Sony Corporation

Hitachi, Ltd.

Hitachi Automotive Systems, Ltd.

Koji Obata

Motoki Kato

Nobuhiro Igi

Hiroshi Kobayashi

Ryozo Takeuchi

Takashi Yasuhara

Takayuki Koizumi

Yoshikazu Takashima

Takashi Ishigami

Yutaka Matsunobu

Toshiaki Ueda

Keiji Suzuki

Katsuhiro Hoshino

Junpei Kusukawa

Minoru Morio

Tomoyuki Sato

Yutaka Higashimura

Kazumi Sato

Satoshi Kikuchi

Kiyoshi Ota

Takashi Naganawa

Akiyoshi Komura

Shinji Sugimoto

Yoshikatsu Niwa

Kyoko Fukuda

Shin Onose

Shinya Masunaga

Hiroaki Kojima

Noriaki Oishi

Tomoaki Takemura

Takahiro Ichikawa

Takeshi Obata

Hajime Nitta

Kazunori Yamamoto

Hidemitsu Kobayashi

Makoto Korehisa

Junichi Otani

Akira Toba

Masaharu Senoo

Hideyuki Narita

Shuya Hagiwara

Yoshimi Kurahara

Akihiro Sekine

Mituru Itou

Kan Iibuchi

The present disclosure relates to a surgical system, a surgical device, and a surgical method with which startup time can be shortened. Upon receipt of an instruction from a startup execution process, a high-speed startup driver creates a high-speed startup image and writes it to an SSD. The startup execution process is a process that is executed first after an OS is started up, and has the function of executing, in cooperation with the high-speed startup driver, startup of various processes in an endoscope program, creation of a high-speed startup image, and return from the high-speed startup image. The present disclosure can be applied to, for example, a surgical system provided with an imaging device including an endoscope or a microscope.

Medical system, medical device, and medical method

A phase-to-phase insulation partial discharge inspection apparatus includes: an impulse power supply () configured to apply an impulse voltage having a voltage rise time period tr which satisfies an expression 'tr&#x3e;(&#x3c4;&#xb7;V)/(PDIV)' to a rotary electric machine (); a measurement section () configured to measure partial discharge which occurs when the impulse voltage is applied to the rotary electric machine (); and a decision section () configured to determine that, when partial discharge is not measured by the measurement section (), a phase-to-phase insulation performance is acceptable. In the expression, &#x3c4;is a surge propagation time period of one coil of a rotary electric machine winding, PDIV a partial discharge inception voltage between winding turns, and Va peak of a partial discharge testing voltage for the phase-to-phase insulation.

Inverter-driven rotary electric machine, phase-to-phase insulation partial discharge inspection method and phase-to-phase insulation partial discharge inspection apparatus

The present invention provides a partial-discharge measurement method in which a partial-discharge defect signal and noise are separated, a partial-discharge defect position is detected, and the risk of a detected partial discharge defect is diagnosed. Further, this method provides a highly reliable high-voltage device. An electromagnetic wave generated by a sample is simultaneously measured by a plurality of sensors. A partial discharge and noise are separated through the comparison of the spatial intensity distribution of measured signals and a spatial signal intensity distribution measured beforehand at the time of the occurrence of a partial discharge, and a defect position is detected using a peak position. Further, the risk of a defective site is diagnosed on the basis of a simultaneously measured charge amount signal.

Partial-discharge measurement method and high-voltage device inspected using same

A rotating electric machine includes: a stator including a stator core, slots provided in the stator core at equal intervals along the circumferential direction, and coils placed in the stator slots and configured to generate a rotating magnetic field; and a rotor rotatably provided with a predetermined rotation gap between the stator core and the rotor, wherein the rotating electric machine further includes a first varnish applied between the slots in the stator core and the coils for impregnation, and a second varnish applied directly onto enamel coating of the coils outside of the slots in the axial direction, the first varnish is a thermosetting varnish having a shear bond strength of a flat wire between the coils and the varnish is higher than that of the second varnish, and the second varnish is a thermosetting varnish having a glass transition temperature of approximately 104&#xb0; C. or lower and the glass transition temperature of the second varnish by the Dynamic Mechanical Analysis (DMA) method is lower than that of the first varnish.

Rotating electric machine and method of manufacturing same

With a rotating electric machine testing method for applying a test voltage to an armature winding of the rotating electric machine to thereby test insulation performance of the armature winding, in the case where a rated voltage of the armature winding of the rotating electric machine is E, and an insulation test voltage of an armature winding of a sine wave voltage drive rotating electric machine at the rated voltage E is E/&#x221a;{square root over (3)} or E, a test voltage Vapplied to an armature winding of the inverter drive rotating electric machine is set to V=&#x3b1;&#xb7;E/&#x221a;{square root over (3)} or V'=&#x3b1;&#xb7;E, respectively, provided that &#x3b1;(=t/t), if the insulation thicknesses of the sine wave drive rotating electric machine is tand of the inverter drive rotating electric machine is t, thereby conducting a test on any of the AC voltage-current characteristic, AC tan &#x3b4;, and AC partial-discharge characteristics.

Method for testing an inverter drive rotating electric machine

In a rotating electrical machine, a conductive foil or conductive rubber is applied to the surface of insulation layer of a conductor series connection area or to the surface of insulation layer of a turn conductor of coils of rotating electrical machine winding, waveforms of grounding voltages of the individual turn conductor portions are measured through the medium of an electrostatic capacitance of the insulation layer of coil conductor series connection area or through the medium of the insulation layer of coil turn conductor, and a partial discharge is measured while measuring a voltage developing in the coil or across a winding turn in the coil from a difference between the waveforms of grounding voltages.

Method of testing partial discharge of rotating electrical machine driven by inverter

A rotating electric machine for an electric vehicle, installed in a vehicle and driven by an inverter power source, includes: a partial discharge measuring device that measures partial discharges occurring in insulated areas between windings, between phases and between the rotating electric machine and a ground.

Rotating electric machine for electric vehicle, drive control device and insulation diagnosis method

A rotating electrical machine includes: a stator that includes a cylindrical stator core and a stator winding wire wound around the stator core; and a rotor disposed facing the stator via a gap; wherein at least one cooling medium path extending in a direction of a central axis of the stator core is provided in the stator; and the cooling medium path is inclined relative to the central axis of the stator core.

Rotating electrical machine having a plurality of cooling medium paths

The power distribution unit for a rotary electric machine includes a connecting ring unit that connects stator coils of the same phase. The connecting ring unit includes at least one linear conductor integrally formed in a ring-like shape, and the connecting ring unit includes a terminal section integrally formed in the linear conductor. The terminal section is constituted by a hole through which a wiring end of the stator coil is inserted and a protrusion formed in a direction of the hole to which the wiring end of the stator coil is connected. Also disclosed are a rotary electric machine includes the power distribution unit and a method for assembling a rotary electric machine.

Power distribution unit for rotary electric machine with linear conductor connecting ring having terminal section with axially extending hole for connecting stator coil, and method for assembling rotary electric machine

There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit.

Receiving device, clock synchronizing method, and computer program

The stator includes a plurality of concentrated winding coils disposed coupled into an annular form through yokes, and a plurality of conductors that couple the coil ends of the concentrated winding coils to each other in a multi-phase connection fashion. Conductors for a U-phase, a V-phase, a W-phase, and neutral points P are each formed of a plurality of holes for inserting therethrough coil ends and are substantially circular with different diameters, and are disposed on the same plane. A connection plate provided with a wall is inserted between the conductors and the concentrated winding coils. A rotating machine includes the above-mentioned stator and a rotor that is rotatable within the stator.

Stator for rotating machine and rotating machine using the same

An inverter-driven rotating machine system is provided in which three-phase AC electric power of the inverter is supplied to a rear motor generator by using a cable. One end of an additional cable is connected to rotating machine terminals, namely motor input terminals of a motor case. The other end is connected to fixed voltage terminals, namely inverter additional terminals on an outer case of the inverter via resistors.

Inverter-driven rotating machine system, rotating machine and inverter used in the same and electric vehicle using the same

A rotating electric machine includes a stator core of a cylindrical shape, a rotor core coaxially rotating inside the stator core, and a plurality of coils each formed by winding magnet wires using a slot formed axially in either the stator core or the rotor core, or both: it is preferable that each of the coils be split into a plurality of coil groups, that starting sections of winding of the magnet wires in one of the coil groups be wound adjacently to ending sections of winding of the magnet wires in another of the coil groups, and that the starting sections and ending sections of winding of the magnet wires in the two coil groups be connected at respective outgoing wire ends to one another, outside the slots.

Rotating electric machine, winding machine, and rotating electric machine system

A stator coil is configured of a first group of six turns of conductive wire, and a second group also of six turns, with the first group of six turns being wound on a spool, leaving a gap the same as the diameter of the conductive wire between winds. Upon completion of winding the first group, the winding is turned back, and the second group of six turns is wound in the gap, so as to be adjacent to the turns of the first group. The article is then inserted into a slot in a stator core of a stator, thereby configuring a stator coil. This provides for a rotating electrical machine and manufacturing method thereof with improved insulation resistivity regarding inverter surge voltage, and moreover high output can be obtained with a machine of comparable external dimensions with conventional machines.

Rotating electrical machine and manufacturing method thereof

FIG.B shows buffer occupancy rate of a transport stream bufferwhen a TS packet is transferred to the transport stream bufferhaving a transport rate Rt and a leak rate Rx. A time Tduring which the buffer occupancy rate of the transport stream bufferincreases and a time Tduring which the buffer occupancy rate of the transport stream bufferdecreases are expressed by (Rt&#x2212;Rx)&#xd7;T=Rx&#xd7;Tand T=(188&#xd7;8)/Rt. A time T is T=T+T=(188&#xd7;8)/Rx. Therefore, the time T is equal to a time T' shown in FIG.C. Thus, when a TS packet is transferred in a cycle of the time T&#x2032;, the transport stream bufferwill not overflow and the transport stream bufferbecomes empty at least once a second, whereby simulation for the transport stream bufferis not required in the simulation for the T-STD model.

Data multiplexer, data multiplexing method, and recording medium

Growing community of inventors

Tokyo, Japan

Koji Obata