Hologram methods for signature security, consolidated content, and an accelerometer

• US 20070127096A1
• Filed: 12/07/2005
• Published: 06/07/2007
• Est. Priority Date: 12/07/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Larsen, Glen, Gleghorn, Tyler
• Granted Patent: US 7,738,150 B2
• Time in Patent Office: Days
• US Class Current: 359/2
• CPC Class Codes: G03H 1/00 Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
• CPC Class Codes: G03H 1/0005 Adaptation of holography to specific applications holographic optical element G02B5/32; holographic scanner G02B26/106; recognition using holographic mask G06V10/88; holographic memories G11B7/0065, G11C13/042
• 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 2001/0033 in hologrammetry for measuring or analysing
• CPC Class Codes: G06K 19/06018 one-dimensional coding
• CPC Class Codes: G06K 2019/0629 Holographic, diffractive or retroreflective recording
• CPC Class Codes: Y10S 359/90 Methods

Abstract

Techniques for identifying encoded digital data in a multichannel hologram are described. A method can include steps of reading a first channel of a multichannel hologram, extracting first content data stored in the first channel, reading a second channel of the multichannel hologram, extracting second content data stored in the second channel, and utilizing the extracted content data. The extracted content data may be used for digital signature recognition. A system can include a multichannel hologram configured to store first, second, and third content data at first, second, and third channels respectively, at least one optical sensor configured to read the first, second, and third channels of the multichannel hologram and extract the first, second, and third content data, and a processor configured to measure an acceleration when the system is acted upon by a force.

Claims

1. A computer-readable medium having computer-executable commands for performing a method for digital handwriting recognition comprising steps of:

reading a first channel of a multichannel hologram;

extracting first content data stored in the first channel;

reading at least a second channel of the multichannel hologram;

extracting second content data stored in the at least second channel; and

determining an authentic digital handwriting based upon the extracted first and second content data.

2. The computer-readable medium of claim 1, wherein the computer-executable commands further comprise a step of calculating a first tilt angle of a device relative to the multichannel hologram based upon the extracted first content data.

3. The computer-readable medium of claim 2, wherein the computer-executable commands further comprise a step of calculating a second tilt angle of the device relative to the multichannel hologram based upon the extracted second content data.

4. The computer-readable medium of claim 3, wherein the step of determining is based upon the calculated first and second tilt angles.

5. The computer-readable medium of claim 1, wherein the computer-executable commands further comprise a step of sending the extracted first content data and second content data to a processor.

6. The computer-readable medium of claim 1, wherein the computer-executable commands further comprise a step of recording the authentic digital handwriting.

7. The computer-readable medium of claim 6, wherein the first and second content data corresponds to a first and second angle of a field of view of an optical sensor relative to the multichannel hologram.

8. A system for measuring acceleration of an object when a force is applied, the system comprising:

a first multichannel hologram configured to store first, second, and third content data at first, second, and third channels respectively;

at least one optical sensor configured to read the first, second, and third channels of the first multichannel hologram and extract the first, second, and third content data; and

a processor configured to measure an acceleration when the system is acted upon by a force.

9. The system of claim 8, further comprising:

a package frame of the object, the package frame including;

an outer portion operatively connected to the at least one optical sensor;

a pendulum portion, operatively connected to the first multichannel hologram; and

a hinge configured to connect the outer portion to the pendulum portion, wherein an opening separates the outer portion from the pendulum portion.

10. The system of claim 9, wherein the processor is configured to measure the acceleration of the pendulum portion with respect to the outer portion.

11. The system of claim 10, wherein the processor is further configured to measure the acceleration based upon the extracted first, second, and third content data.

12. The system of claim 10, wherein the at least one optical sensor includes a field of view configured to read a first portion of the first multichannel hologram.

13. The system of claim 12, wherein the field of view of the at least one optical sensor is further configured to simultaneously read a second portion of the first multichannel hologram.

14. The system of claim 13, wherein the at least one optical sensor includes a lens configured to separate portions of the field of view of the at least one optical sensor.

15. The system of claim 10, wherein a first optical sensor of the at least one optical sensor includes a first field of view of a first lens to read a first portion of the first multichannel hologram and a second optical sensor of the at least one optical sensor includes a second field of view of a second lens to read a second portion of the first multichannel hologram.

16. The system of claim 15, wherein the first and second field of views at least partially overlap.

17. The system of claim 8, further comprising:

a second multichannel hologram configured to store fourth, fifth, and sixth content data at fourth, fifth, and sixth channels respectively;

at least one optical sensor configured to read the fourth, fifth, and sixth channels of the second multichannel hologram and extract the fourth, fifth, and sixth content data; and

wherein the first and second multichannel holograms are orthogonal to each other.

18. A multichannel hologram for presentation of content data comprising:

first content data occupying a first channel of the multichannel hologram, the first channel occupying a predefined X-axis by Y-axis area of the multichannel hologram readable within a first view angle range;

second content data occupying a second channel of the multichannel hologram, the second channel occupying the predefined X-axis by Y-axis area readable within a second view angle range; and

third content data occupying a third channel of the multichannel hologram, the third channel occupying the predefined X-axis by Y-axis area readable within a third view angle range,

wherein each of the first, second, and third channels are configured to be read at different view angles.

19. The multichannel hologram of claim 18, wherein the first, second, and third content data include regulatory indicia.

20. The multichannel hologram of claim 18, wherein the first, second, and third content data include user interface element data.