Bi-directional premises wiring system and method

• US 6,418,149 B1
• Filed: 12/07/1999
• Issued: 07/09/2002
• Est. Priority Date: 12/07/1999
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Next Level Communications, L.P.
• Inventors: Swisher, James, Sheppard, Steven
• Primary Examiner(s): Nguyen, Chau
• Assistant Examiner(s): Hyun, Soon-Dong
• Application Number:
  US09/456,921
• Time in Patent Office: 945 Days
• Field of Search: 370/465, 370/468, 370/473, 370/480, 370/482, 370/485, 370/486, 370/487, 370/488, 370/493, 370/494, 370/495, 370/497, 370/501, 725/105, 725/111, 725/114, 725/120, 725/121, 725/87, 725/144, 725/147, 725/148, 725/149, 725/74, 725/78, 725/118, 725/128
• US Class Current: 370/487
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 7/108 the cable being constituted by a pair of wires
• CPC Class Codes: H04N 7/173 with two-way working, e.g. subscriber sending a programme selection signal

Abstract

The present invention provides a system and method for using existing wiring or cabling in a residence or other customer premises both (a) to transmit network telecommunications to a gateway or similar device for processing, and (b) to distribute processed signals from the device to video, telephony and data receivers. The invention enables and facilitates the receipt by telephone company subscribers of high-speed digital telecommunications over twisted-wire pair cabling historically installed and used for voice telephone service. In an embodiment, the system of the present invention comprises a bidirectional transmission facility, a first diplexer, and a second diplexer; the first diplexer receives network signals and transmits them or passes them on, using the bidirectioal transmission facility, to the second diplexer; and the second diplexer receives distribution signals and transmits them or passes them on, using the bidirectional transmission medium, to the first diplexer.

Claims

1. A system capable of simultaneous bidirectional transmission of network and distribution signals comprising:

(a) a bidirectional transmission facility;

(b) a first diplexer; and

(c) a second diplexer;

(d) wherein

(i) the first diplexer receives network signals from a first-diplexer input system, comprising

(A) a first transmission facility, comprising twisted-wire pair cable, connected to a source of network signals,

(B) a second transmission facility, comprising coaxial cable, connected to the first diplexer, and

(C) means, comprising an impedance converter, connected to the first transmission facility and the second transmission facility, for converting signals using the first transmission facility for transmission using the second transmission facility, and transmits the network signals, using the bidirectional transmission facility, to the second diplexer; and

(ii) the second diplexer receives distribution signals and transmits the distribution signals, using the bidirectional transmission facility, to the first diplexer.

25. The system of claim 1 or 2, wherein the network signals comprise xDSL signals.

26. The system of claim 1 or 2, wherein the distribution signals comprise TV/rf signals.

27. The bidirectional transmission system of claim 1 or 2, wherein the network signals comprise xDSL signals, the xDSL signals comprise a first plurality of programs, the distribution signals comprise TV/rf signals, and the TV/rf signals comprise a second plurality of programs.

2. A system capable of simultaneous bidirectional transmission of network and distribution signals comprising:

(a) a bidirectional transmission facility;

(b) a first diplexer; and

(c) a second diplexer;

(d) wherein

(i) the first diplexer receives network signals and transmits the network signals, using the bidirectional transmission facility, to the second diplexer;

(ii) the second diplexer transmits the network signals to a second-diplexer output system, comprising

(A) a first transmission facility, comprising coaxial cable, connected to the second diplexer,

(B) a second transmission facility, comprising twist-wire pair cable, connected to a gateway device, and

(C) means, comprising an impedance converter, connected to the first transmission facility and the second transmission facility, for converting signals using the first transmission facility for transmission using the second transmission facility; and

(iii) the second diplexer receives distribution signals and transmits the distribution signals, using the bidirectional transmission facility, to the first diplexer.

28. The bidirectional transmission system of claim 2, wherein the gateway receives the network signals transmitted by the second diplexer, converts the network signals to distribution signals, and transmits the distribution signals to the second diplexer.

3. A method for bidirectional transmission of network and distribution signals, comprising the steps of:

(a) interfacing the first end of a bidirectional transmission facility with a network connection and a distribution facility, for

receiving network signals transmitted using the network connection,

transmitting the network signals in a first direction using the bidirectional transmission facility,

receiving distribution signals transmitted in a second direction using the bidirectional transmission facility, and

transmitting the distribution signals using the distribution facility; and

(b) interfacing the second end of the bidirectional transmission facility with a gateway connection and a gateway return, for

receiving the network signals transmitted in the first direction using the bidirectional transmission facility,

transmitting the network signals using the gateway connection,

receiving the distribution signals transmitted using the gateway return, and

transmitting the distribution signals in the second direction using the bidirectional transmission facility.

4. The method of claim 3, further comprising the steps of

converting into distribution signals, at a gateway device, network signals transmitted to the gateway device using the gateway connection; and

transmitting the distribution signals using the gateway return toward the second end of the bidirectional transmission facility.

5. The method of claim 3, wherein the network connection comprises twisted wire pair cable.

6. The method of claim 3, wherein the network connection comprises coaxial cable.

7. The method of claim 3, wherein the first-end interfacing step comprises the step of connecting, to a first diplexer, the network connection, the first end of the bidirectional transmission facility and the distribution.

8. The method of claim 3, wherein the first-end interfacing step comprises the step of matching a transmission characteristic of the network connection with a corresponding transmission characteristic of the bidirectional transmission facility.

9. The method of claim 8, wherein the matching step comprises the step of using a first impedance converter in electrical series between the network connection and the first end of the bidirectional transmission facility.

10. The method of claim 9, wherein the first-end interfacing step comprises the step of connecting, to a first diplexer, the first impedance converter, the first end of the bidirectional transmission facility and the distribution facility.

11. The method of claim 3, wherein the distribution facility comprises coaxial cable.

12. The method of claim 3, wherein the distribution transmission facility comprises twisted-wire cable.

13. The method of claim 3, wherein the network signals comprise digital signals.

14. The method of claim 13, wherein the digital signals comprise xDSL signals.

15. The method of claim 3, wherein the distribution signals comprise digital signals.

16. The method of claim 3, wherein the distribution signals comprise analog signals.

17. The method of claim 15, wherein the analog signals comprise television signals.

18. The method of claim 3, wherein the gateway connection comprises twisted wire pair cable.

19. The method of claim 3, wherein the gateway connection comprises coaxial cable.

20. The method of claim 3, wherein the gateway return comprises coaxial cable.

21. The method of claim 3, wherein the gateway return comprises twisted wire pair cable.

22. The method of claim 3, wherein the second-end interfacing step comprises the step of matching a transmission characteristic of the gateway connection with a corresponding transmission characteristic of the bidirectional transmission facility.

23. The method of claim 22, wherein the matching step comprises the step of using a second impedance converter in electrical series between the gateway connection and the second end of bidirectional transmission facility.

24. The method of claim 23, wherein the second-end interfacing step comprises the step of connecting, to a second diplexer, the second impedance converter, the second end of the bidirectional transmission facility and the distribution facility.