Data storage on photographs

• US 20040032499A1
• Filed: 08/08/2003
• Published: 02/19/2004
• Est. Priority Date: 10/20/2000
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia, Lapstun, Paul, Walmsley, Simon Robert
• Granted Patent: US 7,236,187 B2
• Time in Patent Office: Days
• US Class Current: 348/207.2
• CPC Class Codes: G06K 19/06037 multi-dimensional coding
• CPC Class Codes: G06K 2019/06225 using wavelength selection, e.g. colour code
• CPC Class Codes: G06K 7/12 using a selected wavelength, e.g. to sense red marks and ignore blue marks

Abstract

A photograph is printed with a normal image and data that is not visible to the unaided human eye. The data can store the details of the image and of a second version of the image that has been transformed by a proprietary image processing program. The data may be recorded in a fault tolerant form enabling the copying or recovery of the original image or of the transformed image notwithstanding damage thereto.

Claims

1. A method including the steps of:

e) receiving image data corresponding to an image;

f) modifying said image data and creating modified image data;

g) converting said original image data and said modified image data into an encoded fault tolerant digital form;

h) printing out said encoded fault tolerant digital form onto a surface of a substrate while simultaneously printing out said image data as a photographic image in a visual, human readable form on the same surface of the said print media,

wherein said substrate carrying photographic image and including said encoded fault tolerant digital form being substantially identical, to an average unaided human eye, to the same substrate and photographic image not including said encoded fault tolerant digital form.

10. The method of claim 1 wherein the converting step includes forming a Reed-Solomon encoded version of said image.

11. The method of claim 1 including applying a high frequency modulation signal to said fault tolerant encoded form such that said permanent record includes repeatable high frequency spectral components.

12. The method of claim 11 wherein said high frequency modulation signal includes a checkerboard two dimensional spatial signal.

13. The method of claim 1 wherein said step of printing out utilizes a cartridge that stores said print media and an ink supply for a printer, which is detachable from said digital camera.

16. The apparatus of claim 13 wherein the at least one invisible ink is an infrared absorbing ink with negligible absorption in the visible spectrum.

17. The apparatus of claim 13 wherein said printer includes a pagewidth printhead using an ink jet structure with a print roll feeding print media therethrough.

2. The method of 1 carried out by a digital camera.

3. The method of 1 further including loading at least one of an image processing program and instructions for the image processing program and the step of modifying the image data includes utilizing the image processing program.

4. The method of 1 wherein the step of printing utilizes an ink jet printing process.

5. The method of 1 including receiving the image data from an imaging system.

6. The method of 1 wherein the image data includes a digital version of the image and wherein the image may be retrieved from the encoded fault tolerant digital form on the surface.

7. The method of 1 wherein the image data also includes details of the image.

8. The method of 1 wherein the encoded fault tolerant digital form is printed with an invisible ink.

9. The method of 1 wherein the invisible ink is infrared absorbing ink with negligible absorption in the visible spectrum.

14. An apparatus for printing encoded fault tolerant digital data on a photograph, said apparatus including:

imaging apparatus configured to capture an image and to output a digital form of the image;

an interface for inputting at least one of an image processing program and instructions for the image processing program;

at least one processor adapted to

modify of said digital form of the image into a modified version of said image according to steps of said image processing program, and

convert said digital format of said image and said modified version of said image into a fault tolerant encoded digital form, and

a printer configured to print simultaneously print said image and said fault tolerant encoded digital form, said printed fault tolerant encoded digital form being invisible to an average unaided human eye.

15. The apparatus of claim 14 wherein the printer is configured to print at least one invisible ink.