Abstract: A quantum circuit includes: a qubit, a resonant cavity, and a feeder, the resonant cavity being coupled to the qubit, and the feeder being coupled to the qubit. The feeder is configured to feed an initialization signal to the qubit, the initialization signal being a modulation signal used for causing a frequency of the qubit to generate a vibration. The vibration causes an equivalent state exchange to occur between the qubit and the resonant cavity, and an excited state of the qubit is initialized to a ground state by using the resonant cavity.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a first movable portion, a second movable portion, a first driving assembly, and a second driving assembly. The first movable portion is movable relative to the fixed portion. The second movable portion is used for holding an optical element having a main axis, and is movable relative to the first movable portion. The first driving assembly is used for driving the first movable portion to move in a first dimension relative to the fixed portion, and the second driving assembly is used for driving the second movable portion to move in a second dimension relative to the fixed portion. The first dimension and the second dimension are different.

Abstract: A parity checking method and apparatus for a qubit, a superconducting quantum chip, an electronic device, and a storage medium are provided. The method includes: configuring a measurement system for a qubit excited state measurement environment, the measurement system including: a first data qubit, a second data qubit, and an auxiliary qubit; determining a first operational frequency parameter of the first data qubit; determining a second operational frequency parameter of the second data qubit; determining a third operational frequency parameter of the auxiliary qubit; determining a logic gate matching the qubit excited state measurement environment based on the first operational frequency parameter, the second operational frequency parameter, and the third operational frequency parameter; and checking parity of a qubit in the qubit excited state measurement environment according to the logic gate.

Abstract: A display device includes first and second display modules and first and second turning pieces that include a first coupling piece, a first turning piece, a second turning piece, and a third turning piece, a second coupling piece and a guiding device. When the first and second display modules are switched between folding and unfolding, the first turning piece pivots relative to the first coupling piece and the second turning piece, and the third turning piece pivots relative to the second coupling piece and the second turning piece. When the display module is switched from folded to unfolded, the other side of the first display module relative to the side is pulled, the side of the first display module is guided by one end of the guiding device and slides to the other end, the first and second display modules are symmetrically unfolded with the side edge as the center.

Abstract: Systems, apparatuses, and methods for implementing an instant auto-focus mechanism with distance estimation are disclosed. A camera includes at least an image sensor, one or more movement and/or orientation sensors, a timer, a lens, and control circuit. The control circuit receives first and second images captured by the image sensor of a given scene. The control circuit calculates a distance between first and second camera locations when the first and second images, respectively, were captured based on the one or more movement and/or orientation sensors and the timer. Next, the control circuit calculates an estimate of a second distance between the camera and an object in the scene based on the distance between camera locations and angles between the camera and the object from the first and second locations. Then, the control circuit causes the lens to be adjusted to bring the object into focus for subsequent images.

Abstract: An optical element driving system is provided. The optical element driving system includes a fixed portion, a first movable portion, a second movable portion, a first driving assembly, a second driving assembly, and a connecting element. The first movable portion is used for moving relative to the fixed portion. The second movable portion is used for holding an optical element having a main axis, and is movable relative to the first movable portion. The first driving assembly is used for driving the first movable portion to move relative to the fixed portion in a first dimension. The second driving assembly is used for driving the second movable portion to move relative to the first movable portion in a second dimension. The connecting element connects the first movable portion and the second movable portion.

Abstract: An optical element driving mechanism is provided, including a base, a holder movably coupled to the base for holding an optical element, a casing, a frame, a driving assembly, and an adhering member. The casing has a top wall and a plurality of side walls extending from the edge of the top wall along an optical axis of the optical element, and the top wall is closer to a light-incident end than the base. The frame is disposed on the top wall and has a frame protrusion extending toward the base. The driving assembly is configured to drive the holder to move relative to the base, and an accommodating space is formed between the base, the frame and the casing. The adhering member is disposed in the accommodating space and configured to directly adhere to the base, the frame, the casing, and the driving assembly.

Abstract: A driving mechanism for an optical element is provided, including a support body, a movable portion, an elastic assembly, and a driving assembly. The movable portion is located in the support body. The movable portion is movable relative to the support body and is used to connect to an optical element. The elastic assembly is movably connected to the support body and the movable portion. The driving assembly is disposed on the support body and the movable portion, and is configured to drive the movable portion to move relative to the support body.

Abstract: Techniques for performing phase detect operations are described. The techniques include obtaining first measurements with a set of half-shield phase-detect sensors; obtaining second measurements with a set of non-phase detect sensors that are not configured as phase-detect sensor; and determining a phase difference based on the first measurements and the second measurements.

Abstract: Techniques for generating a depth map are described. The techniques include obtaining a set of phase difference measurements with a phase detect sensor, and generating a depth map based on the set of phase difference measurements, utilizing a first set of calibration data correlating phase difference measurements with lens defocus data and a second set of calibration data correlating lens positions with object distances.

Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is movable relative to the immovable part. The movable part holds an optical element with an optical axis. The drive assembly drives the movable part to move relative to the immovable part. At least part of the drive assembly is disposed on the immovable part.

Abstract: The present disclosure provides a shutter to expose or shut a camera, which comprises a base, a winding component, a shutting part, a first magnet, a buckling member, and a second magnet. Wherein, when the winding component forms a first magnetic field or the second magnetic field through a first current or a second current, the second magnet is driven to move the buckling member to be close to or away from the shutting part.

Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a movable portion, a fixed portion, a driving assembly and a guiding assembly. The movable portion is configured to connect an optical member, and is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the fixed portion. The guiding assembly is configured to limit the mode of movement for the movable portion relative to the fixed portion. The guiding assembly includes an intermediate element, the intermediate element contacts the fixed portion and is movable relative to the fixed portion. The guiding assembly further includes a first metallic element, the first metallic element includes metal and corresponds to the intermediate element.

Abstract: Systems, apparatuses, and methods for estimating object distance with camera lens focus calibration are disclosed. A relationship between in-focus lens position and object distance is captured in a calibration phase for a plurality of object distances and lens positions for a given camera. The in-focus lens positions and corresponding object distances are stored as calibration data in a memory device of the given camera. Next, during operation of the given camera, a control circuit receives the in-focus lens position that was used to capture a given image. Then, the control circuit performs a lookup of the calibration data with the in-focus lens position to retrieve a corresponding object distance. Next, the corresponding object distance is used as an estimate of a distance to an object in the scene captured in the given image by the given camera.

Abstract: The present disclosure provides a camera device and a long tuning range camera assembly. The camera device comprises a frame body, a circuit component, a carrying component, and a magnetic conductive sheet. The frame body comprises an accommodating space. The circuit component comprises a circuit board, a magnetic sensing element, and a coil. The carrying component comprises a main body, a driving magnet, and a sensing magnet. Wherein the magnetic sensing element is configured to magnetically sense the sensing magnet to generate a specific signal, which comprises an angle between the sensing magnet and the magnetic sensing element or/and a position of the main body relative to the frame body. The long tuning range camera assembly comprises two sets of camera devices.

Abstract: An optical element driving mechanism is provided, including a fixed portion, a movable portion, a driving assembly, and a connecting assembly. The fixed portion includes a base and a case. The movable portion is movable relative to the fixed portion and is used for connecting an optical element. The driving assembly is disposed between the fixed portion and the movable portion for moving the movable portion relative to the fixed portion. The connecting assembly is disposed between the fixed portion and the movable portion.

Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

Abstract: An apparatus and method for efficiently determining a final camera lens position that captures a focused input image are described. An image signal processing system of a camera capable of performing automatic focus includes a camera lens, an image sensor, a focus engine, and a lens controller. Rather than generate a single contrast value based on digital signals corresponding to a single image, the focus engine uses at least two value generators to generate multiple contrast values. The value generators are bandpass filters with different bandwidths from one another. The focus engine uses the multiple contrast values, rather than from a single contrast value, to determine a search direction for finding a final lens position of the camera lens, when to use relatively large or coarse step sizes for updating the lens position, and when to use relatively small or fine step sizes for updating the lens position.

Abstract: The present disclosure provides a shutter to expose or shut a camera, which comprises a base, a winding component, a shutting part, a first magnet, a buckling member, and a second magnet. Wherein, when the winding component forms a first magnetic field or the second magnetic field through a first current or a second current, the second magnet is driven to move the buckling member to be close to or away from the shutting part.