A sensor device includes a main driving gear, driven gears, an biasing member configured to bias the driven gears toward the main driving gear, a support member configured to support the biasing member, and a sensor configured to generate an electrical signal based on rotation of the driven gears. In a force applied when the biasing member biases the driven gears, assuming that a direction orthogonal to a tangent line at a point of action of the force is set as a first direction, the first direction is different from a second direction.

A position detection unit for detecting a position of an actuating element, disposed within a housing of a clutch actuator of a vehicle clutch, including: a magnetic encoder element in the housing of the clutch actuator on the actuating element, a sensor outside the housing of the clutch actuator and is configured so that it has a detection space within which the sensor can detect a position of the magnetic encoder element within a predefined range of motion of the magnetic encoder element, and a protective device to prevent ferritic filings attracted by the magnetic encoder element from being deposited within the detection space. Also described is a related clutch actuator.

There is provided a light control circuit including a light detector, a frequency detector, an error amplifier, an NMOS driver and a light source. The frequency detector identifies a signal frequency according to detected voltage signals outputted by the light detector and generates a control signal accordingly. The NMOS driver changes a drive current of the light source according to an output of the error amplifier. The error amplifier changes a bandwidth thereof according to the control signal from the frequency detector to regulate a response time of the drive current of the light source.

A system and method for receiving and executing emoji based commands is disclosed. The system and method may include processes such as identifying ,emojis in a message, determining one or more action based on the emoji, and completing the determined actions.

There has been a problem that a rotation second-order angle error due to a phase difference between a sine signal and a cosine signal deviating from π/2 cannot be reduced. Therefore, provided is an angle detection device that can suppress a second-order angle error caused due to the phase difference between a first sine signal and a second sine signal deviating from π/2, by calculating a detection angle from a first detection signal based on the sum of two sine signals having different phases and a second detection signal based on the difference of the two sine signals.

A system and method for receiving and executing emoji based commands in messaging applications. The system and method may include processes such as identifying emojis in a message, determining one or more action based on the emoji, and completing the determined actions.

There is provided a light control circuit including a light detector, a frequency detector, an error amplifier, an NMOS driver and a light source. The frequency detector identifies a signal frequency according to detected voltage signals outputted by the light detector and generates a control signal accordingly. The NMOS driver changes a drive current of the light source according to an output of the error amplifier. The error amplifier changes a bandwidth thereof according to the control signal from the frequency detector to regulate a response time of the drive current of the light source.

A sensor device includes a main driving gear, driven gears, an biasing member configured to bias the driven gears toward the main driving gear, a support member configured to support the biasing member, and a sensor configured to generate an electrical signal based on rotation of the driven gears. In a force applied when the biasing member biases the driven gears, assuming that a direction orthogonal to a tangent line at a point of action of the force is set as a first direction, the first direction is different from a second direction.

A position detection device includes a magnetic scale and a magnetic sensor. The magnetic scale includes a plurality of magnets arranged along a first reference direction. The magnetic sensor includes a plurality of detectors that detect a composite magnetic field. The plurality of detectors are each arranged to satisfy AG=N(M−W)/(n−1), where n is the number of magnets of the magnetic scale, M is a distance from a first end to a second end, W is the width of each of the plurality of magnets and is greater than 0 and less than or equal to M/n, AG is a gap between each of the plurality of magnets and each of the plurality of detectors in a second reference direction, and N is a number greater than or equal to 0.4 and less than or equal to 2.

There is provided a light control circuit including a light detector, a frequency detector, an error amplifier, an NMOS driver and a light source. The frequency detector identifies a signal frequency according to detected voltage signals outputted by the light detector and generates a control signal accordingly. The NMOS driver changes a drive current of the light source according to an output of the error amplifier. The error amplifier changes a bandwidth thereof according to the control signal from the frequency detector to regulate a response time of the drive current of the light source.