Control schemes for haptic feedback interface devices

• US 20080073131A1
• Filed: 10/30/2007
• Published: 03/27/2008
• Est. Priority Date: 12/30/2003
• Status: Active Grant

• Current Assignee: Immersion Corporation
• Original Assignee: Immersion Corporation
• Inventors: Grant, Danny, Gomez, Daniel, Goldenberg, Alex, Cruz-Hernandez, Juan
• Granted Patent: US 8,519,948 B2
• Time in Patent Office: Days
• US Class Current: 178/18.05
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user

Abstract

A method is disclosed that includes outputting haptic feedback based on a movement of an object in a first direction from a first position to a second position. The haptic feedback is discontinued when the object is moved in a second direction opposite the first direction subsequent to the movement in the first direction. The haptic feedback is output again when the object moves past the second position in the first direction.

Claims

1. A resistive and active actuator device, comprising:

an active actuator configured to be coupled to an object;

a resistive actuator configured to be coupled to the object; and

a filter configured to output a first filtered signal associated with the active actuator and a second filtered signal associated with the resistive actuator, the first filtered signal and the second filtered signal being different from one another.

2. A method of outputting haptic effects from a knob, comprising:

sensing movement of a rotatable knob in a first and second direction, wherein the knob is moveable to a plurality of positions;

outputting haptic feedback based on a movement of the knob in the first direction from a first position to a second position, the haptic feedback being discontinued when the knob is moved in the second direction opposite the first direction subsequent to the movement in the first direction; and

outputting the haptic feedback when the knob moves past the second position in the first direction, wherein the haptic feedback changes in magnitude based on a velocity of sensed movement.

3. A method, comprising:

outputting via a sensor a signal associated with an active actuator;

outputting via the sensor a signal associated with a resistive actuator;

filtering the signal associated with the active actuator using a first filter to produce a first filtered signal;

filtering the signal associated with the resistive actuator using a second filter to produce a second filtered signal; and

outputting haptic feedback based on at least one of the first filtered signal or the second filtered signal.

4. A method, comprising:

applying to an actuator of an interface device a first voltage having a polarity, the actuator being configured to simulate a detent in response to the first voltage; and

applying to the actuator a second voltage having a polarity opposite the polarity of the first voltage, the first voltage and the second voltage collectively operative to demagnetize the interface device

5. A method of outputting haptic detents, comprising:

receiving a signal associated with a movement of an object from a first position associated with a detent to a second position associated with the detent, the detent having a center position;

outputting a resistive force on the object based on the signal, the resistive force operative to simulate the detent; and

defining the second position associated with the detent as the center position of the detent.