Abstract:
A sequential burst mode regulation system to deliver power to a plurality of loads. In the exemplary embodiments, the system of the present invention generates a plurality of phased pulse width modulated signals from a single pulse width modulated signal, where each of the phased signals regulates power to a respective load. Exemplary circuitry includes a PWM signal generator, and a phase delay array that receives a PWM signal and generates a plurality of phased PWM signals which are used to regulate power to respective loads. A frequency selector circuit can be provided that sets the frequency of the PWM signal using a fixed or variable frequency reference signal.
Abstract:
The invention discloses a driving method for a display. The method includes the following steps: providing a pixels structure; receiving a plurality of frames; driving the (2n−1)th scan line and the (2n)th scan line by turns while receiving the number of odd frame; driving (2n)th scan line and (2n−1)th scan line by turns while receiving the number of even frame; adjusting the voltage of the Vcom according to pixels voltage value which are the voltage to be written into the pixels by odd data lines and even data lines while the pixels structure receiving the number of odd frame and the number of the even frame.
Abstract:
The present invention provides a driving circuit with protection function for driving a set of external electrode fluorescent lamps (EEFL). The drive circuit includes: a transformer connected to the set of EEFLs; a switching network connected to the transformer which delivers power to the transformer; a sensing circuit connected to the set of EEFLs which detects disconnection if one light source is disconnected; and a controller connected to the switching network which controls the switching network to reduce the total current supplied to the EEFLs which remain connected, if the sensing circuit detects that one EEFL is disconnected. Appropriate protection can therefore be implemented when the EEFL is disconnected on one end or both ends.
Abstract:
An elevator control system (24) provides elevator dispatch and door control based on passenger data received from a video monitoring system. The video monitoring system includes a video processor (16) connected to receive video input from ut least one video camera (12). The video processor (16) tracks objects located within the field of view of the video camera, and calculates passenger data parameters associated with each tracked object. The elevator controller (24) provides elevator dispatch (26), door control (28), and security functions (30) based in part on passenger data provided by the video processor (16). The security functions may also be based in part on data from access control systems (14).
Abstract:
A mobile communication method is used for identifying a subscriber of a mobile communication device. The mobile communication method includes: sampling biometric information of the subscriber; generating an biometric analysis; generating digital signals according to the biometric analysis and an IMEI number; generating RF signals according to the digital signals and transmitting the RF signals; receiving the RF signals and transforming the RF signals to the digital signals; retrieving the biometric analysis and the IMEI number from the digital signals; comparing the biometric analysis and a user biometric profile; selecting a phone number according to the biometric analysis if the biometric analysis and the user biometric profile are the same; and transmitting the phone number to the mobile communication device based on the IMEI number. A mobile communication device and a mobile communication system are also provided.
Abstract:
A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stress on each transformer. For LCD panels that include longer CCFLs, a power supply is provided that includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series and each lamp is coupled to two secondary sides of the transformers, thereby reducing the problems associated with longer CCFL tubes. In any of the embodiments, the power supply can be adapted to convert a high voltage DC signal to high voltage AC used to power the lamps.
Abstract:
A pixel structure is provided. The pixel structure comprises a lower substrate with a transistor and pixel area; a first patterned conductive layer, which has a data line and a gate within the transistor area that is disposed on the lower substrate; a patterned insulator layer covering the first patterned conductive layer; an active layer disposed on the patterned insulator layer above the gate; a second patterned conductive layer with a gate line disposed on the patterned insulator layer, source and drain, wherein the source and the drain are disposed on the active layer; a pixel electrode disposed on the patterned insulator layer and electrically connected to the drain; a patterned passivation layer disposed on the patterned insulator layer, gate line, source, drain and pixel electrode; and a third patterned conductive layer, which has a data line connecting electrode, a gate line connecting electrode, at least one alignment electrode and a common electrode. The data line is electrically connected to the source through the data line connecting electrode; the gate line is electrically connected to the gate through the gate line connecting electrode; the alignment electrode is electrically connected to the pixel electrode; and a portion of the common electrode is disposed above the data line.
Abstract:
A sequential burst mode regulation system to deliver power to a plurality of loads. In the exemplary embodiments, the system of the present invention generates a plurality of phased pulse width modulated signals from a single pulse width modulated signal, where each of the phased signals regulates power to a respective load. Exemplary circuitry includes a PWM signal generator, and a phase delay array that receives a PWM signal and generates a plurality of phased PWM signals which are used to regulate power to respective loads. A frequency selector circuit can be provided that sets the frequency of the PWM signal using a fixed or variable frequency reference signal.
Abstract:
A CCFL power converter circuit is provided using a high-efficiency zero-voltage-switching technique that eliminates switching losses associated with the power MOSFETs. An optimal sweeping-frequency technique is used in the CCFL ignition by accounting for the parasitic capacitance in the resonant tank circuit. Additionally, the circuit is self-learning and is adapted to determine the optimum operating frequency for the circuit with a given load. An over-voltage protection circuit can also be provided to ensure that the circuit components are protected in the case of open-lamp condition.
Abstract:
A liquid crystal display panel with electrostatic discharge protection capability has an array substrate having an active area, a driver IC, a Vcom wire and an electrostatic reduction element formed on. The driver IC is formed beside the active area. The Vcom wire is formed around the active area and is connected with the electrostatic reduction element to the driver IC. When an electrostatic discharge current flows on the Vcom wire to the driver IC, the electrostatic reduction element mitigates or obviates damage to the driver IC.