Content distribution system, content providing medium production method, content acquisition apparatus, and content aquisition method

• US 20060227671A1
• Filed: 03/30/2006
• Published: 10/12/2006
• Est. Priority Date: 04/11/2005
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Teraoka, Yoshiyuki, Tobita, Minoru
• Application Number:
  US11/392,690
• Publication Number:
  US 20060227671A1
• Time in Patent Office: Days
• US Class Current: 369/30.10
• CPC Class Codes: G03H 1/0272 Substrate bearing the hologram
• CPC Class Codes: G03H 1/26 Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
• CPC Class Codes: G03H 1/265 Angle multiplexing; Multichannel holograms G03H1/268 takes precedence
• CPC Class Codes: G03H 2001/2695 Dedicated printer holographic printers G03H1/0476
• CPC Class Codes: G03H 2210/22 2D SLM object wherein the object beam is formed of the light modulated by the SLM SLM per se G03H2001/0224
• CPC Class Codes: G03H 2222/55 Astigmatic beam having different focal planes anamorphic optical element G03H2223/21
• CPC Class Codes: G03H 2223/21 Anamorphic optical element, e.g. cylindrical astigmatic beam G03H2222/55
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 2220/2504 Holographic discs; Holographic digital data storage [HDDS]
• CPC Class Codes: G11B 2220/652 said memory being attached to the recording medium
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 7/0065 Recording, reproducing or erasing by using optical interference patterns, e.g. holograms
• CPC Class Codes: G11C 13/042 using information stored in the form of interference pattern

Abstract

A system is disclosed wherein a content is distributed without using a network. The distributed content is acquired and reproduced by a content acquisition apparatus.

Claims

1. A content distribution system, comprising:

a content providing medium having a hologram memory in which content data is recorded as distribution data; and

an acquisition apparatus for reading out and acquiring the distribution data from said hologram memory provided on said content providing medium.

2. The content distribution system according to claim 1, further comprising

a use permission distribution apparatus for distributing, where user permission is required for the use of the content data to be distributed, use permission of the content data,

said acquisition apparatus including a connection section for connecting said acquisition apparatus to said use permission distribution apparatus such that said acquisition apparatus acquires the use permission of the content to be reproduced from said use permission distribution apparatus before the content is reproduced.

3. The content distribution system according to claim 1, wherein said hologram memory provided on said content providing medium has recorded thereon not only the content data but also image data which can be recognized by a visual sensation of a human being in a state wherein the image data is recorded in said hologram memory.

4. The content distribution system according to claim 3, wherein said acquisition apparatus acquires only the content data when reading out of the data is performed from said hologram memory in which the content data and the image data are recorded.

5. A content providing medium production method, comprising the steps of:

converting content data into hologram master data;

producing a master recording medium using the hologram master data; and

producing providing medium, for duplicating a hologram memory from the master recording medium and providing a predetermined content providing medium with the fabricated hologram memory.

6. The content providing medium production method according to claim 5, wherein, at the data conversion step, content data in a compressed form are converted into the hologram master data.

7. The content providing medium production method according to claim 5, wherein, at the data conversion step, content data in an encrypted form are converted into the hologram master data.

8. The content providing medium production method according to claim 5, wherein, at the data conversion step, not only content data as an object of downloading but also image data which is an object of visual recognition and has the substance which can be recognized by the human being on said hologram memory are converted into the hologram master data.

9. The content providing medium production method according to claim 5, wherein the content providing medium is a paper medium.

10. A content acquisition apparatus for acquiring content data from a content providing medium having a hologram memory in which the content data is recorded as distribution data, comprising:

reference light outputting means for outputting reading out reference light to said hologram memory on the content recording medium;

detection means for detecting, in a state wherein the reading out reference light is applied to said hologram memory by said reference light outputting means, a reproduction image based on data recorded in said hologram memory; and

reproduction processing means for reproducing a data string as the content data from the reproduction image detected by said detection means.

11. The content acquisition apparatus according to claim 10, further comprising recording means for a secondary recording medium, said recording means recording the content data reproduced by said reproduction processing means on the secondary recording medium.

12. The content acquisition apparatus according to claim 11, further comprising reproduction outputting means for reproducing and outputting content data, said reproduction outputting means reproducing and outputting the content data recorded on the secondary recording medium.

13. The content acquisition apparatus according to claim 12, wherein the reproduction and outputting of the content data by said reproduction outputting means is executed in accordance with use permission information inputted thereto.

14. The content acquisition apparatus according to claim 10, further comprising

transmission means for transmitting content data to an external equipment, said transmission means transmitting the content data reproduced by said reproduction processing means to an external equipment.

15. The content acquisition apparatus according to claim 14, wherein the transmission of the content data by said transmission means is executed in accordance with use permission information inputted thereto.

16. The content acquisition apparatus according to claim 10, further comprising

decryption means for performing a decryption process for content data which is in an encrypted form.

17. The content acquisition apparatus according to claim 16, wherein the decryption process by said decryption means is executed using use permission information.

18. A content acquisition method for acquiring content data from a content providing medium having a hologram memory in which the content data is recorded as distribution data, comprising the steps of:

detecting, in a state wherein reading out reference light is applied to said hologram memory on said content providing medium, a reproduction image of data recorded in said hologram memory; and

reproducing a data string as the content data from the reproduction image detected at the detection step.

19. A content acquisition apparatus for acquiring content data from a content providing medium having a hologram memory in which the content data is recorded as distribution data, comprising:

a reference light outputting section for outputting reading out reference light to said hologram memory on the content recording medium;

a detection section for detecting, in a state wherein the reading out reference light is applied to said hologram memory by said reference light outputting section, a reproduction image based on data recorded in said hologram memory; and

a reproduction processing section for reproducing a data string as the content data from the reproduction image detected by said detection section.