System and method for providing audio signals over conventional power lines

• US 20040156513A1
• Filed: 02/07/2003
• Published: 08/12/2004
• Est. Priority Date: 02/07/2003
• Status: Abandoned Application

• Current Assignee: CE Labs LLC
• Original Assignee: Cable Electronics, Inc.
• Inventors: Muncy, Randall, Kessler, Robert F., Avalos, Sealtiel, Kaylor, Robert
• Application Number:
  US10/360,969
• Publication Number:
  US 20040156513A1
• Time in Patent Office: Days
• US Class Current: 381/77
• CPC Class Codes: H04B 2203/545 Audio/video application, e.g. interphone
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04H 20/84 combined with power distribution network

Abstract

The present disclosure provides a system and method for transporting audio signals over conventional power lines within a building.

Claims

1. An apparatus for transmitting and receiving audio signals over conventional power lines within a building, the apparatus comprising:

a right audio level control device for receiving a right speaker level and line level audio in;

a right audio modulator for receiving right audio signals from the right audio level control device;

a left audio level control device for receiving a left speaker level and line level audio in;

a left audio modulator for receiving left audio signals from the left audio level control device;

a filter and summing module for receiving signals from the right audio modulator and the left audio modulator;

an Radio Frequency (RF) amplifier for receiving signals from the filter and summing module;

a RF filter module for receiving signals from the RF amplifier;

an AC line interface for receiving signals from the RF filter module; and

a power supply connected to the AC line interface and that supplies DC power and connects to an AC circuit within the building.

2. The apparatus of claim 1 wherein the apparatus transmits audio signals from a compact disc in one room of the building to audio speakers in another room in the building.

3. The apparatus of claim 1 wherein the apparatus transmits audio signals from a FM receiver in one room of the building to speakers in another room in the building.

4. The apparatus of claim 1 wherein the audio signals transmitted are within a range of 3.5 MHz to 30 MHz.

5. The apparatus of claim 1 wherein the building is a residence.

6. The apparatus of claim 1 wherein the building is an business office.

7. An apparatus for transmitting and receiving audio signals over conventional power lines within a building, the apparatus comprising:

a right audio driver for transmitting right audio output;

a left audio driver for transmitting left audio output;

a right audio discriminator for transmitting signals to the right audio driver;

a left audio discriminator for transmitting signals to the left audio driver;

a left Radio Frequency (RF) amplifier and narrow band pass filter module for transmitting signals to the left audio discriminator;

a right RF amplifier and narrow band pass filter module for transmitting signals to the right audio discriminator;

a RF buffer and wide band filter pass module for splitting and transmitting signals to the right and the left RF amplifier modules;

an AC line interface for transmitting signals to the RF buffer and wide band filter pass module; and

a power supply connected to the AC line interface and that supplies DC power and connects to an AC circuit within the building.

8. The apparatus of claim 7 wherein the apparatus transmits audio signals from a compact disc in one room of the building to audio speakers in another room in the building.

9. The apparatus of claim 7 wherein the apparatus transmits audio signals from a FM receiver in one room of the building to speakers in another room in the building.

10. The apparatus of claim 7 wherein the audio signals transmitted are within a range of 3.5 MHz to 30 MHz.

11. The apparatus of claim 7 wherein the building is a residence.

12. The apparatus of claim 7 wherein the building is an business office.

13. An apparatus for transmitting and receiving audio signals over conventional power lines within a building, the apparatus comprising:

a power line audio transmitter, the transmitter including;

a right audio level control device for receiving a right speaker level and line level audio in;

a right audio modulator for receiving right audio signals from the right audio level control device;

a left audio level control device for receiving a left speaker level and line level audio in;

a left audio modulator for receiving left audio signals from the left audio level control device;

a filter and summing module for receiving signals from the right audio modulator and the left audio modulator;

an Radio Frequency (RF) amplifier for receiving signals from the filter and summing module;

a RF filter module for receiving signals from the RF amplifier; and

an AC line interface for receiving signals from the RF filter module;

a power supply connected to the AC line interface and that supplies DC power and connects to an AC circuit within the building;

a power line audio receiver, the receiver including;

a right audio driver for transmitting right audio output;

a left audio driver for transmitting left audio output;

a right audio discriminator for transmitting signals to the right audio driver;

a left audio discriminator for transmitting signals to the left audio driver;

a left Radio Frequency (RF) amplifier and narrow band pass filter module for transmitting signals to the left audio discriminator;

a right RF amplifier and narrow band pass filter module for transmitting signals to the right audio discriminator;

a RF buffer and wide band filter pass module for splitting and transmitting signals to the right and the left RF amplifier modules;

an AC line interface for transmitting signals to the RF buffer and wide band filter pass module; and

a power supply connected to the AC line interface and that supplies DC power and connects to an AC circuit within the building.

14. The apparatus of claim 13 wherein the apparatus transmits audio signals from a compact disc in one room of the building to audio speakers in another room in the building.

15. The apparatus of claim 13 wherein the apparatus transmits audio signals from a FM receiver in one room of the building to speakers in another room in the building.

16. The apparatus of claim 13 wherein the audio signals transmitted are within a range of 3.5 MHz to 30 MHz.

17. The apparatus of claim 13 wherein the building is a residence.

18. The apparatus of claim 13 wherein the building is an business office.