HIGH DEFINITION HAPTIC EFFECTS GENERATION USING PRIMITIVES

• US 20130207917A1
• Filed: 02/14/2013
• Published: 08/15/2013
• Est. Priority Date: 02/15/2012
• Status: Active Grant

• Current Assignee: Immersion Corporation
• Original Assignee: Immersion Corporation
• Inventors: CRUZ-HERNANDEZ, Juan Manuel, ULLRICH, Christopher J., WU, Liwen
• Granted Patent: US 9,513,706 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A haptically enabled system receives a haptic effect primitive comprising a plurality of input parameters and receives an input from a sensor. The system generates a haptic effect signal from the haptic effect primitive, the haptic effect signal comprising a plurality of output parameters where at least one of the output parameters is varied based on the sensor input. The system then applies the haptic effect signal to an actuator.

Claims

1. A method of generating haptic effects, the method comprising:

receiving a haptic effect primitive comprising a plurality of input parameters;

receiving an input from a sensor;

generating a haptic effect signal from the haptic effect primitive, wherein the haptic effect signal comprises a plurality of output parameters, and at least one of the output parameters is varied based on the sensor input; and

applying the haptic effect signal to an actuator.

2. The method of claim 1, wherein the varied output parameter is a frequency of the haptic effect signal.

3. The method of claim 2, wherein the frequency is varied using frequency modulation.

4. The method of claim 2, wherein the frequency is varied using phase modulation.

5. The method of claim 2, wherein the frequency is varied using a scaling factor.

6. The method of claim 1, wherein the varied output parameter is a magnitude of the haptic effect signal, and the magnitude is varied using a Physically Inspired Stochastic Event Modeling algorithm.

7. The method of claim 1, wherein the input is an acceleration, and the sensor is an accelerometer.

8. The method of claim 1, wherein the actuator comprises a resonant actuator.

9. The method of claim 8, wherein the resonator actuator comprises one of a piezo actuator, an electroactive polymer actuator, or an electro-static actuator.

10. A computer-readable medium having instructions stored thereon that, when executed by a processor, cause the processor to generate haptic effects, the generating comprising:

receiving a haptic effect primitive comprising a plurality of input parameters;

receiving an input from a sensor;

generating a haptic effect signal from the haptic effect primitive, wherein the haptic effect signal comprises a plurality of output parameters, and at least one of the output parameters is varied based on the sensor input; and

applying the haptic effect signal to an actuator.

11. The computer-readable medium of claim 10, wherein the varied output parameter is a frequency of the haptic effect signal.

12. The computer-readable medium of claim 11, wherein the frequency is varied using frequency modulation.

13. The computer-readable medium of claim 11, wherein the frequency is varied using phase modulation.

14. The computer-readable medium of claim 11, wherein the frequency is varied using a scaling factor.

15. The computer-readable medium of claim 10, wherein the varied output parameter is a magnitude of the haptic effect signal, and the magnitude is varied using a Physically Inspired Stochastic Event Modeling algorithm.

16. The computer-readable medium of claim 10, wherein the input is an acceleration, and the sensor is an accelerometer.

17. The computer-readable medium of claim 10, wherein the actuator comprises a resonant actuator.

18. The computer-readable medium of claim 17, wherein the resonator actuator comprises one of a piezo actuator, an electroactive polymer actuator, or an electro-static actuator.

19. A haptically enabled system comprising:

a processor;

a storage device coupled to the processor and storing instructions;

an actuator coupled to the processor; and

a sensor coupled to the processor;

wherein the processor, in response to receiving a haptic effect primitive comprising a plurality of input parameters, and an input from the sensor;

generates a haptic effect signal from the haptic effect primitive, wherein the haptic effect signal comprises a plurality of output parameters, and at least one of the output parameters is varied based on the sensor input; and

applies the haptic effect signal to the actuator.

20. The system of claim 19, wherein the varied output parameter is a frequency of the haptic effect signal.

21. The system of claim 20, wherein the frequency is varied using frequency modulation.

22. The system of claim 20, wherein the frequency is varied using phase modulation.

23. The system of claim 20, wherein the frequency is varied using a scaling factor.

24. The system of claim 19, wherein the varied output parameter is a magnitude of the haptic effect signal, and the magnitude is varied using a Physically Inspired Stochastic Event Modeling algorithm.

25. The system of claim 19, wherein the input is an acceleration, and the sensor is an accelerometer.

26. The system of claim 19, wherein the actuator comprises a resonant actuator.

27. The system of claim 26, wherein the resonator actuator comprises one of a piezo actuator, an electroactive polymer actuator, or an electro-static actuator.