Control unit for model vehicles
Patent 4572996 Issued on February 25, 1986. Estimated Expiration Date: 
April 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 19, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3380399 3763954 3811112 3874475 Speed control system for a corrugator Devices for controlling a speed restriction for vehicles, particularly motor vehicles Infrared transmitter and control circuit Remote control systems for toy vehicles, and the like System for identifying and displaying data transmitted by way of unique identifying frequencies from multiple vehicles Patent #: 4449114 InventorsAssigneeApplicationNo. 06/602183 filed on 04/19/1984US Classes:388/809, Armature control by digital or combined analog and digital circuitry180/167, WITH MEANS FOR CONTROLLING OPERATION RESPONSIVE TO ELECTROMAGNETIC RADIATION, MAGNETIC FORCE, OR SOUND WAVES RECEIVED FROM SOURCE, OR REFLECTED FROM OBJECT OR SURFACE, LOCATED APART FROM VEHICLE246/187A, Remote control318/16, SUPPLIED OR CONTROLLED BY SPACE-TRANSMITTED ELECTROMAGNETIC OR ELECTROSTATIC ENERGY (E.G., BY RADIO)318/39, Work and feed motors (e.g., indexing)318/599, Pulse-width modulated power input to motor (e.g., "duty cycle" systems)318/603, Pulse-counting systems340/825.69, Radio link388/904, Stored velocity profile388/912, Pulse or frequency counter446/455Via conductor adjacent to vehicle pathExaminersPrimary: Shoop, William M. Jr.Assistant: Ip, Shik Luen Paul Attorney, Agent or FirmInternational ClassesA63H 19/24 (20060101)A63H 19/00 (20060101) Foreign Application Priority Data1983-04-22 DEAbstractA control unit for model vehicles, such as model railway trains, model automobiles, etc. For independent operation of several model vehicles on a common electric circuit, it is known to allocate to each model vehicle a receiver coded in relation with hardware and controlled according to a binary word consisting of an address part and a data part. Control units of this type, however, have the disadvantage that they cannot be operated on analog electric circuits. With the invention, a control unit is proposed which independently switches off the digital control logic in the case of a change of the model vehicle from a digital trackage to an analog trackage, and enables operation of the model vehicle via an amplitude-controlled or pulse width-controlled analog signal.Field of SearchWork and feed motors (e.g., indexing)Pulse-width modulated power input to motor (e.g., "duty cycle" systems) SUPPLIED OR CONTROLLED BY SPACE-TRANSMITTED ELECTROMAGNETIC OR ELECTROSTATIC ENERGY (E.G., BY RADIO) Land vehicles Analogue comparison Synchro or resolver (e.g., transmitter simulators) Commutating switch-type encoder Frequency- or phase-modulated systems Phase comparison Pulse-counting systems Frequency comparison Digital comparison Digital or numerical systems | |
