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1. 发明申请

WO2022240523A1 ACTIVE CONTROL AND CALIBRATION OF HAPTIC TRACKPAD 审中-公开
公开(公告)号：WO2022240523A1
公开(公告)日：2022-11-17
申请号：PCT/US2022/024177
申请日：2022-04-11
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： ZHAO, Tianyu , DETAMO, Anteneh
IPC分类号： G06F3/01 , G06F3/0354 , G06F3/038 , G06F3/016 , G06F3/03547 , G06F3/0383
摘要： Variations in the manufacturing, tolerances, and environmental conditions, for example, of haptic trackpads can cause mechanical properties to vary click-by-click and unit-by-unit. Also, as time goes, mechanical wear or material degradation within each trackpad may change its mechanical properties. All of which may cause the haptic response received by the user to vary across similarly designed trackpads, and also change over time on the same trackpad. This may be interpreted by the user as an indication of low product quality. The following describes in detail haptic trackpads including accelerometers that enable active control and/or calibration. This allows for a more uniform user experience across a manufacturing run of trackpads and/or throughout the projected life of individual trackpads. It is disclosed a trackpad comprising: a printed circuit board (PCB) including a touch interface; a haptic element fixedly attached to the PCB to selectively oscillate the PCB; an accelerometer fixedly attached to the PCB to measure peak-to-peak acceleration of the oscillation of the PCB; and a microcontroller to: compare the measured peak-to-peak acceleration with a target peak-to-peak acceleration of the oscillation of the PCB; and adjust an output of the haptic element to change the measured peak-to-peak acceleration to match the target peak-to-peak acceleration of the oscillation of the PCB.

2. 发明申请

WO2022271330A1 COMPUTING DEVICE WITH HAPTIC TRACKPAD 审中-公开
公开(公告)号：WO2022271330A1
公开(公告)日：2022-12-29
申请号：PCT/US2022/029520
申请日：2022-05-17
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： ZHAO, Tianyu , DETAMO, Anteneh , DONAHUE, Colin Roman , LONGO, Thomas Joseph
IPC分类号： G06F3/01 , G06F3/0354 , G06F3/0488 , G06F1/3231 , G06F1/16 , G06F1/1616 , G06F1/1643 , G06F1/1658 , G06F1/1662 , G06F1/1684 , G06F1/169 , G06F2203/0338 , G06F3/016 , G06F3/03547 , G06F3/041662
摘要： Computing devices and methods for producing vibrations in computing devices are disclosed. In one example, a computing device comprises a chassis that includes a trackpad comprising a printed circuit board. A haptic actuator assembly comprises at least one conductive coil formed on or affixed to the printed circuit board, and at least one magnet rigidly affixed to the chassis. The magnet is spaced from and not mechanically coupled to the at least one conductive coil. A memory stores instructions executable by a processor to receive a haptic event requests, determine that the trackpad is not in use, and at least on condition of receiving the haptic event request and determining that the trackpad is not in use, cause a driver signal to be sent to the conductive coil(s) to cause the at least one magnet to produce user-perceptible vibrations in the chassis beyond the trackpad.

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