An apparatus is described which it a flexible touch panel (21). The flexible touch panel (21) includes a layer of piezoelectric material (9) arranged between a number of first electrodes (7, 8) and at least one second electrode (8,14). The apparatus also includes a device (3) connected to the first electrodes (7, 8) and configured to determine one or more radii of curvature (R.sub.1, R.sub.2) of the flexible touch panel (21) based on signals received from one or more of the first electrodes (7, 8).

A wearable computing device includes a display, a motion sensor, and a controller that: defines a pose of a simulated input object with selectable input elements; using the motion sensor, determines current poses of the display, and for each pose: (i) based on the pose and the pose of the input object, selects a portion of the input object, including a subset of the input elements, and (ii) renders the portion of the input object on the display; for at least one of the current poses, detects a simulated key press associated with one of the subset of input elements, and generates input data corresponding to the one of the subset of input elements. The device includes a housing containing the display, the motion sensor, and the controller; and a mounting component, coupled to the housing and configured to removably affix the housing to a forearm of an operator.

Implementations include methods of controlling a haptic response comprising receiving a force signal from a force sensor; determining a force magnitude associated with the force signal; comparing the force magnitude with an initial threshold force amount to determine whether the force magnitude exceeds the initial threshold force amount; measuring an elapsed time that the force magnitude exceeds the initial threshold force amount; comparing the elapsed time to a minimum elapsed time; if the elapsed time being greater than the minimum elapsed time, generating a haptic feedback control signal, the haptic feedback control signal causing a haptic actuator to propagate a plurality of pressure waves at a propagation frequency, the propagation frequency being proportional to the force magnitude; and generating a scroll control signal that causes a menu system to scroll through a plurality of menu options provided by the menu system at a scroll frequency associated with the propagation frequency.

In accordance with some embodiments, a method is performed at an electronic device with a display, an input region that is distinct from the display, and one or more tactile output generators for generating tactile outputs. The method includes: detecting a press input on the input region with a finger; and in response to detecting the press input on the input region: in accordance with a determination that the input region is not separated from the finger by an interstitial material, generating a first tactile output; and in accordance with a determination that the input region is separated from the finger by a first interstitial material, generating a second tactile output that is different from the first tactile output.

A touch sensor comprises a first electrode, a second electrode arranged spaced apart from the first electrode, and an insulator arranged between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode is energized, and an energy difference exists between the first electrode and the second electrode. At least one of the first electrode and the second electrode is a stressed electrode. When the stressed electrode is not stressed, no electrical signal is generated, and when the stressed electrode is stressed, the stressed electrode deforms at a stressed point and changes the distance between the stressed point and the other electrode to generate a tunneling current, and the touch sensor generates the electrical signal according to whether the tunneling current is generated. Therefore, the invention solves a limitation of the conventional touch sensor in touching and provides good touching sensitivity.

A pressure detection structure and an electronic device are provided that improve sensitivity and accuracy of pressure detection. The pressure detection structure includes: N piezo-resistors connected at the first dielectric layer to form a Wheatstone bridge, where an opening of a first cavity is provided on the first surface of the substrate. The two ends, in a first direction, of the vertical projection of a first piezo-resistor among the N piezo-resistors on a contact surface between the N piezo-resistors and the first dielectric layer are located respectively on the two sides, in the first direction, of the vertical projection of the first cavity on the contact surface. The long side of a second piezo-resistor among the N piezo-resistors is perpendicular to the first direction, and the vertical projection of the second piezo-resistor on the contact surface does not overlap with the vertical projection of the first cavity.

A pressing sensor is provided that generates an output voltage of a first polarity by deforming with an operation plate when a part of a user's body touches the operation plate, and generates the output voltage of a second polarity by deforming with the operation plate when the part of the user's body is moved away from the operation plate. Moreover, a calculation unit calculates an electrical parameter integral value by time-integrating an electrical parameter that changes with the output voltage generated by the pressing sensor. The electrical parameter has a third polarity when the output voltage has the first polarity and has a fourth polarity when the output voltage has the second polarity. The calculation unit calculates a subtraction electrical parameter integral value obtained by subtracting a predetermined value having the third polarity per unit time from the electrical parameter integral value.

A gesture detection system comprising a virtual button structure for mounting in an outer frame of a mobile device for detecting finger gestures by a user. First and second piezo-electric actuators are in contact with the virtual button structure, and configured to generate first and second varying electrical signals, respectively in response to a dynamic force application to the virtual button structure. A processor is configured to execute instructions stored in memory to i) determine a magnitude and a position of the dynamic force application on the virtual button structure over time, based on the first varying electrical signal and the second varying electrical signal, ii) determine a gesture corresponding to the magnitude and the position of the dynamic force application over time; and iii) provide a response signal based on the gesture.

A display device includes a first display configured to display a plurality of objects, and a touch panel overlapped with the first display in a plan view. The touch panel includes a pressing force sensor configured to detect a pressing force in each of the plurality of objects. The display device controls display of a second display in accordance with a function of an object with a pressing force detected, among the plurality of objects.

An apparatus comprises, a user interface surface, sensor circuitry, and logic circuitry. The sensor circuitry to detect a palm-based touch event caused by a user's hand relative to the user interface surface to indicate a degree of coarseness for a graphics change, and detect a digit-based touch event caused by a digit of the user's hand relative to the user interface surface. The logic circuitry to, in response to the touch events indicating the palm is in a fixed position and a position of the digit, provide data associated with the graphics change.