A touch sensing device, applicable to an electric device including a touch member integrated with a housing, includes an inductor element spaced apart from an internal side surface of the touch member, a support member attached to an internal side surface of the housing or the touch member to support the inductor element disposed thereon, a substrate on which the inductor element is mounted, the substrate being disposed on the support member, and a circuit part connected to the inductor element and configured to detect a touch input and a touch-force input in response to different frequency change characteristics depending on the touch input and the touch-force input through the touch member.

An electronic switch with force feedback function includes a base, an actuating component and a. The actuating component is movably connected to the base, and includes a. The magnetic field generating module is disposed on the base, and provides a magnetic repulsive force to the magnetic unit for force feedback while the actuating component moves close to the base.

Disclosed is a device for detecting intention to lock or unlock a door of a motor vehicle, the device including at least a first inductive sensor, including a first target, an oscillating circuit including a coil, a unit measuring a resonant frequency of the circuit, and a printed circuit. The device includes a second inductive sensor including: a second target in the form of a loop, such that a first end of the loop is connected to a fixed potential, and a second end of the loop is connected to a switch having two states, in a first state, the second end of the loop is connected to the fixed potential, in a second state, the second end of the loop is connected to a floating potential; and a controller for the switch. The coil of the first inductive sensor is common to the second inductive sensor.

A calibration system for induction keys includes a signal source and a computing device. The signal source is configured to generate a low frequency (LF) signal and a magnetic field signal at intervals. The computing device is configured to receive the magnetic field signal transmitted by an induction key when the induction key senses the LF signal. The computing device is configured to obtain a magnetic field strength from the magnetic field signal, and then comparing the magnetic field strength with a pre-stored standard strength of the magnetic field to achieve an offset. The computing device sends the offset value to the induction key and enables the induction key to get a calibrated strength value of the magnetic field according to the offset value. This disclosure further provided an induction key and a calibration method.

An operation detection device for a key operation of a keyboard device includes a conductive unit configured to be disposed on each of keys, a substrate configured to be disposed facing each of the keys in a pressing direction of the keys. The substrate is provided with a sensor including at least first and second coils, the sensor being configured to be disposed spaced from one key so that at least one of the first or second coil outputs a signal corresponding to a distance between the one key and the respective sensor. The operation detection device includes a detection unit configured to detect a displacement of the one key in at least one of a yaw direction or a roll direction based on signals output from the first and second coils during a key pressing stroke of the one key.

An apparatus for processing rotor movement information includes a processor configured to: receive movement information of a rotor disposed on one surface of an electronic device and having a rotation axis formed in a direction of the electronic device; receive touch information of a sensor configured to sense a touch on another surface of the electronic device; and produce operating information of the electronic device based on the movement information of the rotor. The operating information of the electronic device has variable correlation of the operating information to the movement information, in accordance with the touch information.

A method of generating an operating signal of an electronic device includes: deriving a force measurement value based on a change in inductance of a touch sensing device disposed inside a housing of the electronic device and configured to change inductance by external pressure applied to a touch switching unit of the housing; accumulatively recording the force measurement value derived in the deriving of the force measurement value; setting a reference value based on the recorded force measurement value, in response to the force measurement value being accumulatively recorded until a unit condition is satisfied; and generating an operating signal based on a high and low relationship between the force measurement value derived from the change in inductance occurring after the setting of the reference value, and the set reference value.

A touch sensing device includes: a first touch sensing unit including a first sensing electrode and a first sensing inductor electrically connected to each other, wherein capacitance of the first touch sensing unit varies depending on parasitic capacitance formed between the first sensing electrode and a human body according to a contact of the human body; a first force sensing unit including a first sensing coil spaced apart from an internal side surface of a frame, wherein inductance of the first force sensing unit varies depending on a change in distance between the first sensing coil and the frame according to a pressing touch; and a circuit unit configured to detect whether a touch of the human body is input, based on variations in the capacitance of the first touch sensing unit and variations in the inductance with the force sensing unit.

A touch sensing device configured to be installed in an electronic device, the electronic device including a side unit and a touch switch unit, the side unit including a non-conductive cover and a conductive frame coupled to the cover, the touch switch unit including a first touch member that is a portion of the cover, the touch sensing device including a first sensing electrode configured to be disposed inside the electronic device near the first touch member; a first sensing coil configured to be disposed inside the electronic device; and a first connection wire including one end connected to the first sensing electrode and another end connected to the first sensing coil, thereby electrically connecting the first sensing electrode to the first sensing coil.

In one aspect, an apparatus for receiving input and/or generating output comprises a key assembly. The key assembly comprises a key cover, a magnet, and an electromagnet. The magnet is coupled to the key cover. The electromagnet is operable to displace the key cover based on whether the key assembly is in an active state or an inactive state. In the active state, the electromagnet is operable to raise the key cover to a first position based on generation of a magnetic field. In the inactive state, the electromagnet is operable to lower the key cover to a second position based on cessation of the magnetic field.