plurality of subscriber's premises, the signal conversion unit comprising an optical network unit positioned in a housing, the optical network unit configured to convert a fiber optical signal into an electrical signal suitable for transmission via an Ethernet cable, and an adaptor positioned in the housing, the adaptor configured to convert the electrical signal from the optical network unit into an Ethernet-based RF signal, the adaptor including at least one port coupled to a coaxial cable, and

coupling an Ethernet over Coax (EoC) converter device positioned in each subscriber's premises to at least one coaxial cable that is coupled to the signal conversion unit.

Assignments (7)
RELEASE OF SECURITY INTEREST AT REEL/FRAME 73189/0873 Recorded May 28, 2026
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: INERTIAL LABS, INC.; VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC
Reel/Frame 075642/0381 →
SECURITY INTEREST Recorded Nov 14, 2025
From: VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC; INERTIAL LABS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 073571/0137 →
SECURITY AGREEMENT Recorded Oct 21, 2025
From: INERTIAL LABS, INC.; VIAVI SOLUTIONS INC.; VIAVI SOLUTIONS LICENSING LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 073189/0873 →
TERMINATIONS OF SECURITY INTEREST AT REEL 052729, FRAME 0321 Recorded Jan 5, 2022
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: VIAVI SOLUTIONS INC.; RPC PHOTONICS, INC.
Reel/Frame 058666/0639 →
SECURITY INTEREST Recorded May 21, 2020
From: VIAVI SOLUTIONS INC.; 3Z TELECOM, INC.; ACTERNA LLC; ACTERNA WG INTERNATIONAL HOLDINGS LLC; VIAVI SOLUTIONS LLC; JDSU ACTERNA HOLDINGS LLC; OPTICAL COATING LABORATORY, LLC; RPC PHOTONICS, INC.; TTC INTERNATIONAL HOLDINGS, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 052729/0321 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2019
From: BUSH, TERRY W.; LUO, ALEX
To: TRILITHIC, INC.
Reel/Frame 047962/0259 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2018
From: TRILITHIC, INC.
To: VIAVI SOLUTIONS, INC.
Reel/Frame 044756/0836 →