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: The present invention discloses a USB3.0 clock frequency generation device without crystal oscillator, that is, the crystal oscillator used in the USB3.0 device (or apparatus) is removed and replaced with an oscillator circuit module in the present invention, in which a simple circuit module is added to the controller circuit of the USB3.0 device to provide accurate and proper timing signals needed. The oscillator circuit module includes an oscillator block, a frequency divider block, a delta-sigma modulator block, and a preset number block.

Abstract: The present invention is a low-ripple power supply comprising a clock generator, a plurality of charge pump modules, and an adder unit. The low-ripple power supply inputs each of a plurality of clock signals generated by the clock generator into each of the plurality of charge pump modules. Since each of the plurality of charge pump modules sends the inputted corresponding clock signal into two paths to be inputted into the first and the second charge pump, respectively, and the corresponding clock signal inputted into the second charge pump undergoes an inversion by the inverter, by adding the first voltage outputted by the first charge pump and the second voltage outputted by the second charge pump, the ripples may be eliminated; finally, the adder unit adds the voltages outputted by each of the plurality of charge pump modules to yield a low-ripple DC voltage.

Abstract: The present invention is a multiple-format multimedia interface module, comprising a first port, a circuit module, a first transmission line, a second port, and a second transmission line. The multiple-format multimedia interface module connects a mobile device with a display device conveniently, and may bidirectionally transmit signals between a transmitter end with multiple signal formats of MHL, MyDP, and USB and a receiver end with a single signal format of HDMI or bidirectionally transmit signals between a transmitter end with a single signal format and a receiver end with multiple signal formats.

Abstract: The present invention discloses a USB3.0 clock frequency generation device without crystal oscillator, that is, the crystal oscillator used in the USB3.0 device (or apparatus) is removed and replaced with an oscillator circuit module in the present invention, in which a simple circuit module is added to the controller circuit of the USB3.0 device to provide accurate and proper timing signals needed. The oscillator circuit module includes an oscillator block, a frequency divider block, a delta-sigma modulator block, and a preset number block.

Abstract: The present invention discloses a method of getting out from error entering into test mode in USB3.0 apparatus, in which extra status states are inserted into the compliance mode in the original state diagram of the link training and status state machine of the conventional USB3.0 protocol. The inserting status states are to set up a timer, and go to power saving state U1, U2, or U3 or SS.Disable state when timeout happens. The insertion of the timer will not change the normal compliance tests required by the conventional USB3.0 protocol because a Ping.LFPS will always force the state go from power saving state U1, U2 or U3 to compliance mode, and the Ping.LFPS is always needed in normal compliance tests.