# US 2014/0192629 A1 · Color rewritable storage

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- Number: US 2014/0192629 A1
- Document ID: US20140192629A1
- Status: Published application
- Kind: A1
- Application number: 14/149,765
- Filed: 2014-01-07
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Inventors: Justin William Zahrt
- Web page: https://patentgrep.com/patent/US20140192629A1

## CPC

- G11B 13/04: magnetically {or by magnetisation} and optically {or by radiation, for changing or sensing optical properties}
- G11B 11/10504: {Recording (for shaping of magnetic domains G11B11/10528, for compensation of shift G11B11/1053)}
- G11B 2005/0021: {Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal}
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

A chromatic data storage system includes a substrate. The substrate includes nanoparticles operable to emit light frequencies (e.g. color) based upon a magnetic field strength, and a curable material operable to solidify spacing and/or orientation of the nanoparticles. In addition, the chromatic data storage system includes a writer operable to emit a magnetic field, and further operable to cure the curable material. Furthermore, the chromatic data storage system includes a reader operable to photodetect the light frequencies, wherein the light frequencies represent computer-readable instructions.

## Claims

### Claim 1

A chromatic magnetic data storage system comprising:
a substrate operable to emit light frequencies based on a magnetic field strength;
a writer operable to emit an energy field to the substrate operable to affect the light frequencies; and
a reader operable to photodetect the light frequencies, wherein the light frequencies represent computer-readable instructions.

### Claim 2 (depends on 1)

The system of claim 1 wherein the flight frequencies are color light frequencies.

### Claim 3 (depends on 1)

The system of claim 1 wherein the substrate includes nanoparticles operable to emit the light frequencies.

### Claim 4 (depends on 1)

The system of claim 1 wherein the substrate includes a material operable to allow spacing of nanoparticles to change in response to application of energy to the material.

### Claim 5 (depends on 1)

The system of claim 1 wherein the substrate includes a material operable to allow orientation of nanoparticles to change in response to application of energy to the material.

### Claim 6 (depends on 1)

The system of claim 1 wherein the substrate includes a material operable to solidify spacing of the nanoparticles in response to removal of the energy from the material.

### Claim 7 (depends on 1)

The system of claim 1 wherein the substrate includes a material operable to solidify orientation of the nanoparticles in response to removal of the energy from the material.

### Claim 8

A method of storing re-writable data comprising:
applying a laser to a material including nanoparticles;
applying a magnetic field to the nanoparticles;
removing the laser from the material, wherein the removing solidifies spacing or orientation of the nanoparticles.

### Claim 9 (depends on 8)

The method of claim 8, wherein the applying the laser allows a change of spacing or orientation of nanoparticles.

### Claim 10 (depends on 8)

The method of claim 8, wherein the nanoparticles are operable to emit light frequencies based upon a magnetic field strength, wherein the light frequencies are color light frequencies.

### Claim 11 (depends on 10)

The method of claim 10, wherein the light frequencies represent computer-readable instructions.

### Claim 12 (depends on 8)

The method of claim 8, wherein the applying the magnetic field changes the position or orientation of one of the nanoparticles.

### Claim 13 (depends on 8)

The method of claim 8, wherein the removing the laser allows the material to cure.

### Claim 14 (depends on 8)

A system configured to preform the method of claim 8.

### Claim 15

A system comprising:
a layer of a base material wherein the layer includes nanoparticles; and
a writer operable to form a plurality of color mits on the base material.

### Claim 16 (depends on 15)

The system of claim 15, wherein the nanoparticles are magnetic.

### Claim 17 (depends on 15)

The system of claim 15, wherein the nanoparticles are operable to generate a color.

### Claim 18 (depends on 17)

The system of claim 17, wherein the color is a structural color.

### Claim 19 (depends on 15)

The system of claim 15, wherein at least one of the color mits represents computer-readable instructions.

### Claim 20 (depends on 15)

The system of claim 15, wherein the position or orientation of the nanoparticles form the plurality of color mits.