Communication apparatus
AssigneeBAE SYSTEMS plc
InventorsSTEPHEN DEREK FINCH, MATTHEW ROBERT GORE, DUNCAN PETER ROWE
Life of this patent
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Abstract
Communication apparatus comprises a first transceiver unit (205A) and a signal processing device (106) configured to receive a signal from the first transceiver unit and to produce a signal for transmission by the first transceiver unit. A cable (201A) connects the first transceiver unit to the signal processing device. The first transceiver unit comprises a housing; a first pair of transducers (204T, 204R) located at, or adjacent, a first end of the housing, and a second set of transducers (206T, 206R) located at, or adjacent, an opposite end of the housing.
Claims20
A communication apparatus comprising:
- a first transceiver unit including a housing, a first pair of transducers located at or adjacent a first end of the housing, and a second set of transducers located at or adjacent an opposite end of the housing;
- a signal processing device configured to receive a signal from the first transceiver unit and to produce a signal for transmission by the first transceiver unit;
- and
- a cable connecting the first transceiver unit to the signal processing device.
A communication method comprising:
- using a cable to connect a first transceiver unit to a signal processing device configured to receive a signal from the first transceiver unit and to produce a signal for transmission by the first transceiver unit, wherein the first transceiver unit comprises:
- a housing;
- a first pair of transducers located at, or adjacent, a first end of the housing, and a second set of transducers located at, or adjacent, an opposite end of the housing;
- and
- using the connected first transceiver unit to communicate with a remote transceiver unit.
A communication apparatus comprising:
- a transceiver unit including a housing, a first pair of transducers located at or adjacent a first end of the housing, and a second set of transducers located at or adjacent an opposite end of the housing;
- a signal processing device configured to receive a signal from the transceiver unit and to produce a signal for transmission by the transceiver unit;
- and
- a cable connecting the transceiver unit to the signal processing device;
- wherein:
- the first pair of transducers of the transceiver unit comprises a said transducer configured to transmit signals at a first frequency and another said transducer configured to receive signals at the first frequency and a second frequency, and
- the second pair of transducers of the transceiver unit comprises a said transducer configured to transmit signals at the second frequency and another said transducer configured to receive signals at and the first frequency the second frequency.
Dependencies are inferred from the claim text.