Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1998-09-21
2000-10-10
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
G01S 1500
Patent
active
061308587
ABSTRACT:
An ultrasonic sensor to monitor motion and position to provide interactive feedback to an individual during exercise or play. The sensor can measure distance and speed, count repetitions and calculate cumulative energy spent in an activity. The sensor has a display and an audio generator to provide interactive feedback to the individual. The sensor has a card port which can accept small program chips chosen by the user to add functions, enhancements or applications.
REFERENCES:
patent: 4559015 (1985-12-01), Felesky
patent: 5979239 (1999-11-01), Youngquist et al.
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