Configurable frequency band elimination for powerline network

• US 7,917,098 B2
• Filed: 10/13/2009
• Issued: 03/29/2011
• Est. Priority Date: 01/21/2005
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.), Sony Electronics Inc. (Sony Group Corp.)
• Inventors: Iwamura, Ryuichi
• Primary Examiner(s): NGUYEN, SIMON
• Application Number:
  US12/587,784
• Publication Number:
  US 20100034304A1
• Time in Patent Office: 532 Days
• Field of Search: 455/66.1, 455/91, 455103-140, 455/402, 455557-558, 455/566, 340/309.04, 340/310.11
• US Class Current: 455/91
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/5491 using filtering and bypassing
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals

Abstract

A communication device for use in adapting an appliance to a computer network consistent with certain embodiments has a data transmitter that receives data to be transmitted and generates output signals carrying the data at a plurality of carrier frequencies. A user configurable notch filter, receives the output signals from the data transmitter, for reducing the amplitude of a user selected range of frequencies, and producing a filtered output. A network communication medium interface receives the filtered output and transmitting the filtered output over a network communication medium. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Claims

1. A communication device for use in adapting an appliance to a computer network, comprising:

a data transmitter that receives data to be transmitted and generates output signals carrying the data at a plurality of carrier frequencies;

a user configurable notch filter, receiving the output signals from the data transmitter, for reducing the amplitude of a user selected range of carrier frequencies, and producing a filtered output; and

a network communication medium interface receiving the filtered output and transmitting the filtered output over a network communication medium.

2. The communication device in accordance with claim 1, wherein the data transmitter comprises an orthogonal frequency division multiplexing transmitter.

3. The communication device in accordance with claim 1, wherein the communication medium comprises a power line and the data transmitter comprises a power line communications (PLC) transmitter.

4. The communication device in accordance with claim 1, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for deactivation of the attenuation of the selected frequency band.

5. The communication device in accordance with claim 1, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for activation of the attenuation of the selected frequency band.

6. The communication device in accordance with claim 5, wherein activation of the user configurable notch filter is limited to at least one of the following:

a specified duration of time;

a specified number of sub-carriers and a specified percentage of available bandwidth.

7. The communication device in accordance with claim 1, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select at least one day of the week for activation and deactivation of the attenuation of the selected frequency band for at least a portion of the selected day.

8. The communication device in accordance with claim 1, further comprising means for generating a notch filter configuration request message specifying notch filter configuration parameters and transmitting the notch configuration request using the data transmitter.

9. The communication device in accordance with claim 1, further comprising a receiver that receives a notch configuration request message specifying notch filter parameters, and means for configuring the user configurable notch filter in accordance with the specified notch filter configuration parameters received in the notch filter configuration request message.

10. A power line communication (PLC) device for use in adapting an appliance to a PLC computer network, comprising:

a PLC data transmitter that receives data to be transmitted and generates output signals carrying the data at a plurality of carrier frequencies;

a user configurable notch filter, receiving the output signals from the data transmitter, for reducing the amplitude of a user selected range of frequencies, and producing a filtered output; and

a PLC interface receiving the filtered output and transmitting the filtered output over the power line.

11. The power line communication (PLC) device in accordance with claim 10, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for deactivation of the attenuation of the selected frequency band.

12. The power line communication (PLC) device in accordance with claim 10, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for activation of the attenuation of the selected frequency band.

13. The power line communication (PLC) device in accordance with claim 12, wherein activation of the user configurable notch filter is limited to at least one of the following:

a specified duration of time;

a specified number of sub-carriers and a specified percentage of available bandwidth.

14. The power line communication (PLC) device in accordance with claim 10, wherein the user configurable notch filter is configured via a user interface, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select at least one day of the week for activation and deactivation of the attenuation of the selected frequency band for at least a portion of the selected day.

15. The power line communication (PLC) device in accordance with claim 10, further comprising means for generating a notch filter configuration request message specifying notch filter configuration parameters and transmitting the notch configuration request using the data transmitter.

16. The power line communication (PLC) device in accordance with claim 10, further comprising a receiver that receives a notch configuration request message specifying notch filter parameters, and means for configuring the user configurable notch filter in accordance with the specified notch filter configuration parameters received in the notch filter configuration request message.

17. A method, comprising:

receiving an input from a user via a user interface for configuring a user configurable notch filter;

generating a first notch filter configuration request message specifying notch filter configuration parameters established using the user input; and

transmitting the first notch configuration request message over a power line to a power line communication (PLC) device in order to configure a transmitter notch filter at the power line communication device such that the notch filter attenuates output carrier frequencies transmitted by the PLC device.

18. The method in accordance with claim 17, further comprising receiving a second notch configuration request message transmitted over the power line specifying notch filter parameters, configuring a configurable notch filter in accordance with the specified notch filter configuration parameters received in the notch filter configuration request message.

19. The method in accordance with claim 17, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for deactivation of the attenuation of the selected frequency band.

20. The method in accordance with claim 17, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select a time for activation of the attenuation of the selected frequency band.

21. The method in accordance with claim 17, wherein the user interface is adapted to permit the user to select a frequency band to be attenuated by the user configurable notch filter, and wherein the user interface is further adapted to permit the user to select at least one day of the week for activation and deactivation of the attenuation of the selected frequency band for at least a portion of the selected day.

22. The method in accordance with claim 17, wherein activation of the user configurable notch filter is limited to at least one of the following:

a specified duration of time;

a specified number of sub-carriers and a specified percentage of available bandwidth.