Hitachi Medical Corporation

Nkk Corporation

Sony Corporation

Nec Corporation

Mitsubishi Denki Kabushiki Kaisha

Hitachi, Ltd.

Tetsuya Hayashi

Naoyuki Murayama

Takeshi Matsumura

Satoshi Tamano

Tsuyoshi Mitake

Mitsuhiro Oshiki

Tsuyoshi Shiina

Takashi Osaka

Okinori Yuasa

Takashi Azuma

Osamu Arai

Koji Shigematsu

Nobufumi Inada

Junichi Kitabuki

Hiroaki Sugiura

Kazuhiro Watanabe

Shinichiro Umemura

Hiroshi Kanda

Naomasa Takahashi

Shin-ichiro Umemura

Koichi Yamashita

Takashi Itow

Yoichi Hirota

Akira Takata

Takehiro Tsujita

Shinsuke Inoue

Toshifumi Takahashi

An image display systemincludes an attachment position error measuring function which measures deviation between reference axes of a head action tracking device(x, y, z) and reference axes of the user (x, y, z), i.e., an attachment position error of the head action tracking device, and an attachment position error absorbing function which corrects, based on the attachment position error, posture information about a posture of the head of the user detected by the head action tracking device. An image drawing devicetherefore renders, based on precise posture information, an image accurately following a motion of the head of the user.

Posture measuring device, posture measuring method, image processing device, image processing method, and image display system

There is provided a communication apparatus including an antenna unit configured to transmit or receive a wireless signal, and a wireless processing unit configured to process the wireless signal transmitted or received via the antenna unit. The antenna unit is configured or arranged to maintain a satisfactory communication characteristic regardless of arrangement and a direction with respect to an antenna of a communication partner apparatus that transmits or receives a wireless signal of high directivity.

Communication apparatus

An ultrasonic diagnostic apparatus has a storage unit for storing the elastic volume data generated on the basis of the ultrasonic image data obtained by transmitting/receiving ultrasonic waves to/from an object to be examined, an input unit for setting a region of interest in the space which is occupied by the elastic volume data, an extraction unit for extracting from the elastic volume data a voxel group having the voxel values within a set elasticity range which is set based on the elasticity value of the voxels in the region of interest, a 3-dimensional elastic image creation unit for generating a 3-dimensional elastic image basis on the elastic volume data of the voxel group which is extracted by the extraction unit or the elastic volume data excluding the extracted voxel group; and an image display unit for displaying the 3-dimensional elastic image generated by the 3-dimensional elastic image creation unit.

Ultrasonic diagnostic apparatus

An ultrasound elasticity imaging apparatus includes an elastic data processing section which processes a received signal detected by an ultrasound probe and generates elastic frame data, a display evaluation section which evaluates a display value of the elastic frame data based on various data in the generation of the elastic frame data, a display processing section which performs image processing of the elastic frame data according to the evaluation result by the display evaluation section, and a display section which displays an elastic image based on the elastic frame data processed by the image processing section.

Ultrasound probe and ultrasound elasticity imaging apparatus

An ultrasonic diagnostic apparatus is disclosed for imaging 3-dimensional images by irradiating ultrasonic waves to an object and reconstructing the 3-dimensional image. The ultrasonic diagnostic apparatus includes an ultrasonic probe for transmitting/receiving ultrasonic waves to/from an object to be examined, an ultrasonic image construction unit for constructing a 3-dimensional ultrasonic image based on the 3-dimensional ultrasonic image data from the ultrasonic signals received from the ultrasonic probe, and a display unit for displaying the 3-dimensional ultrasonic image. A position sensor is provided for detecting the position of the ultrasonic probe. A positional information analyzing unit stores the first position of the ultrasonic probe obtained from the position sensor and analyzes the positional relationship between the first position and the second position. The ultrasonic image construction unit converts the 3-dimensional ultrasonic image data obtained at the second position into a 3-dimensional ultrasonic image at the first position according to the positional relationship, thereby constructing the 3-dimensional ultrasonic image at the first position.

Ultrasonic diagnostic apparatus and ultrasonic imaging method

A three-dimensional ultrasonic image with which the positional relationship between tissues can be surely grasped is generated. Accordingly, an ultrasonic imaging apparatus and a projection image generating method according to the present invention acquire first three-dimensional image data and second three-dimensional image data, generate a first projection image on the basis of at least a part of the first three-dimensional image data and the second three-dimensional image data, and generate a second projection image on the basis of at least a part of the second three-dimensional image data and the first three-dimensional imaged data.

Ultrasonic imaging apparatus and projection image generating method

An ultrasound diagnostic apparatus includes an ultrasound probe which transmits/receives an ultrasound wave with respect to a subject to be diagnosed, an ultrasound wave transmit section which transmits an ultrasound wave for driving the ultrasound probe, a pressing section which applies an external pressure to the subject, a displacement measuring section which obtains two tomographic image data different in time series from a reflected echo signal received from the ultrasound probe and measures a displacement of each part in the subject based on the two tomographic image data, an image generating section which generates an elastic image from elasticity information based on the displacement of each part measured by the displacement measuring section, and a display section which displays the generated elastic image. Further, a pressing decision section decides whether or not the pressing operation by the pressing section is proper.

An ultrasound diagnostic apparatus including: a tomogram forming means forming a tomogram of a diagnosis portion of an examinee by transmitting/receiving an ultrasound wave to/from the examinee via an ultrasound probe; color Doppler image forming means forming a color Doppler image based on a Doppler signal obtained from the diagnosis portion; image processing means performing image processing on the tomogram and the color Doppler image; and display means displaying images obtained by the image processing means, the tomogram and the color Doppler image being color displayed on the display means, wherein the image processing means causes the color Doppler image to be displayed transparently.

Ultrasonographic device and ultrasonographic method

The present invention is to provide a velocity measuring method and a velocity measuring device for carrying out the method. The velocity measuring method includes: a step (S) for expanding N time series signals by using 0-th to (N&#x2212;1)-th degree discrete Legendre function as a base; a step (S) for calculating 2n-th degree complex expansion coefficient by multiplying a linear combination of a (2n&#x2212;1)-th degree expansion coefficient and a ( 2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result and a 2n-th degree expansion coefficient, and calculating a (2n+1)-th degree complex expansion coefficient by multiplying the (2n+1)-th degree expansion coefficient by an imaginary unit and then linearly combining the result, the 2n-th degree expansion coefficient and a (2n+2)-th degree expansion coefficient; a degree decision step (S) for determining the degree m of a coefficient having the maximum absolute value among the complex expansion coefficients; and a step (S) for calculating a signed velocity signal concerning a moving reflection object from a ratio of square sums of the expansion coefficients or complex expansion coefficients corresponding to the degree m.

Velocity measuring method and velocity measuring device using the same

The present invention realizes a Doppler velocity detecting technique capable of performing velocity detection and analysis with a suppressed error while excellently distinguishing a clutter signal, and provides an ultrasonographic device using the technique. In a Doppler velocity detection device comprising means for transmitting/receiving pulse waves to/from a subject a plurality of times, and velocity analyzing means for analyzing a velocity of a moving reflector in the subject on the basis of a reception echo signal, the velocity analyzing means obtains a complex expansion coefficient by linearly connecting an expansion coefficient of an even-numbered degree term and an expansion coefficient of an odd-numbered degree term which is different from the even-numbered degree term by one degree, derived when reception echo time-series signals obtained by arranging reception echo signals of equal lapse time from pulse transmission times in order of the transmission times are expanded as components of a Legendre polynomial starting from the 0th degree, by using an imaginary unit as a coefficient, and obtains a signed velocity signal of a moving reflector in the subject on the basis of-the ratio between the magnitude of each complex expansion coefficient and the magnitude of an interval between the complex expansion coefficients.

Doppler velocity detection device and ultrasonographic device using the same

An ultrasound probe includes an ultrasound wave transmit/receive surface coming into contact with a contact surface of a subject, an ultrasound wave transmit/receive section which transmits an ultrasound wave to the subject via the ultrasound wave transmit/receive surface and the contact surface and receives an ultrasound wave reflected in the subject, and a pressing mechanism for performing a pressing operation for applying a pressure to the contact surface perpendicularly to the ultrasound wave transmit/receive surface via the ultrasound wave transmit/receive surface.

Ultrasonic probe and ultrasonic elasticity imaging device

An image-processing apparatus operates in different orientations, producing a source image that may be either right-side up or upside down. The source image is stored in a memory circuit, read from the memory circuit on one order if right-side up, and read from the memory circuit in a different order if upside down, generating an output image that is always right-side up.

Imaging apparatus and method with upside-down mode and normal mode transitioning

In order to suppress generation of waste matter which results from removing a backside film formed by growing a film on both surfaces of a semiconductor substrate and thereby attain satisfactorily high yield and productivity, on a semiconductor substrate a polycrystalline silicon film is formed through double-sided growth, and only on the obverse surface of the semiconductor substrate a silicide film is formed thereon, and then those polycrystalline silicon film and silicide film are worked into shape to form gate electrodes After that, on the semiconductor substrate an insulating film for sidewall formation is formed to cover the gate electrodes through double-sided growth, and the insulating film for sidewall formation formed on the obverse surface of the semiconductor substrate is etched to form sidewall films. Only on the obverse surface side of the semiconductor substrate an interlayer insulating film is formed to cover the gate electrodes and thereafter the polycrystalline silicon film and the insulating film for sidewall formation, both of which are formed on the reverse surface side of the semiconductor substrate as well as a part of said semiconductor substrate in depth from the reverse surface are removed by grinding, whereby a semiconductor device is fabricated.

Manufacturing method of semiconductor device

A plug material is filled inside a lower via hole formed in a lower interlayer insulating film, thereby to create a void inside the lower via hole. The void is filled with a filling material. Even if a film formed on the surface of the lower interlayer insulating film is etched, the void is prevented from being expanded. An upper interlayer insulating film is formed on the lower interlayer insulating film. The upper interlayer insulating film is etched so as to form an upper via hole in an area just above the lower vial hole. As a result of this etching, the filling material is removed, so that the void can not be expanded. After this, predetermined upper wiring, etc. is formed, thus completing a semiconductor device.

Semiconductor device and manufacturing method therefor

A mask ROM is so configured as to read out information through the utilization of a cumulative time delay involved when a read-out signal applied to memory elements making connection between a word line WL1 and bit lines BL1 crossing the word line is passed through delay elements R1 to R7, that is, as to read out stored information on a time base, in which the conductions of switching transistors T1 to T8 are controlled by the outputs of the delay elements R1 to R7 and the information appearing at the bit line BL1 is sequentially read out at a predetermined time corresponding to a time delay resulting from the delay elements R1 to R7.

Growing community of inventors

Tokyo, Japan

Tetsuya Hayashi