A - Human Necessities – 63 – H
Patent
A - Human Necessities
63
H
346/20, 46/62
A63H 30/02 (2006.01) A63H 19/24 (2006.01) B61L 7/08 (2006.01) H02J 13/00 (2006.01)
Patent
CA 1134487
ABSTRACT "IMPROVEMENTS IN OR RELATING TO THE REMOTE CONTROL OF ELECTRICAL DEVICES" A remote control system for use e.g. in controlling the locomotives and ancillary devices of a model train layout comprises a transmitter and a number of receivers incorporated in the devices to be controlled. A composite waveform is applied across the tracks, comprising a rectangular power supply waveform with intervals between positive and negative path cycles and control signals which occur in the latter parts of these intervals, the delay between the end of each half cycle and the control signals allowing time for reactive currents resulting from inductive loads to decay. The composite waveform is synthesised by two switching amplifiers driven by a microprocessor and having associated with it slider controls and a keyboard for controlling the receivers. The receivers are programmed to identify control signals addressed to them and to control an associated locomotive or an ancillary device appropriately. The address to which each receiver responds can be programmed by selective breaking of a number of tabs on a circuit board on which the receiver IC is mounted.
332913
Rovex Limited (trading As Hornby Hobbies)
Swabey Ogilvy Renault
LandOfFree
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