Hitachi, Ltd.

Renesas Technology Corp.

Hitachi Automotive Systems, Ltd.

Renesas Electronics Corporation

Hitachi Astemo Ltd.

Other

Hitachi Construction Machinery Co., Ltd.

Eisai Company, Limited

Hitachi Kenki Fine Tech Co., Ltd.

Eisai R&d Management Co., Ltd.

Hitachi Engineering Co., Ltd.

Xanavi Informatics Corporation

Hiroshi Kuroda

Satoru Kuragaki

Kazuaki Takano

Toshimichi Minowa

Takafumi Morimoto

Akira Kitayama

Ken Murayama

Kozo Nakamura

Hiroshi Takenaga

Tokuji Yoshikawa

Hideyuki Nagaishi

Shiho Izumi

Mitsuo Kayano

Tatsuya Ochi

Akira Kuriyama

Kenichirou Kurata

Fumihiko Okai

Yoshinori Endo

Takenori Hiroki

Yukio Kenbou

Tooru Kurenuma

Shigeru Miwa

Yuuichi Kunitomo

Harumasa Onozato

Kazuhiko Hiranuma

Hiroaki Yanagimoto

Takashi Shirai

Masahiro Watanabe

Toshihiko Nakata

Yoshiyuki Abe

Manabu Edamura

Tadashi Fujieda

Yukio Kembo

Yasuhiro Gunji

Naoyuki Shimomura

Mitsuru Nakamura

Nobuhiro Kinoshita

Shuichi Baba

Hiroto Morizane

Terumi Nakazawa

Manabu Sasho

Toshio Fujiwara

Toru Kurenuma

Hideo Hiroshige

Yoshiyuki Nagano

Yoshihiko Hisatake

Hideo Koike

Okude Mariko

Ke'nichirou Kurata

Ichiro Hondo

Keiichi Betsui

Seiichi Mita

Masatoshi Hoshino

Manabu Kubota

Tatsuhiko Monji

Nobuo Kurihara

Toshio Manaka

Takahiro Naito

Kazuhiko Sato

Shinichi Sakamoto

Takeshi Shima

Junichi Ishii

Shigeto Negi

Hisashi Nakamura

Seiji Murata

Kimiya Yamaashi

Kishio Hidaka

Shigeru Oho

Atsushi Kanke

Atsushi Watanabe

Takafumi Kikuchi

Taisetsu Tanimichi

Takao Kojima

Hiroshi Kondoh

Mitsuo Hayashibara

Tomoichi Ebata

Yorihisa Hoshino

Masahiro Komachiya

Takaharu Ishida

Toshiyuki Aoki

Mitsuhide Sasaki

Mikihiko Onari

Jiro Takezaki

Yuki Horita

Tomio Tsurugi

Toshikazu Shimizu

Masahiko Tsujii

Ken Furukawa

Noriaki Sakamoto

Kazuhiro Yoshizawa

Kazuo Matsuura

Mitsushige Suzuki

Kazuhiko Hanawa

Nobuyuki Ueki

Takeo Shibata

Jie Bai

Akio Kayano

Toru Yamada

Yoshinari Hayashi

Toshikazu Ishikawa

A reception power supplying unit generates each of reception signals before and after a switching operation. A signal processing circuit generates each of difference signals before and after the switching operation on the basis of the reception signal and a reference signal. A phase difference detector calculates, as a transmission phase difference, the phase difference between transmission power supplying units on the basis of the respective difference signals, and adjusts a phase shift amount on the basis of the transmission phase difference and a set phase difference that is previously set.

Radar sensor

The present invention minimizes the overall area occupied by a reception antenna while preventing erroneous detections resulting from azimuth aliasing. A reception antenna includes antenna elements that are disposed along the horizontal direction, antenna elements that are disposed along the vertical direction, and an antenna element that is disposed at an angle from the antenna elements with respect to the horizontal direction and is disposed at an angle from the antenna elements with respect to the vertical direction. The distance between the centers of the antenna elements in the horizontal direction differs from the distances between the center of the antenna element and the respective centers of the antenna elements in the horizontal direction. The distance between the centers of the antenna elements in the vertical direction differs from the distances between the center of the antenna element and the respective centers of the antenna elements in the vertical direction.

Radar device and antenna device

The present invention provides an antenna comprising: a radiation unit that is formed on a substrate; a waveguide that propagates therein radio waves radiated from the radiation unit and radiates the radio waves as a beam; and a dielectric lens that is arranged in an opening of the waveguide and has an incident plane facing the radiation unit and a radiation plane radiating radio waves entered from the incident plane. The radiation plane of the dielectric lens has a plane orientation different from a flat plane perpendicular to the radiation direction of the beam.

Antenna, array antenna, radar apparatus, and in-vehicle system

The present invention provides a radar device capable of reducing processing load while arraying receiving antennas in two directions. In the present invention, a transmitting unit (transmitting antenna) transmits an electromagnetic wave. A plurality of receiving antennasreceive a reflected wave from an object which reflects the electromagnetic wave, and convert the reflected wave into a first signal Sig. A plurality of receiving circuitsare respectively connected to the receiving antennasand generate a second signal Sigfrom the first signal Sig. A signal processing unitprocesses the second signal Sig. The plurality of receiving antennasare arrayed in a first direction and a second direction crossing the first direction. The signal processing unitswitches the combination of the second signal Sigthat is processed, for each frame indicating a time period extending from when the transmitting antenna transmits the electromagnetic wave to when the signal processing unitprocesses the second signal Sig

Radar device

The present invention realizes stable operation of a radar device even if there is radio wave interference between multiple radar devices. A radar deviceis provided with the following: an oscillatorthat generates a modulated signal that has undergone frequency modulation; a transmission unitthat emits a transmission signal that has undergone frequency modulation during a prescribed modulation operation period using the modulated signal generated by the oscillator; a reception unitthat receives a reception signal which is the transmission signal that has been reflected off of an object in the area; and a signal processing unit. The signal processing unitis provided with: an object information calculation unit that calculates information of an object on the basis of the reception signal; an interference state analysis unit that measures a surrounding radio wave interference state, from a prescribed minimum frequency Fmin to a maximum frequency Fmax, during a search modulation operation period that does not overlap the modulation operation period; and a band selection unit that selects a frequency band of the transmission signal on the basis of the radio wave interference state measured by the interference state analysis unit.

The present invention is an antenna provided with: a plurality of radiating parts formed on a base plate; a waveguide tube inside of which radio waves emitted from the radiating parts propagate; a lens having a plurality of curved surfaces having a substantially hyperbolic shape and disposed in an opening of the waveguide tube; and a protruding part formed in a tapered shape between the plurality of radiating parts. The tip of the protruding part is formed at a position lower than an opening surface.

Antenna, sensor, and vehicle mounted system

Provided is an antenna which includes a plurality of radiating portions which are formed on a substrate and a plurality of dielectric lenses for respectively converting a spherical wave radiated from each radiating portion into a plane wave, wherein the shape of a cross section of each dielectric lens perpendicular to a radiation direction of a beam is formed in a shape which radiates a beam which is narrower in a second direction than in a first direction orthogonal to the second direction, and the plurality of dielectric lenses are arranged side by side in the second direction so that beams radiated from the respective dielectric lenses are synthesized.

Antenna, sensor, and in-vehicle system

A sensor has an antenna. The antenna includes a radiation source and a wave guide. The radiation source is formed on a substrate. The wave guide internally propagates electromagnetic waves radiated from the radiation source and radiates the electromagnetic waves as a beam. The wave guide has a radiation-side opening in which a first direction and a second direction are orthogonal to each other, and the second direction is longer than the first direction. In a cross-sectional shape of the beam, perpendicular to a radiation direction of the beam radiated from the wave guide, a first direction and a second direction are orthogonal to each other, and the second direction is narrower than the first direction.

Sensor with flat-beam generation antenna

A vehicle control apparatus that makes it possible to attempt fuel consumption improvement and exhaust gas reduction effectively without causing a sense of incompatibility in the driver is provided. When traveling following the preceding vehicle, kinetic energy required for an own vehicle in future is predicted on the basis of kinetic energy of the own vehicle, a velocity of a preceding vehicle, and a distance between the own vehicle and the preceding vehicle. It is determined whether there is kinetic energy enough for the own vehicle to be able to follow the preceding vehicle with inertial traveling, on the basis of the predicted kinetic energy and current kinetic energy. When it is determined that the kinetic energy is sufficient and the driving and traveling state of the own vehicle satisfies other traveling idling reduction conditions, control of stopping the engine is exercised.

Vehicle control apparatus and vehicle control method

The present invention addresses the problem of providing an imaging device that prevents mismatching in image matching for parallax calculation even if the sharpnesses of an end part and center part of a processing area differ. An imaging deviceaccording to the present invention is provided with a means for equalizing the sharpnesses of the processing areas of a reference image and a comparison image.

Imaging device

Disclosed is a semiconductor device that is capable of handling multiple different high-frequency contactless communication modes and that is formed by a multi-chip structure. A first semiconductor chip, which performs interface control of high-frequency contactless communication and data processing of communications data, is mounted on a wiring board; and a second semiconductor chip, which performs another data processing of the communication data, is mounted on the first semiconductor chip. In this case, transmission pads in the first semiconductor chip are arranged at positions farther from a periphery of the chip than those of receiving pads, and the second semiconductor chip is mounted by being biased on the first semiconductor chip so as to keep away the transmission pads.

Semiconductor device and method of manufacturing the same

An onboard control device that is installed at a vehicle acquires land mark information including position information of a landmark which can be recognized on a road in which the vehicle is estimated to travel by a camera, a landmark image for recognition, a recognition evaluation value that represents ease of the recognition successfully performed and so on, and selects a landmark to be a subject for recognition based on the recognition evaluation value included in the landmark information. The onboard control device further evaluates the recognition results of the landmark to be a subject for recognition, and transmits the recognition results to the server with the landmark image recognized by the camera. The server aggregates the recognition evaluation results of the landmark and the recognized images and reflects them in the recognition evaluation values for the landmark information and landmark images to be transmitted to the onboard control device.

Vehicle position estimation system, device, method, and camera device

The present invention provides an object recognition apparatus which, in a vehicle that detects an object present behind (including obliquely behind) the vehicle using a radio wave radar, is able to precisely recognize the position of the object present behind (including obliquely behind) the vehicle during traveling on a curve and a lane change, and a vehicle travel controller using the same. An object recognition apparatus is provided with: an image capturing unit which captures an image of an environment in front of a vehicle; a lane detection unit which detects a lane in front of the vehicle on the basis of the image captured by the image capturing unit; a lane position estimation unit which estimates the position of a lane behind the vehicle on the basis of the lane detected by the lane detection unit and the travel history of the vehicle; a rear object detection unit which detects an object present behind the vehicle; and a relative position calculation unit which calculates the relative position of the object detected by the rear object detection unit with respect to the position of the lane estimated by the lane position estimation unit.

Object recognition apparatus and vehicle travel controller using same

Occurrence of a void is suppressed when mounting semiconductor chips over a wiring substrate via a paste-like adhesive material. A die bonding step is provided which mounts semiconductor chips over a chip-mounting region of the wiring substrate via the adhesive material. The wiring substrate includes a plurality of wirings (first wirings) and dummy wirings (second wirings) formed on an upper surface of a core layer. The chip-mounting region is provided over the first wirings and the second wirings. In addition, the die bonding step includes a step of applying the adhesive material over an adhesive material application region over the chip-mounting region. Each of the second wirings is extended along a direction in which the adhesive material spreads in the die bonding step.

Method of manufacturing semiconductor device

Growing community of inventors

Hitachinaka, Japan

Hiroshi Kuroda