Time shifting by concurrently recording and playing a data stream

• US 6,591,058 B1
• Filed: 06/30/1999
• Issued: 07/08/2003
• Est. Priority Date: 12/23/1997
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Chuang, Mark P., Davies, Robert L., Yeo, Boon-Lock, OʼConnor, Dennis M.
• Primary Examiner(s): Chevalier, Robert
• Application Number:
  US09/343,870
• Time in Patent Office: 1,469 Days
• Field of Search: H04/N.591, H04/N.593, 386/4, 386/1, 386/52, 386/53, 386/55, 386/57, 386/65, 386/68, 386/46, 386/69, 386/95, 386/107, 386/117, 386/6, 386/109, 345/723
• US Class Current: 386/248
• CPC Class Codes: G11B 2020/10962 wherein both recording and playback take place simultaneously
• CPC Class Codes: G11B 2220/218 Write-once discs
• CPC Class Codes: G11B 2220/2516 Hard disks
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/455 said record carriers being in one device and being used as primary and secondary/backup media, e.g. HDD-DVD combo device, or as source and target media, e.g. PC and portable player
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content
• CPC Class Codes: G11B 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: H04N 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• 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 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 5/91 : Television signal processing therefor

Abstract

A video stream may include portions that are stored while other portions are being displayed. In one embodiment, a portion of the video stream may be stored in digital storage media at one instance while in the next instance another portion of the stream is being read out of the storage media.

Claims

1. A method of displaying and recording a video transmission comprising:

requesting scene change time information; and

using said scene change time information to identify scenes in stored video information by matching said scene change time information to time information associated with a plurality of video files.

2. The method of claim 1 wherein requesting scene change time information includes issuing a request from a video receiver, and transmitting said request to a source of scene change time information.

3. The method of claim 2 including receiving scene change time information from a source of scene change time information external to said receiver.

4. The method of claim 1 wherein using said scene change time information includes matching said scene change time information to time information associated with a plurality of video files.

5. The method of claim 1 further including storing video information, matching said stored video information to said scene change time information, and displaying representative frames of said video information which correspond to said scene change times.

6. The method of claim 1 wherein using said scene change time information includes receiving scene change time information corresponding to scene change times in a transmitted video presentation, storing said transmitted video presentation received on a receiver together with information about the time when the video information was received, and matching said presentation stored on said receiver to the corresponding times in said scene change time information.

7. A method of displaying and recording a video transmission comprising:

storing video information;

requesting scene change time information;

using said scene change time information to identify scenes in stored video information;

matching said stored video information to scene change time information; and

displaying representative frames of said video information to correspond to said scene change times.

8. The method of claim 7 wherein requesting scene change time information includes issuing a request from a video receiver, and transmitting said request to a source of scene change time information.

9. The method of claim 8 including receiving scene change time information from a source of scene change time information external to said receiver.

10. The method of claim 7 wherein using said scene change time information includes matching said scene change time information and time information associated with a plurality of video files.

11. The method of claim 7 wherein using scene change time information includes receiving scene change time information corresponding to scene change times in a transmitted video presentation, storing said transmitted video presentation received on a receiver together with information about the time when the video information was received, and matching said presentation stored on said receiver to the corresponding times in said scene change time information.

12. A method of displaying and recording a video transmission comprising:

requesting scene change time information;

using said scene change time information to identify scenes in said stored video information including receiving scene change time information corresponding to scene change times in a transmitted video presentation;

storing said transmitted video presentation received on a receiver together with information about the time when the video transmission was received; and

matching said presentation stored on said receiver to corresponding times in said scene change information.

13. The method of claim 12 wherein requesting scene change time information through issuing a request from a video receiver, and transmitting said request to a source of scene change time information.

14. The method of claim 13 including receiving said scene change time information from a source of scene change time information external to said receiver.

15. The method of claim 12 wherein using said scene change time information includes matching said scene change time information and time information associated with a plurality of video files.

16. The method of claim 12 further including storing video information, matching said stored video information to said scene change time information, and displaying representative frames of said video information which correspond to said scene change times.