Systems and methods for storing data on an optical disk

• US 20050037285A1
• Filed: 08/11/2003
• Published: 02/17/2005
• Est. Priority Date: 08/11/2003
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Van Brocklin, Andrew L., Gore, Makarand P., Dorsh, Cari
• Granted Patent: US 7,125,644 B2
• Time in Patent Office: Days
• US Class Current: 430/270.110
• CPC Class Codes: G11B 23/0021 discs
• CPC Class Codes: G11B 23/42 Marks for indexing, speed-controlling, synchronising, or timing
• CPC Class Codes: G11B 7/0037 with discs
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082
• CPC Class Codes: Y10S 430/146 Laser beam
• CPC Class Codes: Y10T 428/21 Circular sheet or circular blank

Abstract

Disclosed herein are optical disks wherein data is written with dye that is invisible to the naked eye.

Claims

1. An optical disk comprising:

data written with a dye that is invisible to the naked eye.

2. The optical disk of claim 1 wherein the data is written on a rim of the optical disk.

3. The optical disk of claim 1 wherein the dye is screen printed onto at least one side of the disk.

4. The optical disk of claim 1 wherein the optical disk comprises a portion suitable for writing visible data and wherein the invisible dye is not printed on the portion suitable for writing visible data.

5. The optical disk of claim 1 wherein the optical disk comprises a portion suitable for writing visible data and wherein the invisible dye is printed on the portion suitable for writing visible data.

6. The optical disk of claim 1 wherein the data is control data.

7. The optical disk of claim 1 wherein the dye is selected from the group consisting of the following compounds:

8. A method for writing data onto an optical disk, the method comprising:

writing data onto an optical disk with a dye that can not be viewed by an unaided human eye.

9. The method of claim 8 wherein the data is written on a rim of the optical disk.

10. The method of claim 8 wherein the dye is screen printed onto at least one side of the disk.

11. The method of claim 8 wherein the optical disk comprises a portion suitable for writing visible data and wherein the dye is not printed on the portion suitable for writing visible data.

12. The method of claim 8 wherein the optical disk comprises a portion suitable for writing visible data and wherein the dye is printed on the portion suitable for writing visible data.

13. The method of claim 8 wherein the data is control data.

14. The method of claim 8 wherein the dye is selected from the group consisting of the following compounds:

15. A means for storing data on an optical disk, the means comprising:

means for affixing a dye to an optical disk, wherein the affixed dye is invisible to the naked eye.

16. The means of claim 15 wherein the dye is affixed on a rim of the optical disk.

17. The means of claim 15 wherein the dye is screen printed onto at least one side of the disk.

18. The means of claim 15 wherein the optical disk comprises a portion suitable for writing visible data and wherein the dye is not affixed on the portion suitable for writing visible data.

19. The means of claim 15 wherein the optical disk comprises a portion suitable for writing visible data and wherein the dye is affixed on the portion suitable for writing visible data.

20. The means of claim 15 wherein the data is control data.

21. The means of claim 15 wherein the dye is selected from the group consisting of the following compounds: