Wireless local distribution system using standard power lines

• US 5,937,342 A
• Filed: 01/28/1997
• Issued: 08/10/1999
• Est. Priority Date: 01/28/1997
• Status: Expired due to Term

• Current Assignee: Pctel Maryland Incorporated (Amphenol Corporation)
• Original Assignee: Dynamic Telecommunications, Inc. (Amphenol Corporation)
• Inventors: Kline, Paul A.
• Primary Examiner(s): Bost, Dwayne D.
• Assistant Examiner(s): Vuong, Quochien B.
• Application Number:
  US08/789,285
• Time in Patent Office: 924 Days
• Field of Search: 455/402, 455/3.1, 455/3.3, 455/14, 455/561, 455/562, 455/457, 340/310.01, 340/870.01, 340/870.02, 340/310.08
• US Class Current: 455/402
• CPC Class Codes: H04B 2203/5408 using protocols
• CPC Class Codes: H04B 2203/5437 Wired telephone
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04M 11/002 with telemetering systems telemetering in general G08C

Abstract

A system and method to connect standard telephone subscriber equipment (telephone, facsimile, personal computer) to a fixed wireless terminal via power lines. The system comprises fixed wireless terminals connected to a power line interface device. Subscriber equipment is connected to the power line interface device thereby allowing telecommunication signals to be transmitted to the fixed wireless terminal for subsequent wireless transmission. The fixed wireless terminal exists at an individual subscriber'"'"'s home/business within a given step-down power transformer cluster. The step-down power transformer provides signal isolation so that the same or similar addresses can be used between clusters without confusion as to the identity of the individual subscriber. The FWT is also connected to the power meter at a subscriber location such that power utilization can be communicated to the power company in a wireless fashion.

Claims

1. A wireless local distribution system using standard power lines comprising:

(a) a step-down power transformer;

(b) external power lines connected to the step-down power transformer;

(c) a transformer cluster formed by the step-down power transformer and external power lines;

(d) subscriber facilities comprising internal power lines connected to the external power lines;

(e) at least one power line interface device connected to the internal power lines further comprising interface means;

(f) telecommunications equipment providing signals connected to the power line interface device interface means, wherein the telecommunications equipment is selected from the group consisting of telephones, faxes, and computers;

(g) fixed wireless terminal equipment connected to the external power lines adapted to provide wireless communication and further adapted to receive the signals from the telecommunications equipment and to transmit the

signals to a wireless local network; and

wherein the step-down power transformer provides signal isolation within the transformer cluster.

2. The wireless local distribution system using standard power lines of claim 1, wherein the power line interface device interface means is adapted to communicate using any communication protocol.

3. The wireless local distribution system using standard power lines of claim 2, wherein the power line interface device interface means is adapted to connect to plain old telephone service.

4. The wireless local distribution system using standard power lines of claim 2, wherein the power line interface device interface means is adapted to connect to facsimile equipment.

5. The wireless local distribution system using standard power lines of claim 2, wherein the power line interface device interface means is adapted to connect to modem.

6. The wireless local distribution system using standard power lines of claim 2, wherein the power line interface device interface means is adapted to connect to a computer data port.

7. The wireless local distribution system using standard power lines of claim 1, wherein the power line interface device is adapted to connect to the internal power lines.

8. The wireless local distribution system using standard power lines of claim 1, wherein the power line interface device is adapted to connect to the external power lines.

9. The wireless local distribution system using standard power lines of claim 1, further comprising a power meter connecting the external and internal power lines and wherein the fixed wireless terminal is adapted to receive power meter signals and information from the power meter and to transmit the power meter signals and information to the power company.

10. The wireless local distribution system using standard power lines of claim 1, wherein the fixed wireless terminal equipment is adapted to provide telecommunication signals for a single subscriber facility via the power lines.

11. The wireless local distribution system using standard power lines of claim 1, wherein the fixed wireless terminal equipment is adapted to provide telecommunication signals for a plurality of subscriber facilities via the external power lines.