SOLID-STATE SOUND EFFECT GENERATING SYSTEM
First Claim
1. In combination with an audio-visual amusement device of the type in which specific events are each accompanied by a corresponding predetermined sound effect, an improved system for selectively generating a plurality of said sound effects, comprising:
- a plurality of interchangeable plug-in printed circuit boards each having mounted thereon a solid-state electronic circuit capable of being actuated to independently develop an electrical output signal representative of a unique one of said sound effects;
each said electrical circuit comprising a random noise generator for developing an electrical signal having a random audio frequency spectrum, filtering means coupled to said random noise generator for obtaining an audio frequency signal having a preselected frequency characteristic, and means for modulating said preselected frequency signal to thereby develop said output signal;
electromechanical transducer means coupled to said circuits and responsive to said electrical output signal for converting said output signal into said sound effect;
a controL chassis having a corresponding plurality of jacks for interchangeably receiving and supporting said circuit boards, said chassis further having means for electrically interconnecting said received circuit boards; and
switching means coupled to said electronic circuits and responsive to the occurrence of any of said events for selectively actuating the corresponding electronic circuit to thereby simultaneously accompany a particular event with its associated sound effect.
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Accused Products
Abstract
A solid-state sound effect generating system for selectively producing any one of a plurality of predetermined sound effects has a plurality of interchangeable plug-in printed circuit boards each having mounted thereon an electronic circuit capable of being actuated to produce an electrical output signal representative of a unique one of a group of desired sound effects, without the use of any prerecorded signals or recording medium. The circuit boards are plugged into a common control chassis which interconnects them with an audio power amplifier and loudspeaker arrangement and which further provides input terminals for external triggering signals.
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Citations
4 Claims
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1. In combination with an audio-visual amusement device of the type in which specific events are each accompanied by a corresponding predetermined sound effect, an improved system for selectively generating a plurality of said sound effects, comprising:
- a plurality of interchangeable plug-in printed circuit boards each having mounted thereon a solid-state electronic circuit capable of being actuated to independently develop an electrical output signal representative of a unique one of said sound effects;
each said electrical circuit comprising a random noise generator for developing an electrical signal having a random audio frequency spectrum, filtering means coupled to said random noise generator for obtaining an audio frequency signal having a preselected frequency characteristic, and means for modulating said preselected frequency signal to thereby develop said output signal;
electromechanical transducer means coupled to said circuits and responsive to said electrical output signal for converting said output signal into said sound effect;
a controL chassis having a corresponding plurality of jacks for interchangeably receiving and supporting said circuit boards, said chassis further having means for electrically interconnecting said received circuit boards; and
switching means coupled to said electronic circuits and responsive to the occurrence of any of said events for selectively actuating the corresponding electronic circuit to thereby simultaneously accompany a particular event with its associated sound effect.
- a plurality of interchangeable plug-in printed circuit boards each having mounted thereon a solid-state electronic circuit capable of being actuated to independently develop an electrical output signal representative of a unique one of said sound effects;
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2. An electronic sound-generating system for selectively generating a plurality of sound effects, and adapted for use with an audio-visual amusement device of the type in which specific events are each accompanied by a corresponding predetermined sound effect, comprising:
- a plurality of interchangeable plug-in printed circuit boards each having mounted thereon a solid-state electronic circuit capable of being actuated to independently develop an electrical output signal representative of a unique one of said sound effects;
each said electrical circuit comprising a random noise generator for developing an electrical signal having a random audio frequency spectrum, filtering means coupled to said random noise generator for obtaining an audio frequency signal having a preselected frequency characteristic, and means for modulating said preselected frequency signal to there by develop said output signal;
electromechanical transducer means coupled to said circuits and responsive to said electrical output signal for converting said output signal into said sound effect;
a control chassis having a corresponding plurality of jacks for interchangeably receiving and supporting said circuit boards, said chassis further having means for electrically interconnecting said received circuit boards; and
switching means coupled to said electronic circuits and responsive to the occurrence of any of said events for selectively actuating the corresponding electronic circuit to thereby simultaneously accompany a particular event with its associated sound effect.
- a plurality of interchangeable plug-in printed circuit boards each having mounted thereon a solid-state electronic circuit capable of being actuated to independently develop an electrical output signal representative of a unique one of said sound effects;
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3. A circuit according to claim 1, in which said modulating means comprise an anode-gated silicon-controlled rectifier operated as a relaxation oscillator to modulate the amplitude of said preselected-frequency signal at a predetermined audio-frequency repetition rate.
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4. A circuit according to claim 3, in which said modulating means further comprises a free-running monostable multivibrator coupled to said relaxation oscillator to vary the frequency of oscillation of said oscillator at a predetermined rate.
Specification