Abstract: The method receives a visual specification, which specifies a data source, visual variables, and data fields from the data source. Each visual variable is associated with data fields and each data field is either a dimension or a measure. From an object model of the data source, the method identifies a minimal subtree that includes all of the dimension data fields and constructs a query from the minimal subtree. The method executes the query against the data source to retrieve a set of tuples, each tuple comprising a unique ordered combination of data values for the dimension data fields. For each tuple, the method forms an extended tuple by appending aggregated data values corresponding to each measure data field. The method then builds and displays a data visualization according to the data fields in the extended tuples and according to the visual variables to which the data fields are associated.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator 1C to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor 1C.

Abstract: An electronic candle includes a housing, an LED light source, a battery, and one or more sensors to detect a blow of air or a tilt of the electronic candle. The electronic candle further includes a microprocessor that is coupled to the LED light source, to the blow sensor and to the tilt sensor. The microprocessor is programmed to control illumination produced by the LED light source, to receive signals indicative of the detection of a blow, and to detect a tilt of the electronic candle.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator 1C to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor 1C.

Abstract: An electronic candle (10) which simulates a flickering flame is provided. The candle (10) includes a hollow shell (12), a light-emitting element (18) such as an LED and a cap member (20) having the contour of a burning flame covering the light-emitting element (18). An electromagnet is provided to swing the light-emitting element (18). The electromagnet is mounted on a bracket (26) and receives an alternating current. A holding member (40) has a dead weight (52) at one end and the light-emitting element (18) at the other end. A permanent magnet (54) is attached to the bottom of the dead weight (52) such that when an alternating current is applied to the electromagnet it creates a magnetic field for acting on the permanent magnet (54) causing the holding member (40) to swing along an axial direction of the bracket (26).

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: An electronic candle (10) which simulates a flickering flame is provided. The candle (10) includes a hollow shell (12), a light-emitting element (18) such as an LED and a cap member (20) having the contour of a burning flame covering the light-emitting element (18). An electromagnet is provided to swing the light-emitting element (18). The electromagnet is mounted on a bracket (26) and receives an alternating current. A holding member (40) has a dead weight (52) at one end and the light-emitting element (18) at the other end. A permanent magnet (54) is attached to the bottom of the dead weight (52) such that when an alternating current is applied to the electromagnet it creates a magnetic field for acting on the permanent magnet (54) causing the holding member (40) to swing along an axial direction of the bracket (26).

Abstract: An electronic candle (10) which simulates a flickering flame is provided. The candle (10) includes a hollow shell (12), a light-emitting element (18) such as an LED and a cap member (20) having the contour of a burning flame covering the light-emitting element (18). An electromagnet is provided to swing the light-emitting element (18). The electromagnet is mounted on a bracket (26) and receives an alternating current. A holding member (40) has a dead weight (52) at one end and the light-emitting element (18) at the other end. A permanent magnet (54) is attached to the bottom of the dead weight (52) such that when an alternating current is applied to the electromagnet it creates a magnetic field for acting on the permanent magnet (54) causing the holding member (40) to swing along an axial direction of the bracket (26).

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: An electronic candle (10) which simulates a flickering flame is provided. The candle (10) includes a hollow shell (12), a light-emitting element (18) such as an LED and a cap member (20) having the contour of a burning flame covering the light-emitting element (18). An electromagnet is provided to swing the light-emitting element (18). The electromagnet is mounted on a bracket (26) and receives an alternating current. A holding member (40) has a dead weight (52) at one end and the light-emitting element (18) at the other end. A permanent magnet (54) is attached to the bottom of the dead weight (52) such that when an alternating current is applied to the electromagnet it creates a magnetic field for acting on the permanent magnet (54) causing the holding member (40) to swing along an axial direction of the bracket (26).

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.

Abstract: A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.