Abstract:
A driving circuit for providing a driving voltage to a first flash light-emitting diode is provided. The driving circuit includes an inductor, a first switch, a second switch, a capacitor, a third switch, a fourth switch and a control unit. The control unit controls operating modes of the inductor and the capacitor to a boost mode or a buck mode according to a driving mode of the first flash light-emitting diode, and determines whether to switch the operating modes of the inductor and the capacitor according to a first driving current flowing through the first flash light-emitting diode. An operating method for the driving circuit is also provided.
Abstract:
A keyboard module pivotally connected to an electronic device is provided. The keyboard module comprises a bottom plate, a plurality of keys, a keyboard frame and a hinge structure. The plurality of keys are disposed on the bottom plate. The key includes a keycap and a support member for connecting the keycap to the bottom plate. The keyboard frame includes a plurality of openings to expose the keycaps. The hinge structure pivotally connects a display module of the electronic device with the keyboard frame or the bottom plate. When the display module rotates to drive the keyboard frame (or the bottom plate), the keycap moves relative to the keyboard frame (or the bottom plate). An electronic device including the keyboard module is also provided.
Abstract:
A voltage regulator device includes at least one output unit, a current sensing unit, a control unit, at least one transistor driving unit and a pulse width modulation unit. The output unit outputs an output signal. The output unit includes a first transistor, a second transistor and an energy storage element. The second transistor is electronically connected to the first transistor and the energy storage element, respectively. The current sensing unit is electronically connected to a first end and a second end of the energy storage element. The control unit is electronically connected to the current sensing unit and the output unit, respectively. The transistor driving unit is disposed corresponding to the output unit and is electronically connected to the control unit and the output unit. The pulse width modulation unit is electronically connected to the control unit and the transistor driving unit, respectively.
Abstract:
An electronic device and a non-transitory computer readable storage medium are provided. After the real-time communication interface is enabled, the source filter obtains the image adjusting parameter when that the source filter is driven is detected. The source filter applies the image adjusting parameter to an image data captured by the image capturing unit, and then the adjusted image data is obtained. The real-time communication interface outputs the adjusted image data.
Abstract:
A portable electronic device comprising a device body, a first linking member and a supporting member is provided. The first linking member includes a first end and a second end. The first end is rotatably connected to the device body. The supporting member is pivotally connected to the second end. The supporting member moves relative to the device body via the first linking member, the first linking member rotates relative to the device body via the first end, and then the second end moves close to or out from the device body.
Abstract:
An image processing device includes a camera unit, a control unit, an image processing unit and a storage unit. The camera unit obtains a first image. The control unit coupled to the camera unit adjusts an exposure value of the camera unit to control an average luminance value of the dark part of the first image and a contrast value of the first image. The storage unit is coupled to the control unit. The image processing unit is coupled to the camera unit and the storage unit, and it generates a second image according to the first image and a first algorithm stored in the storage unit, and generates a third image according to the first image and a second algorithm stored in the storage unit. The image processing unit generates a fourth image according to luminance values of the first image, the second image and the third image.
Abstract:
Accordingly, the present disclosure is directed to an audio capturing enhancement method and an audio capturing system using the same method. The audio capturing system includes at least but not limited to two microphones for recording an audio data, an amplifier coupled to the at least two microphones for adjusting the audio data by applying automatic gain control (AGC) in order to generate a gain adjusted data that is within a predefined level, and a processing circuit coupled to the amplifier for calculating a linear predictive coding (LPC) residue of the gain adjusted data, determining from the LPC residue a first source at a first direction relative to the at least two microphones based on time different of arrival (TDOA), and attenuating any source at a second direction that is outside of a predefined direction.
Abstract:
A screen capturing method and an electronic device using the same are provided. The screen capturing method includes that a continuous track is inputted. The continuous track includes a first stroke and a second stroke, and a first recording point is captured at a first moment of the first stroke, a second recording point is captured at a second moment of the second stroke. The first recording point includes a first velocity, and the second recording point includes a second velocity. The first velocity and the second velocity form an angle. A capturing box of a preset shape is enabled when the strokes meet the determining condition. An image is captured via the capturing box.