Abstract:
A detection circuit for an AC-to-AC power converter includes a voltage divider circuit that has three AC input terminal coupled respectively to three input ends of a power converter which are to receive respectively three AC input power signals with different phases, and that receives a predetermined first reference voltage. Upon receiving one AC input power signal, the voltage divider circuit outputs a divided voltage, which during an active period of the one AC input power signal, is greater than a predetermined second reference voltage, to a comparator, which also receives the predetermined second reference voltage, such that the comparator outputs a detection signal that is in an active state when the one AC input power signal is.
Abstract:
A plugging device includes a supporting frame having two opposite side plates disposed between front and rear ends thereof, at least one slide member adapted to be connected to one side of an electronic component and connected slidably to an inner surface of one of the side plates, and an operating member having at least one lever that includes a fulcrum portion connected pivotally to one of the side plates. When the operating member is pivoted rearwardly about the fulcrum portion, the slide member together with the electronic component is driven to slide relative to the supporting frame in a forward direction for plugging a plug electrical connector of the electronic component into a socket electrical connector.
Abstract:
A loudspeaker noise inspection method is to be implemented by an electronic device and includes the steps of: obtaining a frequency sweeping audio signal from an audio output generated by a loudspeaker in response to a frequency sweeping input signal; performing differentiation upon the frequency sweeping audio signal so as to generate a differentiated frequency sweeping audio signal; and dividing the differentiated frequency sweeping audio signal by a constant which is greater than 2π times a maximum frequency of the frequency sweeping audio signal, so as to obtain an attenuated frequency sweeping audio signal for inspection of a noise pulse in the frequency sweeping audio signal.
Abstract:
In a method for generating a depth map for an image, an image processing apparatus is configured to: determine a depth level for each of at least two objects in the image according to an angle of incidence in which light incident upon the object is projected onto an image sensor of a light-field camera; calculate a depth value of the depth level associated with one of the objects; estimate a depth value for the depth level associated with another one of the objects; and generate a depth map according to the depth values. The depth value is estimated based on a distance between first and second locations on the image sensor, on which light incident upon the reference and relative objects are projected.
Abstract:
A hinge for pivotally interconnecting first and second brackets includes a shaft having a shaft body extending through the first and second brackets and formed with an engaging end portion proximate to the second bracket, a fixing member connected to the engaging end portion, a ratchet sleeved rotatably on the shaft body between the fixing member and the second bracket, a friction mechanism having an urging unit sleeved on the shaft body between the ratchet and the fixing member and pressing the ratchet toward the second bracket, and a brake mechanism disposed on the second bracket and having a pawl member releasably engaged to the ratchet.
Abstract:
A voice coil motor array module includes a carrier, and a plurality of voice coil motors disposed on the carrier and arranged side by side in at least one row along an arrangement direction. Each voice coil motor includes a lens holder having a holder body and a coil wound around the holder body, and two magnetic components respectively disposed on two opposite sides of the holder body and having the same magnetic poles facing each other. When the coil is energized, the coil interacts with the magnetic components to drive displacement of the holder body along a direction parallel to a normal direction of a plane of the arrangement direction.
Abstract:
A method is provided to generate a full depth-of-field image using a light-field camera that includes a main lens, a micro-lens array, a light sensing component, and an image processing unit. The micro-lens array forms a plurality of micro-images at different positions of the light sensing component. The image processing unit obtains, for each of the micro-images, an image pixel value according to one of the pixels that is disposed at a specific position of the micro-image, and arranges the image pixel values obtained for the micro-images according to positions of the micro-images on the light sensing component to generate the full depth-of-field image.
Abstract:
A clip assembly includes a seat having a surrounding wall with a receiving hole, and a locking mechanism proximate to the surrounding wall and including a pair of movable levers. Each movable lever has an engaging portion movably inserted into the receiving hole, and a driven portion. A drive unit has a button that is moved to a pressed position, where the driven portions are pushed to move away from each other and out of the receiving hole. A clip mechanism includes a connection body received in the receiving hole and having two connecting holes to respectively engage the engaging portions. The engaging portions are disengageable from the connecting holes by pressing the button.
Abstract:
A camera module includes a sensor unit, a lens unit, and a plurality of conductive members. The sensor unit includes a substrate and an image sensor. The substrate is formed with a plurality of first through holes. The lens unit is disposed on the sensor unit and includes an electrowetting lens device. The electrowetting lens device includes a sealed structure aligned with the image sensor along an optical axis and is formed with a plurality of second through holes. Each of the second through holes is registered with a corresponding one of the first through holes for receiving a corresponding conductive member. A focal length of the electrowetting lens device is adjustably controlled by an electric field applied to the conductive members.
Abstract:
A light emitting diode (LED) component includes a base having a main body and a wiring pattern. The main body defines an axis and includes two connecting surfaces respectively located at two opposite sides thereof, and a plurality of interconnected mounting surfaces surrounding the axis and connected between the connecting surfaces. The wiring pattern is at least disposed on the mounting surfaces and includes electrically insulated anode and cathode. A plurality of light emitting diode (LED) chips are disposed on the mounting surfaces. Each LED chip is electrically connected to the anode and the cathode.