# US 9,775,513 B1 · Input detection system

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- Number: US 9,775,513 B1
- Document ID: US9775513B1
- Status: Granted
- Kind: B1
- Application number: 14/718,187
- Filed: 2015-05-21
- Granted: 2017-10-03
- Earliest claimed: 2012-09-28
- Assignees: Verily Life Sciences LLC
- Applicants: Verily Life Sciences LLC
- Inventors: Harvey Ho; Nathan Pletcher; Olivia Hatalsky
- Web page: https://patentgrep.com/patent/US9775513B1

## CPC

- A61B 3/113: for determining or recording eye movement
- A61B 3/0025: {characterised by electronic signal processing, e.g. eye models}
- A61B 3/18: Arrangement of plural eye-testing or -examining apparatus
- G02C 7/04: Contact lenses for the eyes (disinfection or sterilisation of contact lenses A61L12/00)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

Systems for determining an individual's current focal plane by measuring parameters associated with binocular vision focusing using one or two contact lenses are provided. In an aspect, a system includes a first contact lens and a second contact lens respectively configured to be worn over first and second eyes of an individual. The first contact lens and the second contact lens respectively include first and second substrates, and first and second circuits respectively disposed on or within the first and second substrates and configured to respectively generate first data related to a focal trajectory of the first eye and second data related to a focal trajectory of the second eye, wherein the first circuit employs the second contact lens to generate the first data and the second circuit employs the first contact lens to generate the second data.

## Claims

### Claim 1

A system, comprising:
a first contact lens and a second contact lens respectively configured to be worn over first and second eyes, wherein the first contact lens and the second contact lens respectively comprise:
first and second circuits respectively disposed on or within the first and second contact lenses and configured to respectively generate first data related to a first focal trajectory of the first eye and second data related to a second focal trajectory of the second eye, wherein the first circuit is configured to employ the second contact lens to generate the first data and the second circuit is configured to employ the first contact lens to generate the second data.

### Claim 2 (depends on 1)

The system of claim 1, wherein the first and second circuits are configured to generate the first and second data respectively in response to movement of the first and second eyes.

### Claim 3 (depends on 2)

The system of claim 2, wherein the movement is vergence movement of the first and second eyes.

### Claim 4 (depends on 1)

The system of claim 1, wherein the first and second contact lenses respectively comprise first and second communication components configured to at least one of: transmit information to one another, or transmit information to an external device.

### Claim 5 (depends on 1)

The system of claim 1, wherein the first contact lens comprises a communication component configured to wirelessly transmit the first data to the second contact lens, and wherein the second contact lens comprises a communication component configured to wirelessly transmit the first and second data to an external device.

### Claim 6 (depends on 1)

The system of claim 1, wherein the first contact lens comprises a communication component configured to wirelessly transmit the first data to the second contact lens, and wherein the second contact lens comprises a processor configured to determine the individual's current focal distance based on the first and second data.

### Claim 7 (depends on 1)

The system of claim 1, wherein,
the first circuit component comprises one or more sensors configured to generate first movement data related to movement of the first contact lens and a communication component configured to transmit the first movement data to the second circuit;
the second circuit comprises one or more sensors configured to generate second movement data related to movement of the second contact lens and a communication component configured to transmit the second movement data to the first circuit; and
wherein the first circuit generates the first data based on the first movement data and the second movement data, and the second circuit generates the second data based on the first movement data and the second movement data.

### Claim 8

An apparatus, comprising:
a first contact lens configured to be worn over an eye, the first contact lens comprising:
a vergence component disposed on or within the first contact lens and configured to generate first data related to movement of the first contact lens;
a communication component configured to receive second data related to movement of a second contact lens; and
a processor configured to identify vergence movement of the first and second contact lenses based on the first and second data, and to determine a first position of the first contact lens with respect to a second position of the second contact lens based on the vergence movement.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the processor is configured to identify initiation of the vergence movement and stopping of the vergence movement based on the first and second data and determine the first position of the first contact lens with respect to the second position of the second contact lens at a time of stopping of the vergence movement.

### Claim 10 (depends on 8)

The apparatus of claim 8, wherein the first vergence component comprises one or more sensors configured to generate the first data related to the movement of the first contact lens.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein the one or more sensors include at least one of: a gyroscopic sensor, or an accelerometer.

### Claim 12 (depends on 8)

The apparatus of claim 8, wherein the vergence component further comprises:
a signal emitting component configured to project a first signal away from the first contact lens and towards the second contact lens; and
a signal receiving component configured to receive a reflected signal generated in response to reflection of the first signal;
wherein the processor is configured to determine time of flight information based on the first signal and the reflected signal, and wherein the processor is configured to identify the vergence movement based on the time of flight information.

### Claim 13 (depends on 8)

The apparatus of claim 8, wherein the processor is configured to determine an individual's current focal distance based on the first position of the first contact lens with respect to the second position of the second contact lens.

### Claim 14 (depends on 8)

The apparatus of claim 8, wherein the communication component is configured to transmit the information representative of the first position of the first contact lens with respect to the second position of the second contact lens to an external device that is not disposed on or within another contact lens.

### Claim 15

A method comprising:
generating first data related to a first position of a first eye over which a first contact lens is worn using the first contact lens;
generating second data related to a second position of a second eye over which a second contact lens is worn using the second contact lens;
transmitting the first data from the first contact lens to the second contact lens; and
determining an accommodation value for the second contact lens based upon the first data and the second data.

### Claim 16 (depends on 15)

The method of claim 15, further comprising:
detecting movement of the first eye and the second eye and generating the first data and the second data in response to the detecting.

### Claim 17 (depends on 16)

The method of claim 16, wherein the detecting comprises employing one or more sensors disposed on or within the first and second contact lenses.

### Claim 18 (depends on 16)

The method of claim 16, further comprising:
comparing the first data with the second data; and
determining that the first and second eyes have reached convergence based on the comparing.

### Claim 19 (depends on 18)

The method of claim 18, further comprising:
in response to the determining that the first and second eyes have reached convergence, determining a focal distance of a wearer of the first and second contact lenses based on the first data and the second data.

### Claim 20 (depends on 15)

The method of claim 15, wherein the generating the first data comprises:
emitting a signal from the first contact lens to the second contact lens;
receiving a reflected signal at the first contact lens in response to reflection of the signal off of the second contact lens;
determining time of flight information based on the signal and the reflected signal; and
generating the first data based on the time of flight information.