Abstract: A system for charging a vehicle-mounted battery comprising a vehicle, a battery, a plurality of electrical contacts, wherein the plurality of electrical contacts is coupled to the vehicle and at least one of the plurality of electrical contacts is electrically connected to the battery, a plurality of electric power transfer components, wherein at least one of the plurality of electric power transfer components rotates about an axis, and wherein each of the plurality of electric power transfer components is configured to prevent undesired connections between the plurality of electric power transfer components and the vehicle, and a power source.

Abstract: A system for charging a vehicle-mounted battery comprising a vehicle, a battery, a plurality of electrical contacts, wherein the plurality of electrical contacts is coupled to the vehicle and at least one of the plurality of electrical contacts is electrically connected to the battery, a plurality of electric power transfer components, wherein at least one of the plurality of electric power transfer components rotates about an axis, and wherein each of the plurality of electric power transfer components is configured to prevent undesired connections between the plurality of electric power transfer components and the vehicle, and a power source.

Abstract: A system for charging a vehicle-mounted battery comprising a vehicle, a battery, a plurality of electrical contacts, wherein the plurality of electrical contacts is coupled to the vehicle and at least one of the plurality of electrical contacts is electrically connected to the battery, a plurality of electric power transfer components, wherein at least one of the plurality of electric power transfer components rotates about an axis, and wherein each of the plurality of electric power transfer components is configured to prevent undesired connections between the plurality of electric power transfer components and the vehicle, and a power source.

Abstract: A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

Abstract: A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

Abstract: A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

Abstract: A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

Abstract: A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal generator from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.