Interactive textiles

• US 9,933,908 B2
• Filed: 01/04/2017
• Issued: 04/03/2018
• Est. Priority Date: 08/15/2014
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google LLC (Alphabet Inc.)
• Inventors: Poupyrev, Ivan
• Primary Examiner(s): PARDO, THUY N
• Application Number:
  US15/398,147
• Publication Number:
  US 20170115777A1
• Time in Patent Office: 454 Days
• Field of Search: 345156, 345173, 345174, 600393, 428328, 348700
• CPC Class Codes: A41D 1/005 with embedded cable or connector
• CPC Class Codes: A47G 19/2227 with means for amusing or giving information to the user A47G23/16 takes precedence
• CPC Class Codes: D03D 1/0088 Fabrics having an electronic function
• CPC Class Codes: D10B 2401/18 including electronic components
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

This document describes interactive textiles. An interactive textile includes a grid of conductive thread woven into the interactive textile to form a capacitive touch sensor that is configured to detect touch-input. The interactive textile can process the touch-input to generate touch data that is useable to control various remote devices. For example, the interactive textiles may aid users in controlling volume on a stereo, pausing a movie playing on a television, or selecting a webpage on a desktop computer. Due to the flexibility of textiles, the interactive textile may be easily integrated within flexible objects, such as clothing, handbags, fabric casings, hats, and so forth. In one or more implementations, the interactive textiles may be integrated within various hard objects, such as by injection molding the interactive textile into a plastic cup, a hard casing of a smart phone, and so forth.

Claims

1. A flexible object comprising:

an interactive textile integrated within the flexible object, the interactive textile comprising a plurality of conductive threads woven into the interactive textile, the interactive textile including;

a first textile layer comprising first conductive threads of the plurality of conductive threads;

a second textile layer comprising second conductive threads of the plurality of conductive threads, the second conductive threads positioned to cross the first conductive threads; and

a third textile layer not including conductive threads, the third textile layer positioned between the first textile layer and the second textile layer to prevent the first conductive threads from making direct contact with the second conductive threads; and

a textile controller coupled to at least one conductive thread of the plurality of conductive threads, the textile controller configured to;

detect touch-input to the at least one conductive thread by detecting a change in capacitance to the at least one conductive thread when an object touches the at least one conductive thread; and

process the touch-input to provide touch data usable to control a computing device or an application at the computing device.

2. The flexible object recited in claim 1, wherein the flexible object is made from a fabric.

3. The flexible object as recited in claim 1, wherein each conductive thread of the plurality of conductive threads comprises a conductive wire twisted with a flexible thread.

4. The flexible object as recited in claim 3, wherein the conductive wire comprises a copper wire, a gold wire, or a silver wire.

5. The flexible object as recited in claim 3, wherein the flexible thread comprises a cotton thread, a wool thread, a silk thread, a nylon thread, or a polyester thread.

6. The flexible object as recited in claim 3, wherein the conductive wire is insulated.

7. The flexible object as recited in claim 1, wherein:

the plurality of conductive threads form a grid of conductive threads; and

the second conductive threads of the grid of conductive threads are positioned substantially orthogonal to the first conductive threads.

8. The flexible object as recited in claim 1, wherein the textile controller is configured to detect the touch-input by:

charging the first conductive threads and charging the second conductive threads by applying a control signal to both the first conductive threads and the second conductive threads; and

detecting a change in capacitance on a corresponding first conductive thread and a corresponding second conductive thread when the touch-input is received.

9. The flexible object as recited in claim 8, wherein the textile controller is configured to process the touch-input by:

determining a position of the touch-input as an intersection point between the corresponding first conductive thread and the corresponding second conductive thread on the grid of conductive thread.

10. The flexible object as recited in claim 1, wherein the textile controller is configured to detect the touch-input by:

charging the first conductive threads by applying a control signal to the first conductive threads to cause the first conductive threads to capacitively couple to the second conductive threads; and

scanning the second conductive threads to detect a change in capacitance on a corresponding second conductive thread when the touch-input is received.

11. The flexible object as recited in claim 10, wherein the textile controller is configured to process the touch-input by determining a position of the touch-input based on the corresponding second conductive thread on which the change in capacitance is detected.

12. The flexible object as recited in claim 1, further comprising a network interface configured to communicate the touch data over a network to a gesture manager implemented at the computing device to enable the gesture manager to control the computing device or the application at the computing device based on the touch data.

13. The flexible object as recited in claim 1, wherein the interactive textile is integrated with an image on the flexible object, and wherein different areas of the image are mapped to different areas of the interactive textile to enable a user to initiate different controls for the computing device or the application at the computing device by touching the different areas of the image.

14. A system comprising:

a textile comprising a plurality of conductive threads woven with non-conductive threads, the textile including;

a first textile layer comprising first conductive threads of the plurality of conducive threads;

a second textile layer comprising second conductive threads of the plurality of conductive threads; and

a third textile layer having no conductive threads and positioned between the first textile layer and the second textile layer to prevent the first conductive threads from directly contacting the second conductive threads;

a textile controller configured to detect a position of touch-input on the textile by detecting a change in capacitance of one or more conductive threads of the plurality of conductive threads; and

a network interface configured to communicate the position of the touch-input over a network to a computing device to control the computing device.

15. The system as recited in claim 14, further comprising a gesture manager implemented at the computing device, the gesture manager configured to:

receive the position of the touch-input; and

control the computing device, or an application at the computing device, based on the touch-input.

16. The system as recited in claim 14, wherein the textile is attached to an article of clothing or is part of the article of clothing.

17. A method comprising:

detecting touch-input to one or more conductive threads woven into an interactive textile integrated within a flexible object, the touch-input detected based on a change in capacitance of one or more first conductive threads in a first textile layer of the interactive textile that are separated from second conductive threads in a second textile layer of the interactive textile by a third textile layer of the interactive textile, the second conductive threads configured to cross the first conductive threads, the third textile layer not having conductive threads and configured to prevent the first conductive threads from directly contacting the second conductive threads;

generating touch data based on the touch-input, the touch data comprising a position of the touch-input on the interactive textile; and

communicating the touch data to a computing device to control the computing device or one or more applications at the computing device.

18. The method as recited in claim 17, wherein the interactive textile includes a grid of conductive thread comprising the first conductive threads and the second conductive threads positioned substantially orthogonal to the first conductive threads.

19. The method as recited in claim 17, wherein the detecting touch-input comprises detecting the touch-input using self-capacitance sensing or using projected capacitance sensing.

20. The method as recited in claim 17, wherein the interactive textile is weaved with an image on the flexible object, and wherein the image is configured to provide visual guidance for specific locations on the flexible object that are touchable to initiate different controls for the computing device or the one or more applications at the computing device.