Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-03-03
1989-10-24
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04R 2900
Patent
active
048767212
ABSTRACT:
A method and device have been provided for distinguishing Africanized honeybees from European honeybees. The method is based on the discovery of a distinct difference in the acoustical signatures of these two species of honeybees in flight. The European honeybee signature has a fundamental power peak in the 210 to 240 Hz range while the Africanized honeybee signature has a fundamental power peak in the 260 to 290 Hz range. The acoustic signal produced by honeybees is analyzed by means of a detecting device to quickly determine the honeybee species through the detection of the presence of frequencies in one of these distinct ranges. The device includes a microphone for acoustical signal detection which feeds the detected signal into a frequency analyzer which is designed to detect the presence of either of the known fundamental wingbeat frequencies unique to the acoustical signatures of these species as an indication of the identity of the species and indicate the species identity on a readout device.
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Buchanan Michael E.
Kerr Howard T.
Valentine Kenneth H.
Chin Tommy P.
Martin Marietta Energy Systems Inc.
Spicer James M.
Winchell Bruce M.
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