Patent References 3441887 3721958 Method of electrically interconnecting door components to main power supply in vehicle Current carrier tractor-trailer data link Contactless coaxial winding transformer power transfer system Frequency modulation digital code anti-theft system Antenna for an electronic apparatus Motor vehicle anti-theft device which blocks starting of the engine Patent #: 5528086 InventorsAssigneeApplicationNo. 373206 filed on 02/12/1996US Classes:307/10.1, Automobile307/104, ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS701/49Vehicle equipment position control (e.g., seat, mirror, door, window, headrest, or headlamp)ExaminersPrimary: Elms, RichardAttorney, Agent or FirmForeign Patent References
International ClassH01F 038/00Foreign Application Priority Data1992-07-08 DEAbstractElectric low current signals are transmitted through two-wire circuits having coaxial connectors which are closed by windings that are coupled transformer-like to the coaxial connectors. This arrangement allows transmission of control signals for electric power consuming devices within automobile doors, low frequency audio signals, and electrical power to power the electric consumers. All signals are transmitted on a common data cable. Control signals are in binary coded form, modulated onto a carrier signal, as are modulated, low frequency audio signals. The signals are demodulated in a door module and separated according to frequency. The low frequency audio signals are amplified and transmitted to a loudspeaker. The control signals are processed by a microprocessor controller in conjunction with switching units that create corrective actions for the power consuming devices located in the door.Other References
Field of SearchIgnition or starter circuitsIgnition or starting circuit lock Antitheft Coded record input (e.g., IC card) Automobile VEHICLE MOUNTED SYSTEMS Manual code input (e.g., push button) SUPERIMPOSED UNLIKE CURRENTS Different frequencies or phase Induction transformer ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS Relatively movable core and coils Coil and core movable as a unit Angularly movable Angularly movable About axis parallel to or coaxial with the other coil axis Nonsymmetrically pivoted coil movable on axis transverse to other coil axis LAND VEHICLE ALARMS OR INDICATORS Radio link Wireless link Plural frequencies By preventing unauthorized or unintended access or use With radio cabinet | |