Coarse-fine ultrasound transducer array for medical imaging
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United States of America Patent
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Nov 19, 1996
Grant Date -
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app pub date -
Jun 30, 1995
filing date -
Jun 30, 1995
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Abstract
The ultrasound transducer array defines an average row spacing along the elevation for receiving transducer elements that differs from an average row spacing along the elevation for transmitting transducer elements. In one embodiment a relatively 'coarse' row spacing is used for reception and a relatively 'fine' row spacing is used for transmission. The differing spacings lead to different transmit-elevation and receive-elevation beam-patterns. In one configuration the number of transducer elements, and correspondingly the number of ultrasound processing channels, is reduced. In an alternative configuration the beam-pattern 'footprint' is increased without increasing the number of transducer elements or processing channels. The array includes dedicated transmit-only elements and/or dedicated receive-only elements, together with coincident, time-shared transmit/receive elements. The coarse-fine spacings enable improved elevational focus without substantially increasing side lobe levels in a focal plane and far field portion of a resulting beam-pattern.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- SIEMENS MEDICAL SOLUTIONS USA, INC.
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Klepper, John R | Seattle, WA | 9 | 231 |
Teo, Tat-Jin | Redmond, WA | 50 | 3079 |
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