Patents Assigned to Fujitsu Ten Limited
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Publication number: 20170363738Abstract: A radar device derives, plurality of parameters according to a target and target detection distances, based of received signals that are acquired by receiving reflected waves, each of which is a radar transmission wave transmitted toward vicinity of an own vehicle and then reflected from the target existing in the vicinity. The radar device computes, from likelihood models in which first and second already-known correlations are modeled for each of the detection distances, an indicator based on likelihood ratios, which correspond to derived parameters and detection distances, of a stationary vehicle and upper object, in which the first already-known correlations correlate parameters and likelihoods of the stationary vehicle with each other and second already-known correlations correlate the parameters and likelihoods of the upper object with each other. The radar device performs a threshold determination on the computed indicators to determine whether the target is the stationary vehicle or upper object.Type: ApplicationFiled: June 12, 2017Publication date: December 21, 2017Applicant: FUJITSU TEN LIMITEDInventor: Shozo KAINO
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Publication number: 20170363716Abstract: There is provided a radar device. An extracting unit extracts history peak signals according to estimated peak signals, from a difference frequency between a transmission signal and a reception signal obtained by receiving a reflected wave of a transmission wave based on the transmission signal from a target, in a first period and a second period. An estimating unit estimates current peak signals as the estimated peak signals based on extracted previous peak signals. A pairing unit pairs the history peak signal of the first period and the history peak signal of the second period. A re-pairing unit re-pairs the paired history peak signals, based on peak signals existing in a predetermined range including the paired history peak signals. An information generating unit generates information on the target based on a result of the pairing and a result of the re-pairing.Type: ApplicationFiled: April 21, 2017Publication date: December 21, 2017Applicant: FUJITSU TEN LIMITEDInventor: Hisateru ASANUMA
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Publication number: 20170363717Abstract: There is provided a radar device. An estimating unit estimates peak signals corresponding to a target in the latest periods of each of UP and DOWN beat sections of a beat signal on the basis of histories of peak signals corresponding to the target in past periods of the UP and DOWN beat sections. A pairing unit extracts peak signals within predetermined ranges defined with reference to the estimate peak signals on the basis of the histories, and pairs the extracted peak signals. In a case where a distance to the target is equal to or shorter than a predetermined value, the pairing unit extracts peak signals corresponding to the target, from a first range which is a predetermined angular range defined with reference to the estimate peak signals, or a second range which is a predetermined transverse position range defined with reference to the estimate peak signals.Type: ApplicationFiled: May 23, 2017Publication date: December 21, 2017Applicant: FUJITSU TEN LIMITEDInventors: Hiroyuki ISHIMORI, Daisuke NISHIO
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Publication number: 20170363735Abstract: There is provided a radar device. A signal processing unit is configured to: acquire first and second estimate peaks estimated as a first peak in a rising section and a second peak in a falling section; extract first and second history peaks existing in a predetermined range from the first and second estimate peaks. A determining unit is configured to determine that the signal processing unit has erroneously extracted the first peak corresponding to a still object as the first peak corresponding to a moving object, if an accuracy of pairing of the first history peak and a second object peak existing in a predetermined range apart from the first history peak by a predetermined distance is larger than an accuracy of pairing of the first and second history peaks in a situation where a distance between the radar device and the moving object decreases.Type: ApplicationFiled: May 30, 2017Publication date: December 21, 2017Applicant: FUJITSU TEN LIMITEDInventor: Shinya AOKI
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Publication number: 20170363732Abstract: There is provided a radar device that calculates an angle of a target based on a phase difference between reception signals obtained by receiving reflected waves from the target. A transmitting unit alternately transmits first and second transmission waves having different beam patterns. A calculating unit calculates reception levels of the reception signals, and an estimate angle at which the target is estimated to exist. A first determining unit determines a degree of reliability of a level difference between the reception levels, on the basis of a comparison between the level difference with a reference value which is associated with the estimate angle in advance. A second determining unit determines whether the target exists at the estimate angle, on the basis of a determination result and the reception level based on the first transmission wave.Type: ApplicationFiled: May 30, 2017Publication date: December 21, 2017Applicant: FUJITSU TEN LIMITEDInventors: Hiroyuki ISHIMORI, Hiroki ISHIKAWA
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Publication number: 20170356990Abstract: There is provided a radar device. An extracting unit is configured to extract peak signals from a frequency difference between a transmission signal and a reception signal, in a first range of each of a first period and a second period. An estimating unit is configured to estimate a current peak signal on the basis of a previous peak signal extracted by the extracting unit. A first setting unit is configured to set the first range on the basis of the estimation result. A second setting unit is configured to set a second range different from the first range, if the peak signal is extracted in the first range of the second period and the peak signal cannot be extracted in the first range of the first period. A re-extracting unit is configured to extract the peak signal in the second range of the first period.Type: ApplicationFiled: April 24, 2017Publication date: December 14, 2017Applicant: FUJITSU TEN LIMITEDInventor: Hisateru ASANUMA
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Publication number: 20170350975Abstract: There is provided a radar device. A detecting unit is configured to detect a lateral location of a target relative to a vehicle equipped with the radar device, on the basis of reflected waves from the target. A selecting unit is configured to select a predetermined number of detection values from a detection value history including detection values of the lateral location detected by the detecting unit in chronological order. The predetermined number depends on a turning radius of the vehicle. A determining unit is configured to determine a definite value of the lateral location on the basis of the detection values selected by the selecting unit.Type: ApplicationFiled: April 20, 2017Publication date: December 7, 2017Applicant: FUJITSU TEN LIMITEDInventor: Hisateru ASANUMA
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Publication number: 20170349157Abstract: When an output limitation value of a battery is equal to or less than a threshold, an electronic control unit determines that basic torque is able to be output from a second motor to a drive shaft. Then, the electronic control unit sets a predetermined value as a target motoring rotation speed for ending motoring of an engine by a first motor. When the output limitation value is greater than the threshold, the electronic control unit determines that the basic torque is unable to be output from the second motor to the drive shaft at the time of starting the engine, and sets a value smaller than the predetermined value as the target motoring rotation speed.Type: ApplicationFiled: May 30, 2017Publication date: December 7, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJITSU TEN LIMITEDInventors: Koji HOKOI, Koji YOSHIHARA, Kotaro INAOKA, Koji YAMAMOTO
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Publication number: 20170349126Abstract: A control device for an occupant protection device includes a power supply unit and a controller. The power supply unit performs supply of power to a squib for activating the occupant protection device. The controller causes the power supply unit to perform the supply of power at a first timing when a first condition is satisfied and causes the power supply unit to perform the supply of power at a second timing when a second condition is satisfied. At least one of the controller and the power supply unit prohibits, for a predetermined time after performing the supply of power at an earlier one timing of the first and second timings, the supply of power at another timing when the first and second conditions are satisfied.Type: ApplicationFiled: March 27, 2017Publication date: December 7, 2017Applicant: FUJITSU TEN LIMITEDInventor: Terumi KAWAHARA
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Patent number: 9832893Abstract: A first roof extends over and covers an area above an aperture through which an input connector is accessible, so as to receive water drops flowing down along a side surface of a case. A first reinforcement reinforces a fixture by which the case is fixed to a fixed surface. The first roof and the first reinforcement are a single piece of material. Thus, since the first roof and the first reinforcement are the single piece of material, if the first roof is provided to the case, there is no need to form the first roof and the first reinforcement separately. Therefore, it is possible to prevent generation of additional mold production cost and material cost for the first roof.Type: GrantFiled: August 11, 2016Date of Patent: November 28, 2017Assignee: FUJITSU TEN LIMITEDInventors: Shimpei Yamada, Takashi Ogitani, Akira Nishikawa
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Patent number: 9827906Abstract: An image processing apparatus that processes an image includes: an image acquisition portion that acquires a captured image from an imaging apparatus which captures an image of a vicinity of a vehicle; and an image generator that generates a display image in which a support image for supporting driving is superimposed on the acquired captured image captured by the imaging apparatus, the image generator being configured to (i) make a determination as to whether the vehicle is in a stopped state or a moving state, and (ii) select a type of the support image to be superimposed on the acquired captured image in the display image based on the determination as to whether the vehicle is in the stopped state or the moving state.Type: GrantFiled: July 7, 2015Date of Patent: November 28, 2017Assignee: FUJITSU TEN LIMITEDInventors: Yuuki Matsumoto, Atsushi Mino, Naoshi Kakita
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Publication number: 20170334356Abstract: An image generation apparatus includes an image processor and a detector. The image processor generates a composite image viewed from at least one virtual viewpoint, and outputs the generated composite image to a display. The detector detects an indication of a driver intention to drive the host vehicle to a right or to a left relative to a travelling direction of the host vehicle. The image processor generates the composite image viewed from a virtual viewpoint located in front of the host vehicle in the travelling direction, the composite image showing a lateral surface of the host vehicle on a side corresponding to the detected indication of the driver intention. Thus, it is possible to make it easier to check a situation at a time of a right turn, a left turn, or a travelling direction change.Type: ApplicationFiled: April 20, 2017Publication date: November 23, 2017Applicant: FUJITSU TEN LIMITEDInventor: Atsushi FUJITA
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Patent number: 9826620Abstract: A high frequency generating device used in a plasma ignition apparatus according to an embodiment includes a high frequency output unit, an output control unit, a current detecting unit, and an abnormality detecting unit. The high frequency output unit outputs a high frequency. The output control unit shifts a state of the high frequency output unit from a non-output state to an output-ready state of the high frequency. The current detecting unit detects a current that flows through a power-supply path to the high frequency output unit. The abnormality detecting unit detects output abnormality of the high frequency in the non-output state when a value of a current detected by the current detecting unit in the non-output state exceeds a non-output threshold.Type: GrantFiled: July 12, 2016Date of Patent: November 21, 2017Assignee: FUJITSU TEN LIMITEDInventors: Masashi Shibayama, Shoko Yamoto, Jyunya Tokinaga, Yusuke Masuda, Saori Aiba, Akio Okahara
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Patent number: 9821935Abstract: In a state where an engaging tab and a tab receiver are engaged with each other, the engaging tab is elastically deformed and thus a first end of a second portion applies a force to the tab receiver, the force applied toward a first side of a case.Type: GrantFiled: February 24, 2016Date of Patent: November 21, 2017Assignee: FUJITSU TEN LIMITEDInventors: Toshihiko Fujii, Yasuaki Takeda
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Patent number: 9816446Abstract: A knock determination apparatus for an internal combustion engine calculates a knock intensity based on an output signal of an in-cylinder pressure sensor in a gate range for knock determination. When the calculated knock intensity is larger than a knock determination threshold value, the knock determination apparatus determines that knock has occurred. Further, the knock determination apparatus calculates an integrated intensity which is an integrated value of knock intensities that are equal to or larger than a knock intensity at a point of 97% or more in a target knock level among knock intensities that are calculated at the respective cycles during continuous N cycles in the same cylinder. Furthermore, the knock determination apparatus corrects a knock determination threshold value so that the difference between the calculated integrated intensity and a target integrated intensity becomes small.Type: GrantFiled: November 2, 2015Date of Patent: November 14, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, FUJITSU TEN LIMITEDInventors: Yoshihiro Sakayanagi, Sumiaki Hashimoto
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Patent number: 9815478Abstract: A driving assistance system includes a history storage unit, a behavior detecting unit, a state determining unit, and a notifying unit. The history storage unit stores a behavior history which is a past behavior history of a driver. The behavior detecting unit detects a current behavior of the driver. The state determining unit determines an unsafe state by comparing the transition of the behavior detected by the behavior detecting unit with the behavior history of the driver corresponding to a current driving path. If the state determining unit determines the unsafe state, the notifying unit gives notification to the driver.Type: GrantFiled: November 6, 2015Date of Patent: November 14, 2017Assignee: FUJITSU TEN LIMITEDInventors: Masashi Tsuyunashi, Toshitaka Yamato, Shogo Tanaka, Yoshikazu Hashimoto, Takashi Ohta
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Patent number: 9811741Abstract: An object detection circuit detects an object moving in a periphery of a vehicle by use of a shot image. A state judgment part changes a parameter relevant to a detection function so as to change whether the detection function of the object detection circuit is to be enabled or disabled while the object detection circuit is kept activated. Thus, even when the detection function of the object detection circuit is disabled, the object detection circuit is kept activated. Therefore, since there is no need to restart the object detection circuit in order to enable the detection function of the object detection circuit, a detection result by the object detection circuit is promptly obtained.Type: GrantFiled: January 15, 2014Date of Patent: November 7, 2017Assignee: FUJITSU TEN LIMITEDInventor: Tetsuo Yamamoto
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Publication number: 20170307745Abstract: There is provided a radar device. A transmission unit includes a transmission antenna for transmitting a signal of a first frequency and a signal of a second frequency. A reception unit includes a first receiving antenna and a second receiving antenna for receiving a first signal obtained by bouncing the signal of the first frequency off a target, and a second signal obtained by bouncing the signal of the second frequency off the target. A control unit determines folding of a first phase difference, based on the first phase difference between the first signal received by the first receiving antenna and the first signal received by the second receiving antenna, a second phase difference between the second signal received by the first receiving antenna and the second signal received by the second receiving antenna, and a difference between the first phase difference and the second phase difference.Type: ApplicationFiled: March 29, 2017Publication date: October 26, 2017Applicant: FUJITSU TEN LIMITEDInventors: Isao MATSUI, Kenji OKA, Yasuhiro KURONO
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Publication number: 20170305464Abstract: A parking assist device for assisting parking of a vehicle, includes: a detecting unit that detects whether there is any obstacle and detects available parking areas for the vehicle, on the basis of a taken image of the surrounding area of the vehicle; and a selecting unit that selects an available parking area where the vehicle is parked with low risk of contact with the obstacle, from the detected available parking areas, on the basis of whether there is the obstacle.Type: ApplicationFiled: July 10, 2017Publication date: October 26, 2017Applicant: FUJITSU TEN LIMITEDInventors: Yasushi TANI, Tetsuya OTOSHI
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Patent number: 9797361Abstract: A power supply device for a vehicle which is used in a vehicle, includes: a first switch unit that is provided between a power generator which is driven by an internal combustion engine of the vehicle and a secondary battery which is connected to the power generator and supplies electric power to a starting device for starting the internal combustion engine; a second switch unit that is provided between the power generator and a capacitor which accumulates electric power supplied by the power generator; and a control unit that controls the connection state of the first switch unit and the connection state of the second switch unit.Type: GrantFiled: November 12, 2015Date of Patent: October 24, 2017Assignee: FUJITSU TEN LIMITEDInventor: Yoshinori Shibachi