Remote control for model train system
First Claim
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1. FOR USE IN A MODEL VEHICLE CONTROL SYSTEM OF THE CLASS IN WHICH A TRACK SYSTEM, ENERGIZED BY ALTERNATING CURRENT PROVIDES A COMMON SOURCE FOR A NUMBER OF POLARITY SENSITIVE VEHICLE MOTORS EACH HAVING TUNED RECEIVER CIRCUITS FOR SWITCHING THE MOTORS ON FOR THE REMAINDER OF THE HALF CYCLE OF THE SOURCE FOLLOWING THE APPLICATION TO THE TRACK SYSTEM OF A HIGH FREQUENCY PULSE TO WHICH THE CORRESPONDING RECEIVER CIRCUIT IS TUNED:
- A NUMBER OF REMOTE CONTROL CIRCUITS, EACH INCLUDING AN OSCILLATOR, AN AMPLIFIER CIRCUIT FOR THE OSCILLATOR, AND GATING MEANS FOR PASSING THE OSCILLATOR SIGNALS TO THE AMPLIFIER CIRCUIT FOR A SHORT INTERVAL DURING A SELECTED PORTION OF THE SOURCE CYCLE;
EACH OF SAID GATING MEANS INCLUDING A CONTROLLABLE DEVICE HAVING ALTERNATE STATES;
MEANS CAUSING THE AMPLIFIER TO BE INSENSITIVE TO THE OSCILLATOR SIGNALS WHEN THE DEVICE IS IN ONE OF ITS STATES AND SENSITIVE TO THE OSCILLATOR SIGNALS WHEN THE DEVICE IS IN THE OTHER OF ITS STATE;
A BIAS CIRCUIT FOR SAID DEVICE AND CAUSING IT NORMALLY TO BE IN ITS SAID ONE STATE;
A CONDENSER;
SWITCHING CIRCUIT MEANS PROVIDING ALTERNATE CHARGING AND DISCHARGING CIRCUITS FOR SAID CONDENSER;
THROTTLE MEANS FOR CAUSING THE SWITCHING CIRCUIT MEANS TO OPERATE AT THE FREQUENCY OF THE SOURCE AND AT A SELECTED PHASE ANGLE WITH RESPECT THERETO;
AND MEANS DERIVING PULSES FROM SAID CONDENSER AS THE SWITCHING CIRCUIT MEANS IS OPERATED FOR MOMENTARILY CHANGING THE BIAS CIRCUIT TO CAUSE SAID GATING DEVICE TO ASSUME ITS OTHER STATE FOR A SHORT INTERVAL DURING EACH CYCLE.
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1 Claim
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1. FOR USE IN A MODEL VEHICLE CONTROL SYSTEM OF THE CLASS IN WHICH A TRACK SYSTEM, ENERGIZED BY ALTERNATING CURRENT PROVIDES A COMMON SOURCE FOR A NUMBER OF POLARITY SENSITIVE VEHICLE MOTORS EACH HAVING TUNED RECEIVER CIRCUITS FOR SWITCHING THE MOTORS ON FOR THE REMAINDER OF THE HALF CYCLE OF THE SOURCE FOLLOWING THE APPLICATION TO THE TRACK SYSTEM OF A HIGH FREQUENCY PULSE TO WHICH THE CORRESPONDING RECEIVER CIRCUIT IS TUNED:
- A NUMBER OF REMOTE CONTROL CIRCUITS, EACH INCLUDING AN OSCILLATOR, AN AMPLIFIER CIRCUIT FOR THE OSCILLATOR, AND GATING MEANS FOR PASSING THE OSCILLATOR SIGNALS TO THE AMPLIFIER CIRCUIT FOR A SHORT INTERVAL DURING A SELECTED PORTION OF THE SOURCE CYCLE;
EACH OF SAID GATING MEANS INCLUDING A CONTROLLABLE DEVICE HAVING ALTERNATE STATES;
MEANS CAUSING THE AMPLIFIER TO BE INSENSITIVE TO THE OSCILLATOR SIGNALS WHEN THE DEVICE IS IN ONE OF ITS STATES AND SENSITIVE TO THE OSCILLATOR SIGNALS WHEN THE DEVICE IS IN THE OTHER OF ITS STATE;
A BIAS CIRCUIT FOR SAID DEVICE AND CAUSING IT NORMALLY TO BE IN ITS SAID ONE STATE;
A CONDENSER;
SWITCHING CIRCUIT MEANS PROVIDING ALTERNATE CHARGING AND DISCHARGING CIRCUITS FOR SAID CONDENSER;
THROTTLE MEANS FOR CAUSING THE SWITCHING CIRCUIT MEANS TO OPERATE AT THE FREQUENCY OF THE SOURCE AND AT A SELECTED PHASE ANGLE WITH RESPECT THERETO;
AND MEANS DERIVING PULSES FROM SAID CONDENSER AS THE SWITCHING CIRCUIT MEANS IS OPERATED FOR MOMENTARILY CHANGING THE BIAS CIRCUIT TO CAUSE SAID GATING DEVICE TO ASSUME ITS OTHER STATE FOR A SHORT INTERVAL DURING EACH CYCLE.
- A NUMBER OF REMOTE CONTROL CIRCUITS, EACH INCLUDING AN OSCILLATOR, AN AMPLIFIER CIRCUIT FOR THE OSCILLATOR, AND GATING MEANS FOR PASSING THE OSCILLATOR SIGNALS TO THE AMPLIFIER CIRCUIT FOR A SHORT INTERVAL DURING A SELECTED PORTION OF THE SOURCE CYCLE;
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Current AssigneeDonald J. Leslie
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Original AssigneeDonald J. Leslie
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InventorsLeslie, Donald J.
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Application NumberUS04/296,590Time in Patent Office1,373 DaysField of SearchUS Class Current104/300CPC Class CodesA63H 19/24 Electric toy railways; Syst...
