Systems and methods for locking an input area associated with detected touch location in a force-based touchscreen

• US 9,513,707 B2
• Filed: 10/08/2014
• Issued: 12/06/2016
• Est. Priority Date: 10/08/2013
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Acquisition, LLC
• Original Assignee: TK Holdings Incorporated (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Lisseman, Jason, Andrews, David
• Primary Examiner(s): Feild, Joseph
• Assistant Examiner(s): FRANK, EMILY J
• Application Number:
  US14/509,535
• Publication Number:
  US 20150097795A1
• Time in Patent Office: 790 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B62D 1/04 Hand wheels
• 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 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0414 using force sensing means to determine a position
• CPC Class Codes: G06F 3/167 Audio in a user interface, e.g. using voice commands for navigating, audio feedback

Abstract

A method for locking an input area associated with a force-based touch interface comprises detecting a first touch value associated with a first user interaction with a first area of a touch interface. The first touch value includes information indicative of a location of the first area of the touch interface. The method also comprises establishing a first virtual input area based on the location, wherein a boundary associated with first virtual input area is contained within a boundary defined by the touch interface. The method also comprises detecting a second touch value associated with a second user interaction with the touch interface, and determining that a location associated with the second touch value is within the first virtual input area. The method also involves generating a control signal for causing execution of a first function, based on the determination that the second touch value is within the first virtual input area.

Claims

1. A method for locking an input area associated with a force-based touch interface, comprising:

detecting a first touch value associated with a first user interaction with a first area of a touch interface, the first touch value including information indicative of a location of the first area of the touch interface;

establishing a first virtual input area based on the location, wherein a boundary associated with first virtual input area is contained within a boundary defined by the touch interface;

detecting a second touch value associated with a second user interaction with a second area of the touch interface;

in response to determining that a location associated with the second touch value is within the first virtual input area, generating a control signal for causing execution of a first function based on the determination that the second touch value is within the first virtual input area,

in response to determining that the location associated with the second touch value is outside of the first virtual input area and the first touch value has not been interrupted, ignoring the second touch value; and

in response to determining that the location associated with the second touch value is outside of the first virtual input area and the first touch value has been interrupted, establishing a second virtual input area based on the location of the second touch value, wherein a boundary associated with the second virtual input area is contained within the boundary defined by the touch interface and is separate and spaced apart from the first virtual input area.

2. The method of claim 1, further comprising:

detecting a third touch value associated with a third user interaction with the touch interface;

determining that a location associated with third touch value is not within the first virtual input area and the second touch value has not been interrupted; and

ignoring the third touch value.

3. The method of claim 1, wherein an interruption comprises the first user interaction with the touch interface being released.

4. The method of claim 1, wherein the first virtual input area is substantially similar in size and shape to the first area of the touch interface.

5. The method of claim 1, further comprising transmitting a first feedback signal in response to the detection of the first touch value, the first feedback signal configured to cause generation of first haptic feedback and first audio feedback.

6. The method of claim 5, further comprising transmitting a second feedback signal in response to the detection of the second touch value, the second feedback signal configured to cause generation of second haptic feedback and second audio feedback.

7. The method of claim 6, wherein the second haptic feedback and the second audio feedback are substantially similar to the first haptic feedback and first audio feedback, respectively.

8. The method of claim 5, wherein the first feedback signal is transmitted to an acoustic actuator that is configured to generate both the first haptic feedback and first audio feedback.

9. A method for limiting an input area associated with a force-based haptic touchscreen based on a detected touch location, the method comprising:

establishing a first virtual input area corresponding to a physical area of a haptic touchscreen;

detecting a first touch event associated with the first virtual input area, the first touch event indicative of a user interaction with a first portion of the physical area of the haptic touchscreen;

establishing a second virtual input area responsive to the detected first touch event, the second virtual input area corresponding to the first portion of the physical area;

detecting a second touch event based on a second user interaction with the physical area of the haptic touchscreen;

in response to the second touch event being within the second virtual input area, generating a signal for controlling a function associated with the second virtual input area;

in response to the second touch event being outside of the second virtual input area and the first touch event being uninterrupted, ignoring the second touch event; and

in response to the second touch event being outside of the second virtual input area and the first touch event being interrupted, establishing a third virtual input area, the third virtual input area corresponding to a second portion of the physical area associated with a location of the second touch event.

10. The method of claim 9, wherein the first touch event associated with the first portion of the physical area is associated with a first set of functions, and wherein the first set of functions comprises the function associated with the second virtual input area.

11. The method of claim 10, wherein the function is a first function, and the second portion of the physical area is associated with a second set of functions, the method further comprising:

detecting a third touch event based on a third user interaction within the third virtual input area; and

in response to detecting the third touch event within the third virtual input area, generating a signal for controlling a second function associated with the third virtual input area, the second function being within the second set of functions.

12. The method of claim 9, wherein the second virtual area is a sub-area contained within boundaries associated with the first virtual input area.

13. The method of claim 9, wherein an interruption comprises the first user interaction with the physical area of the haptic touchscreen being released.

14. The method of claim 9, wherein the second virtual input area is substantially similar in size and shape to the first portion of the physical area of the haptic touchscreen.

15. A force-based haptic human-machine interface, comprising:

a touch plate having a touch surface;

at least one force sensor coupled to the touch plate and configured to detect a force applied to the touch surface;

an actuator coupled to the touch plate and configured to deliver a mechanical output to the touch plate;

a processor coupled to the at least one force sensor and the actuator, wherein the processor is in communication with a memory, and the processor executes computer-readable instructions stored on the memory, the instructions causing the processor to;

determine a first touch value associated with a first user interaction with a first area of the touch surface, the first touch value including information indicative of a location of the first area of the touch surface;

establish a first virtual input area based on the location, wherein a boundary associated with first virtual input area is contained within a boundary defined by the touch surface;

detect a second touch value associated with a second user interaction with the touch surface;

in response to determining that a location associated with the second touch value is within the first virtual input area, generate a control signal for causing execution of a first function based on the determination that the second touch value is within the first virtual input area;

in response to determining that the location associated with the second touch value is outside of the first virtual input area and the first touch value has not been interrupted, ignore the second touch value; and

in response to determining that the location associated with the second touch value is outside of the first virtual input area and the first touch value has been interrupted, establish a second virtual input area based on the location of the second touch value, wherein a boundary associated with the second virtual input area is within contained within the boundary defined by the touch surface, and the second virtual input area is separate and spaced apart from the first virtual input area.

16. The force-based haptic human-machine interface of claim 15, wherein the at least one force sensor includes a plurality of force sensors, each of which is coupled to the touch plate and configured to detect a respective portion of the force applied to a corresponding area of the touch surface based on the location of the sensor.

17. The force-based haptic human-machine interface of claim 15, wherein the actuator is an acoustic actuator and the processor is further configured to transmit, to the actuator, a first feedback signal in response to the detection of the first touch value, the first feedback signal configured to cause the actuator to generate a first haptic feedback and a first audio feedback.

18. The force-based haptic human-machine interface of claim 17, wherein the instructions further cause the processor to transmit, to the actuator, a second feedback signal in response to the detection of the second touch value, the second feedback signal configured to cause the actuator to generate a second haptic feedback and a second audio feedback.

19. The force-based haptic human-machine interface of claim 18, wherein the second haptic feedback and the second audio feedback are substantially similar to the first haptic feedback and first audio feedback, respectively.