An input device includes a permanent magnet, a magnetic sensor, an operating unit, and a conversion mechanism. A movable member is one of the permanent magnet or the magnetic sensor. The conversion mechanism is configured to convert a movement of the operating unit in a first direction into a first action of the movable member and convert a movement of the operating unit in a second direction into a second action of the movable member. The first action is a movement involving a change in a relative angle of rotation of the permanent magnet around a rotation axis relative to the magnetic sensor. The second action is a movement involving a change in the strength of the magnetic field applied to the magnetic sensor.

An anti-defeat magnetically actuated proximity sensor including a switch unit and an actuating unit in separate housings. The switch unit can include one or more biased or non-biased magnetic reed switches, circuit boards, armored cable and wires. The actuating unit can include one or more magnets of specific polarity. The physical arrangement of the one or more reed switches of the circuit boards and the one or more magnets of the actuating unit result in the proximity sensor's anti-defeat characteristics.

A portable actuator and safety switch assembly wherein the portable actuator includes a housing and an actuator for selectively engaging with a control mechanism of said safety switch. The actuator is at least one of partially located within the housing, forms a part of the housing, or is attached to the housing. The assembly includes a controller that controls a configuration of the actuator assembly, such that the actuator assembly can selectively and controllably attain a first configuration wherein the actuator is able to interact with the control mechanism of the safety switch and a second configuration wherein the actuator is unable to manipulate the control mechanism of said safety switch.

Apparatus for floor cleaning, having a cavity that opens on the dashboard, a plurality of mechanically similar interchangeable keys, and suitable to be inserted completely into and operate with said cavity, two or more Hall-effect sensors arranged outside said cavity, at least one first key containing at least one magnet, and at least one second key including at least one respective second magnet, which are in functional correspondence with respective predefined sensors. Said magnets do not interfere with sensors to which they are not geometrically connected, and for this purpose they are aligned on a same straight line, and the insertion of said keys causes a movement of said magnets toward the respective sensors with a motion orthogonal to said straight line.

Implantable medical systems include implantable medical leads that have magnetic orientation-independent magnetically actuated switches that are placed in the conduction path to the electrode of the lead. Thus, regardless of the orientation of a substantial magnetic field like that from an MRI machine to the lead and switch within the lead, the switch opens when in the presence of that substantial magnetic field. The switch may be placed in close proximity to the electrode such that the opening of the switch disconnects the electrode from the majority of the conduction path which thereby produces a high impedance for RF current and reduces the amount of heating that may occur at the electrode when in the presence of substantial levels of RF electromagnetic energy as may occur within an MRI machine.

A sensor includes: a receptacle connectable to an external plug; a second housing accommodating at least part of the receptacle; a main substrate on which an electronic component used for sensing is mounted; a shield film covering at least part of the main substrate and shielding an electromagnetic wave emitted from the main substrate and/or an electromagnetic wave to penetrate the main substrate from the outside; a first housing accommodating at least part of the main substrate and at least part of the shield film; a flexible substrate connecting the main substrate and the receptacle; and a protection member abutting on an end of the shield film from the side opposite to the main substrate, the end of the shield film facing the flexible substrate.

A contactor system includes: a contactor provided on a power supply path connecting a power supply and a load, the contactor comprising a normally open movable contact for selectively establishing/interrupting the power supply path and an electromagnetic coil for driving the movable contact; a contactor driving circuit electrically connected to the electromagnetic coil to drive the contactor; a current sensor for detecting a contactor drive current flowing from the contactor driving circuit to the electromagnetic coil; and a controller configured to control the contactor driving circuit so as to apply a voltage to the electromagnetic coil to close the contactor and so as to stop voltage application to the electromagnetic coil to open the contactor, wherein the controller is configured to estimate a coil temperature of the electromagnetic coil based on the contactor drive current detected by the current sensor.

Eyewear or other head-worn apparatus are fitted with an activation accessory that includes one or more switch elements integrated with or attached to a nose piece of the eyewear. The switch elements are communicably coupled to a processor-based controller so as to provide input signals to the controller responsive to wearer-initiated activations of the switch elements through interaction with a frame or temple piece of the eyewear. Upon receipt, the controller evaluates the input signals to determine whether or not they represent a command for the controlled device by assessing the input signals for a signal pattern indicative of such a command, and then, if the evaluation determines that the input signals do represent the command, issues the command to the controlled device. Otherwise the controller proceeds to receive and evaluate further input signals from the switch elements in a like manner as the first input signals.

The present disclosure belongs to the technical field of keyboard keys, and a magnetic switch key is provided. The magnetic switch key comprises a shell and a movable shaft. A perforating hole is formed in a top wall of the shell. The movable shaft is inserted into the perforating hole to be capable of reciprocating motion. The magnetic switch key is more reasonable in magnet layout. The movable magnet can drive the movable shaft to reset in absence of external force. A paragraph hand feeling or linear hand feeling can be realized through the height adjustment of the magnets, so that the using comfort feeling is greatly promoted.

Eyewear or other head-worn apparatus are fitted with an activation accessory that includes one or more switch elements integrated with or attached to a nose piece of the eyewear. The switch elements are communicably coupled to a processor-based controller so as to provide input signals to the controller responsive to wearer-initiated activations of the switch elements through interaction with a frame or temple piece of the eyewear. Upon receipt, the controller evaluates the input signals to determine whether or not they represent a command for the controlled device by assessing the input signals for a signal pattern indicative of such a command, and then, if the evaluation determines that the input signals do represent the command, issues the command to the controlled device. Otherwise the controller proceeds to receive and evaluate further input signals from the switch elements in a like manner as the first input signals.