Device for broadcasting audio and video data

• US 8,434,122 B2
• Filed: 03/11/2008
• Issued: 04/30/2013
• Est. Priority Date: 03/13/2007
• Status: Active Grant

• Current Assignee: Sagem Communications SAS
• Original Assignee: Sagem Communications SAS
• Inventors: Morard, Jean-Pierre, Nogier, Jean-Marc
• Primary Examiner(s): Goodarzi, Nasser
• Assistant Examiner(s): GRAHAM, PAUL J
• Application Number:
  US12/530,891
• Publication Number:
  US 20100107207A1
• Time in Patent Office: 1,876 Days
• Field of Search: 725/114, 725/127, 375/240.01, 375/E07.02, 348/790, 348/E3.016
• US Class Current: 725/110
• CPC Class Codes: H04N 7/108 the cable being constituted by a pair of wires

Abstract

The invention relates to a device for delivering audio and video data. In such a device, the audio/video data travel together and are compressed along with the signaling data for the delivery of these audio/video data. Under current compression standards, these data are being increasingly compressed. This maximum compression proportionally complexifies the encoding and decoding of audio/video data. The appearance of network cables comprising six twisted pairs of wires makes it possible to produce networks having higher speed capacities. The object of the invention is not to increase speeds by using additional twisted pairs but to simplify the data traveling through the network.

Claims

1. A device for delivering audio and video data, comprising

a server comprising a processor for processing video, audio and signaling data, and encoding the video data only spatially using a codec;

a client device;

a network cable comprising six twisted pairs of wires for transmitting the audio and video data between the server and the client device;

wherein the video data travel between the server and the client device over only four twisted pairs of wires of the network cable;

wherein the audio data travel between the server and the client device over one of the two unused twisted pairs of wires of the network cable; and

wherein the signaling data which synchronize the audio data and video data travel between the server and the client device over the remaining unused twisted pair of wires of the network cable.

2. The device of claim 1, wherein the processor of the server separates the audio data, the video data and the signaling data prior to encoding of the video data.

3. The device of claim 1, wherein the network cable is a Category 7 network cable.

4. The device of claim 1, wherein the network cable transmits the video, audio and signaling data independently over a distinct twisted pair of wires.

5. The device of claim 1, wherein the processor encodes the video data in JPEG 2000.

6. The device of claim 1, wherein the client device comprises a liquid crystal display (LCD) video panel.

7. The device of claim 1, wherein the processor transmits the audio data in analog format to the client device over the network cable.

8. The device of claim 1, wherein the processor compresses the audio data and transmits compressed audio data to the client device over the network cable.

9. The device of claim 1, wherein the server further comprises a memory to store the video, audio and signaling data.