Microsoft Technology Licensing, LLC

Assaf Bar-Ness

Shoham Dekel

Uri Ron

Orr Srour

Vadim Mishalov

Examples are disclosed that relate to applying haptic output to a touch-sensitive input device. One example provides a touch-sensitive input device comprising a body, a haptic feedback mechanism within the body, a sensor subsystem, a logic processor, and a memory. The memory stores instructions executable by the processor to receive from the sensor subsystem sensor data indicating locations along the body of a plurality of contact points between a user hand and the body, based at least in part on the sensor data, determine a touch profile of the user hand applied to the body, based at least in part on the touch profile of the user hand, determine a selected haptic output to be applied to the body, and cause a drive signal to be transmitted to the haptic feedback mechanism to apply the selected haptic output to the body.

Touch-sensitive input device with haptic feedback mechanism

Examples relate to managing power consumption of a stylus haptic feedback component prior to actuation. In one example, power is transmitted to a haptic circuit and a first haptic predicter value corresponding to a first user interaction with the stylus is determined. A weighted first haptic predicter value is generated by weighting the first haptic predicter value. A second haptic predicter value corresponding to a second user interaction is determined, and a weighted second haptic predicter value is generated by weighting the second haptic predicter value. At least the weighted first and second haptic predicter values are combined to generate a combined weighted predictive result, which is compared to a haptic predictive threshold value. On condition that such comparison yields a haptic predictive result, power continues transmitting to the haptic circuit. On condition that such comparison yields a non-haptic-predictive result, power ceases transmitting to the haptic circuit.

Stylus haptic component arming and power consumption

Systems, methods, and instrumentalities are described herein related to a secured stylus. A secure connection is established between a digitizer processor in a computing device and a remote server providing virtual desktop infrastructure (VDI). A digitizer interposer implemented in the computing device, the server, and/or between them receives raw or encrypted digitizer input that bypasses the operating system (OS) and processor of the computing device. Digitizer signal processing, normally performed by the OS, is performed on one or more servers. An edge server provides haptic feedback to a stylus and/or generates display of temporary digital ink as created while a cloud server completes digital ink processing and generates video for display by the computing device. A secure connection between a graphics processing unit (GPU) and the server protects secure connection video by encryption bypassing the OS and processor of the user computing device.

Interposer for secure inking by stylus

A computing device detects an indication of a data-linkable context for the electronic stylus and transitions communication between the digitizer of the computing device and the electronic stylus from a user interface mode to a data link mode, based at least in part on the detecting. The computing device communicates between the electronic stylus and the digitizer in the data link mode via the multiple electrostatic antennas of the electronic stylus, based at least in part on the transitioning.

Contextual data link mode stylus communications

Examples are disclosed relating to providing haptic feedback in a stylus while the stylus crosses a gap between two displays. In one example, a method comprises detecting one or more haptic triggering criteria, and at least on condition of detecting the one or more haptic triggering criteria, actuating the haptic feedback component to produce haptic output. Using a width of the gap between the displays, a stylus velocity, and a stylus direction, a crossing time for the stylus tip to cross the gap is calculated. At a first time after actuating the haptic feedback component, the method determines that the stylus tip crosses an inside edge of one of the displays. At least on condition of determining that the tip of the stylus crosses an inside edge of a display, the method continues to actuate the haptic feedback component for the crossing time.

Stylus haptic component

Examples are disclosed relating to providing haptic output to a stylus. In one example, rotational position data indicating a rotational position of the stylus about a longitudinal axis of the body of the stylus is received. Travel direction data indicating a direction of travel of a tip of the stylus relative to a touch-sensitive screen of a computing device is also received. Using at least the rotational position data and the travel direction data, one or more characteristics of a drive signal are determined. The drive signal is then transmitted to a haptic feedback mechanism within the body of the stylus to generate haptic output at the body.

Stylus haptic output

A method of providing haptic feedback includes collecting 3D motion data at a handheld computing accessory; analyzing the collected 3D motion data to infer a grip characteristic indicating an aspect of a user grip on the handheld computing accessory; selecting an amplitude for a haptic feedback waveform based on the inferred grip characteristic; and generating, at the handheld computing accessory, haptic feedback according to the selected amplitude.

Haptic feedback from a computing accessory

Examples are disclosed relating to arming and managing power consumption of a haptic feedback component in a stylus prior to actuating the haptic feedback component to produce haptic output. In one example, at least on condition of detecting a first user interaction with the stylus, power is transmitted for at least a first time period to a haptic circuit communicatively coupled to the haptic feedback component. At least on condition of determining that the first time period expires, it is determined if a second user interaction with the stylus is detected. If the second user interaction is detected, the stylus continues transmitting power to the haptic circuit. If the second user interaction is not detected, the stylus ceases transmitting power to the haptic circuit.

Examples are disclosed relating to providing haptic feedback in a stylus while the stylus crosses a gap between two displays. In one example, a method comprises detecting one or more haptic triggering criteria, and at least on condition of detecting the one or more haptic triggering criteria, actuating the haptic feedback component to produce haptic output. A width of the gap between the displays is determined, and a crossing time for a tip of the stylus to cross the gap is calculated using the width of the gap, a stylus velocity, and a stylus direction. At a first time after actuating the haptic feedback component, the method determines that the one or more haptic triggering criteria are not detected. At least on condition of determining that the one or more haptic triggering criteria are not detected, the method continues to actuate the haptic feedback component for the crossing time.

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Ness Zionna, Israel

Assaf Bar-Ness