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公开(公告)号:US5905692A
公开(公告)日:1999-05-18
申请号:US1452
申请日:1997-12-31
申请人: Enrico Dolazza , Michael Lachmayr , Louis R. Poulo
发明人: Enrico Dolazza , Michael Lachmayr , Louis R. Poulo
CPC分类号: G01S7/52095 , G01S7/52023 , G01S7/52046 , G10K11/345
摘要: An array transducer ultrasound beamformer includes a plurality of processing channels, one for each active element of the transducer array. Each channel includes a digitizing unit for converting the received signal to digital samples and a time multiplexed delay unit for producing a primary stream of delayed TDM samples corresponding to one or more beams. Within each channel, the primary stream of delayed TDM samples is demultiplexed in order to separate the stream in a plurality of secondary streams of delayed TDM samples, wherein each of the secondary streams corresponds to a portion of a beam or a single beam.
摘要翻译: 阵列换能器超声波束形成器包括多个处理通道,一个用于换能器阵列的每个有源元件。 每个通道包括用于将接收的信号转换为数字样本的数字化单元和用于产生对应于一个或多个波束的延迟TDM样本的主流的时间复用延迟单元。 在每个信道内,延迟的TDM样本的主流被多路分解,以便在延迟的TDM样本的多个次流中分离流,其中每个次流对应于波束或单个波束的一部分。