Claims
- 1. A holographic data storage device including:
holographic media for containing data, writing data to and reading data from; at least one supplemental memory for containing at least a first portion of a directory of the data contained in the holographic media.
- 2. The device of claim 1 wherein a second portion of the directory of the data contained on the holographic media is included on the holographic media.
- 3. The device of claim 2 wherein the first portion of the directory includes pointers to holographic media map information on the holographic media.
- 4. The device of claim 1 wherein the first portion of the directory includes holographic media map information.
- 5. The device of claim 1 wherein the first portion of the directory contains security information.
- 6. The device of claim 1 wherein the first portion of the directory contains identification information for the holographic media.
- 7. The device of claim 1 wherein the supplemental memory includes an EEPROM.
- 8. The device of claim 7 wherein the supplemental memory may be wirelessly accessed.
- 9. The device of claim 8 wherein the supplemental memory may be accessed via radio frequency signals.
- 10. The device of claim 7 wherein the supplemental memory is accessed via electrical contacts.
- 11. The device of claim 1 wherein both the holographic media and the supplemental memory are included in a cartridge.
- 12. The device of claim 11 including a holographic disk drive having a supplemental memory reader/writer, wherein the supplemental memory may be accessed by the supplemental memory reader/writer.
- 13. The device of claim 11 wherein the supplemental memory may be wirelessly accessed by the supplemental memory reader/writer.
- 14. The device of claim 13 wherein the supplemental memory may be accessed by radio frequency signals.
- 15. The device of claim 11 including a hand-held supplemental memory reader/writer wherein the supplemental memory may be accessed by the hand-held supplemental memory reader/writer.
- 16. The device of claim 11 including a plurality of holographic storage cartridges stored in a jukebox including a supplemental memory reader/writer wherein each of the plurality of holographic storage cartridges includes a supplemental memory which may be read by the supplemental memory reader/writer.
- 17. A method of managing the contents of a holographic storage device including:
storing data in a holographic media; storing at least a first portion of a directory for the data in the holographic media in a supplemental memory located adjacent to the holographic media.
- 18. The method of claim 17 wherein both the holographic media and the supplemental memory are included in a housing.
- 19. The method of claim 17 including writing new data to the holographic media including:
reading directory information from the supplemental memory; using the directory information to identify un-written to area on the holographic media; writing the new data to at least a portion of the un-written area on the holographic media; and updating at least the first portion of the directory on the supplemental memory with directory information about the new data.
- 20. The method of claim 17 including reading requested data from the holographic media including:
reading directory information from the supplemental memory; using the directory information to identify un-written to area on the holographic media; using the directory information to determine the location of the requested data on the holographic media; and reading the requested data from the holographic media.
- 21. The method of claim 20 further including determining if a received request is to read an area of the holographic media not written to and, a received request is to read an area of the holographic media not written to, not carrying out the received request.
- 22. The method claim 17 including accessing the supplemental memory with a supplemental memory reader/writer.
- 23. The method of claim 22 wherein accessing the supplemental memory includes accessing the supplemental memory via electrical contacts.
- 24. The method of claim 22 wherein accessing the supplemental memory includes wirelessly accessing the supplemental memory.
- 25. The method of claim 22 wherein accessing the supplemental memory includes accessing the supplemental memory using radio frequency signals.
- 26. The method of claim 22 wherein the holographic media and supplemental memory are included in a cartridge.
- 27. The method of claim 26 wherein the supplemental memory reader/writer is contained in a holographic disk drive.
- 28. The method of claim 26 wherein the supplemental memory reader/writer is contained in a hand-held unit.
- 29. The method of claim 28 wherein the first portion of the directory includes identification information for the holographic media.
- 30. The method of claim 29 further including:
storing a plurality of holographic storage cartridges in a warehouse, each holographic storage cartridge including holographic media and supplemental memory; and including at least one keyword in the identification information; reading the keyword from at least one of the plurality of holographic storage cartridges using the handheld reader.
- 31. The method of claim 17 wherein:
the cartridge is stored in a jukebox along with a plurality of other cartridges each cartridge having holographic media and a supplemental memory including a directory of data stored in the holographic media; and the supplemental memory reader/writer is included in the jukebox.
- 32. The method of claim 17 wherein a second portion of the directory in the holographic media.
- 33. The method of claim 32 wherein:
at least a holographic media map is stored in the second portion of the directory; and at least pointers to the holographic media map are stored in the first portion of the directory.
- 34. The method of claim 17 with first portion of the directory includes a holographic media map.
- 35. The method of claim 17 wherein the first portion of the directory includes security information.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. provisional patent application serial no. 60/440,862 files Jan. 15, 2003, which is hereby incorporated by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60440862 |
Jan 2003 |
US |