Abstract:
A liquid crystal display (LCD) having a plurality of pixels is provided. In one embodiment, the pixels of the LCD each include common and pixel electrodes formed on an insulating layer, and a liquid crystal layer responsive to electric fields generated by the electrodes. The plurality of pixels may include two or more sets of pixels each configured to transmit light of a different color, and the pixel electrodes of one set of pixels may be configured differently from those of another set. In other embodiments, the sizes of the pixels may differ. Various additional devices and methods are also provided.
Abstract:
A power supply apparatus suitable for a computer is provided. The provided power supply apparatus includes an isolated DC-DC converter, an auxiliary power conversion circuit and a switching circuit. The isolated DC-DC converter receives and converts an input voltage, so as to generate a first main power. The auxiliary power conversion circuit receives and converts the input voltage, so as to generate an auxiliary power. The switching circuit receives the first main power and the auxiliary power, wherein the switching circuit outputs the received auxiliary power to be served as a standby power of the power supply apparatus when the power supply apparatus is in a standby state; moreover, the switching circuit outputs the received first main power to be served as the standby power of the power supply apparatus when the power supply apparatus is in an operation state.
Abstract:
The present invention provides a method of arranging demodulation reference signals in a radio communication system that communicates according to a coordinated scheme. Demodulation reference signals and data are transmitted to a receiving terminal through time/frequency resources of the radio communication system using a resource block as a base unit. The method includes arranging at least two orthogonal DM-RSs in two edge OFDM symbols for resource blocks of respective cells, a frequency offset existing between cells at positions of the orthogonal DM-RSs in the edge OFDM symbols, performing puncturing at positions corresponding to the orthogonal DM-RSs of the other cells in the edge OFDM symbols of the respective cells, arranging superimposing DM-RSs in the two edge OFDM symbols in a resource block of one cell and arranging the superimposing DM-RSs at positions corresponding to the resource blocks of the other cells, wherein positions of the superimposing DM-RSs are set between the positions of the orthogonal DM-RSs in the respective edge OFDM symbols.
Abstract:
A current-input-type parallel resonant DC/DC converter and a method thereof are provided. The converter includes an inverter-circuit for inverting/converting an input DC current into a positive-and-negative alternating square-wave-current, a resonant-network for converting the square-wave-current into a sine-voltage, a transformer for realizing the isolation of the power transmission, a full-wave rectifier-circuit for rectifying the sine-voltage, and an output-filter-circuit for producing a DC output-voltage. The inverter-circuit is connected to both terminals of a primary-winding of the transformer through the resonant-network connected in series with the inverter-circuit, a common-polarity terminal of a first-winding at a secondary side of the transformer and an opposite-polarity terminal of a second-winding at the secondary side of the transformer are respectively connected to an input of the full-wave rectifier-circuit, and an output of the full-wave rectifier-circuit and a center-trap terminal at the secondary side of the transformer are respectively connected to an input of the output-filter-circuit.
Abstract:
A power supplying apparatus includes a rectifier and a first electromagnetic interference (EMI) filter. The rectifier receives and rectifies an alternating current (AC) input power for generating a direct current (DC) power. The first EMI filter receives the DC power through a first power input terminal and a first reference input terminal thereof. The first EMI filter filters the DC power for generating a DC output power between a first power output terminal and a first reference output terminal thereof. The first EMI filter includes an inductor module, a first X capacitor, and a first Y capacitor.
Abstract:
Methods and apparatus for twin chamber processing systems are disclosed, and, in some embodiments, may include a first process chamber and a second process chamber having independent processing volumes and a plurality of shared resources between the first and second process chambers. In some embodiments, the shared resources include at least one of a shared vacuum pump, a shared gas panel, or a shared heat transfer source.
Abstract:
Methods and apparatus for calibrating a plurality of gas flows in a substrate processing system are provided herein. In some embodiments, a substrate processing system may include a cluster tool comprising a first process chamber and a second process chamber coupled to a central vacuum transfer chamber; a first flow controller to provide a process gas to the first process chamber; a second flow controller to provide the process gas to the second process chamber; a mass flow verifier to verify a flow rate from each of the first and second flow controllers; a first conduit to selectively couple the first flow controller to the mass flow verifier; and a second conduit to selectively couple the second flow controller to the mass flow verifier.
Abstract:
An automatic tilt speaker has a first subassembly of a speaker unit enclosing an ordinary speaker element. The speaker unit includes a cone-shaped housing having an inner cavity for holding the speaker with its frame or basket fitted snugly in an annular frame. The housing of the speaker unit is pivotally connected to the frame by a pivot arm. The speaker housing has an arcuate exterior wall extending in a radius centered about the pivot connection of the frame. Centrally of the arcuate wall, there is a gear arch, which comprises a vertical column of horizontally elongated teeth extending substantially coplanar with the arcuate wall. On the annular frame at the diametrically opposite side of the pivot connection a tilting system is operatively connected with the teeth. The tilting system includes a motor with a reduction gearbox for driving a worm gear, which in turn drives the gear arch. The annular frame also supports a relay-based motor control board for controlling the polarity and power to the motor. Combined with the power control is a position sensing system including three slight ramp surfaces on the arcuate wall of the speaker unit which translates into three segmented tilting angles to be remotely selected to the user's listening preference.
Abstract:
A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter further includes two transformers electrically connected to the resonant circuit, two synchronous controllers electrically connected to the primary sides of two transformers respectively, and two synchronous rectifiers electrically connected to the secondary sides of two transformers. The input power modified by the resonant circuit is obtained by the primary sides of two transformers, and two induced power are respectively produced at the secondary sides. Then, through sensing the polarity variation of the voltage, the two synchronous controllers individually provide a synchronous driving signal. Furthermore, the synchronous driving signals respectively drive two synchronous rectifiers to conduct alternatively, so as to rectify the induced power to the output terminal.
Abstract:
The present invention discloses a parameter configuration method for elements of a PFC function converter. The converter has a PFC circuit modulating an input power into a DC modulated power and a transformer transforming the DC modulated power into an output power. The method of the present invention comprises a storage capacitor configuration procedure, a storage inductor configuration procedure and a verification procedure. The storage capacitor configuration procedure predetermines a test voltage and a rated bus voltage lower than the test voltage, determines a parameter of the storage capacitor according to the test voltage and uses the storage capacitor to supply the rated bus voltage. The storage inductor configuration procedure determines an inductance of a storage inductor to match the storage inductor and the primary coil of the transformer work in a discontinuous current mode. The verification procedure verifies whether the power factor of the converter exceeds 0.9.