Abstract: A ceiling lamp and a chassis are provided. The ceiling lamp includes a chassis and a light source module; the chassis includes a surrounding wall and a partition disposed within the surrounding wall, the partition divides a region surrounded by the surrounding wall into an assembly recess with a downward opening and a wiring recess with an upward opening; part of the partition protrudes upwardly into the wiring recess and forms a light source recess with a downward opening and an upward recess bottom, and the light source module is provided in the light source recess. The chassis includes a surrounding wall and a partition disposed within the surrounding wall, the partition divides a region surrounded by the surrounding wall into an assembly recess with a downward opening and a wiring recess with an upwardly opening.

Abstract: The present invention relates to a multi-carrier resource allocation method based on a wireless-powered backscatter communication network. The method comprises following steps: S1.

Abstract: A ceiling lamp and a chassis are provided. The ceiling lamp includes a chassis and a light source module; the chassis includes a surrounding wall and a partition disposed within the surrounding wall, the partition divides a region surrounded by the surrounding wall into an assembly recess with a downward opening and a wiring recess with an upward opening; part of the partition protrudes upwardly into the wiring recess and forms a light source recess with a downward opening and an upward recess bottom, and the light source module is provided in the light source recess. The chassis includes a surrounding wall and a partition disposed within the surrounding wall, the partition divides a region surrounded by the surrounding wall into an assembly recess with a downward opening and a wiring recess with an upwardly opening.

Abstract: System and method for operating a motor using a single general purpose input/output (GPIO) pin of a controller. In one embodiment, a control circuit may include a first terminal coupled to a GPIO pin of a controller. The first terminal can be configured to receive, and output, at least one or more signals. The control circuit may include a plurality of elements coupled to the first terminal, and motor driver circuit output terminal, such that the control circuit may be configured to output one more control signals to the motor driver circuit output terminal for control the motor driver circuit. Motor driver control signals may be based, at least in part, on one or more signals received from the first terminal.

Abstract: System and method for operating a motor using a single general purpose input/output (GPIO) pin of a controller. In one embodiment, a control circuit may include a first terminal coupled to a GPIO pin of a controller. The first terminal can be configured to receive, and output, at least one or more signals. The control circuit may include a plurality of elements coupled to the first terminal, and motor driver circuit output terminal, such that the control circuit may be configured to output one more control signals to the motor driver circuit output terminal for control the motor driver circuit. Motor driver control signals may be based, at least in part, on one or more signals received from the first terminal.

Abstract: A method of having multiple devices share a circuit's input/output (I/O) terminals includes applying first and second input signals to first and second I/O terminals to generate first and second output signals at the second and first I/O terminals, respectively. The first and second I/O terminals are coupled to first, second, and third devices via a plurality of signal paths. The method determines which, if any, of the first, second, and third devices is activated based on the first and second output signals. In some embodiments, the three devices correspond to three key switches of a keyboard through which a user can enter operation instructions. In some other embodiments, the three devices correspond to three signal receivers, which are controlled by a local or remote signal source that transmits activation signals in a wired or wireless manner.

Abstract: A method of having multiple devices share a circuit's input/output (I/O) terminals includes applying first and second input signals to first and second I/O terminals to generate first and second output signals at the second and first I/O terminals, respectively. The first and second I/O terminals are coupled to first, second, and third devices via a plurality of signal paths. The method determines which, if any, of the first, second, and third devices is activated based on the first and second output signals. In some embodiments, the three devices correspond to three key switches of a keyboard through which a user can enter operation instructions. In some other embodiments, the three devices correspond to three signal receivers, which are controlled by a local or remote signal source that transmits activation signals in a wired or wireless manner.

Abstract: A floating swimming pool apparatus that is more stable, stronger, and lighter than existing floating swimming pools is provided. In one aspect, the invention is a floating pool comprising a support structure comprising a deck portion forming an opening, a plurality of floater assemblies, a tray extending downward from the deck portion, and one or more transverse rods having a first and second ends, the first and second ends of the transverse rods being supported by opposing sides of the tray so that the transverse rods pass below the opening; and a water retaining enclosure comprising a floor and side walls, the water retaining portion positioned in the opening so that the side walls of the water retaining enclosure are at or near the deck portion and the floor rests atop and is supported by the transverse rods. In another aspect, the invention is a floating swimming pool wherein its main structural components are constructed of a water proof glass fiber reinforced plastic.