A linear guideway is characterized in that it is capable of determining whether there is abnormal displacement of the return member based on the open or close of the circuit, and can output the abnormal signal immediately when the circuit is open. Compared with the conventional structure, since the present invention can be disposed only at one end of the slide block, both the number of components and assembly time can be reduced, and the diagnosis with precision and immediacy can be performed without high-deep algorithm, which can play a role of instant reminding before the linear guideway completely loses function. Therefore, the service life of the linear guideway can be known early to avoid the loss caused by the shutdown.

An automatic hold switch is disclosed. The automatic hold switch provides a means for automatically switching a hold feature on and off. When the hold feature is on, one or more input devices of a portable electronic device are disabled or prevented from providing input signals. When the hold feature is off, one or more input devices of a portable electronic device are enabled or allowed to provide input signals. Because the user no longer has to manually control the hold feature, the number of actions that need to be taken by the user is reduced. In one example, the automatic hold switch is embodied with light sensors that detect when the device is in a dark environment and when the device is in a light environment. A dark environment indicates to the portable electronic device that the user wishes not to input and therefore the hold feature is turned on. A lighted environment indicates to the portable electronic device that the user wishes to input and therefore the hold feature is turned off.

A power switching control device includes a unit to measure a power-supply-side voltage of a circuit breaker, a unit to calculate a current that flows through a resistor after a switch is turned on and before a circuit breaking unit is turned on, and to calculate an interelectrode voltage of the circuit breaking unit after the switch is turned on and before the circuit breaking unit is turned on, a unit to determine a target closing time point for the circuit breaking unit so that a target turn-on phase for the circuit breaking unit becomes a phase that is set in accordance with the capacitor, and to output a control signal such that the circuit breaking unit is closed at the target closing time point.

A load-detecting device 1 includes a load detection sensor unit SU and a base 2 on which the load detection sensor unit SU is mounted, and the load detection sensor unit SU includes an upper surface 47S configured to be pressed by a seat cushion SC, a first electrode 52, and a second electrode 62. The upper surface 47S moves with respect to the mount surface 21S such that an angle of the upper surface 47S with respect to the mount surface 21S changes.

A load-detecting device 1 includes a load detection sensor unit SU and a base 2 on which the load detection sensor unit SU is mounted, and the load detection sensor unit SU includes an upper surface 47S configured to be pressed by a seat cushion SC, a first electrode 52, and a second electrode 62. The upper surface 47S moves with respect to the mount surface 21S such that an angle of the upper surface 47S with respect to the mount surface 21S changes.

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.

A sensor device includes a resin inner housing which has an accommodating space therein and in which an opening is provided, an externally exposed part which is disposed to cover the opening or pass through the opening and of which at least a part is exposed to the outside of the inner housing, and a metal outer housing which is positioned outside the inner housing and accommodates the inner housing and covers the inner housing. When a sealing treatment is performed between the inner housing and the externally exposed part, the accommodating space is sealed off from a space outside the inner housing. When a cut-off part is provided in the outer housing at a position corresponding to the part exposed to the outside of the inner housing of the externally exposed part, the part of the externally exposed part is also exposed to the outside of the outer housing.

A timing apparatus for an aquatic timing system includes a rigid and planar primary portion, a flange portion extending at an angle from the primary portion, a vibration sensor coupled with the flange portion, and a controller. The vibration sensor is operable to detect a touch event occurring on the primary portion and respond to the touch event by generating a signal. The controller is in communication with the vibration sensor and is configured to receive the signal from the vibration sensor and identify a touch event from the signal. The vibration sensor may be operable to detect the touch event by detecting a vibration on the flange portion that originated from the touch event on the primary portion.

One embodiment of the present disclosure is directed to a wearable electronic device. The wearable electronic device includes an enclosure having a sidewall with a button aperture defined therethrough, a display connected to the enclosure, and a processing element in communication with the display. The device also includes a sensing element in communication with the processing element and an input button at least partially received within the button aperture and in communication with the sensing element, the input button configured to receive two types of user inputs. During operation, the sensing element tracks movement of the input button to determine the two types of user inputs.

A photoelectric sensor includes: a light emitter; a reflector configured to reflect light emitted from the light emitter on a reflection surface; and a light receiver configured to receive the light reflected by the reflector. A detection object that has a sheet shape or flat plate shape and is located between the light emitter and the light receiver and the reflector is detected based on an amount of light received by the light receiver. The reflection surface is inclined with respect to a surface of the detection object on which the light reflected by the reflection surface is incident. The reflector reflects light such that the light is obliquely incident on the surface of the detection object at an incident angle of greater than or equal to 60.