Replay of media stream from a prior change location

• US 20070113182A1
• Filed: 01/24/2005
• Published: 05/17/2007
• Est. Priority Date: 01/26/2004
• Status: Abandoned Application

• Current Assignee: Pace Micro Technology PLC (CommScope Holding Company, Inc.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Hollemans, Gerard
• Application Number:
  US10/586,937
• Publication Number:
  US 20070113182A1
• Time in Patent Office: Days
• US Class Current: 715/723
• CPC Class Codes: G06F 16/745 the internal structure of a single video sequence
• CPC Class Codes: G06F 16/7834 using audio features
• CPC Class Codes: G06F 16/7864 using domain-transform features, e.g. DCT or wavelet transform coefficients
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/102 Programmed access in sequence to addressed parts of tracks of operating record carriers access by moving the head G11B3/08, G11B5/54, G11B7/085, G11B21/022; by moving the record carrier G11B15/005, G11B17/005, by driving of both record carrier and head G11B15/1816
• 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 21/4325 by playing back content from the storage medium reproduction of recorded television signals H04N5/76; reproduction of recorded television signals H04N9/79
• CPC Class Codes: H04N 21/4394 involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams arrangements characterised by components specially adapted for monitoring, identification or recognition of audio in broadcast systems H04H60/58
• 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 5/147 Scene change detection
• 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 9/8042 involving data reduction

Abstract

A playback option that the user can engage causes the video stream (30) to move backward to the previous change points (L_N-L₁) of the video stream (30) in sequence, and then play the video stream (30) forward from one of the prior change points selected by the user. The change points of a video stream (30) that occur prior to the current play point (T) of the video stream (30) are generated in real time or included in the video stream (30). The change points (L_N-L₁) can be speech breaks, shot cuts and movement of persons or objects in the video stream (30).

Claims

1. ) A method of replaying a media stream (30) from a previous location (L_N-L₁) in the media stream (30), the method comprising replaying the media stream (140, 140a) from a selected one of a number of previously identified content changes (120, 120a) in the media stream (30), the content changes comprising prior speech breaks in the media stream (30).

2. ) The method of claim 1, wherein the media stream (30) is a video stream (30) and the previously identified content changes (120, 120a) further comprise at least one of shot cuts and changes of motion.

3. ) The method of claim 1, wherein the prior speech breaks comprise commencement of speech after a relative period of silence in the media stream (30).

4. ) The method of claim 1, further comprising receiving a control command (130, 130a) used to select the one previous content change in the media stream (30) from which to replay (140, 140a).

5. ) The method of claim 4, wherein the control command (130, 130a) comprises a number m of input signals, the m input signals used to select the mth previous content change in the media stream from which to commence replay (140, 140a).

6. ) The method of claim 4, wherein the control command (130, 130a) used to select the one content change from which to replay (140, 140a) is processed based on prior control commands received.

7. ) The method of claim 4, wherein the control command received (130, 130a) is generated by at least one of a manual input, a voice input and a gesture recognition.

8. ) The method of claim 1, further comprising identifying and storing the locations of the prior content changes in real time (120) while the media stream (30) is playing, the replaying of the media stream from the selected prior content change (140) utilizing the stored location corresponding to the selected content change.

9. ) The method of claim 1, further comprising identifying the locations of prior content changes in the media stream from data included in the media stream (120a), the replaying of the media stream from the selected prior content change (140a) utilizing the location of the selected content change included in the media stream (30).

10. ) The method of claim 1, further comprising generating the media stream (100) from at least one of a magnetic tape, an optical disc, a server and a hard drive.

11. ) The method of claim 1, further comprising receiving the media stream (100) from an external source.

12. ) The method of claim 11, further comprising recording the received media stream and replaying from the recorded media stream.

13. ) The method of claim 1, wherein the replaying of the media stream (140, 140a) from a selected one of a number of previously identified content changes (120, 120a) in the media stream (30) is a function of the type of content change.

14. ) A method of replaying a digital media stream (30) from a location in the media stream prior to the current play position T of the media stream (30), the method comprising the steps of:

a) detecting content change locations (L_N-L₁) in real-time as the media stream plays (120);

b) storing at least a number of the closest change locations detected prior to play position T (120);

c) receiving one or more input signals comprising a number m (130);

d) retrieving from memory the mth closest change location prior to position T in the media stream; and

e) replaying the media stream from the mth closest change location to T in the media stream (140).

15. ) The method of claim 14, wherein the media stream (30) is at least one of an audio stream and a video stream.

16. ) The method of claim 15, wherein the change locations are comprised of speech break locations in the media stream.

17. ) The method of claim 16, wherein the media stream (30) is a video stream and the change locations are further comprised of at least one of shot cut locations and change of motion locations.

18. ) A system (10) that replays a media stream (30) from a previous location (L_N-L₁) in the media stream (30), the system (10) having a processor (50) and a memory, the processor (50) receiving one or more input signals selecting one of a number of previously identified content changes in the media stream (30), the processor (50) further retrieving from memory a location (L_N-L₁) corresponding to the selected content change and activating replay of the media stream (30) from the selected change location (L_N-L₁), wherein the content changes identified comprise prior speech breaks in the media stream (30).

19. ) The system (10) as in claim 18, wherein the processor (50) further identifies the content changes in the media stream (30) and stores their locations (L_N-L₁) as the media stream (30) plays.

20. ) The system (10) as in claim 18, wherein the system (10) further generates the media stream (30).

21. ) The system (10) as in claim 18, wherein the system (10) further receives the media stream (30) and records the media stream (30).

22. ) The system (10) as in claim 18, wherein the system (10) is comprised of a single device (20) that houses the processor (50) and memory, receives the input signals, and activates the replay.

23. ) The system (10) as in claim 22, wherein the device (20) is one of a VCR, a CD player, a DVD player, and a PC.

24. ) A computer program product embodied in a computer-readable medium to replay a media stream (30) from a selected prior location (L_N-L₁) in the media stream (30), the computer program product comprising:

a) computer readable program code that detects content changes in real time as the media stream plays (120);

b) computer readable program code that stores in a memory at least a number of the locations (L_N-L₁) of the closest content changes in the media stream detected prior to play position T (120);

c) computer readable program code that receives one or more input signals comprising a number m (130);

d) computer readable program code that retrieves from memory the mth closest change location prior to position T in the media stream; and

e) computer readable program code that generates an output signal to replay the media stream from the mth closest change location prior to T (140).