Flexible device deformation measurement

• US 9,766,762 B2
• Filed: 12/22/2015
• Issued: 09/19/2017
• Est. Priority Date: 11/14/2013
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Salo, Antti, Kosonen, Matti
• Primary Examiner(s): Noori, Max
• Application Number:
  US14/978,153
• Publication Number:
  US 20160109985A1
• Time in Patent Office: 637 Days
• Field of Search: 73862381, 73862391, 73862626
• CPC Class Codes: G01B 7/16 for measuring the deformation in a solid, e.g. by resistance strain gauge
• CPC Class Codes: G01B 7/22 using change in capacitance
• CPC Class Codes: G01L 1/04 by measuring elastic deformation of gauges, e.g. of springs
• CPC Class Codes: G01L 1/12 by measuring variations in the magnetic properties of materials resulting from the application of stress
• CPC Class Codes: G01L 1/14 by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
• CPC Class Codes: G01L 1/142 using capacitors
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1641 the display being formed by a plurality of foldable display components G06F1/1647 takes precedence
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• 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 2203/04105 Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/044 by capacitive means
• 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 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/0487 using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser

Abstract

Monitoring deformation of a flexible electronic apparatus. Changes in space within the apparatus between at least two measurement points are detected; and degree of deformation of the apparatus is determined based on the detected changes in the space within the apparatus between the at least two measurement points.

Claims

1. A method comprising:

monitoring deformation of a flexible hand-held mobile electronic apparatus, said apparatus comprising,

a processing unit;

at least one memory, the at least one memory having computer program code stored thereon;

a communication interface configured to communicate data over at least one of a wired link or a wireless link; and

a user interface configured to receive input from, and display output to, a user of the apparatus, wherein the user interface comprises a touch screen;

wherein said monitoring of deformation comprises;

detecting changes in space within the apparatus between at least two different measurement points, wherein said detecting changes in space comprises detecting changes in a capacitive environment of the touch screen caused by changes in space within the apparatus; and

determining a degree of deformation of the apparatus based on the detected changes in space within the apparatus between the at least two measurement points.

2. A method according to claim 1, wherein said at least two measurement points reside in at least two different parts of the apparatus, wherein said at least two parts are configured to move in relation to one another to allow deformation of the flexible electronic apparatus.

3. A method according to claim 1, wherein said at least two measurement points reside on different surfaces of one deforming part of the apparatus.

4. A method according to claim 1, wherein said at least two measurement points reside inside the apparatus.

5. A method according to claim 1, wherein at least one of the two measurement points resides on a cover part of the apparatus.

6. A method according to claim 1, wherein said detection of changes in space within the apparatus comprises detecting at least one of a gap or contact between the at least two measurement points.

7. A method according to claim 6, further comprising one of:

the at least two measurement points each residing on rigid components of the apparatus,

the at least two measurement points each residing on flexible components of the apparatus;

or

one of the at least two measurement points residing on a rigid component of the apparatus and another of the at least two measurement points residing on a flexible component of the apparatus.

8. A method according to claim 1, wherein said detecting of changes in space within the apparatus comprises detecting a change in force experienced between the at least two measurement points.

9. A method according to claim 1, wherein the deformation of the apparatus is a temporary deformation of the apparatus into a different shape by a user of the apparatus.

10. A method according to claim 1, further comprising determining an action to be performed by the apparatus based on the determined degree of deformation.

11. A method according to claim 10, wherein the determined degree of deformation of the apparatus comprises at least one of a direction of deformation or an amount of deformation.

12. A method according to claim 1, wherein the touch screen comprises an electrode grid, and wherein a first of the at least two measurement points resides in the electrode grid and a second of the at least two measurement points resides elsewhere in the apparatus.

13. A method according to claim 12, wherein the second of the at least two measurement points resides on a surface below the touchscreen.

14. A method according to claim 1, wherein the apparatus is one of a tablet computer, a personal digital assistant, a smartphone, a media player, an e-book reader, a display or a flat-screen television, and wherein the touchscreen resides on a surface of the apparatus.

15. A method according to claim 1, wherein the apparatus further comprises a top cover and a bottom cover, wherein at least one of said top cover or said bottom cover comprises a flexible structure that enables deformation of the apparatus by a user, and wherein said flexible structure is constructed of at least one of plastic, thin glass, thin metal or an elastomer.

16. A flexible hand-held mobile electronic apparatus comprising:

a processing unit;

at least one memory, the at least one memory having computer program code stored thereon;

a communication interface configured to communicate data over at least one of a wired link or a wireless link;

a user interface configured to receive input from, and display output to, a user of the apparatus, wherein the user interface further comprises at least one touch screen;

an apparatus structure configured to allow deformation of the apparatus;

detection equipment configured to detect changes in space within the apparatus between at least two different measurement points, wherein said detection equipment comprises said touch screen and wherein said touch screen is configured to detect changes in capacitive environment of the touch screen caused by changes in space within the apparatus; and

the processing unit configured to determine a degree of deformation of the apparatus based on the detected changes in space within the apparatus between the at least two measurement points.

17. An apparatus according to claim 16, wherein said detection equipment is configured to detect a change in force caused between the at least two measurement points.

18. An apparatus according to claim 16, wherein the touch screen comprises at least one capacitive sensor configured to sense at least one of a surface capacitance, a projected capacitance, a mutual capacitance or a self-capacitance.

19. An apparatus according to claim 16, wherein the processing unit is further configured to control the apparatus based on the determined degree of deformation of the apparatus.

20. An apparatus according to claim 19, wherein the user interface comprises at least one of hard buttons, soft buttons, or an additional display, and wherein the processing unit is configured to further control the apparatus based on at least one of voice recognition, tracking eye movement of a user, recognizing facial expressions of the user or recognizing at least one of movement or gestures of the user.

21. An apparatus according to claim 16, further comprising a plurality of parallel layers that are configured to move in relation to each other in a parallel direction to allow deformation of the apparatus, and wherein portions of the parallel layers farthest away from a neutral plane through the apparatus deform more than portions of the parallel layers nearest the neutral plane.

22. An apparatus according to claim 21, wherein detecting changes in space between the measurement points comprises detecting movements of the plurality of parallel layers in relation to each other.

23. An apparatus according to claim 16, further comprising a top cover and a bottom cover, the apparatus further comprising a resilient internal structure in a space between the covers.

24. An apparatus according to claim 23, wherein the resilient internal structure comprises a cavity filled with any one of a fluid or a gas within the apparatus and said detection of changes in space within the apparatus further comprises detecting changes in pressure experienced by any one of the fluid or the gas within the cavity.

25. An apparatus according to claim 16, wherein the at least two measurement points are located on opposite surfaces of the apparatus, and wherein the processor is further configured to perform at least one of detecting or measuring relative movement of the at least two measurement points.

26. An apparatus according to claim 16, wherein the processor is further configured to measure changes in at least one of gaps or distance between the measurement points.

27. An apparatus according to claim 16, wherein the processor is further configured to detect contact between the measurement points.

28. An apparatus according to claim 16, wherein said detection of changes in space within the apparatus further comprises detecting changes in pressure experienced within the apparatus.

29. An apparatus according to claim 16, wherein the apparatus comprises elastic material between the at least two measurement points and said detection of changes in space within the apparatus further comprises detecting changes within the elastic material.