Information service control point, which uses different types of storage devices, which retrieves information as blocks of data, and which uses a trunk processor for transmitting information

• US 5,581,479 A
• Filed: 10/15/1993
• Issued: 12/03/1996
• Est. Priority Date: 10/15/1993
• Status: Expired due to Term

• Current Assignee: Lot 20 Acquisition Foundation, LLC, Pragmatus VOD LLC (Pragmatus, LLC)
• Original Assignee: Image Telecommunications Corporation
• Inventors: McLaughlin, Robert, Bullen, M. James
• Primary Examiner(s): Voeltz, Emmanuel T.
• Assistant Examiner(s): Shah, Kamini S.
• Application Number:
  US08/136,185
• Time in Patent Office: 1,145 Days
• Field of Search: 348/7, 348/12, 348/13, 348/484, 370/85.5, 379/89, 379/90, 379/105, 455/5.1, 455/6.3, 455/6.1, 359/118, 345/4.2, 345/5.1, 364/514
• US Class Current: 725/145
• CPC Class Codes: H04N 7/08 Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band , e.g. by time division H04N7/007 takes precedence
• CPC Class Codes: H04N 7/10 Adaptations for transmission by electrical cable H04N7/12 takes precedence
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends

Abstract

Various methods and associated apparatuses are provided for communicating data from a central station to a remote station over some form of communications path. The data, which together form at least one title, are stored on at least one storage device. The data forming that title are then retrieved as data blocks from storage. Each data block is a sequential segment of the data. Finally, the retrieved data blocks are transmitted from the central station to the remote station. According to preferred embodiments, two types of storage devices are provided. The first type, preferably formed as an array of playback units, allows the data to be stored as data blocks and distributed accordingly over a plurality of storage devices. The second type, preferably formed as ring structures composed of solid state elements, provides a plurality of access points coupled to the storage medium, each of which is able to retrieve the data independently of other access points. For further versatility in the system, the data blocks can also be transmitted independently of one another from the central station. Preferably, the step of retrieving the data is performed in response to receiving a request for a given title. The various systems disclosed allow a wide assortment of titles (e.g., movies, educational-, entertainment-, consumer-, and business-related information, and any information that can be converted into a stream of data) to be transmitted to a wide audience with great flexibility and minimal contention between users for the titles offered.

Claims

1. A method of communicating data, the data together forming a title in an interactive services information database, from a central station configured to administrate the information database to a remote station over a communications path, said method comprising the steps of:

storing the data in the information database as a plurality of data blocks over a plurality of storage devices, each data block being a sequential segment of the data;

retrieving the stored data blocks from the plurality of storage devices as retrieved data blocks; and

transmitting the retrieved data blocks from the central station to the remote station;

wherein said transmitting step comprises;

locating and seizing an available communications trunk; and

supplying the retrieved data blocks to the remote station via the available communications trunk and an associated communications path linking the available communications trunk and the remote station.

2. The method according to claim 1, wherein the stored data blocks are sequentially retrieved in said retrieving step.

3. The method according to claim 1, wherein the retrieved data blocks are transmitted sequentially in said transmitting step.

4. The method according to claim 1, wherein said storing step comprises a step of distributing the plurality of data blocks over m storage devices, where m>

2.

5. The method according to claim 1, further comprising a step of queuing the retrieved data blocks in a predetermined sequence prior to performing said transmitting step.

6. The method according to claim 1, wherein the stored data blocks are retrieved via a plurality of access points in said retrieving step.

7. The method according to claim 1, wherein said storing step comprises storing the data blocks independent of one another on playback units, each of which has at least one reading head.

8. The method according to claim 1, wherein

said locating and seizing step comprises locating and seizing at least one additional communications trunk;

and

said supplying step comprises copying the retrieved data blocks, and supplying the copied data blocks to a further remote station via the additional communications trunk and an additional communications path linking the additional communications trunk and the further remote station.

9. The method according to claim 1,

further comprising receiving a request for the title;

and

wherein said retrieving step is performed in response to said receiving step.

10. The method according to claim 1, wherein each data block is retrieved independently of other data blocks in said retrieving step.

11. The method according to claim 1, wherein, in said retrieving step, the stored data blocks are retrieved in real time.

12. The method according to claim 1, wherein, in said transmitting step, the retrieved data blocks are transmitted in real time.

13. The method according to claim 1, wherein each of the plurality of storage devices additionally stores data blocks that are sequential segments of additional titles.

14. The method according to claim 6, wherein said storing step further comprises a step of distributing the plurality of data blocks over a plurality of storage devices such that no single one of the access points retrieves more than a single one of the data blocks in said retrieving step.

15. The method according to claim 7, wherein said retrieving step comprises a step of assembling the retrieved data blocks in a predetermined sequence.

40. The method according to claim 1, wherein the interactive services information comprises audio-visual information.

41. The method according to claim 40, wherein the audio-visual information comprises movies.

42. The method according to claim 1, wherein the interactive services information comprises audio information.

43. The method according to claim 1, wherein the interactive services information comprises video information.

45. The method according to claim 40, wherein the audio-visual information comprises television programming.

46. The method according to claim 40, wherein the audio-visual information comprises videogame programming.

47. The method according to claim 42, wherein the audio information comprises music.

48. The method according to claim 43, wherein the video information comprises online text information.

16. A method of communicating data, the data together forming a title in an interactive services information database, from a central station configured to administrate the information database to a remote station over a communications path, said method comprising the steps of:

storing the data in the information database as a plurality of data blocks over a plurality of storage devices, each data block being a sequential segment of the data;

retrieving the stored data blocks from the plurality of storage devices as retrieved data blocks; and

transmitting the retrieved data blocks from the central station to the remote station;

wherein said storing step comprises storing the data blocks independent of one another on playback units, each of which has at least one reading head;

wherein said retrieving step comprises a step of assembling the retrieved data blocks in a predetermined sequence; and

wherein said assembling step comprises;

performing an inventory of the retrieved data blocks, which together form the title; and

queuing the retrieved data blocks into a playback sequence.

17. The method according to claim 16, wherein said queuing step comprises constructing a playing table.

18. A method of communicating data, the data together forming a title in an interactive services information database, from a central station configured to administrate the information database to a first and a second remote station over a communications path, said method comprising the steps of:

storing the data in the information database as a plurality of data blocks over a plurality of storage devices, each data block being a sequential segment of the data;

retrieving the stored data blocks from the plurality of storage devices as retrieved data blocks; and

transmitting the retrieved data blocks from the central station to the first and the second remote station;

wherein the stored data blocks define respective block units of time;

wherein said retrieving step comprises retrieving the stored data blocks a first time and subsequently retrieving the stored data blocks a second time, such that said second retrieving is staggered in time from said first retrieving by at least one of the block units of time; and

wherein said transmitting step comprises;

locating and seizing a first and a second available communications trunk;

supplying the retrieved data blocks to the first remote station via the first available communications trunk and an associated communications path linking the first available communications trunk and the first remote station; and

supplying the retrieved data blocks to the second remote station via the second available communications trunk and an associated communications path linking the second available communications trunk and the second remote station.

19. The method according to claim 18, wherein

said second remote station is remote from both the central station and the first remote station.

20. A method of communicating data, the data together forming a title in an interactive services information database, from a central station configured to administrate the information database to a remote station over a communications path, said method comprising the steps of:

storing the data in the information database on at least one storage device;

retrieving the stored data, which together form the title, as a sequence of data blocks, each data block being a segment of the stored data; and

transmitting the retrieved data blocks from the central station to the remote station;

wherein said storing step comprises circulating the stored data at a predetermined clock rate in at least one data storage ring; and

wherein said retrieving step comprises;

ascertaining a current location in the data storage ring of a predetermined one of the data blocks;

determining at least one read port from among a plurality of access points distributed throughout the data storage ring, wherein said determination is based on the current location ascertained; and

actuating the at least one read port to read at least a portion of the stored data, commencing with the predetermined one of the data blocks.

21. The method according to claim 20, wherein said storing step further comprises regenerating the circulating data at predetermined intervals.

22. The method according to claim 20, wherein the interactive services information comprises audio-visual information.

23. The method according to claim 20, wherein the interactive services information comprises audio information.

24. The method according to claim 20, wherein the interactive services information comprises video information.

25. The method according to claim 22, wherein the audio-visual information comprises movies.

26. The method according to claim 22, wherein the audio-visual information comprises television programming.

27. The method according to claim 22, wherein the audio-visual information comprises videogame programming.

28. The method according to claim 23, wherein the audio information comprises music.

29. The method according to claim 24, wherein the video information comprises online text information.

30. A method of communicating data, the data together forming a title in an interactive services information database, from a central station configured to administrate the information database to a remote station over a communications path, said method comprising the steps of:

storing the data in the information database on at least one storage device;

retrieving the stored data, which together form the title, as a sequence of data blocks, each data block being a segment of the stored data; and

transmitting the retrieved data blocks from the central station to the remote station;

wherein said storing step comprises circulating the stored data at a predetermined clock rate in at least one data storage ring; and

wherein said retrieving step comprises;

ascertaining a current location in the data storage ring of an initial data block, the initial data block corresponding to a starting point of the title;

determining a read port from among a plurality of access points distributed throughout the data storage ring, wherein said determination is based on the current location ascertained; and

actuating the read port to read the stored data sequentially, commencing with the initial data block.

31. A method of communicating data from a central station configured to administrate an interactive services information database, wherein the data are composed of at least

first title data together forming a first title in the information database and

second title data together forming a second title in the information database,

said method comprising the steps of:

storing the first title data and the second title data in the information database as a plurality of first title data blocks and a plurality of second title data blocks, respectively, on at least two storage devices, wherein each data block is a sequential segment of either the first title data or the second title data, and wherein each of the storage devices stores at least a portion of the first title data blocks and a portion of the second title data blocks;

retrieving the stored first title data blocks as retrieved first title data blocks;

transmitting the retrieved first title data blocks from the central station;

retrieving the stored second title data blocks as retrieved second title data blocks; and

transmitting the retrieved second title data blocks from the central station;

wherein said retrieving steps comprise;

ascertaining current locations in the data storage devices of predetermined ones of the first title data blocks and the second title data blocks;

determining at least two read ports from among a plurality of access points distributed throughout the data storage devices, wherein said determination is based on the current locations ascertained; and

actuating the at least two read ports to read at least portions of the first title data and the second title data, commencing with the predetermined ones of the first title data blocks and the second title data blocks, respectively.

32. The method according to claim 31, wherein, in said retrieving steps, retrieval of any given one of the stored first title data blocks is independent of retrieval of a given one of the stored second title data blocks that corresponds to the given one of the stored first title data blocks.

33. The method according to claim 31, wherein the stored first title data blocks are sequentially retrieved in said first retrieving step and the stored second title data blocks are sequentially retrieved in said second retrieving step.

34. The method according to claim 31, wherein the retrieved first title data blocks are transmitted sequentially in said first transmitting step and the retrieved second title data blocks are transmitted sequentially in said second transmitting step.

35. The method according to claim 31, wherein

said transmitting steps comprise transmitting the retrieved first title data blocks from the central station to a first remote station, and transmitting the retrieved second title data blocks from the central station to a second remote station.

36. The method according to claim 31, wherein said storing step comprises distributing the plurality of first title data blocks and the plurality of second title data blocks over m storage devices, where m>

2.

37. The method according to claim 31, further comprising the steps of:

queuing the retrieved first title data blocks in a first predetermined sequence prior to performing said first transmitting step; and

queuing the retrieved second title data blocks in a second predetermined sequence prior to performing said second transmitting step.

38. The method according to claim 31, wherein, in said retrieving steps, retrieval of any given one of the stored first title data blocks is independent of retrieval of all others of the stored first title data blocks, and retrieval of any given one of the stored second title data blocks is independent of retrieval of all others of the stored second title data blocks.

39. The method according to claim 31, wherein the retrieved first title data blocks and second title data blocks are independently transmitted from the central station to the remote station.

44. The method according to claim 36, wherein said retrieving steps comprise the steps of assembling the retrieved first title data blocks in a first predetermined sequence and assembling the retrieved second title data blocks in a second predetermined sequence.

49. A method of communicating data from a central station configured to administrate an interactive services information database, wherein the data are composed of at least

first title data together forming a first title in the information database and

second title data together forming a second title in the information database,

said method comprising the steps of:

storing the first title data and the second title data in the information database as a plurality of first title data blocks and a plurality of second title data blocks, respectively, on at least two storage devices, wherein each data block is a sequential segment of either the first title data or the second title data, and wherein each of the storage devices stores at least a portion of the first title data blocks and a portion of the second title data blocks;

retrieving the stored first title data blocks as retrieved first title data blocks;

transmitting the retrieved first title data blocks from the central station;

retrieving the stored second title data blocks as retrieved second title data blocks; and

transmitting the retrieved second title data blocks from the central station;

wherein said transmitting steps comprise;

locating and seizing at least a first available communications trunk and a second available communications trunk;

supplying the retrieved first title data blocks to a first remote station via the first available communications trunk and an associated communications path linking the first available communications trunk and the first remote station; and

supplying the retrieved second title data blocks to a second remote station via the second available communications trunk and an associated communications path linking the second available communications trunk and the second remote station.

50. The method according to claim 49, wherein

said locating and seizing step comprises locating and seizing at least one additional communications trunk;

and

said first supplying step comprises copying the retrieved first title data blocks, and supplying the copied data blocks to a further remote station via the additional communications trunk and an additional communications path linking the additional communications trunk and the further remote station.

51. The method according to claim 50, wherein

said locating step comprises locating and seizing at least another additional communications trunk;

and

said second supplying step comprises copying the retrieved second title data blocks, and supplying the copied second title data blocks to yet another remote station via the another additional communications trunk and another additional communications path linking the another additional communications trunk and the yet another remote station.

52. A method of communicating data from a central station configured to administrate an interactive services information database, wherein the data are composed of at least

first title data together forming a first title in the information database and

second title data together forming a second title in the information database,

said method comprising the steps of:

storing the first title data and the second title data in the information database as a plurality of first title data blocks and a plurality of second title data blocks, respectively, on at least two storage devices, wherein each data block is a sequential segment of either the first title data or the second title data, and wherein each of the storage devices stores at least a portion of the first title data blocks and a portion of the second title data blocks;

retrieving the stored first title data blocks as retrieved first title data blocks;

transmitting the retrieved first title data blocks from the central station;

retrieving the stored second title data blocks as retrieved second title data blocks; and

transmitting the retrieved second title data blocks from the central station;

wherein said storing step comprises distributing the plurality of first title data blocks and the plurality of second title data blocks over m storage devices, where m>

2;

wherein said retrieving steps comprise the steps of assembling the retrieved first title data blocks in a first predetermined sequence and assembling the retrieved second title data blocks in a second predetermined sequence; and

wherein each of said assembling steps comprises;

performing an inventory of the retrieved data blocks, which together form the respective title; and

queuing the retrieved respective data blocks into a playback sequence.

53. The method according to claim 52, wherein said queuing step in each of said assembling steps comprises constructing a respective playing table.

54. A method of communicating data from a central station configured to administrate an interactive services information database, wherein the data are composed of at least

first title data together forming a first title in the information database and

second title data together forming a second title in the information database,

said method comprising the steps of:

storing the first title data and the second title data in the information database as a plurality of first title data blocks and a plurality of second title data blocks, respectively, on at least two storage devices, wherein each data block is a sequential segment of either the first title data or the second title data, and wherein each of the storage devices stores at least a portion of the first title data blocks and a portion of the second title data blocks;

retrieving the stored first title data blocks as retrieved first title data blocks;

transmitting the retrieved first title data blocks from the central station;

retrieving the stored second title data blocks as retrieved second title data blocks; and

transmitting the retrieved second title data blocks from the central station;

wherein said retrieving steps comprise;

ascertaining current locations in the data storage devices of first and second initial data blocks of said first title and said second title, respectively, the first and second initial data blocks corresponding to respective starting points of the first and second titles;

determining first and second read ports from among a plurality of access points distributed throughout the data storage devices, wherein said determination is based on the current locations ascertained; and

actuating the first and second read ports to read, respectively, the stored first title data blocks sequentially and the stored second title data blocks sequentially, commencing with the first and second initial data blocks, respectively.

55. A system for communicating data, the data together forming at least two titles in an interactive services information database, from a central station configured to administrate the information database, said system comprising:

storage means in the information database for storing the data, said storage means comprising

a first category of primary storage devices comprising solid state memories for storing at least one of the titles; and

a second category of primary storage devices comprising playback units for storing at least another of the titles;

retrieving means operatively connected to said storage means for retrieving the data, said retrieving means comprising

a first category of output devices for retrieving data stored on said first category of primary storage devices; and

a second category of output devices for retrieving data stored on said second category of primary storage devices as blocks of sequential segments of data; and

a communications link operatively connected to said storage means and said retrieving means for transmitting the retrieved data from the central station.

56. The system according to claim 55, wherein each data block is retrieved independently of other data blocks from said second category of storage devices.

57. The system according to claim 55, wherein the interactive services information comprises audio-visual information.

58. The system according to claim 55, wherein the interactive services information comprises audio information.

59. The system according to claim 55, wherein the interactive services information comprises video information.

60. The system according to claim 59, wherein the audio-visual information comprises movies.

61. The system according to claim 57, wherein the audio-visual information comprises television programming.

62. The system according to claim 57, wherein the audio-visual information comprises videogame programming.

63. The system according to claim 58, wherein the audio information comprises music.

64. The system according to claim 59, wherein the video information comprises online text information.

65. A system for communicating data, the data together forming at least one title in an interactive services information database, from a central station configured to administrate the information database, said system comprising:

storage means in the information database for storing the data;

retrieving means operatively connected to said storage means for retrieving at least a portion of the stored data, the portion together forming at least one title;

a communications link operatively connected to said storage means and said retrieving means for transmitting the retrieved portion from the central station;

wherein said storage means comprises;

a plurality of shift registers interconnected in series to form a ring; and

a clock source connected to each of said shift registers for clocking said shift registers;

wherein the data are shifted from one of said shift registers to the next of said shift registers according to the clocking of said clock source, such that the data circulate continuously in said ring at a rate governed by said clock source; and

wherein said communications link comprises a trunk processor.

66. The system according to claim 65, wherein said retrieving means comprises:

a plurality of access ports each comprising an output for copying at least the portion of the data retrieved from said storage means.

67. The system according to claim 65, wherein said retrieving means comprises:

a plurality of access ports each connected to a predetermined one of said shift registers and each comprising an output for copying the data shifted to said predetermined one of said shift registers.

68. The system according to claim 65, wherein said storage means further comprises:

a plurality of data regenerators each connected to a predetermined one of said shift registers, wherein

each said regenerator receives the data from said predetermined one of said shift registers in sequence and regenerates the data received.

69. The system according to claim 65, wherein said shift registers are constructed of logic circuits.

70. The system according to claim 65, wherein said shift registers are constructed of charge-coupled devices, and

said storage means further comprises a plurality of regenerators, each regenerator being connected to said clock source and being coupled to an associated one of said charge-coupled devices.

71. The system according to claim 65, wherein said plurality of shift registers is interconnected in series and in parallel to form the ring.

72. The system according to claim 65, wherein

said plurality of shift registers interconnected in series form multiple parallel rings;

and

the data are shifted from one of said shift registers to the next of said shift registers according to the clocking of said clock source, such that the data circulate continuously in said multiple rings at a rate governed by said clock source.

73. The system according to claim 65, further comprising:

at least one remote station; and

at least one communications path operatively connected between said communications link and said remote station.

74. The system according to claim 65, further comprising:

a plurality of remote stations; and

a plurality of communications paths connecting respective remote stations with said communications link.

75. The system according to claim 65, further comprising

a further communications link operatively connected to said retrieving means for receiving a request for the title.

76. The system according to claim 66, wherein said plurality of access ports each further comprises an input, forming part of said storage means, for inputting the data into said storage means.

77. The system according to claim 67, wherein said plurality of access ports each further comprises an input, forming part of said storage means, for inserting the data into said ring.

78. The system according to claim 68, wherein said regenerators are each data checkers comprising a data decoder and a data encoder.

79. The system according to claim 73, wherein said communications path is selected from the group consisting of a land line and electromagnetic airwaves.

80. The system according to claim 73, wherein said communications path is selected from the group consisting of a telecommunications path, a cable television path, a digital cellular path, or a satellite transmissions path.

81. The system according to claim 75, wherein said further communications link is a trunk processor.

82. The system according to claim 75, wherein said communications link doubles as said further communications link.

83. A system for communicating data, the data together forming at least one title in an interactive services information database, from a central station configured to administrate the information database, said system comprising:

storage means in the information database for storing the data as a plurality of data blocks, wherein each data block is a sequential segment of the data;

retrieving means operatively connected to said storage means for retrieving the stored data blocks as retrieved data blocks; and

a communications link operatively connected to said storage means and said retrieving means for transmitting the retrieved data blocks from the central station;

wherein said communications link comprises a trunk processor.

84. The system according to claim 83, wherein said storage means comprises:

a plurality of playback units, each of which has at least one reading head.

85. The system according to claim 83, further comprising:

at least one remote station; and

at least one communications path operatively connected between said communications link and said remote station.

86. The system according to claim 83, further comprising

a further communications link operatively connected to said retrieving means for receiving a request for the title.

87. The system according to claim 84, wherein said playback units are selected from the group consisting of compact disk read only memories, laser disks, optical juke boxes, silos, digitally recorded tape, and magnetically recorded tape.

88. The system according to claim 84, wherein said retrieving means retrieves the stored data blocks from said plurality of playback units, and assembles the retrieved data blocks in a predetermined sequence.

89. The system according to claim 85, wherein said communications path is selected from the group consisting of a land line and electromagnetic airwaves.

90. The system according to claim 85, wherein said communications path is selected from the group consisting of a telecommunications path, a cable television path, a digital cellular path, or a satellite transmissions path.

91. The system according to claim 86, wherein said further communications link is a trunk processor.

92. The system according to claim 86, wherein said communications link doubles as said further communications link.

93. A system for communicating data, the data together forming at least two titles in an interactive services information database, from a central station configured to administrate the information database, said system comprising:

storage means in the information database for storing the data, said storage means comprising

a first category of storage devices, wherein each storage device in said first category is comprised of solid state memories and stores at least a major portion of at least one of the titles; and

a second category of storage devices comprising playback units for storing at least another of the titles as blocks of sequential segments of data;

retrieving means operatively connected to said storage means for retrieving the data forming at least one of the at least two titles; and

a communications link operatively connected to said storage means and said retrieving means for transmitting the retrieved data from the central station.

94. The system according to claim 93, wherein each said storage device in said first category stores at least one of the titles in its entirety.

95. The system according to claim 93, wherein each said storage device in said first category is a ring of said solid state memories that are serially connected.

96. The system according to claim 93, wherein said storage device stores the data in a sequence corresponding to a playback sequence of the data.

97. A video-on-demand service for selectively communicating video presentations upon request by subscribers, the video presentations categorized into popular titles and less popular titles, the system comprising:

(i) solid state memory rings for storing the popular titles as digitized data, each of said rings comprising;

solid state memory elements connected to form at least one closed loop of said memory elements,

a clock source supplying said memory elements with timing signals that control data circulation, and

a plurality of data output elements connected into the ring at predetermined intervals and responsive to a subscriber request for one of the popular titles; and

(ii) playback units for storing the less popular titles as blocks of sequential segments of data, said playback units being configured to play back the less popular titles in units defined by said blocks in response to a subscriber request for one of the less popular titles.