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United States of America Patent
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Jun 1, 1999
Grant Date -
N/A
app pub date -
Jan 30, 1998
filing date -
Jan 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A durable, rigid, low-cost device to sense an impact of a ball over a wide area and to provide response to a user that said impact has occurred. The sensing mechanism is a low-cost acoustic sensor, acoustically coupled to an essentially single sheet of plastic material. Sensor electronics filter the input and measure amplitude to determine if a valid hit has occurred. If so, the device reports an activate signal to the response electronics that in turn provide feedback to the user by playing a digitally recorded audio message, recorded specifically for the event. Variously, the activate signal may be transmitted to a remote device that contains the response electronics.
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