Abstract: A sinogram is corrected in a form that can use a straight-ray type reconstruction method while considering trajectory of refracted waves. Specifically, based on the sequentially estimated path information of the virtual waves, an arrival time difference sinogram is corrected by a difference or a ratio between “shortest arrival time of wave” and “arrival time of the wave through the shortest path” to each detection element.

Abstract: Provided herein is a phantom capable of mimicking both a dense breast and a fatty breast. A phantom for ultrasound measurement includes: a first member that mimics an object of interest for measurement; and a second member having provided therein the first member. The second member has the property to decrease its sound speed with a temperature increase brought by external temperature control. The sound speed of the second member at a predetermined temperature is equal to the sound speed of a third member surrounding the second member. The first member and the second member are immiscible with each other.

Abstract: Information relevant to a state of a tissue in a subject (state information) is provided with technology reducing the amount of memory and computation necessary at the time of extracting the information. An ultrasonic wave is transmitted towards a subject, a transmission wave transmitted through the subject or a reflection wave reflected on the subject is received. A reception signal is generated on the basis of the transmission wave or the reflection wave. A tissue region candidate, of a region indicating a tissue of the subject, is set on the basis of the reception signal. State information, which is information relevant to a state of the tissue in the tissue region candidate, is calculated on the basis of the reception signal and the tissue region candidate. An ultrasonic image reflecting the state information is generated on the basis of the state information and displayed.

Abstract: To provide a system for controlling power supplies in a device including batteries 12, 13, and 14 by wireless signals with high reliability. The system includes the batteries 12, 13, 14, a power supply control device 1 supplied with power from the batteries 12, 13, and 14, and a controller 15 for making wireless communication with the power supply control device 1. The power supply control device 1 includes a startup unit 37 for receiving a wireless startup signal transmitted from the controller 15 and controlling power supplying from the batteries to the power supply control device, and a communication unit 10 for making wireless communication with the controller. While the startup unit 37 is receiving the wireless startup signal, wireless communication is made by the communication unit 10.

Abstract: An ultrasonic imaging device according to the present invention includes: a container provided with an opening for inserting a target region of a subject; and a transmission/reception unit that transmits ultrasound to the target region inserted into the container filled with a liquid and receives the ultrasound that penetrates the target region or is reflected from the target region. The container has a pressure reducing unit that holds the target region in the container by reducing a pressure in the container of which the opening is covered with the target region. According to the present invention, since it is possible to maintain a shape close to a predetermined shape when the target region of a breast or the like is inserted into a container filled with the liquid, it is possible to measure the target region with high accuracy by transmitting and receiving ultrasound.

Abstract: According to the present invention, a clear transmitted wave image of a boundary of tissues is generated in a short time. An ultrasonic imaging device of the present invention includes a transducer array in which a plurality of transducers transmitting and receiving an ultrasound wave are arrayed; a transmission unit which delivers an electric signal to at least one of the plurality of transducers, such that the delivered electric signal is converted into an ultrasound wave, and transmits the ultrasound wave to a target; a reception unit which receives a received signal that is an electric signal output by each of the plurality of transducers having received a reflected wave and a transmitted wave of the ultrasound wave of the target; and an image generation unit which individually generates a reflected wave image of a cross section of the target using a received signal of the reflected wave and a transmitted wave image of the cross section of the target using a received signal of the transmitted wave.

Abstract: An ultrasound diagnosis device includes: an ultrasound probe which transmits an ultrasound wave toward a examinee and receives a reflected wave from the examinee; and a main device which controls the transmitting and receiving of the ultrasound waves from the ultrasound probe and is operated to receive a receiving signal obtained by receiving the reflected wave from the examinee by the ultrasound probe, to generate an ultrasound image of the examinee, and to display the ultrasound image on a display screen, wherein the ultrasound probe includes a plurality of subarrays having a plurality of element circuits transmitting and receiving ultrasound signals and a plurality of reference voltage sources, and the plurality of subarrays and the plurality of reference voltage sources have a one-to-one correspondence.

Abstract: An error in a physical property value due to refraction of an ultrasonic wave is reduced, and thus the physical property value is calculated with high accuracy. A transducer of a transducer array transmits an ultrasonic beam to a subject placed in a predetermined imaging space, the transducer receives a transmission of the ultrasonic beam transmitted through the subject, and an image generating unit generates a transmission image based on the reception signal. The controller includes a focal length adjusting unit that adjusts a length between a focal position of the ultrasonic beam and the center of an imaging space to adjust a divergence angle of the ultrasonic beam.

Abstract: There is provided an ultrasonic signal processing apparatus in which the amount of an ultrasonic propagation material in a measurement unit that stores a transducer array is reduced while the transducer array and a target are separated from each other, and thus maintenance of the ultrasonic propagation material is easily managed. The ultrasonic signal processing apparatus includes a water tank having an opening portion, a measurement unit, and a moving unit. The measurement unit which is disposed on an outside of the water tank, includes a transducer array that transmits and receives an ultrasonic signal, and a space which is filled with a material for propagating the ultrasonic signal, and measures the ultrasonic signal. The moving unit is connected to the measurement unit, and moves the measurement unit between the opening portion and the bottom portion of the water tank, along a side wall thereof.

Abstract: A power supply startup system activates a power supply of a device provided with a battery or the like at high speed by a wireless signal while suppressing current consumption on standby. The power supply startup system includes a battery, a device supplied with a power from the battery, and a controller which performs wireless communication with the device. The device includes a power supply section which generates a power supply from the battery, a startup section which receives a wireless startup signal transmitted by the controller and outputs a startup signal to the power supply section, a control section which controls the power supply section and the startup section, and a wireless communication section which performs wireless communication with the controller. The wireless startup signal includes at least two signal regions of a first stage and a second stage.

Abstract: An electromagnetic wave propagation medium 1 extends in the propagation direction of an electromagnetic wave and has an electromagnetic wave propagation space sandwiched between conductors in the direction perpendicular to the electromagnetic wave propagation direction. A base unit 2 and multiple terminals 3 are placed on the electromagnetic wave propagation medium 1. When the position of a terminal 3 is detected, the base unit 2 transmits a position detection signal through the electromagnetic wave propagation medium 1 to the terminal 3. This position detection signal is attenuated more heavily during its propagation through the electromagnetic wave propagation medium 1 than a communication signal for use in normal communication is. The signal strength of the position detection signal drops as it moves away from the base unit 2. Hence the position of each terminal 3 can be detected based on the signal strength of the position detection signal received by each terminal 3.

Abstract: To provide a system for controlling power supplies in a device including batteries 12, 13, and 14 by wireless signals with high reliability. The system includes the batteries 12, 13, 14, a power supply control device 1 supplied with power from the batteries 12, 13, and 14, and a controller 15 for making wireless communication with the power supply control device 1. The power supply control device 1 includes a startup unit 37 for receiving a wireless startup signal transmitted from the controller 15 and controlling power supplying from the batteries to the power supply control device, and a communication unit 10 for making wireless communication with the controller. While the startup unit 37 is receiving the wireless startup signal, wireless communication is made by the communication unit 10.

Abstract: Communication distance can be extended in a battery system that transmits states of the battery cells by wireless communication. Each of cell controllers wirelessly transmits measurement result of states of battery cells in cell groups to a battery controller, by using an electric power supplied from the battery cells in the cell groups. The battery controller continuously transmits unmodulated carrier wave to each of the cell controllers. Each of the cell controllers changes an impedance for the unmodulated carrier wave transmitted from the battery controller at a predetermined timing in dependence on the measurement result of the states of the battery cells in the cell groups. Due to this, the measurement result of the states of the battery cells in the cell groups is wirelessly transmitted to the battery controller.

Abstract: A power transmission device has a short height and a small size and is capable of transmitting high power with high efficiency. The power transmission device includes first resonators, second resonators coupled to the first resonators via electromagnetic waves, a primary circuit connected to an input end of the first resonator, and a secondary circuit connected to an output end of the second resonator. The first resonator is insulated from the second resonator. Output impedance of the primary circuit is different from input impedance of the secondary circuit. Impedance matching is performed between the output impedance of the primary circuit and impedance in the case of viewing the first resonator side from the input end of the first resonator, and impedance matching is performed between the input impedance of the secondary circuit and impedance in the case of viewing the second resonator side from the output end of the second resonator.

Abstract: An electromagnetic wave propagation device includes multiple planar propagation media each formed by laminating at least one planar conductor and at least one planar dielectric, multiple transceivers for transmitting and receiving information among electronic apparatuses, and a first interface for transmitting and receiving the electromagnetic wave between the transceivers and the planar propagation media. Planar dielectric spacers are provided for isolating the multiple planar propagation media from one another. The planar propagation medium is disposed to have an overlapped part with at least the other of the planar propagation media so that an obverse face of the medium and a reverse face of the other medium are at least partially overlapped with each other. The planar conductor is provided with an electromagnetic wave linking unit at the overlapped part that transmits and receives the electromagnetic wave between the planar propagation media.

Abstract: The disclosed electromagnetic wave transmission medium prevents electromagnetic leakage during high-power electromagnetic wave transmission. The sheet-form electromagnetic wave transmission medium is configured from a first mesh conductor used in transmission of electromagnetic waves having a first power; and a second mesh conductor used in transmission of electromagnetic waves having a second power. By using two mesh conductors, when said sheet-form electromagnetic wave transmission medium is used, the conduction density of the surface region where electromagnetic waves are extracted to be used for power supply assumes a coarser state than that of the other surface region.

Abstract: An assembled battery system includes: a control unit having a cell monitoring unit for obtaining battery information by monitoring the battery state of each secondary battery belonging to a storage battery module and a wireless communication unit for, inside a metal chassis housing the storage battery module, wirelessly transmitting the battery information; and a management device for, inside the metal chassis, wirelessly communicating with and managing each of the storage battery modules. The management device transmits to each of the storage battery modules a measurement instruction including information specifying the next measurement timing at predetermined intervals and controls the cell monitoring unit to measure, according to the measurement instruction, the battery states of the storage batteries concurrently among a storage battery modules.

Abstract: When a wavelength of an electromagnetic wave in an electromagnetic wave propagation space (4) is ?, and n is an integer, in a case where a first conductive layer (2) and a second conductive layer (3) are short-circuited in a first end surface (7b), the more distant an electromagnetic wave output interface (6) is from an electromagnetic wave input interface (5), the closer to a distance of ?/4+n·?/2 from the first end surface (7b) which is short-circuited the electromagnetic wave output interface is installed, and, in a case where the first conductive layer (2) and the second conductive layer (3) are not short-circuited in the first end surface (7b), the more distant the electromagnetic wave output interface (6) is from the electromagnetic wave input interface (5), the closer to a distance of n·?/2 from the first end surface (7b) which is not short-circuited the electromagnetic wave output interface is installed.

Abstract: A power supply startup system activates a power supply of a device provided with a battery or the like at high speed by a wireless signal while suppressing current consumption on standby. The power supply startup system includes a battery, a device supplied with a power from the battery, and a controller which performs wireless communication with the device. The device includes a power supply section which generates a power supply from the battery, a startup section which receives a wireless startup signal transmitted by the controller and outputs a startup signal to the power supply section, a control section which controls the power supply section and the startup section, and a wireless communication section which performs wireless communication with the controller. The wireless startup signal includes at least two signal regions of a first stage and a second stage.

Abstract: A battery system that is capable of transmitting the voltage value of each cell by means of wireless communication while suppressing costs and suppressing the number of components includes: a plurality of cells, each having a positive electrode terminal and a negative electrode terminal; voltage detection circuits that detect the voltages of the plurality cells; voltage detection lines that connect each of the positive electrode and negative electrode terminals of the cells to each voltage detection circuit; and an upper controller that performs wireless communication with the voltage detection circuits so as to receive, from each of the voltage detection circuits, the corresponding voltage of each cells. The voltage detection lines function as an antenna used to provide wireless communication between the voltage detection circuit and the upper controller.