Methods and devices for consistency of the haptic response across a touch sensitive device

摘要

Disclosed are methods and touch sensitive devices including a haptic actuator drive frequency module stored by the memory and in communication with the controller, the haptic actuator drive frequency module being configured to receive touch input from one of a plurality of regions of the touch sensitive layer and to output one of a plurality of haptic actuator drive frequency signals based upon the region from which the haptic actuator drive frequency module received the touch input to provide for consistency of the haptic response across a touch sensitive device.

主权项

1. A method comprising:
receiving touch input to a first region of a surface of a touch sensitive device; selecting, in response to receiving the touch input to the first region, a first set of drive frequency values; outputting one or more first drive frequency signals, at frequencies based on the first set of drive frequency values, to respective one or more first haptic actuators included in a plurality of haptic actuators coupled to the surface of the touch sensitive device, the one or more first haptic actuators being located in proximity to the first region; receiving touch input to a second region of the touch sensitive device; selecting, in response to receiving the touch input to the second region, a second set of drive frequency values; and outputting one or more second drive frequency signals, at frequencies based on the second set of drive frequency values, to respective one or more second haptic actuators included in the plurality of haptic actuators coupled to the surface of the touch sensitive device, the one or more second haptic actuators being located in proximity to the second region,
wherein a first natural frequency response and a first mode shape for the touch sensitive device are associated with the first region, and are results of performing a first modal analysis of the surface of the touch sensitive device,wherein a second natural frequency response and a second mode shape for the touch sensitive device are associated with the second region, and are results of performing a second modal analysis of the surface of the touch sensitive device,wherein the first set of drive frequency values are determined based on the results of the first modal analysis, and are computationally derived in order to provide a substantially same haptic response at the first region and at the second region, andwherein the second set of drive frequency values are determined based on the results of the second modal analysis, and are computationally derived in order to provide a substantially same haptic response at the first region and at the second region.