Title:
超音波診断装置
Document Type and Number:
Japanese Patent JP5315153
Kind Code:
B2
Abstract:
A 2D array transducer (10) is separated into a plurality of sub-arrays. Four representative sub-arrays from SA1 to SA4 are shown in an enlarged manner. In addition, the 2D array transducer (10) is segmented into a plurality of transducer regions. Four regions of (I) - (IV) segmented by dot-and-chain lines represent four transducer regions. For each sub-array, a delay process corresponding to the sub-array is executed based on a delay pattern defining an amount of delay for each of the plurality of transducer elements belonging to the sub-array. In this process, for each transducer region, a common delay pattern is set for the plurality of sub-arrays belonging to the transducer region. For example, because sub-arrays SA1 and SA2 belong to the same transducer region (IV), a common delay pattern is set for the sub-arrays SA1 and SA2.
Inventors:
Cao Jingbun
Application Number:
JP2009169817A
Publication Date:
October 16, 2013
Filing Date:
July 21, 2009
Export Citation:
Assignee:
Hitachi Aloka Medical Co., Ltd.
International Classes:
A61B8/00
Domestic Patent References:
| JP2005342194A | ||||
| JP4254754A |
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office
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