A keyboard device includes plural keys, a control unit and a membrane switch circuit member. The membrane switch circuit member includes a first upper key switch and a first lower key switch. When the first upper key switch is triggered by the first key, a first key code corresponding to the first key is generated by the first upper key switch. When the first lower key switch is triggered by the first key, a second key code corresponding to the first key is generated by the first lower key switch. The control unit is connected with the membrane switch circuit member. If both of the first key code and the second key code are received by the control unit, a key signal is outputted. If either the first key code or the second key code is received by the control unit, the key signal is not outputted.

A control device configured for use in a load control system to control one or more electrical loads external to the control device may include an antenna and an actuation member having a front surface defining a touch sensitive surface configured to detect a touch actuation along at least a portion of the front surface. The control device may include a main printed circuit board (PCB) comprising a control circuit, an antenna PCB connected to the main PCB, a tactile switch(es), a controllably conductive device, and a drive circuit operatively coupled to a control input of the controllably conductive device for rendering the controllably conductive device conductive or non-conductive to control the amount of power delivered to the electrical load. The antenna may extend substantially perpendicular from the main PCB through an opening in the yoke and into a cavity defined by the actuation member and the yoke.

A key structure is provided, including a key housing, a keycap, an elastic piece and a spring. The key housing comprises an interfering portion. The keycap is movably assembled to the key housing along a pressing axial direction. The elastic piece is movably assembled to the keycap along the pressing axial direction. The elastic piece comprises a protrusion, and the interfering portion is located on a movement path of the protrusion. The spring abuts between the keycap and the elastic piece. When in an initial position, the protrusion is stopped at the interfering portion. When an external force is applied to the keycap, in a pressing process, the keycap is moved relative to the key housing, and drives the protrusion to surmount and cross over the interfering portion. An elastic restoring force of the elastic piece causes the protrusion to hit the interfering portion to make a sound.

A magnetic press key includes a housing and a central shaft body disposed in the housing, wherein the bottom of the central shaft body is extended into the housing, and the central shaft body can reciprocate in the vertical direction in a base after the key cap seat is pressed, a first magnetic element is provided on the upper section of the central shaft body, a second magnetic element which can move up and down is provided under the coaxiality of the first magnetic element, and a third magnetic element is provided in the housing. The first magnetic element and the second magnetic element generate repulsive or attractive magnetic force, and the magnitude of the repulsive or attractive magnetic force can be adjusted by changing the magnitude of the energizing current of the energized coil, so that the use hand feeling of the key cap seat is improved.

The present disclosure provides an intelligent lighting control system for temporarily opening a circuit in the system. The lighting control system includes a light switch module including a switch control circuit. The switch control circuit includes a processor configured to modulate the flow of electrical energy to the lighting circuit via a dimmer circuit to produce a plurality of lighting scenes by varying the illumination of the light bulb. The processor is, in response to receipt of a control command to discontinue illumination of the light bulb, configured to cause, for a first pre-specified period of time, the amperage of the current flowing from an alternating current power supply to the power circuit to be reduced, and open, for the first pre-specified period of time, the electrical connection between the switch control circuit and an electrical connector.

The present invention provides a micro tactility-simulating sensing device, including: a chip including a first top surface and a first inductor, wherein the first top surface has wiring through holes configured to allow an external circuit to connect to the first inductor, and the first top surface is a flat surface except the wiring through holes; a magnetic rigid body coupled with the first inductor to allow the first inductor to sense a magnetic flux passing therethrough, and configured to receive a tactile load; and a polymer configured between the chip and the magnetic rigid body to have a characteristic distance therebetween, wherein the characteristic distance and the magnetic flux have a functional relationship. The micro tactility-simulating sensing device of the present invention can effectively increase the magnitude of the measured signal and provide two different ways to read the signal.

A sliding mechanism includes a first member, a second member harder than the first member and a plurality of particulate third members sandwiched between the first member and the second member and disposed to be slidable on the second member. The sliding mechanism is applicable to a keyboard apparatus. In particular, the sliding mechanism is applicable to a portion that slides according to a depression of a key in the keyboard apparatus.

A surface of an electronic device includes a reduced friction surface that comprises a glass beaded film. The glass beaded film includes glass beads disposed in a polymer layer or in an adhesive layer, where a portion of the glass beads protrude from a surface of the polymer or adhesive layer. The reduced friction surface is disposed over at least a portion of the surface of the electronic device.

A keyboard includes a plurality of keyswitch structures and an adjusting plate movably disposed under the keyswitch structures. Each of the keyswitch structures includes a tactile feedback member. The adjusting plate includes a plate body and a plurality of adjusting bars protruding from the plate body toward the keyswitch structures and respectively corresponding to the tactile feedback members of the keyswitch structures. When the adjusting plate moves relative to the keyswitch structures, the adjusting bars drive the tactile feedback members to change tactile feedback of the keyswitch structures.

A switch includes a switch housing having a receiving space, a conductive fixed contact element and a conductive active contact element which are provided in the receiving space and being electrically connected to two terminals of the switch respectively, an actuating member reciprocating movable in a predetermined actuating direction between a rest position and an actuated position, and a conductive spring contact element movable with the actuating element. The spring contact element is in constant contact with the fixed contact element and switched between a state of being in contact with a conductive contact surface of the active contact element and a state of being disconnecting with the conductive contact surface of the active contact element. The actuating element is moved back from the actuated position to the rest position due to spring force of the spring contact element.