CA2667573A1 - Method and device for playback of digital media content - Google Patents

Method and device for playback of digital media content Download PDF

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Publication number
CA2667573A1
CA2667573A1 CA002667573A CA2667573A CA2667573A1 CA 2667573 A1 CA2667573 A1 CA 2667573A1 CA 002667573 A CA002667573 A CA 002667573A CA 2667573 A CA2667573 A CA 2667573A CA 2667573 A1 CA2667573 A1 CA 2667573A1
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Prior art keywords
media files
playback
media
files
category
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Granted
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CA002667573A
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French (fr)
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CA2667573C (en
Inventor
Bradley D. Kindig
Celite Milbrandt
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Slacker Inc
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Individual
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Priority claimed from PCT/US2007/082373 external-priority patent/WO2008052050A2/en
Publication of CA2667573A1 publication Critical patent/CA2667573A1/en
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/13—File access structures, e.g. distributed indices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
    • H04H20/106—Receiver-side switching
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G06F16/43—Querying
    • G06F16/435—Filtering based on additional data, e.g. user or group profiles
    • G06F16/436—Filtering based on additional data, e.g. user or group profiles using biological or physiological data of a human being, e.g. blood pressure, facial expression, gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • G06F16/43—Querying
    • G06F16/435—Filtering based on additional data, e.g. user or group profiles
    • G06F16/437—Administration of user profiles, e.g. generation, initialisation, adaptation, distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4826—End-user interface for program selection using recommendation lists, e.g. of programs or channels sorted out according to their score
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4828—End-user interface for program selection for searching program descriptors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/82—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
    • H04H60/83—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks
    • H04H60/85—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are mobile communication networks

Abstract

Systems and methods are disclosed for providing devices capable of the reception and playback of one or more crafted media channels transmitted over an intermittent connection. The one or more channels may be customized by the end user to bias the programming towards individual tastes or moods. The channels may be delivered over an intermittent, unidirectional link, for example a Satellite Radio receiver in a home or car. Content may also be delivered over an intermittent, bidirectional link, for example to a portable media player via a wireless 802.11 or other networked connection.

Claims (68)

1. A method for facilitating playback of media files through a device having access to a data link, the method comprising:
receiving, over the data link, media files and file metadata wherein the file metadata defines attributes of the media files;
storing, in a memory of the device, ones of the media files characterized by file metadata consistent with one or more channel profiles maintained within the memory of the device; and sequencing the ones of the media files for playback based upon one or more of the channel profiles.
2. The method of claim 1 further comprising discarding, based upon the file metadata associated with ones of the media files, those media files that are non-responsive to the one or more profiles; and categorizing the media files stored in the memory of the device into one or more categories and sequencing of media files for playback responsive to a sequencing of the categories.
3. The method of claim 2 where the ordering of the categories is specified by the channel profile.
4. The method of claim 2 where the ordering of the categories is dynamically determined by the device.
5. The method of claim 2 where the media files selected responsive to the category are selected responsive to the degree to which the attributes of the media file match the attributes targeted by the category.
6. The method of claim 5 wherein the media files selected responsive to the category are additionally selected responsive to the degree to which the attributes of the media files match one or more attribute biases specified by an end user.
7. The method of claim 5 wherein the media files selected responsive to the category are additionally responsive to repetition rules associated with the category.
8. The method of claim 7 wherein the repetition rule biases against more than x media files associated with a particular artist from being sequenced within a playback interval of y.
9. The method of claim 8 wherein y is specified in elapsed time.
10. The method of claim 8 wherein y is specified in elapsed time discounted by intervals that the device is not playing media files.
11. The method of claim 8 wherein y is specified in terms of the number of media files played.
12. The method of claim 7 wherein the repetition rule biases against more than x media files associated with a particular recordings collection from being sequenced within a playback interval of y.
13. The method of claim 12 wherein y is specified in elapsed time.
14. The method of claim 12 wherein y is specified in elapsed time discounted by intervals that the device is not playing media files.
15. The method of claim 12 wherein y is specified in terms of the number of media files played.
16. The method of claim 7 wherein the repetition rule biases against more than x media files associated with a particular recording from being sequenced within a playback interval of y.
17. The method of claim 16 wherein y is specified in actual elapsed time.
18. The method of claim 16 wherein y is specified in elapsed time discounted by intervals that the device is not playing media files.
19. The method of claim 16 wherein y is specified in terms of the number of media files played.
20. The method of claim 16 wherein the bias decays as the playback interval approaches Y.
21. The method of claim 20 wherein the bias decays exponentially according to the equation N(t) = N 0 e -.lambda.t where t represents the interval, N0 represents the maximum bias, and .lambda. represents the rate of decay.
22. The method of claim 21 wherein N0 and .lambda. are chosen responsive to a target bias N(t') where t' represents the minimal acceptable interval.
23. The method of claim 6 wherein at least one of the attributes used to bias selection represents the popularity of the content of the media file
24. The method of claim 6 wherein at least one of the attributes used to bias selection represents the preference of the user for the content of the media file.
25. The method of claim 6 wherein at least one of the attributes used to bias selection represents an intensity metric of the content of the media file.
26. The method of claim 6 wherein at least one of the attributes used to bias selection represents a tempo metric of the content of the media file.
27. The method of claim 6 wherein at least one of the attributes used to bias selection represents an age metric of the content of the media file.
28. The method of claim 6 wherein at least one of the attributes used to bias selection is re-scaled according to a channel specific scaling function.
29. The method of claim 28 wherein the scaling function is parameterized by a channel specific value of the attribute that maps to a neutral bias.
30. The method of claim 29 wherein the scaling function is additionally parameterized by the values of the attribute mapping onto highly positive and highly negative bias.
31. The method of claim 30 wherein the scaling function is of the form V' = b-e -.lambda.v where b represents the maximum bias and .lambda.
represents the rate of decay of that bias from high to neutral, and v represents the attribute value being scaled.
32. The method of claim 1 wherein sequencing for playback is responsive to user preferences.
33. The method of claim 32 wherein the user preferences include identifying the content of a media file as a favorite.
34. The method of claim 32 wherein the user preferences include associating a rating with the content of the media files.
35. The method of claim 32 wherein the user preferences include a setting to exclude the content of the media file from playback.
36. The method of claim 32 wherein the user preferences include a setting to exclude content associated with one or more excluding attributes of the content.
37. The method of claim 36 wherein an excluding attribute is an artist associated with the content.
38. The method of claim 1 wherein the decision to store or discard a track is responsive to one or more user preferences.
39. The method of claim 38 wherein the user preferences include identifying the content of a media file as a favorite.
40. The method of claim 38 wherein the user preferences include associating a rating with the content of the media files.
41. The method of claim 38 wherein the user preferences include a setting to exclude the content of the media file from playback.
42. The method of claim 38 wherein the user preferences include a setting to exclude content associated with one or more excluding attributes of the content.
43. The method of claim 38 wherein an excluding attribute is an artist associated with the content.
44. The method of claim 1 wherein the amount of storage devoted to the local files associated with a channel is allocated responsive to the characteristics of the channel.
45. The method of claim 5 wherein the amount of storage devoted to the local files associated with a channel is allocated responsive to the characteristics of the categories associated with the channel.
46. The method of claim 45 wherein the storage devoted to the local files associated with a category is fixed.
47. The method of claim 45 wherein the storage devoted to the local files associated with a category is fixed by means of a maximum number of associated files.
48. The method of claim 46 wherein the local files associated with a category in excess of the allocation of the category are removed from the device.
49. The method of claim 46 wherein the local files associated with a category in excess of the allocation of the category are assigned to a different category.
50. The method of claim 44 wherein the amount of storage devoted to the local files associated with a channel is allocated responsive to the anticipated share of device playback usage attributed to the channel.
51. The method of claim 44 wherein the amount of storage devoted to the local files associated with a category is allocated responsive to the characteristics of the category defining the rate at which content in the category may be repeated in playback sequencing.
52. The method of claim 44 wherein files in excess of the allocation are selected for removal responsive to the inverse of their anticipated order of playback by the device.
53. The method of claim 44 wherein files in excess of the allocation are selected for removal responsive to their quality of fit to the characteristics of the channel.
54. The method of claim 44 wherein files in excess of the allocation are selected for removal responsive to their recency of playback.
55. The method of claim 45 wherein files in excess of the allocation for the category are selected for removal responsive to the inverse of their anticipated order of playback by the device.
56. The method of claim 45 wherein files in excess of the allocation for the category are selected for removal responsive to their quality of fit to the characteristics of the category.
57. The method of claim 45 wherein files in excess of the allocation for the category are selected for removal responsive to their recency of playback.
58. A digital media playback device, comprising:
a receiver capable of receiving, over a data link, media files and file metadata defining attributes of the media files;
memory in which are stored ones of the media files characterized by file metadata consistent with one or more channel profiles; and a processor operatively coupled to the memory, wherein the processor executes instructions stored in the memory to:
automatically store certain of the ones of the media files stored within the memory, automatically delete certain of the ones of the media files stored within the memory, and automatically sequence the ones of the media files stored within the memory for playback based upon one or more of the channel profiles.
59. The device as in claim 58 wherein the removal of the media files is triggered by a storage utilization profile of the device reaching pre-configured thresholds.
60. The device as in claim 59 wherein the process of removal of the media files seeks to achieve the configured target storage utilization.
61. The device of claim 58 wherein the media files removed are responsive to the inverse of the anticipated playback order of all of the media files on the device.
62. The device of claim 58 wherein the media files removed are responsive to the anticipated percent of total device playback allocated to the channel or category associated with the media files.
63. The device of claim 62 wherein the anticipated playback of a channel or category is adapted based on observations of actual content playback.
64. The device of claim 63 wherein the share of anticipated playback (termed the "duty cycle") is calculated using an adaptation is of the form c t+1 = (O t+1-c t ) .lambda. + c t where c t+1, is the adapted duty cycle at time t+l, o t+1, is the observed duty cycle at time t+1 and c t is the adapted duty cycle at time t.
65. The device of claim 63 wherein the files to be removed from the device are responsive to the formula: score = (r - 0.5) /(c station ~c bucket ) where r is the rank of the media file within the category, c station is the anticipated duty cycle of the channel, and c bucket is the anticipated duty cycle of the category within the channel.
66. A digital media playback device, comprising:
a transceiver configured to send, over a data link, one or more channel profiles to a remote computer having access to the data link and to receive, over the data link, media files and file metadata based upon the channel profiles;
a memory; and a processor operatively coupled to the memory, wherein the processor executes instructions stored in the memory to:
automatically store within the memory ones of the media files consistent with certain ones of the channel profiles, automatically delete certain of the ones of the media files stored within the memory, and automatically sequence the ones of the media files stored within the memory for playback based upon a selected one of the channel profiles.
67. A computer readable media including instructions for execution on a processor in a digital media player device, comprising instructions to:
receive at the device, over a data link, media files and file metadata, wherein the file metadata defines attributes of the media files;

store, in a memory of the device, ones of the media files characterized by file metadata consistent with one or more channel profiles maintained within the memory of the device; and sequence the ones of the media files for playback based upon one or more of the channel profiles.
68. A system for providing content for playback comprising:
a plurality of devices configured to receive media files over a network connection;
and a content management system configured to provide said media files and metadata relating to a plurality of characteristics of said media files to said plurality of devices, wherein said plurality of devices are disposed to render said media based at least in part on a set of user specific criteria in conjunction with a set of content specific criteria.
CA2667573A 2006-10-24 2007-10-24 Method and device for playback of digital media content Active CA2667573C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US86273606P 2006-10-24 2006-10-24
US60/862,736 2006-10-24
US88628307P 2007-01-23 2007-01-23
US60/886,283 2007-01-23
PCT/US2007/082373 WO2008052050A2 (en) 2006-10-24 2007-10-24 Method and device for playback of digital media content

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CA2667573A1 true CA2667573A1 (en) 2008-05-02
CA2667573C CA2667573C (en) 2018-10-23

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US (4) US20080162570A1 (en)
EP (1) EP2080114A4 (en)
CA (1) CA2667573C (en)

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US20080215645A1 (en) 2008-09-04
US20080162570A1 (en) 2008-07-03
US8849820B1 (en) 2014-09-30

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