Abstract: A voltage-regulating drive circuit for an LED luminaire is disclosed. The drive circuit includes one or several series of LED light engines. A voltage source with a regulator is connected to the series of LED light engines to forward-bias the light engines. The circuit also includes a driver integrated circuit, which may drive the series of LED light engines using, e.g., pulse-width modulation (PWM). The circuit also includes a feedback circuit connected to the cathode end of the series of LED light engines. The feedback circuit receives a remainder voltage and creates a feedback output signal that upregulates or downregulates the regulator of the voltage source to keep a minimum operating voltage on the driver integrated circuit and to compensate for variations in forward voltages among LED light engines in the series.

Abstract: A voltage-regulating drive circuit for an LED luminaire is disclosed. The drive circuit includes one or several series of LED light engines. A voltage source with a regulator is connected to the series of LED light engines to forward-bias the light engines. The circuit also includes a driver integrated circuit, which may drive the series of LED light engines using, e.g., pulse-width modulation (PWM). The circuit also includes a feedback circuit connected to the cathode end of the series of LED light engines. The feedback circuit receives a remainder voltage and creates a feedback output signal that upregulates or downregulates the regulator of the voltage source to keep a minimum operating voltage on the driver integrated circuit and to compensate for variations in forward voltages among LED light engines in the series.

Abstract: A drive circuit for an LED luminaire is disclosed. The drive circuit includes one or several series of LED light engines. A voltage source with a regulator is connected to the series of LED light engines to forward-bias the light engines. The circuit also includes an integrated circuit driver, which may drive the series of LED light engines using, e.g., pulse-width modulation (PWM). The circuit also includes a feedback circuit connected to the cathode end of the series of LED light engines. The feedback circuit receives a remainder voltage and creates a feedback output signal that upregulates or downregulates the regulator of the voltage source to keep a minimum operating voltage on the integrated circuit driver and also to compensate for variations in forward voltages among LED light engines in the series. A switching element, such as a bipolar junction transistor, protects the driver from high voltages.

Abstract: Lighting circuits using LED light engines and strips of linear lighting using these circuits are described. The lighting circuits are designed to produce different levels of light output at least in part using onboard components. In some embodiments, the circuit contains several current-setting elements, such as resistors, which are coupled to their own terminals such that the light output of the lighting circuit is determined by which of the terminals are connected to power. In other embodiments, a transistor in the lighting circuit may be adapted to allow or prevent current flow in the circuit based on a control signal applied to its gate. The circuit thus has separate power and control signal lines, and an external device, such as a pulse-width modulation signal generator, may be applied to the control signal line to modulate the light output.

Abstract: Lighting circuits and strips of linear lighting that can accept either a lower voltage or a higher voltage are disclosed. In the lighting circuit, a repeating block including LED light engines and current-setting elements is divided into two sub-blocks. Terminals are provided that allow the sub-blocks to be connected to voltage and ground in various ways. When the two sub-blocks are connected electrically in parallel with one another, the lighting circuit accepts the lower voltage; when the two sub-blocks are connected electrically in series with one another, the lighting circuit accepts the higher voltage. Circuitry that automatically detects the applied voltage and switches between series and parallel configurations may be included in some embodiments.

Abstract: Apparatus for printing a graphic image on a substrate, a method performed thereby and a card for use in the apparatus, the apparatus being composed of: a computer containing a motherboard which carries a card connector and random access memory, the computer being controlled by an operating system; a controller for storing image data in the random access memory; a card connected to the card connector and having a printing device interface and components for transferring stored image data from the random access memory to the printing device interface; and a digital color printing device connected to the printing device interface for printing the graphic image on the substrate on the basis of stored image data transferred from the random access memory.

Abstract: The present invention provides a system and device for a network hub that includes a single valued resistor placed in series with each transmission line such that reflected and other unwanted waves in the transmission line are rapidly dampened to prevent interference and errors in transmission. The present invention also provides a method and system for determining an appropriate single valued resistor serially placeable within a transmission line in a network such that reflected and other unwanted waves in the transmission line are rapidly dampened to prevent interference and errors in transmission. The present invention locates the single valued resistors on a network hub board. The present invention further provides resistors having resistance of approximately 22 ohms for use with a wide range of impedance transmission lines and signal baud rates.

Abstract: Apparatus for printing a graphic image on a substrate, a method performed thereby and a card for use in the apparatus, the apparatus being composed of: a computer containing a motherboard which carries a card connector and random access memory, the computer being controlled by an operating system; a controller for storing image data in the random access memory; a card connected to the card connector and having a printing device interface and components for transferring stored image data from the random access memory to the printing device interface; and a digital color printing device connected to the printing device interface for printing the graphic image on the substrate on the basis of stored image data transferred from the random access memory.

Abstract: A coin operated type gaming machine combines accepting multiple denomination coins of a selected currency, multiple kinds of games with different types of supplemental side bets, paying out of winnings in the same currency, configurable LCD input means for a selected game and networking capability.