Abstract: A device includes a port and a transformer. The transformer includes a first coil that has a first node and a second node and a second coil that is coupled to the output port. The device also includes a pulse generator coupled to the first node to generate two or more pulses with a first period on the first node and a delay module that is coupled between the second node of the first coil and the pulse generator. The delay module is generates a time delay to the two or more pulses of the pulse generator before the two or more pulses are delivered to the second node. The second coil provides a signal at the port.

Abstract: A transmitter includes a first circuit to generate multiphase pulses, and a second circuit to mix a set of in-phase (I) data and quadrature (Q) data with the multiphase pulses and to generate an output radiofrequency (RF) signal. The multiple pulses include multiple I pulses and multiple Q pulses each comprising a pulse that includes a duty cycle such that a first null appears at a third harmonic frequency in a frequency spectrum of the pulse.

Abstract: A transmitter includes a first digital-to-analog converter (DAC) circuit consisting of a first set of unary cells to mix a first set of digital input data with a first clock signal. A second DAC circuit includes a second set of unary cells to mix a second set of digital input data with a second clock signal. A third circuit provides signals to the first DAC circuit and the second DAC circuit to implement an assignment scheme to assign either an in-phase (I) component or a quadrature (Q) component to the first set of unary cells and the second set of unary cells. Based on the assignment scheme, the first set of digital input data include I-data and Q-data, and the second set of digital input data include I-data and Q-data.

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: A liquid crystal display (LCD) device has a housing acting as a conductor, a plurality of circuits, and at least a filter unit. Each circuit has a reference voltage terminal electrically connected to a reference voltage level. When the reference voltage terminal of each circuit is electrically connected to the housing, one filter unit is electrically connected between the housing and a ground terminal. When the housing is electrically connected to the ground terminal, a plurality of filter units are respectively connected between the housing and the reference voltage terminal of each circuit.

Abstract: A multi-lamp system for driving a lamp set having a first lamp and a second lamp comprises a driving circuit for converting a DC signal to an AC signal, a transformer having a primary side coupled to the driving circuit and a secondary side for outputting the AC power, and a current balance circuit coupled to the low voltage terminal of the lamp set for balancing the current values flowing through the first lamp and the second lamp. The current balance circuit comprises a magnetic core, a first winding coupled to the first lamp and a second winding coupled to the second lamp. The first winding and the second winding are wound on the magnetic core and have the same coil number.

Abstract: A liquid crystal display (LCD) device has a housing acting as a conductor, a plurality of circuits, and at least a filter unit. Each circuit has a reference voltage terminal electrically connected to a reference voltage level. When the reference voltage terminal of each circuit is electrically connected to the housing, one filter unit is electrically connected between the housing and a ground terminal. When the housing is electrically connected to the ground terminal, a plurality of filter units are respectively connected between the housing and the reference voltage terminal of each circuit.

Abstract: A system for driving a plurality of lamps is disclosed to balance currents flowing through the lamps by means of impedance matching. According to the multi-lamp driving system of the present invention, a balancing controller is employed to match the impedance of each lamp path so as to regulate currents flowing through the lamps to be substantially the same.

Abstract: A multi-lamp system for driving a lamp set having a first lamp and a second lamp comprises a driving circuit for converting a DC signal to an AC signal, a transformer having a primary side coupled to the driving circuit and a secondary side for outputting the AC power, and a current balance circuit coupled to the low voltage terminal of the lamp set for balancing the current values flowing through the first lamp and the second lamp. The current balance circuit comprises a magnetic core, a first winding coupled to the first lamp and a second winding coupled to the second lamp. The first winding and the second winding are wound on the magnetic core and have the same coil number.

Abstract: The present invention relates to a driving system for multiple lamps, which comprises a plurality of lamps including one master lamp and at least one slave lamp, an inverter circuit for converting DC power to AC power to be supplied to said plurality of lamps, and at least one current balancing circuit having an impedance device coupled to each of the slave lamp, so that the equivalent impedance varies with the current values of said master lamp and each of said slave lamps to thereby balance the currents in said master slave lamps.

Abstract: The present invention relates to a driving system for multiple lamps, which comprises a plurality of lamps including one master lamp and at least one slave lamp, an inverter circuit for converting DC power to AC power to be supplied to said plurality of lamps, and at least one current balancing circuit having an impedance device coupled to each of the slave lamp, so that the equivalent impedance varies with the current values of said master lamp and each of said slave lamps to thereby balance the currents in said master slave lamps.