Systems and methods for adaptive interpretation of input from a touch-sensitive input device

• US 8,749,507 B2
• Filed: 04/06/2012
• Issued: 06/10/2014
• Est. Priority Date: 11/26/2003
• Status: Expired due to Term

• Current Assignee: Immersion Corporation
• Original Assignee: Immersion Corporation
• Inventors: DaCosta, Henry, Ramstein, Christophe, Grant, Danny
• Primary Examiner(s): Liang, Regina
• Application Number:
  US13/441,108
• Publication Number:
  US 20120194472A1
• Time in Patent Office: 795 Days
• Field of Search: 345/173, 345/174, 178/18.01, 178/18.03, 178/18.06, 715/701, 715/702
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment

Abstract

Systems and methods for adaptively interpreting a user'"'"'s intent based on parameters supplied by a touch-sensitive input device are described. In one of the methods described, a processor is programmed for receiving contact data from an input device; determining whether to output a haptic effect based on the contact data; and outputting the haptic effect based on the contact data.

Claims

1. A method comprising:

receiving contact data from an input device;

determining an interaction with a displayed object on a screen based on the contact data;

responsive to determining the interaction, determining a gesture based on the contact data comprising;

determining a pressure and a change in pressure based on the contact data, and

determining a press if;

the pressure is greater than a pressure threshold,

the change in pressure is greater than a change in pressure threshold, and

a first interval has elapsed; and

responsive to determining the gesture, outputting the haptic effect.

2. The method of claim 1, wherein the contact data comprises an actual pressure and a pseudo pressure.

3. The method of claim 2, wherein the pseudo pressure is based on a change in capacitance resulting from the contact.

4. The method of claim 3, wherein the contact data is based on a contact on a specific portion of a touch-sensitive input device.

5. The method of claim 4, wherein the contact information comprises position data, and further comprising determining whether a contact is made on a softkey based on the position data.

6. The method of claim 1, wherein the determining a gesture comprises determining a tapping gesture.

7. The method of claim 1, wherein determining the gesture further comprises:

calculating a first value associated with a speed of movement of a contact across the input device;

comparing the first value to a speed threshold value; and

outputting a signal if the first value is less than the speed threshold value.

8. The method of claim 7, further comprising applying a speed filter to the first value before comparing the speed to the speed threshold value.

9. A non-transitory computer-readable medium comprising program code for causing a processor to execute a method, the program code comprising:

program code for receiving contact data from an input device;

program code for determining an interaction with a displayed object on a screen based on the contact data;

program code for, responsive to determining the interaction, determining a gesture based on the contact data comprising;

program code for determining a pressure and a change in pressure based on the contact data, and

program code for determining a press if;

the pressure is greater than a pressure threshold,

the change in pressure is greater than a change in pressure threshold, and

a first interval has elapsed; and

program code for, responsive to determining the gesture, outputting the haptic effect.

10. The non-transitory computer-readable medium of claim 9, wherein the contact data comprises an actual pressure and a pseudo pressure.

11. The non-transitory computer-readable medium of claim 10, wherein the pseudo pressure is based on a change in capacitance resulting from the contact.

12. The non-transitory computer-readable medium of claim 11, wherein the contact data is based on a contact on a specific portion of a touch-sensitive input device.

13. The non-transitory computer-readable medium of claim 9, wherein the program code for determining a gesture comprises program code for determining a tapping gesture.

14. A system comprising:

a computer-readable medium; and

a processor in communication with the computer-readable medium, the processor configured to;

receive contact data from an input device;

determine an interaction with a displayed object on a screen based on the contact data;

responsive to determining the interaction, determine a gesture based on the contact data comprising;

determining a pressure and a change in pressure based on the contact data, and

determining a press if;

the pressure is greater than a pressure threshold,

the change in pressure is greater than a change in pressure threshold, and

a first interval has elapsed; and

responsive to determining the gesture, output the haptic effect.

15. The system of claim 14, wherein the contact data comprises an actual pressure and a pseudo pressure.

16. The system of claim 15, wherein the pseudo pressure is based on a change in capacitance resulting from the contact.

17. The system of claim 16, wherein the contact data is based on a contact on a specific portion of a touch-sensitive input device.

18. The system of claim 14, wherein the processor is configured to determine a gesture by determining a tapping gesture.