公开(公告)号：WO2016076244A1

公开(公告)日：2016-05-19

申请号：PCT/JP2015/081420

申请日：2015-11-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAGAE, Kenichi ,  KRUGER, Robert, A.

IPC: A61B5/00 ,  A61B8/08

CPC classification number: A61B5/0035 ,  A61B5/0095 ,  A61B8/08 ,  A61B8/0825 ,  A61B8/0858 ,  A61B8/4416 ,  A61B8/4455 ,  A61B8/4477 ,  A61B8/4494

Abstract: Provided is an object information acquiring apparatus for both photoacoustic imaging and ultrasound imaging. The apparatus comprises a light source (11); an ultrasound transmitting element (25); a plurality of transducers (17) each detecting a first acoustic wave generated by light, which is radiated into an object (15), and outputting a first electric signal, and detecting a second acoustic wave generated by an ultrasound wave, which is transmitted from the ultrasound transmitting element and which is scattered inside the object, and outputting a second electric signal; a support (22) having a shape based on a sphere and supporting the plurality of transducers so that directivity axes of the transducers are concentrated into a high resolution region; and a processor acquiring specific information on the object based on the first and the second electric signal respectively. The apparatus may be configured to move the supporter relative to the object, e.g. spirally.

Abstract translation: 提供了一种用于光声成像和超声成像的对象信息获取装置。 该装置包括光源（11）; 超声波发射元件（25）; 每个检测由光产生的第一声波的多个换能器（17），其被辐射到物体（15）中，并且输出第一电信号，并且检测由超声波产生的第二声波，所述第二声波从 所述超声波发送元件分散在所述物体内部，并输出第二电信号; 支撑件（22），其具有基于球体的形状并支撑所述多个换能器，使得所述换能器的方向性轴线集中在高分辨率区域中; 以及处理器，分别基于第一和第二电信号获取关于对象的特定信息。 该装置可以被配置为相对于物体移动支撑件，例如， 螺旋。

公开(公告)号：WO2014125971A1

公开(公告)日：2014-08-21

申请号：PCT/JP2014/052599

申请日：2014-01-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： NAGAE, Kenichi ,  OKUMURA, Shigeaki ,  TAKI, Hirofumi ,  SATO, Toru

IPC: G01S15/89 ,  A61B8/06

CPC classification number: A61B8/5207 ,  A61B8/06 ,  A61B8/08 ,  A61B8/4494 ,  A61B8/486 ,  A61B8/5223 ,  G01S7/52046 ,  G01S15/8915 ,  G01S15/8981 ,  G10K11/341

Abstract: With unwanted reflected waves, an error might be produced in a movement velocity detection of a measurement object. There is provided a subject information acquisition apparatus including a plurality of transducers configured to transmit an acoustic wave pulse to a subject, receive reflected waves reflected from a plurality of positions in the subject, and convert the reflected waves respectively into time series received signals and a processing unit configured to acquire movement information of the object by using a plurality of the received signals output from the plurality of transducers are provided. The processing unit extracts a plurality of signals each representing a movement component by using the plurality of received signals, performs adaptive signal processing by using the plurality of signals each representing a movement component, and acquires the movement information of the object by using a plurality of output signals obtained by the adaptive signal processing.

Abstract translation: 对于不想要的反射波，可能在测量对象的运动速度检测中产生误差。 提供了一种被摄体信息获取装置，包括多个被配置为向对象发送声波脉冲的换能器，接收从被摄体中的多个位置反射的反射波，并将反射波分别转换为时间序列接收信号，以及 被配置为通过使用从多个换能器输出的多个接收信号来获取对象的移动信息的处理单元。 处理单元通过使用多个接收信号提取各自表示移动分量的信号，通过使用表示移动分量的多个信号来执行自适应信号处理，并且通过使用多个信号来获取对象的移动信息 通过自适应信号处理获得的输出信号。

公开(公告)号：WO2011102105A1

公开(公告)日：2011-08-25

申请号：PCT/JP2011/000791

申请日：2011-02-14

Applicant: CANON KABUSHIKI KAISHA ,  NAGAE, Kenichi ,  BABA, Yoshitaka

Inventor： NAGAE, Kenichi ,  BABA, Yoshitaka

IPC: A61B8/13 ,  G01N29/24 ,  G01S7/52

CPC classification number: A61B5/0095 ,  A61B8/13 ,  G01S7/52034

Abstract: There is provided a subject information processing apparatus including a plurality of first acoustic conversion elements (002) that receive an acoustic wave having a first frequency and being reflected inside a subject, and that convert the acoustic wave into an analog signal, a plurality of second acoustic conversion elements (002) that receive an acoustic wave having a second frequency and being generated when light is irradiated to a subject, and that convert the acoustic wave into an analog signal, an A/D converter (005) that converts the analog signals into digital signals, a data memory (006) that retains the digital signals, and a controller (011) that instructs the data memory to output the digital signals at a predetermined sampling frequency for each receiving axis. According to the invention, the first frequency is set to be higher than the second frequency and in the digital signal output from the data memory the number of samples per unit time of the digital signal derived from the acoustic wave having the second frequency on one receiving axis is smaller than the number of samples per unit time of the digital signal derived from the acoustic wave having the first frequency on one receiving axis.

Abstract translation: 提供了一种被摄体信息处理设备，包括：多个第一声转换元件（002），其接收具有第一频率并被反射在被摄体内的声波，并将声波转换成模拟信号;多个第二声音转换元件 声音转换元件（002），其接收具有第二频率的声波并且当光照射到被摄体时产生，并且将声波转换为模拟信号; A / D转换器（005），其将模拟信号 数字信号，保持数字信号的数据存储器（006），以及控制器（011），其指示数据存储器以每个接收轴以预定采样频率输出数字信号。 根据本发明，将第一频率设置为高于第二频率，并且在从数据存储器输出的数字信号中，从接收到具有第二频率的声波导出的数字信号的每单位时间的采样数 轴小于在一个接收轴上从具有第一频率的声波导出的数字信号的每单位时间的样本数。

公开(公告)号：WO2013027743A1

公开(公告)日：2013-02-28

申请号：PCT/JP2012/071113

申请日：2012-08-15

Applicant: CANON KABUSHIKI KAISHA ,  NAGAE, Kenichi

Inventor： NAGAE, Kenichi

IPC: A61B8/08 ,  A61B5/00

CPC classification number: A61B5/0095 ,  A61B5/0091 ,  A61B5/145 ,  A61B8/0825 ,  A61B8/403 ,  A61B8/4281

Abstract: An object information acquiring apparatus comprises: a light source (204) configured to emit pulsed light of a plurality of wavelengths; a wavelength controller (210) configured to switch the wavelength; a probe (101) configured to receive an acoustic wave generated and propagated in an object subjected to the pulsed light emitted onto the object; a scan controller (211) configured to move the probe within a predetermined scanning range; and an information processor configured to acquire information about the object by using a plurality of electric signals corresponding to the wavelengths of the pulsed light output from the probe at each reception position in the scanning area. The wavelength controller switches the wavelength of the pulsed light before the probe scans the entire scanning area while receiving at each reception position an acoustic wave corresponding to at least one of the wavelengths of the pulsed light.

Abstract translation: 对象信息获取装置包括：被配置为发射多个波长的脉冲光的光源（204）; 波长控制器（210），被配置为切换所述波长; 探针（101），被配置为接收在经受经过所述物体上的脉冲光的物体中产生和传播的声波; 扫描控制器（211），被配置为在预定扫描范围内移动所述探针; 以及信息处理器，被配置为通过使用与扫描区域中的每个接收位置处的从探测器输出的脉冲光的波长相对应的多个电信号来获取关于对象的信息。 波长控制器在探针扫描整个扫描区域之前切换脉冲光的波长，同时在每个接收位置接收与脉冲光的至少一个波长相对应的声波。

公开(公告)号：WO2012035723A1

公开(公告)日：2012-03-22

申请号：PCT/JP2011/005039

申请日：2011-09-08

Applicant: CANON KABUSHIKI KAISHA ,  NAGAE, Kenichi

Inventor： NAGAE, Kenichi

IPC: G01S7/52 ,  G01S15/89 ,  G10K11/34 ,  G10K11/35

CPC classification number: G01S7/52047 ,  A61B8/4444 ,  G01S15/8915 ,  G01S15/8945 ,  G01S15/8977 ,  G01S15/8993

Abstract: An ultrasound imaging apparatus of the present invention includes a probe (302) which has a plurality of elements (301) arranged in an array, which receive elastic waves propagating within a subject and converts the received elastic waves to received signals, a first signal processing unit (10, 410, 810) which uses the received signals output by the elements to calculate first output signals corresponding to the elastic waves from a target position, a second signal processing unit (20, 420, 820) which uses the first output signals of the target position to calculate second output signals corresponding to elastic waves from the target position, and an image processing unit (412) which uses the second output signals to generate image data for display on an image display device (413). At least one of the first signal processing unit (10, 410, 810) and the second signal processing unit (20, 420, 820) uses adaptive signal processing to calculate the first output signals or the second output signals. An ultrasound imaging method corresponding to the ultrasound imaging apparatus is also disclosed.

Abstract translation: 本发明的超声波成像装置包括具有排列成阵列的多个元件（301）的探针（302），其接收在被检体内传播的弹性波，并将接收到的弹性波转换为接收信号，第一信号处理 单元（10,410,810），其使用由所述元件输出的接收信号来计算对应于来自目标位置的弹性波的第一输出信号;第二信号处理单元（20,420,820），其使用所述第一输出信号 以计算对应于来自目标位置的弹性波的第二输出信号的图像处理单元（412），以及使用所述第二输出信号生成图像数据以在图像显示装置（413）上显示的图像处理单元（412）。 第一信号处理单元（10,410,810）和第二信号处理单元（20,420,820）中的至少一个使用自适应信号处理来计算第一输出信号或第二输出信号。 还公开了对应于超声成像装置的超声成像方法。

公开(公告)号：WO2011070729A1

公开(公告)日：2011-06-16

申请号：PCT/JP2010/006717

申请日：2010-11-16

Applicant: CANON KABUSHIKI KAISHA ,  KANDORI, Atsushi ,  TAKAGI, Makoto ,  MAJIMA, Masao ,  NAGAE, Kenichi

Inventor： KANDORI, Atsushi ,  TAKAGI, Makoto ,  MAJIMA, Masao ,  NAGAE, Kenichi

IPC: B06B1/02 ,  H01L29/84

CPC classification number: H02N1/006 ,  B06B1/0246 ,  B06B1/0292 ,  G01S3/8083

Abstract: Provided is a control apparatus and control method for a capacitive electromechanical transducer with small decrease in transmission/reception efficiency, and with sets of transmission/reception characteristics with different frequency ranges. The apparatus has cells each including first and second electrodes facing each other via a gap; includes a driving/detecting unit and an external stress applying unit. The driving/detecting unit performs at least one of causing the second electrode to vibrate and transmit elastic waves by generating an AC electrostatic attractive force between the electrodes, and detecting a change of capacitance between the electrodes, the change being caused by the second electrode vibrating upon receipt of elastic waves. The external stress applying unit changes the external stress applied to the second electrode. The driving/detecting unit adjusts frequency characteristics by changing a parameter defining the frequency domain used in a transmitting/receiving operation, corresponding to the change of the external stress.

Abstract translation: 提供了一种用于容量式机电换能器的控制装置和控制方法，其具有小的发送/接收效率的降低以及具有不同频率范围的发送/接收特性的集合。 该装置具有各自包括经由间隙彼此面对的第一和第二电极的单元; 包括驱动/检测单元和外部应力施加单元。 驱动/检测单元执行以下至少一种：使第二电极通过在电极之间产生AC静电引力而振动并传播弹性波，并且检测电极之间的电容变化，由第二电极振动引起的变化 收到弹性波。 外部应力施加单元改变施加到第二电极的外部应力。 驱动/检测单元通过改变与发生/接收操作中使用的频域相对应的外部应力变化的参数来调整频率特性。

公开(公告)号：WO2008018347A3

公开(公告)日：2008-02-14

申请号：PCT/JP2007/065108

申请日：2007-07-26

Applicant: CANON KABUSHIKI KAISHA ,  KANDORI, Atsushi ,  MAJIMA, Masao ,  NAGAE, Kenichi

Inventor： KANDORI, Atsushi ,  MAJIMA, Masao ,  NAGAE, Kenichi

IPC: G01C19/56

Abstract: Provided is an angular velocity sensor including: a reference vibrator supported so as to generate reciprocating rotational vibration about a first rotation axis as a center; a detection vibrator supported by the reference vibrator so as to generate reciprocating rotational vibration about a second rotation axis, which is different from the first rotation axis, as a center; a reference vibration generating unit for allowing the reference vibrator to generate reciprocating rotational vibration; and a detection unit for detecting a displacement amount of the detection vibrator with respect to the reference vibrator, which is in association with the reciprocating rotational vibration of the detection vibrator.

公开(公告)号：WO2015125419A1

公开(公告)日：2015-08-27

申请号：PCT/JP2015/000441

申请日：2015-02-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： MANJO, Takahiro ,  TAKI, Hirofumi ,  SATO, Toru ,  AKAO, Masahiro ,  NAGAE, Kenichi

IPC: A61B8/04 ,  A61B8/08 ,  A61B5/021 ,  A61B5/022 ,  G01S7/52

CPC classification number: A61B8/481 ,  A61B5/02108 ,  A61B5/022 ,  A61B8/02 ,  A61B8/04 ,  A61B8/0883 ,  A61B8/14 ,  A61B8/461 ,  A61B8/5207 ,  A61B8/5223 ,  G01S7/52039 ,  G01S7/58 ,  G01S15/8915

Abstract: A subject information acquisition apparatus includes a converter configured to receive reflected waves from a contrast medium within a target area inside a subject, and a pressure information acquisition unit configured to acquire pressure information within the target area. In this case, the converter receives reflected waves from a contrast medium in each of a first period and a second period in which a pressure within the target area is different from the first period. The pressure information acquisition unit acquires pressure information in the second period within the target area based on a receive signal based on reflected waves in the first period, a receive signal based on a reflected wave in the second period, and pressure information on a region different from the target area, the pressure information being acquired in the first period.

Abstract translation: 被摄体信息获取装置包括被配置为从对象内的目标区域内的造影剂接收反射波的变换器，以及压力信息获取单元，被配置为获取目标区域内的压力信息。 在这种情况下，转换器在目标区域内的压力与第一周期不同的第一周期和第二周期中的每一个中接收来自造影剂的反射波。 压力信息获取单元基于基于第一周期中的反射波的接收信号，基于第二时段中的反射波的接收信号和不同的区域的压力信息来获取目标区域内的第二时段中的压力信息 在目标区域中，在第一时段中获取压力信息。

公开(公告)号：WO2013088654A1

公开(公告)日：2013-06-20

申请号：PCT/JP2012/007586

申请日：2012-11-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： YODA, Haruo ,  NAGAE, Kenichi ,  OIKAWA, Katsuya

IPC: G01S7/52

CPC classification number: G01S7/52 ,  G01S7/52034 ,  G01S7/52047 ,  G01S15/02

Abstract: An object information acquiring apparatus including: a plurality of receiving elements (5) receiving an acoustic wave (7) propagating from an object (P) and converting the acoustic wave into an electrical signal; a delaying unit (8) aligning phases of electrical signals of M number of channels outputted from the plurality of receiving elements (5); an eliminator (9) reducing the electrical signals of M number of channels to electrical signals of L number of channels; a calculator (11) calculating Nb number of output signals corresponding to low-frequency components of a complex signal based on the electrical signals outputted from the eliminator (9); and a signal processor (12) performing beam formation according to adaptive signal processing using output signals outputted from the calculator, wherein positive integers M, L, and Nb satisfy M > L ≥ 2(Nb - 1).

Abstract translation: 一种物体信息获取装置，包括：接收从物体（P）传播的声波（7）的多个接收元件（5），并将声波转换为电信号; 延迟单元（8），对从多个接收元件（5）输出的M个通道的电信号的相位进行排列; 消除器（9）将M个信道的电信号减少到L个信道的电信号; 计算器（11），基于从所述消除器（9）输出的电信号来计算与复数信号的低频分量相对应的输出信号的Nb数; 和信号处理器（12），使用从计算器输出的输出信号根据自适应信号处理执行波束形成，其中正整数M，L和Nb满足M> L> = 2（Nb-1）。

公开(公告)号：WO2012105718A1

公开(公告)日：2012-08-09

申请号：PCT/JP2012/052799

申请日：2012-02-01

Applicant: CANON KABUSHIKI KAISHA ,  NAGAE, Kenichi ,  TAKI, Hirofumi ,  SATO, Toru

Inventor： NAGAE, Kenichi ,  TAKI, Hirofumi ,  SATO, Toru

IPC: A61B8/14 ,  G01S7/52 ,  G01S15/89

CPC classification number: G01H1/00 ,  A61B8/14 ,  A61B8/4488 ,  A61B8/483 ,  A61B8/5207 ,  G01S7/52036 ,  G01S7/52073 ,  G01S15/8977

Abstract: Provided is a signal processing apparatus including: an transducer that performs scanning over the interior of an object and acquires received waveform data of a plurality of scanlines; an intensity screening unit that outputs a high intensity position at which signal intensity calculated from the received waveform data is higher than a first predetermined value; a correlation calculation unit that calculates a correlation value in a constant-width division for received waveform data of a first scanline and of a second scanline having a predetermined correlation with the first scanline; a position extraction unit that extracts, as a candidate position of a singular region, a position which corresponds to a high intensity position and for which the correlation value is lower than a second predetermined value; and an image processor that performs signal processing of generating image data of the object on the basis of the received waveform data.

Abstract translation: 提供一种信号处理装置，包括：换能器，其对物体内部执行扫描并获取多条扫描线的接收波形数据; 强度筛选单元，其输出从接收波形数据计算出的信号强度高于第一预定值的高强度位置; 相关计算单元，计算与第一扫描线具有预定相关性的第一扫描线和第二扫描线的接收波形数据的恒定宽度除法的相关值; 位置提取单元，其提取与高强度位置对应的位置，并且所述相关值低于第二预定值的单个区域的候选位置; 以及图像处理器，其基于接收到的波形数据执行产生对象的图像数据的信号处理。