Robert Lee Wiggins

US Patent:

41931297, Mar 11, 1980

Filed:

Jan 5, 1976

Appl. No.:

5/645868

Inventors:

Robert W. Wiggins - Hatboro PA
Kurt L. Ettenhofer - Valencia CA
Jack Bess - Willow Grove PA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G01S 966

US Classification:

367106

Abstract:

A charging circuit for a helicopter dipped sonar system in which a single ble conducts sonar and command signals in either direction along with a DC charging current from the helicopter to a storage battery in a submersible sensor unit. A multiplexer and power supply in the helicopter respectively provide simultaneous transmission of command data and charging current over a common conductor to the sensor unit. A filter and demultiplexer positioned in the sensor unit passes only the data for control of a sonar transmitter. The storage battery is charged directly from the conductor and a battery charge indication as well as hydrophone information is combined by a multiplexer at the sensor and returned to the helicopter by the common conductor for data display and power supply control.