公开(公告)号：US06635897B2

公开(公告)日：2003-10-21

申请号：US10151818

申请日：2002-05-22

申请人： Satoshi Arakawa ,  Hiroyuki Karasawa ,  Hiroaki Yasuda

发明人： Satoshi Arakawa ,  Hiroyuki Karasawa ,  Hiroaki Yasuda

IPC分类号： G03B4208

CPC分类号： G01T1/2014

摘要： An image signal representing radiation image information on an object stored on a stimulable phosphor sheet is read out by scanning the stimulable phosphor sheet with a stimulating light beam and photoelectrically detecting light emitted from the stimulable phosphor sheet upon stimulation thereof by a photodetector having a photoelectric surface. A variable transmittance medium whose transmittance to the light emitted from the stimulable phosphor sheet upon stimulation thereof is variable continuously or stepwise is inserted into the optical path of the light between the stimulable phosphor sheet and the photoelectric surface of the photodetector The transmittance of the variable transmittance medium is changed according to the amount of light emitted from the stimulable phosphor sheet upon stimulation thereof so that the photoelectric surface is not saturated by an excessive amount of light impinging thereupon.

公开(公告)号：US06417518B2

公开(公告)日：2002-07-09

申请号：US09770187

申请日：2001-01-29

申请人： Satoshi Arakawa ,  Hiroyuki Karasawa ,  Hiroaki Yasuda

发明人： Satoshi Arakawa ,  Hiroyuki Karasawa ,  Hiroaki Yasuda

IPC分类号： G03B4208

CPC分类号： G01T1/2014

摘要： An image signal representing radiation image information on an object stored on a stimulable phosphor sheet is read out by scanning the stimulable phosphor sheet with a stimulating light beam and photoelectrically detecting light emitted from the stimulable phosphor sheet upon stimulation thereof by a photodetector having a photoelectric surface. A variable transmittance medium whose transmittance to the light emitted from the stimulable phosphor sheet upon stimulation thereof is variable continuously or stepwise is inserted into the optical path of the light between the stimulable phosphor sheet and the photoelectric surface of the photodetector. The transmittance of the variable transmittance medium is changed according to the amount of light emitted from the stimulable phosphor sheet upon stimulation thereof so that the photoelectric surface is not saturated by an excessive amount of light impinging thereupon.

摘要翻译： 通过用刺激光束扫描可刺激的荧光体片，并且通过具有光电表面的光电检测器刺激从可刺激的荧光体片发射的光，从而读出表示存储在可刺激的荧光体片上的物体上的放射线图像信息的图像信号 。 一种可变透射率介质，其可刺激时对从可刺激荧光体片发射的光的透射率连续或逐步变化地插入到可刺激的荧光体片和光电检测器的光电表面之间的光的光路中。 可变透射率介质的透射率根据刺激时从可刺激的荧光体片发射的光量而改变，使得光电表面不被过量的光照射而饱和。

公开(公告)号：US06885020B2

公开(公告)日：2005-04-26

申请号：US10095458

申请日：2002-03-13

申请人： Satoshi Arakawa ,  Hiroaki Yasuda ,  Hiroyuki Karasawa ,  Jin Murayama ,  Tetsuo Yamada ,  Tatsuya Hagiwara

发明人： Satoshi Arakawa ,  Hiroaki Yasuda ,  Hiroyuki Karasawa ,  Jin Murayama ,  Tetsuo Yamada ,  Tatsuya Hagiwara

IPC分类号： G03B42/02 ,  G03B42/08 ,  G06T1/00 ,  H04N1/028 ,  H04N1/04 ,  G01N23/04 ,  H05B33/00

CPC分类号： G03B42/08

摘要： In the obtainment of image signals by receiving emitted light, generated by a stimulable phosphor sheet due to irradiation thereof by an excitation light, at the light receiving surfaces of photoelectric conversion elements, then obtaining an electrical image signal based on the charges stored in the photoelectric conversion elements by an image signal obtainment means comprising a charge transfer path and an output circuit, the area surrounding the light receiving surfaces of the photoelectric conversion elements have been covered by a filter that absorbs only blue light, and the emitted light is received.

摘要翻译： 在光电转换元件的光接收表面处，通过​​接收由激发光照射由可刺激的荧光体片产生的发射光，获得图像信号，然后基于存储在光电转换元件中的电荷获得电图像信号 通过包括电荷转移路径和输出电路的图像信号获取装置的转换元件，光电转换元件的光接收表面周围的区域被仅吸收蓝色光的滤光器覆盖，并且发射的光被接收。

公开(公告)号：US06649918B2

公开(公告)日：2003-11-18

申请号：US09906723

申请日：2001-07-18

申请人： Satoshi Arakawa ,  Hiroyuki Karasawa

发明人： Satoshi Arakawa ,  Hiroyuki Karasawa

IPC分类号： A61N500

CPC分类号： G01T1/2014

摘要： Disclosed herein is a radiation image information reader equipped with two line detection sections. The photostimulated luminescent light emitted by irradiation of excitation light is detected by the two line detection sections. Also, the photostimulated luminescent light emitted from an excitation-light irradiated portion corresponding to adjacent portions in a plurality of line sensors of one of the two line detection sections, is detected by the other line detection section in which adjacent portions are disposed at positions shifted predetermined distances from the adjacent portions of the one line detection section.

公开(公告)号：US20100262005A1

公开(公告)日：2010-10-14

申请号：US12662326

申请日：2010-04-12

申请人： Hiroyuki Karasawa

发明人： Hiroyuki Karasawa

IPC分类号： A61B8/14

CPC分类号： G01S7/52017 ,  A61B8/00 ,  A61B8/4472 ,  A61B8/5207 ,  A61B8/56 ,  G01S7/003 ,  G01S7/5208 ,  G01S7/52085

摘要： In an ultrasonic diagnostic apparatus for performing serial transfer between an ultrasonic probe and an apparatus main body, stable image formation can be performed even when transfer quality is poor while realizing downsizing of the ultrasonic probe. The apparatus includes: (i) an ultrasonic probe including a reception signal processing unit for generating parallel sample data based on reception signals outputted from plural ultrasonic transducers, a parallel/serial conversion unit for converting the parallel sample data into serial sample data, and a communication unit for transmitting the sample data; and (ii) an ultrasonic diagnostic apparatus main body including a storage unit for storing the sample data of at least one frame transmitted from the ultrasonic probe, and an image forming unit for generating an image signal by performing reception focusing processing on the sample data with respect to every one frame read out from the storage unit.

摘要翻译： 在超声波探头与装置主体之间进行串行传送的超声波诊断装置中，即使在超声波探头小型化的情况下，即使在转印质量差的情况下也能够进行稳定的图像形成。 该装置包括：（i）超声波探头，包括：接收信号处理单元，用于根据从多个超声波换能器输出的接收信号产生并行采样数据;并行/串行转换单元，用于将并行采样数据转换成串行采样数据;以及 用于发送样本数据的通信单元; 以及（ii）超声波诊断装置主体，包括存储单元，用于存储从超声波探头发送的至少一帧的样本数据;以及图像形成单元，用于通过对样本数据进行接收聚焦处理来生成图像信号， 相对于从存储单元读出的每一帧。

公开(公告)号：US07713206B2

公开(公告)日：2010-05-11

申请号：US11234088

申请日：2005-09-26

申请人： Hiroyuki Karasawa

发明人： Hiroyuki Karasawa

IPC分类号： A61B8/00

CPC分类号： A61B8/14

摘要： Tissue property of a reflector is detected based on plural reception signals outputted from plural ultrasonic transducers by receiving ultrasonic echoes. An ultrasonic imaging apparatus includes: an ultrasonic probe including plural ultrasonic transducers for transmitting ultrasonic waves toward an object to be inspected and receiving ultrasonic waves reflected from the object to output plural reception signals; and a tissue property image generating unit for generating information on tissue property in a region within the object based on interrelationship among at least one group of reception signals on the region from among the plural reception signals respectively outputted from the plural ultrasonic transducers.

摘要翻译： 基于通过接收超声波回波从多个超声换能器输出的多个接收信号来检测反射体的组织特性。 一种超声波成像装置，包括：超声波探头，包括多个超声波换能器，用于向待检查物体发送超声波，并接收从物体反射的超声波，以输出多个接收信号; 以及组织属性图像生成单元，用于根据从多个超声波换能器分别输出的多个接收信号中的区域中的至少一组接收信号之间的相互关系，生成关于对象内的区域中的组织属性的信息。

公开(公告)号：US07481769B2

公开(公告)日：2009-01-27

申请号：US10944800

申请日：2004-09-21

申请人： Hiroyuki Karasawa

发明人： Hiroyuki Karasawa

IPC分类号： A61B8/00

CPC分类号： A61B8/483 ,  A61B8/0858 ,  A61B8/0875 ,  A61B8/4438 ,  G01S7/52026 ,  G01S7/52036 ,  G01S7/5206

摘要： An ultrasonic diagnosing apparatus capable of improving an SN ratio and emphatically displaying characteristic tissues by acquiring information unique to tissues such as organs, bones, etc. in a living body. The ultrasonic diagnosing apparatus includes: a B-mode image data generating unit for generating first image data based on intensity of detection signals obtained by transmitting and receiving ultrasonic waves having a plurality of frequency components; a frequency component extracting unit for extracting at least one frequency component from the detection signals; a frequency image data generating unit for generating second image data based on intensity of the extracted at least one frequency component; and an image selecting unit for selecting at least one of the first image data and the second image data.

摘要翻译： 一种超声波诊断装置，其能够提高SN比，并且通过获取生物体中诸如器官，骨骼等的组织所特有的信息来强调显示特征性组织。 超声波诊断装置包括：B模式图像数据生成单元，用于基于通过发送和接收具有多个频率分量的超声波而获得的检测信号的强度来产生第一图像数据; 频率分量提取单元，用于从所述检测信号中提取至少一个频率分量; 频率图像数据生成单元，用于基于所提取的至少一个频率分量的强度产生第二图像数据; 以及图像选择单元，用于选择第一图像数据和第二图像数据中的至少一个。

公开(公告)号：US20070232924A1

公开(公告)日：2007-10-04

申请号：US11717102

申请日：2007-03-13

申请人： Hiroyuki Karasawa

发明人： Hiroyuki Karasawa

IPC分类号： A61B8/14

CPC分类号： A61B8/14

摘要： N numbers of ultrasonic transducers are arranged at a tip of an ultrasonic probe. A wire from each transducer is connected to a multiplexer (MUX). The MUX selectively switches M numbers of the ultrasonic transducers to be driven out of the N numbers of the ultrasonic transducers. A short-circuit switch is connected to each of the ultrasonic transducers. The short-circuit switches short-circuit adjacent L numbers of the ultrasonic transducers, and simultaneously drive the L numbers of the ultrasonic transducers as a single ultrasonic transducer. A CPU changes the number L in accordance with the frequency band of the ultrasonic waves which is set by an operation unit.

摘要翻译： 在超声波探头的末端配置N个超声波换能器。 来自每个传感器的导线连接到多路复用器（MUX）。 多路复用器选择性地将N个超声波换能器中的M个超声换能器转换为要被驱动。 短路开关连接到每个超声换能器。 短路开关使相邻L个超声波换能器短路，同时将L个超声波换能器作为单个超声波换能器驱动。 CPU根据由操作单元设定的超声波的频带来改变数量L.

公开(公告)号：US20070073154A1

公开(公告)日：2007-03-29

申请号：US11518272

申请日：2006-09-11

申请人： Hiroyuki Karasawa

发明人： Hiroyuki Karasawa

IPC分类号： A61B8/14

CPC分类号： A61B8/4488 ,  A61B8/12 ,  A61B8/445 ,  A61B8/4483 ,  A61B8/467 ,  B06B1/0269 ,  B06B1/0633

摘要： An ultrasonic diagnostic apparatus is provided with an ultrasonic probe that has at its end a low frequency ultrasonic transducer group and a high frequency ultrasonic transducer group, and a selection switch for selecting one of these transducer groups. According to the selection at the selection switch, a switching device of the ultrasonic probe connects either the low frequency ultrasonic transducer group or the high frequency ultrasonic transducer group to a multiplexer. The multiplexer selects from among ultrasonic transducers of the selected group ones to be driven at the same time, while shifting the driven transducers of the same group step by step.

摘要翻译： 超声波诊断装置具有超声波探头，其末端具有低频超声波振子组和高频超声波振子组，以及用于选择这些振子组之一的选择开关。 根据选择开关的选择，超声波探头的切换装置将低频超声波振子组或高频超声波振子组连接到多路复用器。 多路复用器从所选择的组的超声换能器中选择同时驱动，同时逐步移动同一组的从动换能器。

公开(公告)号：US08465428B2

公开(公告)日：2013-06-18

申请号：US12659888

申请日：2010-03-24

申请人： Yoshimitsu Kudoh ,  Hiroyuki Karasawa

发明人： Yoshimitsu Kudoh ,  Hiroyuki Karasawa

IPC分类号： A61B8/00

CPC分类号： A61B8/565 ,  A61B8/06 ,  A61B8/13 ,  A61B8/4405 ,  A61B8/4427 ,  A61B8/4472

摘要： An ultrasonic probe that can be used in various stiles depending on cases. The ultrasonic probe includes: plural ultrasonic transducers for transmitting ultrasonic waves according to drive signals, and receiving ultrasonic echoes to output reception signals; a signal processing unit for performing signal processing on the reception signals outputted from the plural ultrasonic transducers to generate a transfer signal; and a communication unit adapted to be connectable to any one of plural functional modules, for transmitting the transfer signal generated by the signal processing unit to the connected functional module.

摘要翻译： 超声波探头，可根据情况在各种各样的立体上使用。 超声波探头包括：多个用于根据驱动信号发送超声波的超声波换能器，并且接收超声回波以输出接收信号; 信号处理单元，对从多个超声换能器输出的接收信号进行信号处理，生成传递信号; 以及适于连接到多个功能模块中的任一个的通信单元，用于将由信号处理单元生成的传送信号发送到连接的功能模块。