Abstract: There is disclosed in one example a heat dissipator for an electronic apparatus, including: a planar vapor chamber having a substantially rectangular form factor, wherein a second dimension d2 of the rectangular form factor is at least approximately twice a first dimension d1 of the rectangular form factor; a first fan and second fan; and a first heat pipe and second heat pipe discrete from the planar vapor chamber and disposed along first and second d1 edges of the planar vapor chamber, further disposed to conduct heat from the first and second d1 edges to the first and second fan respectively.

Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).

Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).

Abstract: Techniques for implementing a scalable DOM and a pluggable DOM are provided. A scalable DOM implementation manages a DOM tree in memory to free unreferenced nodes, avoid generating nodes unnecessarily, and avoid storing multiple versions of the same data on disk. A pluggable DOM implementation includes an abstract interface that is defined between the API layer and the data layer of a DOM implementation. An implementation of the abstract interface is defined for each data source that is plugged in to the pluggable DOM implementation and that stores XML data in a different format.

Abstract: Techniques for implementing a scalable DOM and a pluggable DOM are provided. A scalable DOM implementation manages a DOM tree in memory to free unreferenced nodes, avoid generating nodes unnecessarily, and avoid storing multiple versions of the same data on disk. A pluggable DOM implementation includes an abstract interface that is defined between the API layer and the data layer of a DOM implementation. An implementation of the abstract interface is defined for each data source that is plugged in to the pluggable DOM implementation and that stores XML data in a different format.

Abstract: Techniques for implementing a schema-aware mid-tier binary XML are provided. Token vocabularies are stored in a repository that is accessible to mid-tier applications from separate database systems. The token vocabularies are thus shared among the mid-tier applications of each database system. The repository may be part of a file system or database that is separate from any of the database systems, or the repository may be part of one of the database systems.

Abstract: Approaches are described herein to represent a delta using the extensible style language transformation language (XSLT) to describe the delta between versions of a data entity. XSLT is a language that defines operations for transforming a body of data (“source”) that conforms to the extended mark-up language (XML) into a different body of data (“target”) typically in another format, such as HTML. A set of XML instructions represents a delta by specifying operations needed to transform or change a source version of an XML entity into a target version of an XML entity.

Abstract: Techniques for implementing a schema-aware mid-tier binary XML are provided. Token vocabularies are stored in a repository that is accessible to mid-tier applications from separate database systems. The token vocabularies are thus shared among the mid-tier applications of each database system. The repository may be part of a file system or database that is separate from any of the database systems, or the repository may be part of one of the database systems.

Abstract: Techniques for implementing a scalable DOM and a pluggable DOM are provided. A scalable DOM implementation manages a DOM tree in memory to free unreferenced nodes, avoid generating nodes unnecessarily, and avoid storing multiple versions of the same data on disk. A pluggable DOM implementation includes an abstract interface that is defined between the API layer and the data layer of a DOM implementation. An implementation of the abstract interface is defined for each data source that is plugged in to the pluggable DOM implementation and that stores XML data in a different format.

Abstract: Techniques for implementing a scalable DOM and a pluggable DOM are provided. A scalable DOM implementation manages a DOM tree in memory to free unreferenced nodes, avoid generating nodes unnecessarily, and avoid storing multiple versions of the same data on disk. A pluggable DOM implementation includes an abstract interface that is defined between the API layer and the data layer of a DOM implementation. An implementation of the abstract interface is defined for each data source that is plugged in to the pluggable DOM implementation and that stores XML data in a different format.

Abstract: A boost regulator includes a diode D connected between a node VX and an output node VOUT. The node VX is connected to ground by a first switch M1. A second switch M2 and an inductor L are connected in series between the node VX and an input node VIN. The regulator has an enabled state and a disabled state. In the enabled stage, a control circuit turns the second switch on and drives the first switch using a PFM, PWM or other strategy. In the disabled state, control circuit turns the second switch off to prevent current passing through the regulator to the load.

Abstract: A switching regulator includes a feedback network that generates a voltage Vea that is proportional to the difference between the output of the switching regulator and a reference voltage. A comparator is used to compare Vea to a sawtooth voltage to generate a voltage Vpwm. The voltage Vpwm drives a high-side switching transistor that controls the output of the regulator. A first clamping transistor that provides a variable gain connection between the voltage Vea and ground. As Vea rises above a predefined level, the clamping circuit increases the connection between Vea and ground, preventing Vea from substantially exceeding Vt. As a result, transient performance of the regulator is improved.

Abstract: A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit wherein one power amplification unit is electrically coupled to another amplification unit, each power amplification unit being electrically coupled to one or more of the lamps, adapted to generate a driving signal, and adapted to send the driving signal to the coupled lamp(s) for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one or more of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.

Abstract: A bandgap reference circuit includes two diode-connected transistors and an operational amplifier. The operational amplifier is connected in a feedback arrangement so that the current passing through transistor is substantially the same. This means that the current density in each transistor differs. The output of the operational amplifier is a function of the base emitter voltages of the two transistors and is substantially temperature invariant. Each transistor has a supplemental capacitor connected between its collector and emitter. The capacitors are substantially equal in size and both are substantially larger than the parasitic capacitance of either transistor. As a result, the overall capacitance of each transistor is substantially the same giving the reference circuit a favorable power supply rejection ratio.

Abstract: A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit wherein one power amplification unit is electrically coupled to another amplification unit, each power amplification unit being electrically coupled to one or more of the lamps, adapted to generate a driving signal, and adapted to send the driving signal to the coupled lamp(s) for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one or more of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.

Abstract: A LCD lighting control system comprises a lamp, a self-oscillation inverter, a sampling-frequency generating circuit, a detecting-feedback circuit, a modulator and a buck circuit. The LCD lighting control system samples at the preset sampling location in the self-oscillation inverter or the preset sampling location between the self-oscillation inverter and the buck circuit to synchronize the control signal from the modulator and the self-oscillation frequency, to suppress high-voltage ripple effect, and to enhance stability of the system.

Abstract: A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit arranged in loop, each power amplification unit being electrically coupled to one of the lamps, adapted to generate a synchronous signal, and adapted to send the synchronous signal to the coupled lamp for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.

Abstract: A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit arranged in loop, each power amplification unit being electrically coupled to one of the lamps, adapted to generate a synchronous signal, and adapted to send the synchronous signal to the coupled lamp for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.

Abstract: Disclosed is a novel class of thiazole, thiadiazole, and oxadiazole compounds which are substituted at their nuclear carbons by aromatic moieties. These compounds exhibit antifungal activity against a variety of fungi including strains which have proven to be resistant to treatment with known antifungal agents such as Fluconazole.

Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).