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Patent Agency Ranking
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公开(公告)号：KR1019950003601B1
公开(公告)日：1995-04-14
申请号：KR1019910009481
申请日：1991-06-08
Applicant: 한국과학기술원
IPC: G01S3/80
Abstract: The method for performing the dynamic focusing within desired band includes the steps of: a) delayed sampling the analog signal provided from an arrayed converter continuously with an A/D converter; b) storing the converted digital sampling signal into a memory buffer in sequence; c) reading the stored sampling signal in sequence and converting them to the analog signal with a D/A converter; and d) adding and focusing the converted analog sampling signal with an adder.
Abstract translation: 用于在期望频带内执行动态聚焦的方法包括以下步骤：a）使用A / D转换器连续对从阵列转换器提供的模拟信号进行延迟采样; b）依次将转换的数字采样信号存储到存储器缓冲器中; c）顺序读取存储的采样信号，并用D / A转换器将其转换为模拟信号; 以及d）用加法器对转换的模拟采样信号进行加法和聚焦。
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公开(公告)号：KR1019910007874B1
公开(公告)日：1991-10-04
申请号：KR1019890015561
申请日：1989-10-28
Applicant: 한국과학기술원
IPC: A61B8/00
Abstract: Damping of ultrasound projected to the soft tissure related to the liver disease, is measured by entropy between envelope curves of ultrasonic pulse echo. A numerical formular is formulated by statistical characteristics of sampling data, after an envelope curve is detected from ultrasonic signals received in a time domain. The damping coefficient of the diseased tissue, is calculated by modulation of the damping coefficient in order to equalize the entropy values between two divisions.
Abstract translation: 超声脉冲回波的包络曲线之间的熵测量超声预测与肝脏疾病相关的软组织的阻尼。 在从时域中接收到的超声波信号检测到包络线后，通过采样数据的统计特性来形成数值公式。 通过调节阻尼系数计算病变组织的阻尼系数，以平衡两个分区之间的熵值。
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