Abstract: A voltage control circuit is disclosed. A power factor corrector may utilize the control circuit to provide power factor correction for an AC induction motor. An AC induction motor system may combine the power factor correct with an AC induction motor.

Abstract: Embodiments of a system, topology, and method for controlling the operation of several devices based on various parameters via RF signals communicated on existing RF infrastructure are described generally herein. Other embodiments may be described and claimed.

Abstract: A voltage control circuit is disclosed. A power factor corrector may utilize the control circuit to provide power factor correction for an AC induction motor. An AC induction motor system may combine the power factor correct with an AC induction motor.

Abstract: A voltage control circuit is disclosed. A power factor corrector may utilize the control circuit to provide power factor correction for an AC induction motor. An AC induction motor system may combine the power factor correct with an AC induction motor.

Abstract: A telecommunications system provides service to a cellular device located within a radio-frequency (RF) shadow of a communication station. The system may include a line-of-sight (LOS) antenna located in a line of sight of the station and a shadow antenna in communication with the LOS antenna and located within a line of sight of the RF shadow. The LOS antenna receives a transmitter signal from the station, and the shadow antenna receives a cellular signal from the cellular device. The LOS antenna also receives the cellular signal from the shadow antenna and, in turn, transmits the cellular signal to the station. Similarly, the shadow antenna receives the transmitter signal from the LOS antenna and, in turn, transmits the transmitter signal to the RF shadow. Accordingly, the cellular device is able to receive the transmitter signal T, and the station is able to receive the cellular signal.

Abstract: Method and apparatus for deterring theft of manually operated wheeled vehicles, reducing unauthorized use and removal of steel or steel and plastic constructed swivel-wheel shopping carts by preventing the free movement of one or more of the installed wheels. Attached to the frame of the shopping cart, a braking device in accordance with the present invention, when activated, measures the distance traveled beyond an activating point by counting the number of wheel rotations made by the cart and compares this to a preprogrammed stored attribute that defines the allowable distance the cart is allowed to travel once outside the shopping facility. Depending on the direction the cart is travelling, the counter is "armed" or "disarmed" when the cart passes over low-frequency magnetic arrays placed at the entry or exit of the shopping facility.