Toy vehicle with electronic sounder and direction sensor
First Claim
1. In a toy wheeled vehicle including electronic sound generating means for generating a sound when said vehicle is at rest and when said vehicle is moving but which changes when said vehicle is moved, the improvement comprising:
- means for determining whether said vehicle is moving in a forward or reverse direction, andmeans for generating a second sound different from said first-mentioned sound when said determining means determines that said vehicle is moving in a reverse direction, said second sound being generated concurrently with said first-mentioned sound.
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Reexamination
Accused Products
Abstract
A toy wheeled vehicle such as a toy truck which is intended to be pushed along by a child includes electronic circuitry which is capable of emitting a plurality of different sounds similar to the sounds of a real truck. The actual sound of a truck'"'"'s internal combustion engine is digitized and stored in a microprocessor along with other sounds such as those generated by a starter motor, horn, backup beeper and the like. In addition, the microprocessor is capable of synthesizing additional realistic vehicle sounds such as those generated by air brakes and the like. A starter switch first activates the starter motor sound and then the engine sound at idle speed. A speed sensor senses both speed and direction of travel and varies the engine sound in response to the sensed speed. The backup beeper sound is automatically generated along with the engine sound when the truck is moved in reverse. The microprocessor not only stores all of the digitized sounds but also controls all of the operations of the truck.
84 Citations
24 Claims
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1. In a toy wheeled vehicle including electronic sound generating means for generating a sound when said vehicle is at rest and when said vehicle is moving but which changes when said vehicle is moved, the improvement comprising:
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means for determining whether said vehicle is moving in a forward or reverse direction, and means for generating a second sound different from said first-mentioned sound when said determining means determines that said vehicle is moving in a reverse direction, said second sound being generated concurrently with said first-mentioned sound. - View Dependent Claims (2, 3, 4)
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5. In a toy wheeled vehicle including electronic sound generating means for generating a sound representing the noise of an internal combustion engine when said vehicle is at rest and when said vehicle is moving, the improvement comprising:
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means for determining whether said vehicle is moving in a forward or reverse direction, and means for generating a second sound different from said first-mentioned sound when said determining means determines that said vehicle is moving in a reverse direction, said second sound being generated concurrently with said first-mentioned sound.
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6. In a toy vehicle including electronic sound generating means mounted therein, the improvement comprising:
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means for generating a first sound corresponding to the noise of an electric starter motor; means for generating a second sound corresponding to the noise of an internal combustion engine; switch means mounted on said vehicle including a manually operable three position switch adapted to be moved in sequence between an off position, an on position and a start position; said generating means and said switch means being connected such that when said switch is in said off position and first moved into said on position no sounds are generated, when said switch is moved into said start position said electric starter noise is generated and when said switch is thereafter moved back to said on position said engine noise is generated. - View Dependent Claims (7, 8)
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9. In a toy wheeled vehicle including electronic sound generating means mounted within said vehicle, the improvement comprising:
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means for generating a first sound corresponding to the noise of an electric starter motor; means for generating a second sound corresponding to the noise of an internal combustion engine; switch means including a manually operable switch mounted on said vehicle and adapted to be moved between a first position and a second position; timing means; said switch means initiating said timing means when moved into said second position, and means responsive to said timing means for first activating said starter motor noise generating means and soon thereafter activating said engine noise generating means when said timing means reaches a predetermined time duration. - View Dependent Claims (10, 11)
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12. In a toy wheeled vehicle including electronic sound generating means for generating sounds corresponding to the sounds of a full size vehicle from which the toy is modeled, the improvement comprising:
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solid state electronic circuit means including memory means and having vehicle sounds digitally stored in said memory means; digital to analog signal converting means for converting said stored digital sounds into an analog signal, and transducer means connected to the output of said analog to digital converter means. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification