Process for distributing video sequences, decoder and system for carrying out this process

• US 20050283811A1
• Filed: 07/14/2005
• Published: 12/22/2005
• Est. Priority Date: 01/15/2003
• Status: Abandoned Application

• Current Assignee: Querell Data LLC (Intellectual Ventures LLC)
• Original Assignee: Medialive (Kudelski SA)
• Inventors: LeComte, Daniel
• Application Number:
  US11/181,077
• Publication Number:
  US 20050283811A1
• Time in Patent Office: Days
• US Class Current: 725/95
• CPC Class Codes: H04N 21/23473 by pre-encrypting
• CPC Class Codes: H04N 21/23476 by partially encrypting, e.g. encrypting the ending portion of a movie
• CPC Class Codes: H04N 21/25875 involving end-user authentication restricting access to computer systems by authenticating users using a predetermined code G06F21/33; arrangements for secret or secure communication including means for verifying the identity or authority of a user of the system H04L9/32; networks authentication protocols H04L63/08; authentication in wireless network security H04W12/06
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• CPC Class Codes: H04N 21/4184 providing storage capabilities, e.g. memory stick
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/44055 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/6581 Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
• CPC Class Codes: H04N 21/845 Structuring of content, e.g. decomposing content into time segments
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

A process for distributing video sequences including broadcasting a main digital stream and complementary information necessary for displaying a video sequence, and reconstructing the displayable video stream at a reception site on apparatus having a screen, wherein the recaption site includes a personal computer with mass storage and a peripheral for video processing provided with a communicator for the personal computer and transmitting the displayable video stream to a display device, wherein the main digital stream is received by the personal computer and a software application for reconstructing the display stream is executed in the video processing peripheral and not in the personal computer.

Claims

1. A process for distributing video sequences comprising:

broadcasting a main digital stream and complementary information necessary for displaying a video sequence, and reconstructing the displayable video stream at a reception site on apparatus having a screen, wherein the reception site comprises a personal computer with mass storage and a peripheral for video processing provided with a communicator for the personal computer and transmitting the displayable video stream to a display device, wherein the main digital stream is received by the personal computer and a software application for reconstructing the display stream is executed in the video processing peripheral and not in the personal computer.

2. The process according to claim 1, wherein the main digital stream is transmitted by a server via a digital network and the personal computer comprises a high-speed connection for receiving the main digital stream.

3. The process according to claim 1, wherein the main digital stream is transmitted by a server via a material support and the personal computer comprises a reader for exploiting the digital support and reading the main digital stream.

4. The process according to claim 1, wherein the complementary information is received by the personal computer and the main digital stream and the complementary information are transmitted by the personal computer to the video processing peripheral.

5. The process according to claim 1, wherein the complementary information is received by the video processing peripheral and the main digital stream is transmitted by the personal computer to the video processing peripheral.

6. The process according to claim 5, wherein the main digital stream is received by the video processing peripheral and that the main digital stream is transmitted by the video processing peripheral to the computer to be recorded in its mass storage to be replayed subsequently.

7. The process according to claim 1, wherein the main digital stream conforms to a norm or standard of the original video stream.

8. The process according to claim 1, wherein the personal computer comprises a routing module for the complementary information between a server and the video processing peripheral of the decoder.

9. The process according to claim 1, wherein an authentication is performed between a video server and the video processing peripheral of the decoder during a request for complementary information and the information relative to authentication flows via a path separate from the personal computer.

10. The process according to claim 1, wherein an authentication is performed between a video server and the video processing peripheral of the decoder during a request for complementary information and the information relative to the authentication flows via the personal computer.

11. A decoder comprising an input that receives a digital stream sent from a personal computer, a video processing circuit that reconstructs a displayable stream from a main digital stream and complementary information, and an output delivering a video signal that can be displayed on a display device.

12. The decoder according to claim 11, having no mass storage device.

13. The decoder according to claim 11, further comprising a communication device that communicates with a network for reception of the complementary information.

14. The decoder according to claim 11, further comprising a communication device for communicating with the personal computer for reception of the complementary information.

15. The decoder according to claim 11, further comprising a card reader containing the complementary information.

16. The decoder according to claim 11, further comprising a device for wireless communication with the personal computer.

17. A system comprising a decoder according to claim 11 and a personal computer comprising a reader for disks on which main digital streams are recorded and the decoder comprises means for communicating with the personal computer for receiving the main digital stream.