Method and apparatus for catch-up video viewing

• US 6,762,797 B1
• Filed: 04/14/1999
• Issued: 07/13/2004
• Est. Priority Date: 04/14/1999
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Pelletier, Daniel
• Primary Examiner(s): Garber, Wendy R.
• Assistant Examiner(s): HANNETT, JAMES M
• Application Number:
  US09/291,841
• Time in Patent Office: 1,917 Days
• Field of Search: 348/715, 348/907, 348/559, 348/707, 386/68, 386/66
• US Class Current: 348/559
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 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 21/4333 Processing operations in response to a pause request
• CPC Class Codes: H04N 21/440281 by altering the temporal resolution, e.g. by frame skipping television signal recording using magnetic recording on tape for reproducing at a rate different from the recording rate H04N5/783
• CPC Class Codes: H04N 21/47217 for controlling playback functions for recorded or on-demand content, e.g. using progress bars, mode or play-point indicators or bookmarks specific graphical features in visual interfaces H04N21/4312
• CPC Class Codes: H04N 5/4448 for frame-grabbing
• CPC Class Codes: H04N 5/76 Television signal recording

Abstract

A method and apparatus are provided for catching-up on viewing a program on a viewing device. The apparatus according to an embodiment of the invention includes a storing mechanism configured for simultaneously recording and playing back digital video and audio streams. A controller is configured to control the storing mechanism to record and play back the digital video and audio streams. The controller is also configured to determine an accelerated playback speed that allows a viewer to catch-up to a real time viewing of the program. A playback mechanism operatively coupled between the storing mechanism and the viewing device is configured to control a playback speed of the video and audio streams provided to the viewing device from the storage mechanism in accordance with the accelerated playback speed.

Claims

1. An apparatus for permitting a viewer to view previously recorded material and catch-up with a real time viewing of a program on a viewing device, comprising:

a storing mechanism configured for simultaneously recording and playing back digital video and audio streams;

a controller configured for controlling said storing mechanism to record and play back the digital video and audio streams, said controller calculates an initial optimum accelerated playback speed comprising a catch-up speed to play back a portion of the video and audio streams that were not viewed, said initial optimum catch-up speed based upon a time in which the video and audio streams were unviewed so as to permit viewing at the catch-up speed that allows a viewer to catch-up to a real time viewing of the program, wherein said catch-up speed calculated by the controller includes taking into account a time period for commercials that are bypassed upon viewing at the catch-up speed; and

a playback mechanism operatively coupled between said storing mechanism and the viewing device configured for controlling a playback speed of the video and audio streams provided to the viewing device from said storage mechanism in accordance with the accelerated playback speed.

2. The apparatus according to claim 1, further comprising a user interface configured for inputting commands to said controller.

3. The apparatus according to claim 2, wherein the commands comprise a first command indicating a time when the viewer is not viewing the program and a second command indicating a time when the viewer is ready to resume viewing of the program.

4. The apparatus according to claim 3, wherein the accelerated playback speed is based on at least the difference between the time corresponding to the first command and the time corresponding to the second command.

5. The apparatus according to claim 3, wherein said storing mechanism begins recording the program at the time corresponding to the first command.

6. The apparatus according to claim 3, wherein said storing mechanism begins playing back a portion of the recorded program while recording a subsequent portion of the program at the time corresponding to the second command.

7. The apparatus according to claim 1, further comprising an analog-to-digital converter operatively coupled to said storing mechanism for converting analog video and audio streams to the digital video and audio streams.

8. The apparatus according to claim 1, wherein the viewing device is an analog viewing device, and the apparatus further comprises a digital-to-analog converter operatively coupled between said playback mechanism and the viewing device for converting the digital video and audio streams to analog video and audio streams.

9. The apparatus according to claim 1, wherein said storage mechanism is a hard disk drive.

10. The apparatus according to claim 1, wherein the viewing device is one of a television and a computer monitor.

11. The apparatus according to claim 1, wherein said playback mechanism is one of a delay and buffer.

12. The apparatus according to claim 1, further comprising a speed control device operatively coupled to said controller configured for allowing the viewer to override and adjust the playback speed of the video and audio streams provided to the viewing device from said storage mechanism.

13. The apparatus according to claim 1, further comprising an editing device operatively coupled to said storing mechanism and said controller configured for detecting and removing commercials from the digital video and audio streams.

14. A method for permitting a viewer to catch-up to real time viewing of a program while viewing previously recorded material from said program on a viewing device, comprising the steps of:

recording the program, when a first time instance is identified corresponding to a viewer not viewing the program;

calculating an accelerated playback speed comprising an initial optimum catch-up speed to play back a portion of the program in which the view did not view the program, said initial optimum catch-up speed calculated by a time period of the non-viewing so as to permit viewing at the optimum catch-up speed that allows a viewer to catch-up to a real time viewing of the program, said time period being based on at least a difference between the first time instance and a second time instance when the viewer is ready to resume viewing of the program so as to determine the initial optimum catch-up speed, wherein said catch-up speed calculated by the controller includes taking into account a time period for commercials that are bypassed upon viewing at the catch-up speed; and

playing back a portion of the program at the accelerated viewing speed while recording a subsequent portion of the program, until the viewer is caught-up to the real time viewing of the program.

15. The method according to claim 14, further comprising the step of allowing the viewer to override and adjust the accelerated viewing speed.

16. The method according to claim 14, further comprising the step of detecting and removing commercials from the program.

17. An apparatus for catching-up on viewing a program on a viewing device, comprising:

first, second, and third magnetic tapes configured for storing video and audio streams thereon;

a playback mechanism configured for playing back the video and audio streams from said first, second, and third magnetic tapes on the viewing device;

a recording mechanism configured for recording the video and audio streams to said first, second, and third magnetic tapes;

a rewinding mechanism configured for rewinding said first, second, and third magnetic tapes; and

a controller configured for calculating an initial optimum accelerated playback speed comprising a catch-up speed so as to play back a portion of the video and audio streams that were not viewed/listened thereto, said initial optimum catch-up speed based upon a time in which the video and audio streams were unviewed so as to permit viewing at an accelerated playback speed that allows a viewer to catch-up to a real time viewing of the program, and for controlling said recording, playback, and rewinding mechanisms to cycle between recording, playback, and rewinding modes, respectively, until the viewer is caught up to the real time viewing of the program, wherein said controller controls said playback mechanism to playback the video and audio streams in accordance with the accelerated playback speed, and

wherein said catch-up speed calculated by the controller includes taking into account a time for commercials that are bypassed upon viewing at the catch-up speed.

18. The apparatus according to claim 17, further comprising a user interface configured for inputting commands to said controller.

19. The apparatus according to claim 18, wherein the commands comprise a first command indicating a time when the viewer is not viewing the program and a second command indicating a time when the viewer is ready to resume viewing of the program.

20. The apparatus according to claim 19, wherein the accelerated playback speed is based on at least the difference between the time corresponding to the first command and the time corresponding to the second command.

21. The apparatus according to claim 17, further comprising a speed control device operatively coupled to said controller configured for allowing the viewer to override and adjust the playback speed of the video and audio streams provided to the viewing device.

22. A method for catching-up on viewing a program on a viewing device, comprising the steps of:

(a) recording the program on a first magnetic tape, when a first time instance is identified corresponding to a viewer not viewing the program;

(b) recording the program on a second magnetic tape and rewinding the first magnetic tape, when a second time instance is identified corresponding to the viewer being ready to resume viewing of the program;

(c) calculating an accelerated viewing speed comprising an initial optimum catch-up speed to play back a portion of the video and audio streams that were not viewed, said initial optimum catch-up speed based upon a time in which the video and audio streams were unviewed so as to permit viewing at the catch-up speed so that the viewer can catch-up to a real time viewing of the program, the speed being based on at least a difference between the first and second time instances, wherein said catch-up speed calculated by the controller includes taking into account a time for commercials that are bypassed upon viewing at the catch-up speed;

(d) recording on a third magnetic tape, rewinding the second magnetic tape, and playing back the recorded program from the first magnetic tape;

(e) recording on the first magnetic tape, rewinding the third magnetic tape, and playing back the recorded program from the second magnetic tape;

(f) recording on the second magnetic tape, rewinding the first magnetic tape, and playing back the recorded program from the third magnetic tape;

(g) determining whether the viewer is caught up to the real time viewing of the program; and

(h) returning to step (d), when the viewer is not caught up to the real time viewing of the program.

23. The method according to claim 22, further comprising the step of allowing the viewer to override and adjust the accelerated viewing speed.

24. The method according to claim 22, further comprising the step of detecting and removing commercials from the program.