CLOSED CAPTION TAGGING SYSTEM

• US 20120114301A1
• Filed: 10/05/2011
• Published: 05/10/2012
• Est. Priority Date: 07/30/1998
• Status: Active Grant

• Current Assignee: TiVo Solutions Inc. (Adeia Inc.)
• Original Assignee: TiVo Inc. (Adeia Inc.)
• Inventors: Barton, Jim, Smith, Kevin, Chamberlin, David, Look, Howard
• Granted Patent: US 8,781,298 B2
• Time in Patent Office: Days
• US Class Current: 386/241
• 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: G11B 27/322 used signal is digitally coded
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• 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 21/4305 Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets arrangements for synchronising receiver with transmitter by comparing receiver clock with transmitter clock H04L7/0012; arrangements for synchronising receiver with transmitter wherein the receiver takes measures against momentary loss of synchronisation H04L7/0083
• 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 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/44016 involving splicing one content stream with another content stream, e.g. for substituting a video clip
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/458 Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations arrangements for replacing or switching information during the broadcast or during the distribution H04H20/10
• CPC Class Codes: H04N 21/47 End-user applications
• CPC Class Codes: H04N 21/47214 for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market stock exchange data over packet-switching network H04L12/1804; push services over packet-switching network H04L12/1859; notification of incoming messages in packet switching networks H04L51/224
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 21/6543 for forcing some client operations, e.g. recording remote booting in general G06F9/4416
• CPC Class Codes: H04N 21/6587 Control parameters, e.g. trick play commands, viewpoint selection
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73
• CPC Class Codes: H04N 21/8455 : involving pointers to the content, e.g. pointers to the I-frames of the video stream
• CPC Class Codes: H04N 21/8456 : by decomposing the content in the time domain, e.g. in time segments
• CPC Class Codes: H04N 5/445 : for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/76 : Television signal recording
• 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 5/782 : on tape
• CPC Class Codes: H04N 5/783 : Adaptations for reproducing at a rate different from the recording rate
• CPC Class Codes: H04N 5/85 : on discs or drums
• CPC Class Codes: H04N 7/088 : the inserted signal being digital
• CPC Class Codes: H04N 7/165 : Centralised control of user terminal subsequent to an upstream request signal H04N7/17345; Registering at central by two-way working H04N7/17309
• CPC Class Codes: H04N 9/79 : Processing of colour television signals in connection with recording
• CPC Class Codes: H04N 9/7921 : for more than one processing mode
• CPC Class Codes: H04N 9/8042 : involving data reduction
• CPC Class Codes: H04N 9/8063 : using time division multiplex of the PCM audio and PCM video signals
• CPC Class Codes: H04N 9/8205 : involving the multiplexing of an additional signal and the colour video signal
• CPC Class Codes: H04N 9/8233 : the additional signal being a character code signal

Abstract

A closed caption tagging system provides a mechanism for inserting tags into an audio or video television broadcast stream prior to or at the time of transmission. The tags contain command and control information that the receiver translates and acts upon. The receiver receives the broadcast stream and detects and processes the tags within the broadcast stream which is stored on a storage device that resides on the receiver. Program material from the broadcast stream is played back to the viewer from the storage device. Tags indicate the start and end points of a program segment. Program segments such as commercials are automatically replaced by the receiver with new program segments that are selected based on various criteria.

Claims

1. A method, comprising:

detecting an end point of a first program segment in a broadcast stream by detecting an end tag in the broadcast stream that is indicative of the end point of the first program segment;

responsive to detecting the end tag;

searching for a start tag, in the broadcast stream, that is associated with the end tag and is indicative of the start point of the first program segment;

identifying, by a device, the first program segment based on the start tag and the end tag.

2. The method of claim 1, wherein the end tag is detected during a rewind operation being performed by the device.

3. The method of claim 1, further comprising replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

4. The method of claim 1, further comprising overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

5. The method of claim 1, wherein the end tag comprises one or more of:

a unique indicator identifying the end tag or a tag type of the end tag.

6. The method of claim 1, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

7. The method of claim 1, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

8. The method of claim 1, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.

9. A method, comprising:

detecting a start point of a first program segment in a broadcast stream, during a fast-forward operation being performed by a device, by detecting a start tag in the broadcast stream that is indicative of the start point of the first program segment;

responsive to detecting the start tag;

searching for an end tag, in the broadcast stream, that is associated with the start tag and is indicative of the end point of the first program segment;

identifying, by the device, the first program segment based on the start tag and the end tag.

10. The method of claim 9, further comprising replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

11. The method of claim 9, further comprising overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

12. The method of claim 9, wherein the start tag comprises one or more of:

a unique indicator identifying the start tag or a tag type of the start tag.

13. The method of claim 9, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

14. The method of claim 9, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

15. The method of claim 9, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.

16. A non-transitory computer readable medium comprising instructions which, when executed by one or more processors, performs steps comprising:

detecting an end point of a first program segment in a broadcast stream by detecting an end tag in the broadcast stream that is indicative of the end point of the first program segment;

responsive to detecting the end tag;

searching for a start tag, in the broadcast stream, that is associated with the end tag and is indicative of the start point of the first program segment;

identifying, by a device, the first program segment based on the start tag and the end tag.

17. The computer readable medium of claim 16, wherein the end tag is detected during a rewind operation being performed by the device.

18. The computer readable medium of claim 16, wherein the steps further comprise replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

19. The computer readable medium of claim 16, wherein the steps further comprise overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

20. The computer readable medium of claim 16, wherein the end tag comprises one or more of:

a unique indicator identifying the end tag or a tag type of the end tag.

21. The computer readable medium of claim 16, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

22. The computer readable medium of claim 16, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

23. The computer readable medium of claim 16, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.

24. A non-transitory computer readable medium comprising instructions which, when executed by one or more processors, performs steps comprising:

detecting a start point of a first program segment in a broadcast stream, during a fast-forward operation being performed by a device, by detecting a start tag in the broadcast stream that is indicative of the start point of the first program segment;

responsive to detecting the start tag;

searching for an end tag, in the broadcast stream, that is associated with the start tag and is indicative of the end point of the first program segment;

identifying, by the device, the first program segment based on the start tag and the end tag.

25. The computer readable medium of claim 24, wherein the steps further comprise replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

26. The computer readable medium of claim 24, wherein the steps further comprise overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

27. The computer readable medium of claim 24, wherein the start tag comprises one or more of:

a unique indicator identifying the start tag or a tag type of the start tag.

28. The computer readable medium of claim 24, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

29. The computer readable medium of claim 24, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

30. The computer readable medium of claim 24, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.

31. A system comprising:

one or more processors;

a computer readable medium comprising instructions which, when executed by the one or more processors, performs steps comprising;

detecting an end point of a first program segment in a broadcast stream by detecting an end tag in the broadcast stream that is indicative of the end point of the first program segment;

responsive to detecting the end tag;

searching for a start tag, in the broadcast stream, that is associated with the end tag and is indicative of the start point of the first program segment;

identifying, by a device, the first program segment based on the start tag and the end tag.

32. The system of claim 31, wherein the end tag is detected during a rewind operation being performed by the device.

33. The system of claim 31, wherein the steps further comprise replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

34. The system of claim 31, wherein the steps further comprise overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

35. The system of claim 31, wherein the end tag comprises one or more of:

a unique indicator identifying the end tag or a tag type of the end tag.

36. The system of claim 31, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

37. The system of claim 31, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

38. The system of claim 31, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.

39. A system comprising:

one or more processors;

a computer readable medium comprising instructions which, when executed by the one or more processors, performs steps comprising;

detecting a start point of a first program segment in a broadcast stream, during a fast-forward operation being performed by a device, by detecting a start tag in the broadcast stream that is indicative of the start point of the first program segment;

responsive to detecting the start tag;

searching for an end tag, in the broadcast stream, that is associated with the start tag and is indicative of the end point of the first program segment;

identifying, by the device, the first program segment based on the start tag and the end tag.

40. The system of claim 39, wherein the steps further comprise replacing at least a portion of the first program segment with at least a portion of a second program segment during playback of the broadcast stream.

41. The system of claim 39, wherein the steps further comprise overwriting at least a portion of the first program segment stored in memory with at least a portion of a second program segment.

42. The system of claim 39, wherein the start tag comprises one or more of:

a unique indicator identifying the start tag or a tag type of the start tag.

43. The system of claim 39, wherein at least one of the start tag and end tag are located in closed caption data in the broadcast stream.

44. The system of claim 39, wherein at least one of the start tag and end tag are within a private data channel in the broadcast stream.

45. The system of claim 39, wherein the first program segment is replaced with a second program segment that is selected based on one or more of:

locale of a device playing the broadcast stream, the time of day, a viewer'"'"'s viewing habits, the viewer'"'"'s program preferences, or the viewer'"'"'s personal information.