Amusement devices: toys – Rolling or tumbling – Remotely controlled
Patent
1994-01-18
1995-05-09
Harrison, Jessica J.
Amusement devices: toys
Rolling or tumbling
Remotely controlled
446484, 446292, 318478, 273460, A63H 3000
Patent
active
054135184
ABSTRACT:
A proximity responsive toy includes a motor-driven drive unit for propelling the toy, and a variable frequency oscillator unit including a capacitor plate for sensing approach of a capacitive body and having a frequency output that decreases in response to proximity of the capacitive body from the toy. A programmable frequency divider receives and divides the frequency output by a predetermined factor. A programmable microcomputer control unit includes a counter unit which generates a count output corresponding to a divided frequency output from the divider, a programmable timer unit which controls a register unit to store the count output therein a predetermined time period after activation of the power supply unit, a reset unit which resets the counter unit, the register unit and the timer unit upon activation of the power supply unit, a programmable offset value generating unit for generating a predetermined offset value, an adder for generating an output corresponding to the sum of the count output and the offset value, and a comparator unit controlled by the timer unit to compare the output of the adder and contents of the register unit periodically. The comparator unit activates the drive unit for a predetermined period when the output of the adder is less than the contents of the register unit.
REFERENCES:
patent: 3384074 (1968-05-01), Rautiola et al.
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patent: 4272916 (1981-06-01), Giordano et al.
patent: 5019804 (1991-05-01), Fraden
patent: 5081406 (1992-01-01), Hughes et al.
patent: 5267886 (1993-12-01), Wood et al.
patent: 5324225 (1994-06-01), Satoh et al.
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