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公开(公告)号：JPH10290801A
公开(公告)日：1998-11-04
申请号：JP4639898
申请日：1998-02-13
Applicant: ADVANCED TECH LAB , ATLANTIS DIAGNOSTIC INTERNATL
Inventor： DAIGLE RONALD E , ROBINSON BRENT STEPHEN , COOLEY CLIFFORD R
Abstract: PROBLEM TO BE SOLVED: To prepare two interpolation lines in line positions deviated from a position of a receiver line and improve the linear density of an ultrasonic image by interpolating in a space toward another receiver scanning line. SOLUTION: The method is used when a continuous receiving scanning line prepares two interpolation image lines in different positions between the receiving operation line positions. This is implemented by an interpolator 30. A line buffer 14 delays respective receiving scanning lines by the time of a line segment. The delayed line and the line receiving at present are weighted by weighted coefficients a1 , a2 and then the weighted scanning line signals are coupled with each other by adding circuits 32, 34. Secondly, the interpolated signals are detected and converted into desired image modes by a scanning converter so as to be displayed.
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公开(公告)号：JPH11329A
公开(公告)日：1999-01-06
申请号：JP26288497
申请日：1997-09-11
Applicant: ATLANTIS DIAGNOSTIC INTERNATL
Inventor： DAIGLE RONALD E
Abstract: PROBLEM TO BE SOLVED: To efficiently and multiply process sets of a large quantity of data by providing a beam forming unit which obtains an ultrasonic echo signal and to which an ultrasonic probe is connected so as to be freely mountable- demountable, and impressing a ray line signal obtained by processing its output signal by a CPU on a display device. SOLUTION: In a beam forming unit 90 to control transmission and reception by an ultrasonic probe, a beam of a received ultrasonic echo is formed for signal preprocessing such as amplification and band-pass filtration, and image processing is performed by a mother board 80 to input the beam formed here. In addition, a DSP card 92, a video card 94 and a network card 96 are connected to the mother board 80 through an extended buss 86, and a video output signal is sent to a display 50 through a cable by the video card 94. An extended buss board which can be connected to an existing beam forming unit board can also be inserted into one of plural extended buss sockets of the mother board 80.
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公开(公告)号：AU5390798A
公开(公告)日：1998-08-20
申请号：AU5390798
申请日：1998-02-12
Applicant: ADVANCED TECH LAB , ATLANTIS DIAGNOSTICS INTERNATI
Inventor： DAIGLE RONALD E , ROBINSON BRENT STEPHEN , COOLEY CLIFFORD R
Abstract: A method and apparatus are provided for interpolating image lines from ultrasonically obtained scanlines of an image region. The interpolated lines are preferably formed one-quarter and three-quarters of the distance between each pair of received scanlines by combining weighted samples of the adjacent scanlines in proportion to their distances from the interpolated lines. The received scanlines are preferably formed by a beamformer which samples the received lines at quadrature phases of the scanhead center frequency and filters the samples by combining successive samples of a related phase. The image lines are scan converted by computing a grid of weighted values between each pair of image lines, and using the closest value for each pixel in the ultrasound image.
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公开(公告)号：DE69529376D1
公开(公告)日：2003-02-20
申请号：DE69529376
申请日：1995-09-15
Applicant: ADVANCED TECH LAB
Inventor： DAIGLE RONALD E
Abstract: An array of ultrasonic transducer elements receives signals to form beams simultaneously from a plurality of beam directions. The echo signals received by each transducer element are sampled in response to two or more interleaved sampling signal sequences, each of which is timed to begin at the initial time of arrival of echo signals from a unique spatial line. Each sampling signal sequence thereby produces signal samples associated with a given line. The stream of interleaved signal samples from each transducer element are separated in correspondence with each sampling signal sequence, and signal samples from corresponding separated sequences from the transducer elements are summed to form coherent signals corresponding to spatially separate ultrasonic beams.
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公开(公告)号：AT162701T
公开(公告)日：1998-02-15
申请号：AT91310726
申请日：1991-11-21
Applicant: ADVANCED TECH LAB
Inventor： KELLER PHILIP , AUGUSTINE LARRY J , DAIGLE RONALD E
Abstract: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a tranmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.
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Patent Agency Ranking
公开(公告)号：DE69132941T2
公开(公告)日：2002-11-21
申请号：DE69132941
申请日：1991-11-21
Applicant: ADVANCED TECH LAB
Inventor： KELLER PHILIP , AUGUSTINE LARRY J , DAIGLE RONALD E
Abstract: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a tranmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.
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公开(公告)号：AT231275T
公开(公告)日：2003-02-15
申请号：AT95306513
申请日：1995-09-15
Applicant: ADVANCED TECH LAB
Inventor： DAIGLE RONALD E
Abstract: An array of ultrasonic transducer elements receives signals to form beams simultaneously from a plurality of beam directions. The echo signals received by each transducer element are sampled in response to two or more interleaved sampling signal sequences, each of which is timed to begin at the initial time of arrival of echo signals from a unique spatial line. Each sampling signal sequence thereby produces signal samples associated with a given line. The stream of interleaved signal samples from each transducer element are separated in correspondence with each sampling signal sequence, and signal samples from corresponding separated sequences from the transducer elements are summed to form coherent signals corresponding to spatially separate ultrasonic beams.
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公开(公告)号：DE69132941D1
公开(公告)日：2002-04-04
申请号：DE69132941
申请日：1991-11-21
Applicant: ADVANCED TECH LAB
Inventor： KELLER PHILIP , AUGUSTINE LARRY J , DAIGLE RONALD E
Abstract: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a tranmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.
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公开(公告)号：DE69128827T2
公开(公告)日：1998-05-14
申请号：DE69128827
申请日：1991-11-21
Applicant: ADVANCED TECH LAB
Inventor： KELLER PHILIP , AUGUSTINE LARRY J , DAIGLE RONALD E
Abstract: An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment the positional information is developed from a plurality of accelerometers located within a scanhead. The second integrals of the acceleration signals are used to determine positional information of the image plane. In a second embodiment a tranmitter transmits a magnetic field and a receiver attached to the scanhead detects the position of the scanhead in relation to the transmitted magnetic field. Spatially related images are displayed by displaying one image plane in the plane of the display and a second image plane projected in relation thereto. Either of the displayed planes may be displayed in outline form, and the outline may be modulated to depict depth.
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公开(公告)号：DE69128919D1
公开(公告)日：1998-03-19
申请号：DE69128919
申请日：1991-07-18
Applicant: ADVANCED TECH LAB
Inventor： DAIGLE RONALD E
Abstract: An ultrasonic diagnostic imaging system is provided for scanning with a linear transducer array and displaying an image area which is truncated with respect to a conventional triangular image sector to take the form of a trapezoid. Uniformity of image resolution and ease of signal processing enhancement is provided by transmitting adjacent ultrasonic beams at equal angular increments over the sector area. The ultrasonic beams transmitted are focused around predetermined transmit focal points and the transmit aperture employed for each transmission is determined by a transducer sensitivity criterion applied to the focal point. Means are provided for delaying signal components received from the beam directions so that the sum of the components will form a coherent echo signal. Means are provided for dynamically focusing received signal components by dynamically focusing received signal components by dynamically varying the sampling frequencies of laterally disposed signal components, and the receive aperture is dynamically varied in correspondence with the number of array elements which satisfy a sensitivity criterion at different depths of field.
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