A positioning device includes an camera, a detector, and a circuit. The camera is mounted on a moving body, and captures an image of surroundings of the moving body to acquire a captured image. The detector is mounted on the moving body, detects motion of the moving body, and outputs a detection signal indicating a detection result. The circuit processes the detection signal using a correction value for correcting a bias error included in the detection signal without depending on the motion of the moving body. The circuit computes the position of the moving body based on the captured image acquired by the camera and the detection signal processed. If the circuit determines that the moving body is stationary, the circuit updates the correction value of the bias error based on the detection signal output by the detector.

The present invention provides an MEMS gyroscope and an electronic product. The MEMS gyroscope comprises a plurality of first mass blocks, a second mass block and coupling parts, wherein the plurality of first mass blocks are located at two opposite sides of the second mass block in a first direction; and each coupling part comprises a coupling link and a plurality of connecting beams connected to two ends of the coupling link, the connecting beams are flexible beams, and the coupling part is positioned between the first mass blocks and the second mass block and connects the first mass blocks with the second mass block. Through the arrangement of the coupling links, strong coupling can be realized between the first mass blocks and the second mass block, so that the anti-interference performance of the MEMS gyroscope is enhanced during work and the working stability is improved.

The present disclosure provides a micro-mechanical gyroscope and an electronic product. The micro-mechanical gyroscope includes a plurality of first mass blocks, a plurality of second mass blocks, a plurality of driving members, first connecting beams and second connecting beams. The first mass blocks are arranged to face to each other in a first direction, and the second mass blocks are arranged between the first mass blocks and arranged to face to each other in a second direction perpendicular to the first direction. In the second direction, the driving members are arranged on either sides of the first mass blocks and of the second mass blocks. Ends of the first mass blocks in the second direction are connected to driving members, respectively, through the first connecting beams, and the second mass blocks are connected to adjacent driving members, respectively, through the second connecting beams 5.

A circuit device includes a drive circuit that drives a driver in a physical quantity detection element and generates a periodic signal, based on a signal output from the driver; a detection circuit that generates a physical quantity detection signal related to a physical quantity detected by a detector in the physical quantity detection element, based on the signal output from the detector; and a bandpass filter circuit that receives the periodic signal and outputs a detection signal through a digital process. The detection circuit includes an analog front end that amplifies the signal output from the detector; an A/D conversion circuit that converts a signal output from the analog front end into a digital signal; and a demodulation circuit that demodulates a physical quantity signal contained in the digital signal output from the A/D conversion circuit, based on the detection signal. The detection circuit generates the physical quantity detection signal, based on the demodulated physical quantity signal.

An electronic component includes: a substrate including a flexible wiring board having a first surface and a second surface that are in a front and back relationship, and a support plate having a first opening and joined to the first surface of the flexible wiring board; and a first component and a second component both disposed on the substrate. The substrate includes a first region in which the first surface extends along a first direction and a second direction orthogonal to each other, a second region that is disposed on one side of the first region in the first direction and in which the first surface extends along a third direction orthogonal to the first direction and the second direction, and a first coupling region that is located between the first region and the second region and is bent such that a support plate side is located inside. The first component is attached to the first surface in the first region via the first opening. The second component is attached to the second region.

In an example, a gyroscopic driver circuit can be configured to be coupled to a gyroscopic structure which can include a proof mass. The gyroscopic driver circuit can include an in-phase leg, which can be configured to carry the in-phase signal generated in the second primary mode of the gyroscopic structure. The gyroscopic driver circuit can also include a quadrature-phase leg, which can be configured to carry a quadrature-phase signal generated in the second primary mode of the gyroscopic structure, where the quadrature-phase signal can be in quadrature with the in-phase signal. The gyroscopic driver circuit can also include quadrature feedback circuitry, which can be configured to generate a quadrature feedback signal, where the quadrature feedback signal can include a representation of the signal on the quadrature-phase leg and a representation of the signal on the in-phase leg.