摘要:
Improvements in accurately sensing a user manipulandum of a force feedback device. A force feedback device, coupled to a host computer, includes an actuator for outputting forces on a manipulandum and a sensor for detecting a position of the manipulandum. In one feature, a raw sensor value representing manipulandum position is adjusted based on compliance between sensor and manipulandum, where the adjustment can be based on a compliance constant and an output force. In another feature, a range of motion of the manipulandum is dynamically calibrated from startup. One boundary value of an assigned initial range is set equal to a received sensor value if the sensor value is outside the initial range, and the other boundary value is adjusted to maintain the size of the initial range unless the other boundary value has already been sensed outside the initial range. In another feature, manipulandum position is accurately sensed by filtering raw sensor values for overshoot values occurring at limits to manipulandum motion and using the filtered value in the dynamic calibration. In another feature, sensing inaccuracies caused by compliance in the device are decreased by normalizing a raw sensor value to a normalized range of motion that includes a saturation zone at each end of the range that adjusts sensor values over a saturation level to the saturation level.
摘要:
A universal athleticism rating system and related athletic performance measuring systems for accurately detecting and recording athletic performance are disclosed. The athleticism rating system evaluates individual athletes against a common, standardized, set of athletic performance tests. Each athlete performs the athletic tests and his or her scores in the individual tests are entered into a standardized calculation to produce a single athletic performance score. The related performance measuring system is preferably a timing system that ensures quick, easy, and accurate collection of athletic event timing related data without the need for the athlete to wear any special detection devices or the like. In a preferred embodiment, the performance measuring system integrates with the rating system to provide seamless athletic data collection and rating of athletes.
摘要:
A hybrid haptic feedback system in which a host computer and haptic feedback device share processing loads to various degrees in the output of haptic sensations, and features for efficient output of haptic sensations in such a system. A haptic feedback interface device in communication with a host computer includes a device microcontroller outputting force values to the actuator to control output forces. In various embodiments, the microcontroller can determine force values for one type of force effect while receiving force values computed by the host computer for a different type of force effect. For example, the microcontroller can determine closed loop effect values and receive computed open loop effect values from the host; or the microcontroller can determine high frequency open loop effect values and receive low frequency open loop effect values from the host. Various features allow the host to efficiently stream computed force values to the device.
摘要:
The present invention provides haptic sensations for a haptic feedback device and especially for a rotational device such as a knob. Force effects such as a hill force effect and barrier force effect allow easier selection of menu items, menus, values, or other options by the user. Force models are also described to allow greater selection functionality, such as a scrolling list with detents and rate control borders, a jog shuttle, a push-turn model, a double-push model, and a cast control model.
摘要:
A method and apparatus for shaping force signals for a force feedback device. A source wave is provided and is defined by a set of control parameters (including a steady state magnitude, a frequency value and a duration value) and modified by a set of impulse parameters (including an impulse magnitude, and a settle time representing a time required for the impulse magnitude to change to the steady-state magnitude). Optionally, application parameters specifying a direction of force signal and trigger parameters specifying activating buttons can also be provided for the source wave. Using a host processor or a local processor, the force signal is formed from the source wave and the sets of control parameters and impulse parameters, where the force signal includes an impulse signal followed by a continual steady-state signal after an expiration of the settle time. A feel sensation is generated to a user of the force feedback device as physical forces produced by actuators on the force feedback device in response to the force signal. The steady-state magnitude value is lower than a magnitude value of a non-impulse-shaped force signal required to create a corresponding feel sensation having a similar apparent sensation to the user.
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:
A hybrid haptic feedback system in which a host computer and haptic feedback device share processing loads to various degrees in the output of haptic sensations, and features for efficient output of haptic sensations in such a system. A haptic feedback interface device in communication with a host computer includes a device microcontroller outputting force values to the actuator to control output forces. In various embodiments, the microcontroller can determine force values for one type of force effect while receiving force values computed by the host computer for a different type of force effect. For example, the microcontroller can determine closed loop effect values and receive computed open loop effect values from the host; or the microcontroller can determine high frequency open loop effect values and receive low frequency open loop effect values from the host. Various features allow the host to efficiently stream computed force values to the device.
摘要:
A universal athleticism rating system and related athletic performance measuring systems for accurately detecting and recording athletic performance are disclosed. The athleticism rating system evaluates individual athletes against a common, standardized, set of athletic performance tests. Each athlete performs the athletic tests and his or her scores in the individual tests are entered into a standardized calculation to produce a single athletic performance score. The related performance measuring system is preferably a timing system that ensures quick, easy, and accurate collection of athletic event timing related data without the need for the athlete to wear any special detection devices or the like. In a preferred embodiment, the performance measuring system integrates with the rating system to provide seamless athletic data collection and rating of athletes.
摘要:
A hybrid haptic feedback system in which a host computer and haptic feedback device share processing loads to various degrees in the output of haptic sensations, and features for efficient output of haptic sensations in such a system. A haptic feedback interface device in communication with a host computer includes a device microcontroller outputting force values to the actuator to control output forces. In various embodiments, the microcontroller can determine force values for one type of force effect while receiving force values computed by the host computer for a different type of force effect. For example, the microcontroller can determine closed loop effect values and receive computed open loop effect values from the host; or the microcontroller can determine high frequency open loop effect values and receive low frequency open loop effect values from the host. Various features allow the host to efficiently stream computed force values to the device.
摘要:
Methods and systems for textures and other spatial sensations for a relative haptic interface device are described. One embodiment includes a method comprising the steps of receiving a signal from a sensor, the sensor signal associated with a change in a position of a haptic feedback device, transmitting sensor data to a host processor, the sensor data associated with the sensor signal, receiving force information from the host processor, the force information comprising a texture sensation having at least one parameter describing at least one force to be output based at least in part on an interaction of a graphical object with a texture field, the force information further comprising at least one characteristic of the texture sensation, parsing the force information, storing the at least one characteristic, and determining when to output the at least one force based at least in part on the interaction.