Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2004-04-28
2009-12-22
Winakur, Eric F (Department: 3768)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S472000, C600S459000
Reexamination Certificate
active
07635334
ABSTRACT:
Elements within each of a plurality of sub-arrays are dynamically grouped as a function of the steering direction. The dynamic grouping allows for partial beamforming with more similar delays within each grouping of elements within the sub-array. A plurality of partial beamformers is provided for each sub-array. Different ones of the elements are mapped to different ones of the partial beamformers as a function of the steering direction. As used herein, steering direction includes one or more of a focal location, a scan line angle, a scan line origin or other beamforming parameters associated with establishing a relative delay between elements. The shape or grouping of elements is changed at the beginning of any acquisition cycle, such as the beginning of transmit and receive operation for a given steering direction. Dynamic sub-array mapping may minimize negative effects of sub-array partial beamforming by providing an optimal shape of the sub-array groupings based on the steering direction.
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Bor Helene
Siemens Medical Solutions USA , Inc.
Winakur Eric F
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