Method and system for wireless digital multimedia presentation

• US 20050136990A1
• Filed: 12/22/2003
• Published: 06/23/2005
• Est. Priority Date: 12/22/2003
• 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: Champion, Mark, Hardacker, Robert L.
• Granted Patent: US 7,562,379 B2
• Time in Patent Office: Days
• US Class Current: 455/572
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4367 Establishing a secure communication between the client and a peripheral device or smart card

Abstract

A system for sending multimedia data between a first High Definition Multimedia Interface (HDMI) component and a second HDMI component that is engaged with a displayer of multimedia data includes a first Digital Visual Interface (DVI) component receiving HDCP-encrypted multimedia data from the first HDMI component over a wire. A wireless transmitter sends data from the first DVI component to a wireless receiver, preferably at 60 GHz, and the receiver in turn sends the data to a second DVI component. Neither DVI component encrypts or decrypts data. The second DVI component sends the multimedia data to a second HDMI component for decryption and display on, e.g., an LCD or plasma display.

Claims

1. A system, comprising:

a source of multimedia data;

a first High Definition Multimedia Interface (HDMI) component receiving the multimedia data from the source;

a first Digital Visual Interface (DVI) component receiving, over at least one wire, the multimedia data from the first HDMI component, the multimedia data received by the first DVI component being encrypted using High-Bandwidth Digital Content Protection (HDCP), the first DVI component not decrypting or encrypting the multimedia data at any point;

a wireless transmitter receiving encrypted multimedia data from the first DVI component and wirelessly transmitting the encrypted multimedia data to a wireless receiver, the encrypted multimedia data from the first DVI component including audio data multiplexed within a video data stream;

a second DVI component receiving encrypted multimedia data from the wireless receiver;

a second HDMI component receiving encrypted multimedia data from the second DVI component; and

a displayer of multimedia data receiving multimedia data from the second HDMI component via at least one wire for display thereof.

2. The system of claim 1, further comprising:

means for multiplexing control data related to the displayer into the multimedia data;

means for processing the multimedia data to render it suitable for wireless transmission;

means for processing multimedia data received wirelessly; and

means for demultiplexing the control data from the multimedia data.

3. The system of claim 1, wherein the displayer of multimedia data is mounted in a room in which the wireless transmitter is disposed, the wireless transmitter wirelessly transmitting the multimedia data at approximately sixty GigaHertz (60 GHz).

4. The system of claim 1, wherein the multimedia data is high definition (HD) multimedia data.

5. The system of claim 1, wherein the control data is multiplexed in the blanking interval of the multimedia data.

6. The system of claim 1, wherein the audio data is multiplexed in a blanking interval of the video data stream.

7. The system of claim 1, wherein the audio data is multiplexed with the video data stream using the falling edge of a clock signal.

8. The system of claim 1, wherein the displayer of multimedia data is a plasma display.

9. The system of claim 1, wherein the displayer of multimedia data is a liquid crystal display.

10. A system for sending multimedia data including audio data and video data between a first High Definition Multimedia Interface (HDMI) component and a second HDMI component engaged with a displayer of multimedia data, the system comprising:

a first Digital Visual Interface (DVI) component receiving multimedia data from the first HDMI component, the multimedia data received by the first DVI component being encrypted;

a wireless transmitter receiving encrypted multimedia data from the first DVI component and wirelessly transmitting the encrypted multimedia data to a wireless receiver; and

a second DVI component receiving encrypted multimedia data from the wireless receiver, the second DVI component sending the multimedia data to the second HDMI component.

11. The system of claim 10, wherein the DVI components communicate over wired links with their respective HDMI components.

12. The system of claim 10, wherein the DVI components do not decrypt or encrypt the multimedia data.

13. The system of claim 10, wherein the multimedia data is encrypted using High-Bandwidth Digital Content Protection (HDCP).

14. The system of claim 10, wherein the displayer of multimedia data is mounted in a room in which the wireless transmitter disposed, the wireless transmitter wirelessly transmitting the multimedia data at approximately sixty GigaHertz (60 GHz).

15. The system of claim 10, wherein the multimedia data is high definition (HD) multimedia data.

16. The system of claim 10, wherein the audio data is at least one of:

multiplexed in a blanking interval of a video data stream, and multiplexed with a video data stream using the falling edge of a clock signal.

17. The system of claim 10, wherein the displayer of multimedia data is selected from the group consisting of:

plasma displays, liquid crystal displays, and projectors.

18. A system for sending multimedia data including audio data and video data between a source end component processing data in accordance with a first digital communication protocol and a receiving end component processing data in accordance with the first digital communication protocol and engaged with a displayer of multimedia data, the system comprising:

a first component processing data in accordance with a second communication protocol and receiving multimedia data from the source end component;

a wireless transmitter receiving multimedia data from the first component and wirelessly transmitting the multimedia data to a wireless receiver; and

a second component processing data in accordance with the second communication protocol and receiving multimedia data from the wireless receiver, the second component sending the multimedia data to the receiving end component.

19. The system of claim 18, wherein the first communication protocol is intended for conveying audio and video data and the second communication protocol is intended to convey only video data, with audio data being multiplexable within the video data.

20. The system of claim 18, wherein the first communication protocol is High Definition Multimedia Interface (HDMI) and the second communication protocol is Digital Visual Interface (DVI), the first component being a first DVI component, the second component being a second DVI component, the source end component being a first HDMI component, and the receiver end component being a second HDMI component, neither DVI component encrypting or decrypting the multimedia data.

21. The system of claim 20, wherein the DVI components communicate over wired links with their respective HDMI components.

22. The system of claim 18, wherein the multimedia data is encrypted using High-Bandwidth Digital Content Protection (HDCP).

23. A system for communicating digital multimedia data, comprising:

first DVI means for receiving encrypted multimedia data and processing the encrypted multimedia data without decrypting it;

wireless transmitting means for receiving the encrypted multimedia data including video data and audio data multiplexed within the video data and for wirelessly transmitting the encrypted multimedia data;

wireless receiving means receiving the multimedia data; and

second DVI means for processing data from the wireless receiving means.

24. The system of claim 23, comprising:

a first High Definition Multimedia Interface (HDMI) component sending, over at least one wire, encrypted multimedia data to the first DVI means;

a second High Definition Multimedia Interface (HDMI) component receiving, over at least one wire, encrypted multimedia data from the second DVI means; and

display means coupled to the second HDMI component for displaying the multimedia data.

25. The system of claim 23, wherein the wireless receiving means in the same space as the wireless transmitting means.

26. The system of claim 23, wherein the multimedia data is encrypted using High-Bandwidth Digital Content Protection (HDCP).

27. A module for processing digital multimedia data including audio data and video data received on a wireless link, comprising:

a wireless radio configured for receiving the multimedia data in encrypted form from a wireless transmitter in the same space as the wireless receiver;

a processor capable of multiplexing control data for a multimedia display within the multimedia data; and

a DVI component receiving encrypted multimedia data from the wireless receiver and configured for sending the multimedia data, including audio data multiplexed in with video data, to a HDMI component without encrypting or decrypting the data.

28. The module of claim 27, wherein the DVI component communicates over a wired link with the HDMI component.

29. The module of claim 27, wherein the multimedia data is encrypted using High-Bandwidth Digital Content Protection (HDCP).

30. The module of claim 27, wherein the multimedia data is wirelessly transmitted at approximately sixty GigaHertz (60 GHz).

31. The module of claim 27, wherein the multimedia data is high definition (HD) multimedia data.

32. The module of claim 27, wherein the audio data is at least one of:

multiplexed in a blanking interval of a video data stream, and multiplexed with a video data stream using the falling edge of a clock signal.