Boots – shoes – and leggings
Patent
1987-02-18
1989-06-06
Ruggiero, Joseph
Boots, shoes, and leggings
128777, 433 69, G06F 1542
Patent
active
048376850
ABSTRACT:
An improved analog preprocessor for a jaw tracking device having a plurality of magnetic sensors (44), each of which produces a first analog signal corresponding to the position of a magnet fixed with respect to the patient's mandible. The preprocessor includes analog means (200) for electrically combining the first analog signals to produce at least one analog position signal representing the position of the magnet along one axis, a gain select circuit (302) for providing a gain select signal, a variable slope ramp generator that provides a ramp signal having a slope corresponding to the gain select signal, a comparator for comparing the position and ramp signals and generating an output pulse having a length corresponding to the magnitude of the position signal, and a low pass filter for receiving the output pulse and producing an analog movement signal having a magnitude corresponding to the pulse length.
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Hayes Gail O.
Myo-Tronics Research Inc.
Ruggiero Joseph
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