Network infrastructure integrated system

• US 6,904,134 B2
• Filed: 06/15/2001
• Issued: 06/07/2005
• Est. Priority Date: 06/16/2000
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Baik, Won Kwang, Jeon, Paul
• Primary Examiner(s): Eng, George
• Application Number:
  US09/880,857
• Publication Number:
  US 20010053207A1
• Time in Patent Office: 1,453 Days
• Field of Search: 379/90.01, 379/93.07, 379/93.36, 37910201-10202, 379/106.04, 379392-39201, 379/394, 379/102.04, 34031001-31008, 340/825.58, 455/402
• US Class Current: 379/93.07
• CPC Class Codes: H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
• CPC Class Codes: H04B 2203/5437 Wired telephone
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/5483 using coupling circuits
• CPC Class Codes: H04B 2203/5491 using filtering and bypassing
• CPC Class Codes: H04B 3/542 the information being in digital form
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2836 Protocol conversion between an external network and a home network controlling appliance services of a home automation network from a device located outside the home and the home network H04L12/2818; protocol conversion H04L69/08; adaptation of digital video signals for transport over a specific home network H04N7/24
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 2012/2843 Mains power line
• CPC Class Codes: H04L 2012/2845 Telephone line
• CPC Class Codes: H04M 7/0069 comprising a residential gateway, e.g. those which provide an adapter for POTS or ISDN terminals

Abstract

A network infrastructure integrated system which is able to integrate a telephone line network and a power line network as a single network using a simple circuit includes a first network to which a plurality of Home Information Machines are connected; a second network to which a plurality of Home Information Machines are connected; and a network bridge connected between the first and second networks and enabling the Home Information Machines to share respective applications and data with each other, whereby the cost can be reduced, the interchangeability is increased, and the accessibility to the network can be increased by using both the power lines and the telephone lines.

Claims

1. A network infrastructure integrated system comprising:

a telephone line network to which a first plurality of home information machines are respectively each connected via a PNA modem;

a power line network to which a second plurality of home information machines are respectively each connected via a PNA modem having a couvler;

a gateway system connected with one of the telephone line network and the power line network for converting communication protocols of the telephone line network or power line network and an external network and transferring data signals between the telephone line network or power line network and the external network; and

a network bridge connected between the telephone line network and the power line network for enabling the first and second pluralities of home information machines to communicate data signals with each other between the telephone line network and the power line networks;

wherein the network bridge includes an input protection means for protecting internal circuitry thereof and removing unwanted electric components of the data signal flowing between the telephone line network and the power line network, and matching means connected to the input means for matching the data signal to an impedance value of the PNA modem between the telephone line network and the power line network.

2. The system according to claim 1, wherein the gateway system includes PNA modems.

3. The system according to claim 1, wherein the first plurality of home information machines connected to the telephone line network each a include a phone line networking alliance (PNA) modem, the second plurality of Home Information Machines connected to the power line network each include a PNA modem having a coupler for connecting to a power line, and the gateway system includes a PNA modem.

4. The system according to claim 1, wherein the telephone line network includes at least one phone line networking alliance (PNA) modem, the power line network includes at least one PNA modem having a coupler for connecting to a power line, and the gateway system also includes a PNA modem having a coupler for connecting to a power line.

5. The system according to claim 1, wherein the first plurality of home information machines connected to the telephone line each include a phone line networking alliance (PNA) modem, the second plurality of Home Information Machines connected to the power line network each include a PNA modem having a coupler for connecting to a power line, and the gateway system also includes a PNA modem having a coupler for connecting to a power line.

6. The system according to claim 1, wherein the network bridge further includes an output means connected to the matching means for coupling the data signals between the telephone line network and power line network and filtering the data signals.

7. The system according to claim 6, wherein the input means includes a plug against inputting/outputting the data signal, a protection means for protecting an overvoltage and a surge voltage, and a blocking means connected to the protection means and blocking DC or AC components.

8. The system according to claim 7, wherein the protection means includes a line filter for preventing admission of noise generated from the home information machines.

9. The system according to claim 6, wherein a load impedance resistance value in the matching means is 10 kΩ

.

10. The system according to claim 6, wherein the output means includes an isolation and coupling means for isolating the telephone line network and the power line network from each other, a filtering means for band-pass filtering the data signal, and a socket for connecting the telephone line network or the power line network.

11. The system according to claim 10, wherein the isolation and coupling means has a transformer in which the telephone line network side and on the power line network side are connected to a respective coil winding having a same number with each other.

12. The system according to claim 10, wherein the filtering means is a band-pass filter which passes only signals in a range of 4.25 MHz˜

9.75 MHz.

13. The system according to claim 1, wherein the telephone line network and the power line network are integrated without using a router.