Communications – electrical: acoustic wave systems and devices – Transmitter systems – With beam forming – shaping – steering – or scanning
Patent
1997-09-05
1999-08-03
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Transmitter systems
With beam forming, shaping, steering, or scanning
367 7, 367 11, G01S 1589, H04B 102
Patent
active
059333898
ABSTRACT:
A transmit beamformer includes multiple transducers, each responsive to a respective transmit waveform to produce a respective transducer waveform. A transmit waveform generator generates the transmit waveforms, and the transmit waveforms each include multiple frequency components. Progressively higher frequency components of the transmit waveforms are timed to cause corresponding progressively higher frequency components of the transducer waveforms to focus along a line at progressively shorter ranges. In this way, a frequency dependent line focus is achieved.
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Cole Christopher R.
Hossack John A.
Mo Jian-Hua
Acuson Corporation
Pihulic Daniel T.
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