Communications – electrical: acoustic wave systems and devices – Transponders – Sonobuoys and sonobuoy systems
Patent
1978-05-08
1982-01-05
Birmiel, Howard A.
Communications, electrical: acoustic wave systems and devices
Transponders
Sonobuoys and sonobuoy systems
367 15, 367 77, 367 79, 328162, 370113, G01V 122, G01V 138
Patent
active
043097634
ABSTRACT:
Disclosed is an underwater seismic exploration system utilizing a sonobuoy for the radio telemetry of seismic data signals to a remotely located receiver, the sonobuoy including circuitry for digitizing the analog signals generated by hydrophones suspended from the sonobuoy prior to the application of these signals to an RF antenna. The remotely located receiver includes an antenna for receiving the transmitted modulated digital signal information, and means for demodulating, demultiplexing, and appropriately converting the signals for either analog or digital recording of the received data.
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patent: 4023140 (1977-05-01), Siems et al.
patent: 4042906 (1977-08-01), Ezell
Passmore Paul R.
Poggiagliomi Elio
Birmiel Howard A.
Geoquest International Ltd.
Glaser Kenneth R.
Refraction Technology, Inc.
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