A control device relates to a vehicle having an automatically opening and/or automatically closing lid with at least one control switch in the vicinity of the lid and with a programmable electronic control unit. The control switch may be operated arbitrarily contactlessly in the form of a proximity sensor and when operated generates an operation request signal which is an input signal to the control unit. The control unit is configured in such a manner that defined environmental conditions may be evaluated for the detection of a risk of salinity and humidity and that, given the presence of a risk of salt and water, an appropriate adaptation may be made to the evaluation of the operation request signal. Preferably, at least one outside temperature below a predefined threshold and information indicating the presence of moisture are defined as the environmental conditions to be evaluated for detecting the risk of salt and water.

A method for switching a screen state, a terminal, and computer-readable medium are provided. The method includes: transmitting a transmission sound wave when it is detected that the screen state of the terminal is in a light-on state during a voice communication session, the transmission sound wave being a sound wave of a pre-defined frequency; determining a target detection region when a target receiving sound wave is received through a plurality of pre-installed sound wave receiving devices, the target receiving sound wave being formed by reflecting the transmission sound wave by a target object; and switching the screen state of the terminal from the light-on state into a light-off state when it is determined that the target object is located in the target detection region.

An optical proximity sensor system to detect a distance to a target object is provided. The optical proximity sensor system includes a laser that generates an emitted optical beam at a linear polarization and an optical cavity system that includes an optical cavity defined by a distance between the laser and the target object. The target object reflects the emitted optical beam to generate a reflected optical beam. A partially reflective mirror diverts a portion of the emitted optical beam and/or the reflected optical beam. A photodetector receives the diverted optical beam and generates a proximity signal that has a frequency that is indicative of the distance to the target object based on the diverted portion of the at least one of the emitted optical beam and the reflected optical beam. A proximity processor calculates the distance to the target object based on the frequency of the proximity signal.

A device for detecting an object with respect to a detection surface including: a measurement electrode; at least one guard electrode, at the same alternating potential as the measurement electrode; at least one module for measuring a first signal with respect to the capacitance (C.sub.eo), called electrode-object capacitance, formed between said measurement electrode and said object; and
at least one electrode, called polarization electrode, placed opposite the object, and polarized at the ground potential (G) so as to polarize the object by capacitive coupling.

The present invention relates to a proximity sensor and a proximity sensing method. The proximity sensor includes a sensing element and a sensing circuit. The sensing circuit is coupled to the sensing element and transmits a first driving signal and a second signal to the sensing element, respectively. The sensing element receives the first driving signal and the second driving signal, respectively, and generates a first sensing signal and a second sensing signal, respectively. The sensing circuit generates a proximity signal according to the first sensing signal and the second sensing signal. Therefore, the present invention may improve the accuracy of sensing the proximity of the human body whether near to the sensor. In addition, the sensing circuit is further coupled to a radio-frequency circuit, and the sensing circuit transmits a driving signal or/and receives a sensing signal according to the state of the radio-frequency circuit, thereby reducing interference of the sensing circuit to the radio-frequency circuit.

A multi-value selection switch that includes an engagement surface with an integrated touch sensor. The integrated touch sensor includes a plurality of detectable positions that correspond to, for instance, a range of absolute or relative target input values between a predefined minimum and maximum. The engagement surface further defines a switch that actuates/activates based on detecting a user-supplied force and/or based on a user momentarily holding a finger/pointer position. A user can select a target input value by bringing a finger or other pointer within operable proximity of an associated detectable position and actuating the switch and/or momentarily pausing. In response, the selection switch outputs a control signal to an associated device to cause the same to adjust operation.

A multi-value selection switch that includes an engagement surface with an integrated touch sensor. The integrated touch sensor includes a plurality of detectable positions that correspond to, for instance, a range of absolute or relative target input values between a predefined minimum and maximum. The engagement surface further defines a switch that actuates/activates based on detecting a user-supplied force and/or based on a user momentarily holding a finger/pointer position. A user can select a target input value by bringing a finger or other pointer within operable proximity of an associated detectable position and actuating the switch and/or momentarily pausing. In response, the selection switch outputs a control signal to an associated device to cause the same to adjust operation.

A contactless button structure includes a frame body with indicating key surfaces on one side thereof and an isolation space on an opposite side thereof, and a driving unit installed in the isolation space. The driving unit includes a plurality of sensing devices respectively installed on the back side of each indicating key surface and a control unit that receives the electronic signal of each sensing device. The control unit includes a plurality of trigger devices corresponding to the sensing devices respectively. Each trigger device has a retractable trigger rod. The contactless button structure can be installed outside the control key surface of the equipment (such as elevators, etc.) in the building, and the user's finger can approach any indicating key surface of the frame body of the button structure to achieve the purpose of non-contact touch control buttons. it can protect against contact infectious germs,

A contactless button structure includes a frame body with indicating key surfaces on one side thereof and an isolation space on an opposite side thereof, and a driving unit installed in the isolation space. The driving unit includes a plurality of sensing devices respectively installed on the back side of each indicating key surface and a control unit that receives the electronic signal of each sensing device. The control unit includes a plurality of trigger devices corresponding to the sensing devices respectively. Each trigger device has a retractable trigger rod. The contactless button structure can be installed outside the control key surface of the equipment (such as elevators, etc.) in the building, and the user's finger can approach any indicating key surface of the frame body of the button structure to achieve the purpose of non-contact touch control buttons. it can protect against contact infectious germs,

A proximity sensor with integrated control features includes a sensing circuit that detects a target feature in proximity thereto and generates a sensor signal responsive to detection of the target feature, an interface circuit that receives inputs from an external device and conditions the inputs to provide digital logic outputs, output electronics that selectively provide actuation signals for driving a load operatively connected to the proximity sensor, and a microcontroller unit in communication with the sensing circuit, the interface circuit, and the output electronics. The microcontroller unit receives sensor signals and digital logic outputs from the sensing circuit and the interface circuit, samples the sensor signals and digital logic outputs, and selectively provides activation signals to the output electronics based on the state of the digital logic outputs and/or the sensor signals, wherein the activation signals cause the output electronics to output the actuation signals to drive the load.