Remote encoder system and method for capturing the live presentation of video multiplexed with images

• US 7,383,344 B2
• Filed: 02/14/2003
• Issued: 06/03/2008
• Est. Priority Date: 02/14/2003
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Hunter, Kurt M.
• Primary Examiner(s): MEKY, MOUSTAFA M
• Application Number:
  US10/366,741
• Publication Number:
  US 20040160992A1
• Time in Patent Office: 1,936 Days
• Field of Search: 709200-202, 709/231, 370/493, 370/509, 348/423.1, 375/240.01
• US Class Current: 709/231
• CPC Class Codes: G09B 5/06 with both visual and audible presentation of the material to be studied
• CPC Class Codes: G09B 5/08 providing for individual presentation of information to a plurality of student stations
• CPC Class Codes: H04N 21/2187 Live feed
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2365 Multiplexing of several video streams
• CPC Class Codes: H04N 21/43072 of multiple content streams on the same device
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format
• CPC Class Codes: H04N 21/858 Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
• CPC Class Codes: H04N 7/52 Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal assembling of a multiplex stream by combining a video stream with other content or additional data, remultiplexing of multiplex streams, insertion of stuffing bits into the multiplex stream, assembling of a packetised elementary stream at server side H04N21/236; disassembling of a multiplex stream, remultiplexing of multiplex streams, extraction or processing of Service Information, disassembling of packetised elementary stream at client side H04N21/434

Abstract

A system for use with a speaker providing audio and video in conjunction with images being provided by a podium computer responsive to the speaker as part of a live multimedia presentation. A device provides video signals and audio signals wherein the video signals correspond to the video provided by the speaker and the audio signals correspond to the audio provided by the speaker. A transmitter transmits a signal corresponding to a timing of images occurring simultaneously with the video and audio. A receiver receives the transmitted signal. A video channel converts the video signal into a digital video signal. An audio channel converts the audio signal into a digital audio signal. A receiver channel responsive to the receiver provides a timing signal corresponding to the transmitted signal and representing a timing of the images relative to the video and the audio. A media stream multiplexer multiplexes the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

Claims

1. An apparatus for providing multiplexed video, audio and events indicated by a transmitted signal comprising:

a video channel for receiving the video and providing a digital video signal corresponding thereto;

an audio channel for receiving the audio and providing a digital audio signal corresponding thereto;

a receiver channel for providing a timing signal corresponding to the transmitted signal and representing a timing of the events relative to the video and the audio;

a media stream multiplexer for multiplexing the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

2. The apparatus of claim 1 wherein the video channel comprises a video digitizer, wherein the audio channel comprises an audio digitizer and wherein the receiver channel comprises signal converter logic for converting the transmitted signal into the timing signal.

3. The apparatus of claim 1 wherein each event is a display of one of a sequence of images and wherein the transmitted signal indicates when the display changes from a former image to a subsequent image.

4. The apparatus of claim 3 wherein the display is provided by a podium computer which sequentially displays the images in response to an indication from a user.

5. The apparatus of claim 4 wherein the podium computer includes a mouse and wherein the indication is a mouse click.

6. An apparatus for providing multiplexed video, audio and events comprising:

a transmitter transmitting a signal corresponding to a timing of the events;

a receiver receiving the transmitted signal;

a video channel for converting the video into a digital video signal;

an audio channel for converting the audio into a digital audio signal;

a receiver channel responsive to the receiver for providing a timing signal corresponding to the transmitted signal and representing a timing of the events relative to the video and the audio;

a media stream multiplexer for multiplexing the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

7. The apparatus of claim 6 wherein the video channel comprises a video digitizer, wherein the audio channel comprises an audio digitizer and wherein the receiver channel comprises signal converter logic for converting the transmitted signal into the timing signal.

8. The apparatus of claim 6 wherein each event is a display of one of a sequence of images and wherein the transmitted signal indicates when the display changes from a former image to a subsequent image.

9. The apparatus of claim 8 wherein the display is provided by a podium computer which sequentially displays the images in response to an indication from a user.

10. The apparatus of claim 9 wherein the podium computer includes a mouse and wherein the indication is a mouse click.

11. A system for use with a speaker providing audio and video in conjunction with images being provided by a podium computer responsive to the speaker, said system comprising:

a device for providing video signals and audio signals wherein the video signals correspond to the video provided by the speaker and the audio signals correspond to the audio provided by the speaker;

a transmitter transmitting a signal corresponding to a timing of images occurring simultaneously with the video and audio;

a receiver receiving the transmitted signal;

a video channel for converting the video signal into a digital video signal;

an audio channel for converting the audio signal into a digital audio signal;

a receiver channel responsive to the receiver for providing a timing signal corresponding to the transmitted signal and representing a timing of the images relative to the video and the audio;

a media stream multiplexer for multiplexing the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

12. The system of claim 11 wherein the video channel comprises a video digitizer, wherein the audio channel comprises an audio digitizer and wherein the receiver channel comprises signal converter logic for converting the transmitted signal into the timing signal.

13. The system of claim 11 wherein each event is a display of one of a sequence of images and wherein the transmitted signal indicates when the display changes from a former image to a subsequent image.

14. The system of claim 13 wherein the display is provided by a podium computer which sequentially displays the images in response to an indication from a user.

15. The system of claim 14 wherein the podium computer includes a mouse and wherein the indication is a mouse click.

16. In an encoder including a computer readable medium having computer executable instructions for providing multiplexed video, audio and events indicated by a transmitted signal, said instructions comprising:

video instructions for converting the video into a digital video signal;

audio instructions for converting the audio into a digital audio signal;

receiver instructions for providing a timing signal corresponding to the transmitted signal and representing a timing of the events relative to the video and the audio;

a media stream multiplexer for multiplexing the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

17. The instructions of claim 16 wherein the video instructions comprise a video digitizer, wherein the audio instructions comprise an audio digitizer and wherein the receiver instructions comprises signal converter logic for converting the transmitted signal into the timing signal.

18. The instructions of claim 16 wherein each event is a display of one of a sequence of images and wherein the transmitted signal indicates when the display changes from a former image to a subsequent image.

19. The instructions of claim 18 wherein the display is provided by a podium computer which sequentially displays the images in response to an indication from a user.

20. The instructions of claim 19 wherein the podium computer includes a mouse and wherein the indication is a mouse click.

21. A method for providing multiplexed video, audio and events indicated by a transmitted signal comprising:

converting the video into a digital video signal;

converting the audio into a digital audio signal;

generating a timing signal corresponding to the transmitted signal and representing a timing of the events relative to the video and the audio;

multiplexing the digital video signal, the digital audio signal and the timing signal into an ISM (immediately stream-able media) format.

22. A computer-readable medium having computer-executable instructions that, when executed by a computer, performs the method as recited in claim 21.

23. The method of claim 21 wherein the converting the video comprises digitizing the video and wherein converting the audio comprises digitizing the audio.

24. The method of claim 21 wherein each event is a display of one of a sequence of images and wherein the transmitted signal indicates when the display changes from a former image to a subsequent image.

25. The method of claim 24 wherein the display is provided by a podium computer which sequentially displays the images in response to an indication from a user.

26. The method of claim 25 wherein the podium computer includes a mouse and wherein the indication is a mouse click.