Ultrasound imaging device

专利名称：Ultrasound imaging device

发明人：Richard F Dillman,David G Miller,Alexander

Tykulsky

申请号：US09691605申请日：20001018公开号：US06497660B1公开日：20021224

专利附图：

摘要：An ultrasound imaging device having a bipolar transmitter to generate a bipolarvoltage signal, a transducer to emit an ultrasound wave in response to the bipolarvoltage signal, and a bias generator to bias the bipolar voltage signal prior to being

received by the transducer so that the biased bipolar voltage signal maintains a samepolarity as a poling polarity of the transducer throughout a transmit cycle of theultrasound imaging device. By biasing the bipolar voltage signal to maintain a samepolarity as the poling polarity of the transducer throughout the transmit cycle, theultrasound imaging device prevents depoling of the transducer which could otherwiseoccur if the transducer is driven by a bipolar voltage signal which repeatedly has apolarity opposite to the poling polarity of the transducer.

申请人：KONINKLIJKE PHILIPS ELECTRONICS N.V.

代理人：John Vodopia

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