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| Number | Title | Issue Date |
| 8179053 | Power supply for an LCD display 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 stres... | 05/15/2012 |
| 8169249 | Calibrating a system by setting difference between signals In a signal monitoring system, a circuit includes an input terminal and an output terminal. In addition, a processor coupled to the circuit is operable for calculating a parameter indicative of an error factor of the circuit by setting a level difference between an ... | 05/01/2012 |
| 8165020 | Network interface system with filtering function A network interface system for transferring a data packet between a host system and a network includes multiple matchers and multiple queues. The matchers match the data packet with multiple rules from the host system to generate multiple matching results and alloca... | 04/24/2012 |
| 8148942 | Charging systems with cell balancing functions In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance the set o... | 04/03/2012 |
| 8129982 | Voltage sensing circuits and methods for inverters A voltage sensing circuit includes a voltage divider and a voltage rectifier. The voltage divider divides a first output voltage on a first output voltage line to a first divided output voltage. The voltage divider comprises a first metal foil and a first capacitor.... | 03/06/2012 |
| 8125160 | Integrated circuit capable of synchronization signal detection A method according to one embodiment may include providing power to at least one light source. The method of this embodiment may also include detecting the frequency of at least one vertical synchronization signal, among a plurality of different synchronization sign... | 02/28/2012 |
| 8022669 | Battery management system A battery management system can include a battery having a plurality of cells, a plurality of devices coupled to the battery, and a control unit coupled to a first device of the devices. The devices can assess the statuses of the cells. The control unit can communic... | 09/20/2011 |
| 7936757 | Packet fragment reassembly An apparatus for packet fragment reassembly includes a memory and a fragment processing block coupled to the memory. The memory caches information contained in the headers of a plurality of packet fragments, wherein the plurality of packet fragments are identified a... | 05/03/2011 |
| 7936151 | Battery state monitoring circuitry with low power consumption during a stand-by-state of a battery pack A battery pack including at least one battery cell, a switch, and battery state monitoring circuitry. The battery state monitoring circuitry may be configured to control an ON resistance of the switch to a first ON resistance when the switch is ON and the battery pa... | 05/03/2011 |
| 7917947 | Secured communication channel between IT administrators using network management software as the basis to manage networks A network management system is used to secure a communications channel between at least two clients. The network management system includes a network management server which includes network management software. The network management server is coupled to the client... | 03/29/2011 |
| 7904433 | Apparatus and methods for performing a rule matching Apparatus and methods for performing a rule matching are disclosed. In one embodiment, an apparatus for performing a rule matching includes a content matching module and a first rule matching module. The content matching module searches the data stream for contents.... | 03/08/2011 |
| 7904096 | GPS application using network assistance A Global Positioning System (GPS) system includes multiple GPS application servers. The multiple GPS application servers provide GPS assistant information for locating a mobile terminal. The mobile terminal receives GPS information from multiple GPS satellites. The ... | 03/08/2011 |
| 7890741 | Low power digital audio decoding/playing system for computing devices A computer system includes a system CPU responsive to a control signal to load a first operating system or a second operating system. The first operating system is run by the computer system in a first operation mode and the second operating system is run by the com... | 02/15/2011 |
| 7888889 | Protection for external electrode fluorescent lamp system The present invention provides a protection means for a driving circuit which drives a set of external electrode fluorescent lamps (EEFL). The driving circuit with protection function for driving a set of EEFLs consistent with the present invention includes: a trans... | 02/15/2011 |
| 7881084 | DC/AC cold cathode fluorescent lamp inverter A DC/AC cold cathode fluorescent lamp (CCFL) inverter circuit includes a transformer with a primary winding and a secondary winding for providing increased voltage to a CCFL, a first and second MOSFET switches for selectively allowing direct current of a first polar... | 02/01/2011 |
| 7847491 | Sequential burst mode activation circuit 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... | 12/07/2010 |
| 7861091 | Smart card enabled secure computing environment system A smart card enabled secure computing environment system locks the host computer system from user access and waits for a smart card to be inserted into an attached or co-resident smart card reader. When a smart card is inserted into the smart card reader, the invent... | 12/28/2010 |
| 7822956 | Low power digital audio decoding/playing system for computing devices A computer system includes a system CPU responsive to a control signal to load a first operating system or a second operating system. The first operating system is run by the computer system in a first operation mode and the second operating system is run by the com... | 10/26/2010 |
| 7808548 | Power management for digital devices A method according to one embodiment includes coupling at least one power supply to a power bus comprised in a digital camera. The method of this embodiment may also include allocating power to at least one component of the digital camera by coupling at least one co... | 10/05/2010 |
| 7804273 | Selector circuit for power management in multiple battery systems A selector circuit configured to select among a DC power source and a plurality of batteries for an electronic device. The selector circuit includes a first comparator configured to compare a first input signal representative of a voltage level of the DC power sourc... | 09/28/2010 |
| 7791469 | Short range wireless tracking and event notification system for portable devices A method and system for tracking a portable device. A tracking system includes a portable device, a first Radio Frequency (RF) module, and a second RF module. The first Radio Frequency (RF) module is installed in the portable device for transmitting a wireless signa... | 09/07/2010 |
| 7777463 | System, method and apparatus to automatically detect a type of a variable output DC power source A method includes coupling a variable output DC power source to power control circuitry, and detecting a type of the variable output DC power source in response to the coupling operation. In one embodiment, the detecting operation may include sending an interrogatio... | 08/17/2010 |
| 7777425 | Backlight circuit for LCD panel A multi-lamp backlight system is disclosed. The multi-lamp backlight system includes a plurality of lamps, an inverter circuit and a current balance circuit. The inverter circuit is capable of converting a DC input signal to a pair of AC output signals, which have a... | 08/17/2010 |
| 7772882 | Robust and economic solution for FPGA bit file upgrade A system for FPGA (Field Programmable Gate Array) upgrade includes: an FPGA, a FLASH memory and a CPLD. The FLASH memory includes a first section configured to store a workable version of bit files for the FPGA and a second section configured to store a backup versi... | 08/10/2010 |
| 7768806 | Mixed-code DC/AC inverter A DC/AC inverter and method thereof are disclosed. The DC/AC inverter for driving a load includes a DC power supply for supplying a DC input voltage, a converter circuit coupled to the DC power supply which converts the DC input voltage into an AC signal used to dri... | 08/03/2010 |
| 7719247 | DC/DC converter with improved stability A DC/DC converter includes a switch, an inductor, a capacitor, a resistor, and a voltage divider. The switch is coupled to the input voltage. The inductor is used for coupling the first switch to an output node of the DC/DC converter so as to generate the output vol... | 05/18/2010 |
| 7719211 | Lamp current balancing topologies A method according to one embodiment may include generating AC voltage and current and a striking voltage. The method of this embodiment may also include generating striking voltage and steady-state voltage for at least two lamp loads. The method of this embodiment ... | 05/18/2010 |
| 7701177 | Battery pre-charging circuit comprising normal voltage and low voltage pre-charging circuits A battery pre-charging circuit includes a pre-charging path, a pre-charging switch and a low-voltage pre-charging circuit. The pre-charging path is coupled between a charger and a battery for providing a pre-charging current from the charger to the battery. The pre-... | 04/20/2010 |
| 7679324 | Non-common ground series bus physical layer implementation A communication circuit is used for transmitting data between a plurality of devices which have non-common ground voltages. The communication circuit comprises a plurality of transmitting input nodes coupled to the devices, respectively, a transmitting current path,... | 03/16/2010 |
| 7659702 | Buck topology allowing step-up and polarity change A buck topology that provides voltage step up and polarity change is disclosed. In one embodiment a converter includes an input for receiving an input voltage, a switching circuit coupled to the input for receiving a first driving signal, a floating voltage source c... | 02/09/2010 |
| 7656145 | Low power bandgap voltage reference circuit having multiple reference voltages with high power supply rejection ratio A voltage generator is used for generating a voltage reference with high power supply rejection. One embodiment of the circuit includes a voltage regulator and a bandgap voltage circuit and an amplifier. The voltage regulator including an input node is coupled to an... | 02/02/2010 |
| 7642750 | Battery charge/discharge control circuit A circuit is used for controlling charging and discharging a battery. The circuit comprises a first MOSFET for controlling discharging the battery, and a second MOSFET coupled in series to the battery and the first MOSFET for controlling charging the battery. The fi... | 01/05/2010 |
| 7622830 | Supply topology with power limiting feedback loop A supply topology comprising an AC to DC or DC to DC adapter and an electronic device with an active system, a battery, and an adapter controller implements closed-loop control of adapter output voltage to limit power consumption by the electronic device to a value ... | 11/24/2009 |
| 7615981 | Boost converter with enhanced control capabilities of emulating an inductor current A DC to DC converter for converting an input DC voltage to an output DC voltage. The DC to DC converter may include at least one switch, an inductor coupled to the at least one switch, and a controller capable of providing a control signal. The at least one switch m... | 11/10/2009 |
| 7615965 | Power management system A method according to one embodiment may include selecting at least one power supply, among a plurality of different power supplies, and coupling at least one available power supply to a load. The method may also include selecting at least one charging mode, among a... | 11/10/2009 |
| 7589499 | Over voltage transient controller An over voltage transient controller to protect a rechargeable battery from an over voltage transient condition. The over voltage transient controller may comprise a comparator to compare a first signal with a second signal representative of a reference voltage leve... | 09/15/2009 |
| 7586762 | Power supply circuit for LCD backlight and method thereof Power supply circuit for LCD backlight and method thereof are disclosed in the present invention. The power supply circuit includes a power bus, a boost converter, a buck converter and a controller. The power bus supplies power to a load. The boost converter and buc... | 09/08/2009 |
| 7554273 | Protection for external electrode fluorescent lamp system 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 whic... | 06/30/2009 |
| 7526349 | Low power digital audio decoding/playing system for computing devices A low-power digital audio decoding and playing system and method for computing devices provides a low-cost, low power-consumption, long-battery-life audio playing and decoding system, which may be used to play compressed audio files of various formats. In one aspect... | 04/28/2009 |
| 7522966 | Low power digital audio decoding/playing system for computing devices A low-power digital audio decoding and playing system and method for computing devices provides a low-cost, low power-consumption, long-battery-life audio playing and decoding system, which may be used to play compressed audio files of various formats. A software on... | 04/21/2009 |
