摘要:
Systems and methods for controlling a resonant device are described. One described method for braking an actuator includes generating a first actuator signal configured to drive the actuator, the first actuator signal having a first frequency approximately resonant to the actuator, and transmitting the first actuator signal to the actuator. The method also includes generating a second actuator signal, having a second frequency approximately 180 degrees out of phase to the first frequency, the second actuator signal configured to cause a braking force on the actuator, and transmitting the second actuator signal to the actuator.
摘要:
A method of generating haptic effects on a device includes detecting the presence of an object near an input area of the device and generating a haptic effect on the device in response to the presence detection.
摘要:
A haptic feedback system that includes a controller, a memory coupled to the controller, an actuator drive circuit coupled to the controller, and an actuator coupled to the actuator drive circuit. The memory stores at least one haptic effect that is executed by the controller in order to create a haptic effect.
摘要:
A method of testing a haptic device that includes an actuator and has a first weight includes placing the haptic device on a test fixture that has a second weight that is greater than the first weight. The haptic device is placed on the test fixture so that the actuator within the haptic device is substantially close to the center of gravity of the test fixture. The method further includes causing the haptic device to generate haptic effects via the actuator, and measuring the acceleration of the test fixture during the haptic effects.
摘要:
An apparatus includes a sensor configured to be coupled to a throttle interface. The sensor is configured to output a sensor signal associated with a condition of the throttle interface. A first brake element has a first friction surface and a second brake element has a second friction surface. The second brake element is configured to be coupled to the throttle interface. The friction surface associated with the first brake element is positioned opposite the friction surface associated with the second brake element. The first brake element is configured to move relative to the second brake element. An actuator is coupled to the first brake element and is configured to output haptic feedback to the throttle interface via the first brake element based on the sensor signal.
摘要:
A planar touch control is used to provide input to a computer and haptic feedback is provided thereto. A touch control includes a touch input device with a planar touch surface that inputs a position signal to a processor associated with the computer based on a location of user implemented contact on the touch surface. The computer can position or modify a cursor or image in a displayed graphical environment based at least in part on the position signal, or perform a different function. At least one actuator is also coupled to the touch input device and outputs a force to provide a haptic sensation to the user via the touch surface.
摘要:
A system for providing realistic sensation within a simulation system by providing tactile (haptic) feedback to a user. The system includes an engageable practice tool that the user engages and a mechanical simulation apparatus coupled to the practice tool. The mechanical simulation apparatus includes a ground member, a mechanical linkage rotatably coupled to the ground member, a linear axis member coupled to the practice tool and the mechanical linkage, at least four actuators coupled to the ground member, sensors for sensing movement of the actuators, and at least three cables in contact with the at least four actuators and coupled to the mechanical linkage. An interface device is coupled to the simulation apparatus and a host computer is coupled to the interface device for implementing an application program. The application program provides signals for the actuators to move the cables and thereby move the mechanical linkage.
摘要:
Positional sensors receive light that has been reflected off a pair of complementary geometric patterns carried by a supporting, displaceable carrier surface. The sensors view the patterns through viewing windows as the carrier surface is displaced laterally, presenting differing portions of the patterns to the sensors. The patterns are shaped to produce outputs which, when their difference value is extracted, provide output signals that are a measure of the displacement of the carrier surface and in which common mode errors are minimized.
摘要:
Products and processes for providing haptic feedback in a user interface device are disclosed. In one exemplary embodiment, a process comprises defining a first cell, mapping a first location of a matrix with the defined first cell, and mapping a second location of the matrix with the defined first cell. The first cell comprises a first parameter representing a first haptic effect.
摘要:
Systems and methods for providing haptic feedback at multiple resonance frequencies are disclosed. For example, one disclosed apparatus includes a resonator with a base and a plurality of projections, a first projection of the plurality of projections having a first resonance frequency and a second projection of the plurality of projections having a second resonance frequency, and a piezoelectric actuator coupled to the resonator and operable to output a haptic feedback effect at the first resonance frequency and at the second resonance frequency.