User interface impact actuator

Patent metadata

Field	Value
Publication number	US-9733704-B2
Application number	US-13785708-A
Country	US
Kind code	B2
Filing date	Jun 12, 2008
Priority date	Jun 12, 2008
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

Abstract

A system generates a haptic effect that simulates a mechanical button. The system receives a signal that indicates that a user has contacted a user interface of the system. The system includes an impact actuator. In response to the signal, a moving element of the impact actuator contacts the user interface, which generates the haptic effect.

First claim

What is claimed is:

1. A method of generating a haptic effect simulating a mechanical button, the method comprising:
sensing a position and magnitude of at least one touch input on a touchscreen of a user interface;
generating a haptic effect signal based on the touch input with a processor, the haptic effect signal including a driving pulse for an impact actuator having a moving element;
applying the driving pulse to the impact actuator to cause the moving element to contact the touchscreen and initiate a haptic effect;
maintaining the contact between the moving element and the touchscreen for a predetermined time duration to dampen the haptic effect based on the maintained contact between the moving element and the touchscreen; and
discontinuing contact between the moving element and the touchscreen after the predetermined time duration,
wherein the haptic effect is a vibration waveform resulting from the contact between the moving element and the touchscreen, and
wherein the vibration waveform consists of a single cycle sine wave that includes one up cycle and one down cycle to simulate the mechanical button.

2. The method of claim 1 , wherein the impact actuator comprises a piezo bender, and the moving element is coupled to an end of the piezo bender and is configured to strike the touch screen to initiate the haptic effect.

3. The method of claim 2 , wherein the moving element is a rubber mallet coupled to the end of the piezo bender.

4. A device comprising:
a housing;
a user interface supported by the housing, the user interface comprising a touchscreen configured to sense a position and magnitude of at least one touch input on the touchscreen;
a processor coupled to the user interface and configured to generate a haptic effect signal based on the touch input, the haptic effect signal including a driving pulse; and
an impact actuator coupled to the processor and configured to receive the driving pulse generated by the processor, wherein the impact actuator comprises a moving element configured to contact the touchscreen and initiate a haptic effect simulating a mechanical button upon receipt of the driving pulse;
wherein the moving element is further configured to maintain the contact with the touchscreen for a predetermined time duration to dampen the haptic effect based on the maintained contact with the touchscreen;
wherein the moving element is further configured to discontinue the contact with the touchscreen after the predetermined time duration;
wherein the haptic effect is a vibration waveform resulting from the contact between the moving element and the touchscreen; and
wherein the vibration waveform consists of a single cycle sine wave which includes one up cycle and one down cycle to simulate the mechanical button.

5. The device of claim 4 , wherein the impact actuator comprises a piezo bender, and the moving element is coupled to an end of the piezo bender and is configured to strike the touch screen to initiate the haptic effect.

6. The device of claim 5 , wherein the moving element is a rubber mallet coupled to the end of the piezo bender.

7. A device comprising:
a housing;
a user interface supported by the housing, the user interface comprising a touchscreen configured to sense a position and magnitude of at least one touch input on the touchscreen;
a processor coupled to the user interface and configured to generate a haptic effect signal based on the touch input, the haptic effect signal including a driving pulse; and
an impact actuator coupled to the processor and configured to receive the driving pulse generated by the processor, wherein the impact actuator comprises a moving element configured to contact the touchscreen and initiate a haptic effect simulating a mechanical button upon receipt of the driving pulse;
wherein the moving element is further configured to maintain the contact with the touchscreen for a predetermined time duration to dampen the haptic effect based on the maintained contact with the touchscreen;
wherein the moving element is further configured to discontinue the contact with the touchscreen after the predetermined time duration;
wherein the haptic effect is a vibration waveform resulting from the contact between the moving element and the touchscreen; and
wherein the impact actuator comprises a piezo bender, and the moving element is coupled to an end of the piezo bender and is configured to strike the touch screen to initiate the haptic effect.

Assignees

• Cruz-Hernandez Juan Manuel
• Grant Danny A
• Immersion Corp

Inventors

• Cruz-Hernandez Juan Manuel
• Grant Danny A

Classifications

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title