Apparatus and system for delivering audio/video content to a remote receiver

• US 7,739,712 B2
• Filed: 07/03/2006
• Issued: 06/15/2010
• Est. Priority Date: 08/29/2003
• Status: Active Grant

• 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: Boyden, David C., Iwamura, Ryuichi
• Primary Examiner(s): Kelley; Christopher
• Assistant Examiner(s): Mengesha; Mulugeta
• Application Number:
  US11/481,396
• Publication Number:
  US 20070022449A1
• Time in Patent Office: 1,443 Days
• Field of Search: 725/95, 725/138, 725/139, 725/141, 725/144, 725/145, 725/151, 725/153
• US Class Current: 725/81
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 2203/5441 Wireless systems or telephone
• CPC Class Codes: H04B 2203/5454 Adapter and plugs
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04W 12/033 of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

A system for communicating content streams (e.g., voice, video, data) between a content server connected to a network and a remote electronic device. In one implementation, the network is a power-line communication (PLC) network and the remote device is configured for ultra-wide band connectivity with an interface module. The interface module is a power-line communication/ultra-wide band (PLC/UWB) module preferably connected to a conventional power outlet on the network. The interface module converts the power-line signals from the server to ultra-wide band signals which are broadcast for reception by the wireless electronic device. Return communications with the server from the wireless electronic device are also preferably supported. The power-line communication and/or ultra-wide band signal can also be encrypted for improved security. The content server and interface module are preferably configured to communicate content streams only within the portions of the bandwidth allocated by a bus master, which may be a content server with programming for controlling bandwidth use on the physical power-line communications network. In another implementation, the content is sent to the remote device over a connection to the Internet.

Claims

1. An apparatus for forwarding audio/video data content to a remote wireless device, comprising:

a content server device configured for receiving data content from an external source of audio data content, video data content or both audio and video data content;

wherein said content server device is configured for transmitting said data content, as one or more data streams, over a physical power line communications (PLC) network;

wherein said content server device is configured for operating on a PLC network which can be bounded by a distribution transformer upon which multiple servers of multiple users are operating in different virtual networks;

wherein said content server device, and other servers on the same PLC network but within different virtual networks, are configured to determine which server is to be bus master of the PLC network for controlling allocation of PLC bandwidth within each virtual network on the PLC network; and

at least one PLC to wireless conversion module configured for receiving streaming data over the PLC network and outputting said data streams over a short-range wireless transmitter to at least one remote user device;

wherein said content server is configured to encrypt and decrypt data being communicated over the respective virtual networks to each PLC to wireless conversion module, thereby preventing content from being accessed by other virtual networks connected within the same PLC network.

2. An apparatus as recited in claim 1, wherein said external source of audio and video data content is selected from the group consisting of a media player, DVD, CD, PVR, DVR, STB, live feed, cable feed, satellite feed, broadcast feed, Internet connection, and high or low bandwidth telephone connection.

3. An apparatus as recited in claim 1, wherein said content server is configured to collect data content, to distribute data content, or to both collect and distribute data content.

4. An apparatus as recited in claim 1, wherein said content server device includes a communications interface configured for interfacing said content server device with a network.

5. An apparatus as recited in claim 1, wherein said content server device includes a computer processor and programming executable on said computer processor for carrying out the operations of,

dividing available bandwidth of the network into assignable units,

categorizing content streams that are to be communicated over the network into priority groups,

assigning units of bandwidth to said priority groups in response to the bandwidth requirements of said content streams and the transmission priority of said priority group, and

assigning specific units of bandwidth to specific content streams within each of said priority groups in response to an equitable sharing of bandwidth on said network.

6. An apparatus as recited in claim 1:

wherein said content server device includes a computer processor and programming executable on said computer processor for carrying out the operations of;

dividing available bandwidth of the network into assignable units,

categorizing content streams that are to be communicated over the network into priority groups,

assigning units of bandwidth to said priority groups in response to the bandwidth requirements of said content streams and the transmission priority of said priority group, and

assigning specific units of bandwidth to specific content streams within each of said priority groups in response to an equitable sharing of bandwidth on said network;

wherein bandwidth within a given priority group is assigned by said content server device to a plurality of said remote devices on an as-needed basis and said remote devices are permitted to utilize up to their equal share of bandwidth within said given priority group; and

wherein additional available bandwidth is equally divided between virtual networks with unfulfilled bandwidth requests.

7. A system for forwarding audio/video data content through a power-line communications (PLC) network to a remote wireless device, comprising:

a content server device configured for receiving data content from an external source of audio data content, video data content or both audio and video data content;

wherein said content server device is configured for transmitting said data content, as one or more data streams, over a physical power line communications (PLC) network;

wherein said content server device is configured for operating on a PLC network which can be bounded by a distribution transformer upon which multiple servers of multiple users are operating in different virtual networks;

wherein said content server device, and other servers on the same PLC network but within different virtual networks, are configured to determine which server is to be selected as bus master of the PLC network for controlling allocation of PLC bandwidth within each virtual network on the PLC network to assign one or more time slots to each said data stream being directed to a remote wireless device; and

at least one PLC to wireless conversion module configured for receiving streaming data over the PLC network, utilizing bandwidth according to the direction of the selected bus master, and outputting said streaming data over a short-range wireless transmitter to at least one remote user device

wherein said content server device is configured to encrypt and decrypt data being communicated over the respective virtual networks to each PLC to wireless conversion module, thereby preventing content from being accessed by other virtual networks connected within the same PLC network.

8. A system as recited in claim 7, wherein said external source of audio and video data content is selected from the group consisting of a media player, DVD, CD, PVR, DVR, STB, live feed, cable feed, satellite feed, broadcast feed, Internet connection, and high or low bandwidth telephone connection.

9. A system as recited in claim 7, wherein said content server is configured to collect data content, to distribute data content, or to both collect and distribute data content.

10. A system as recited in claim 7, wherein said content server device includes a communications interface configured for interfacing said content server device with a network.

11. A system as recited in claim 7, further comprising:

a plurality of remote user devices;

each said remote user device configured for receiving data content from a content server.

12. A system as recited in claim 7, further comprising:

a plurality of remote user devices;

each said remote user device configured for receiving data content from a content server; and

a remote communications module configured for transmitting said data content received from said content server to a remote user device.

13. A system as recited in claim 7, further comprising:

a plurality of remote user devices;

each said remote user device configured for receiving data content from a content server; and

a remote communications module configured for transmitting said data content received from said content server to a remote user device;

wherein a said communications module includes a network interface configured for interfacing said communications module with a wired network.

14. A system as recited in claim 7, further comprising:

a plurality of remote user devices;

each said remote user device configured for receiving data content from a content server; and

a remote communications module configured for transmitting said data content received from said content server to a remote user device;

wherein a said communications module includes a wireless transmitter configured to transmit said data content received from said content server device to a wireless receiver associated with the remote user device.

15. A system as recited in claim 7, further comprising:

a plurality of remote user devices;

each said remote user device configured for receiving data content from a content server; and

a remote communications module configured for transmitting said data content received from said content server to a remote user device;

wherein a said communications module includes a power line communications (PLC) receiver configured to receive said data content from said content server device.

16. A system as recited in claim 7, wherein said content server device includes a computer processor and programming executable on said computer processor for carrying out the operations of,

dividing available bandwidth of the network into assignable units, categorizing content streams that are to be communicated over the network into priority groups,

assigning units of bandwidth to said priority groups in response to the bandwidth requirements of said content streams and the transmission priority of said priority group, and

assigning specific units of bandwidth to specific content streams within each of said priority groups in response to an equitable sharing of bandwidth on said network.

17. A system as recited in claim 7:

wherein said content server device includes a computer processor and programming executable on said computer processor for carrying out the operations of,

dividing available bandwidth of the network into assignable units, categorizing content streams that are to be communicated over the network into priority groups,

assigning units of bandwidth to said priority groups in response to the bandwidth requirements of said content streams and the transmission priority of said priority group, and

assigning specific units of bandwidth to specific content streams within each of said priority groups in response to an equitable sharing of bandwidth on said network;

wherein bandwidth within a given priority group is assigned by said content server device to a plurality of said remote devices on an as-needed basis and said remote devices are permitted to utilize up to their equal share of bandwidth within said given priority group; and

wherein additional available bandwidth is equally divided between virtual networks with unfulfilled bandwidth requests.

18. An apparatus for forwarding audio/video data content through a power-line communications (PLC) network to a remote wireless device, comprising:

a content server device configured for receiving data content from an external source of audio data content, video data content or both audio and video data content;

wherein said content server device is configured for transmitting said data content, in the form of one or more data streams, over a physical power line communications (PLC) network;

wherein said content server device is configured for operating on a PLC network which can be bounded by a distribution transformer upon which multiple servers of multiple users are operating in different virtual networks;

wherein said content server device, and other servers connected to the same PLC network but within different virtual networks, are configured to select which server is to operate as bus master of the PLC network for controlling allocation of PLC bandwidth within each virtual network on the PLC network; and

at least one PLC to ultra-wide band (UWB) conversion module configured for receiving streaming data over the PLC network and outputting said data streams over ultra-wide band transmissions to at least one remote user device;

said UWB transmissions configured to minimize interference with existing devices in response to spreading signal power over a wide band of frequencies during transmission;

wherein said content server device is configured to encrypt and decrypt data being communicated over the respective virtual networks to each PLC to wireless conversion module, thereby preventing content from being accessed by other virtual networks connected within the same PLC network.

19. An apparatus as recited in claim 18, wherein said external source of audio and video data content is selected from the group consisting of a media player, DVD, CD, PVR, DVR, STB, live feed, cable feed, satellite feed, broadcast feed, Internet connection, and high or low bandwidth telephone connection.

20. An apparatus as recited in claim 18, wherein said content server is configured to collect data content, to distribute data content, or to both collect and distribute data content.