Patents by Inventor Hiroyuki Kishita
Hiroyuki Kishita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230401874Abstract: A vehicle monitoring technique includes detecting a person around a vehicle based on point cloud data acquired from a sensor that emits search waves, and determining whether the detected person has authentication information valid for an action against the vehicle.Type: ApplicationFiled: June 7, 2023Publication date: December 14, 2023Inventors: Hiroyuki KISHITA, Yasuhiro NAKAMURA, Takashi UEFUJI
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LEDGER MANAGEMENT DEVICE, LEDGER MANAGEMENT SYSTEM, AND VEHICLE-MOUNTED INFORMATION PROVISION DEVICE
Publication number: 20200151971Abstract: A ledger management system includes multiple ledger management devices communicably connected to each other. The ledger management devices have a same distributed ledger. Each ledger management device includes the distributed ledger, an agreement determination unit, and a ledger storage unit. The distributed ledger stores ledger information, including specific information specific to a previous ledger information and present vehicle information obtained from a vehicle, that is generated by one of the ledger management devices. The agreement determination unit determines whether the ledger information generated by the one of the ledger management devices satisfies an agreement rule. The ledger storage unit stores the ledger information in the distributed ledger when the ledger information satisfies the agreement rule, and does not store the ledger information in the distributed ledger when the ledger information does not satisfy the agreement rule.Type: ApplicationFiled: January 10, 2020Publication date: May 14, 2020Inventors: Tomoya OGAWA, Hiroyuki KISHITA, Takashi UEFUJI, Tsuneo NAKATA -
Publication number: 20190026829Abstract: In a ledger execution unit of a distributed ledger system, a node communicates with a provider terminal to thereby execute a transaction, and a node communicates with a user terminal to thereby execute a transaction. A storage unit is configured in such a way that at least one of the nodes generates a new distributed information item indicative of a record of the transactions, and each of the nodes stores the new distributed information item.Type: ApplicationFiled: July 23, 2018Publication date: January 24, 2019Inventors: Tsuneo NAKATA, Takashi UEFUJI, Tomoya OGAWA, Hiroyuki KISHITA
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Patent number: 9526448Abstract: According to the present disclosure, a state estimation device estimating a state of a monitoring target based on an involuntary eye movement of an eyeball of the monitoring target is provided. The state estimation device in the present disclosure includes a microsaccade information acquisition portion obtaining microsaccade information that includes a state of variation of a gaze angle when a microsaccade of the involuntary eye movement occurs, and a state estimation portion estimating the state of the monitoring target based on the microsaccade information.Type: GrantFiled: October 21, 2014Date of Patent: December 27, 2016Assignee: DENSO CORPORATIONInventors: Minori Yamataka, Takeshi Enya, Hiroyuki Kishita
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Publication number: 20150173665Abstract: According to the present disclosure, a state estimation device estimating a state of a monitoring target based on an involuntary eye movement of an eyeball of the monitoring target is provided. The state estimation device in the present disclosure includes a microsaccade information acquisition portion obtaining microsaccade information that includes a state of variation of a gaze angle when a microsaccade of the involuntary eye movement occurs, and a state estimation portion estimating the state of the monitoring target based on the microsaccade information.Type: ApplicationFiled: October 21, 2014Publication date: June 25, 2015Inventors: Minori YAMATAKA, Takeshi ENYA, Hiroyuki KISHITA
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Patent number: 8009128Abstract: A passive matrix type display device includes: a display unit having a display area; first electrodes on the area for switching between a conductive state and a non-conductive state; second electrodes on the area; a driving current source for supplying a driving current to the second electrodes; light-emitting elements at an intersection between the first and second electrodes; a first circuit for controlling a part of first electrodes to the conductive state and for scanning the first electrodes; a second circuit for deciding a part of second electrodes corresponding to a part of light-emitting elements emitting a light; light-emission adjustment elements coupled with the second electrodes for branching an adjustment current from the driving current; and a light-emission adjustment controller for controlling the light from each light-emitting element by controlling the adjustment current.Type: GrantFiled: July 19, 2007Date of Patent: August 30, 2011Assignee: DENSO CORPORATIONInventors: Takashi Hanaki, Hiroyuki Kishita, Tetsuya Katoh
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Publication number: 20080048952Abstract: A passive matrix type display device includes: a display unit having a display area; first electrodes on the area for switching between a conductive state and a non-conductive state; second electrodes on the area; a driving current source for supplying a driving current to the second electrodes; light-emitting elements at an intersection between the first and second electrodes; a first circuit for controlling a part of first electrodes to the conductive state and for scanning the first electrodes; a second circuit for deciding a part of second electrodes corresponding to a part of light-emitting elements emitting a light; light-emission adjustment elements coupled with the second electrodes for branching an adjustment current from the driving current; and a light-emission adjustment controller for controlling the light from each light-emitting element by controlling the adjustment current.Type: ApplicationFiled: July 19, 2007Publication date: February 28, 2008Applicant: DENSO CORPORATIONInventors: Takashi Hanaki, Hiroyuki Kishita, Tetsuya Katoh
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Publication number: 20040061661Abstract: The present invention relates to a large-sized display apparatus and a large-sized display unit, which reduces the occurrence probability of a failure of a unit of one array causing failures of units following the failed unit of the same array as well as does not require any laborious work or constructions of setting address values in the unit control portions.Type: ApplicationFiled: June 20, 2003Publication date: April 1, 2004Inventors: Hiroyuki Kishita, Norihiko Okazaki
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Patent number: 6593919Abstract: A display panel driving system, constituted in such a manner that the occurrence of a display irregularity on the display panel can be suppressed without regard to the characteristics or the driving condition of the display panel, is disclosed. An up-counter counts the number of the picture elements which emit light when the EL display panel is horizontally scanned, and the counting result thus obtained is outputted as an addressing signal to an EEPROM. Stored in the EEPROM are data maps MAP, MAP in which pulse width data are written at a plurality of addresses corresponding to the counting ranges of the up-counter. A signal generation means outputs a blank signal BLK which determines the pulse width of a data voltage on the basis of the pulse width data addressed by the up-counter.Type: GrantFiled: September 8, 2000Date of Patent: July 15, 2003Assignee: Denso CorporationInventors: Hiroyuki Kishita, Muneaki Matsumoto, Masahiko Osada
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Patent number: 6317107Abstract: An EL display in which expansion of dielectric breakdown occurring at any one of EL elements is inhibited. Scan electrodes are arranged to receive an offset voltage Vm at those instances other than during application of a scanning voltage thereto in a positive field, while a predetermined voltage is applied to data electrodes to prevent voltage from being applied to EL elements immediately after application of the scan voltage. Accordingly, even where dielectric breakdown occurs at any one of the EL elements due to application of a light emission driving pulse voltage, it is possible to inhibit current flow between the scan electrodes and the data electrodes to thereby inhibit further subsequent dielectric breakdown.Type: GrantFiled: March 25, 1999Date of Patent: November 13, 2001Assignee: Denso CorporationInventors: Toshinori Ninoyu, Kiyoshi Saeki, Hiroyuki Kishita, Tomoya Uchida, Hideki Saito, Masahiko Osada
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Patent number: 6271812Abstract: An Electroluminescent display device is designed not to display residual images due to electric charges stored in electroluminescent pixels or to make them invisible, when the device is turned on again. The stored charges are eliminated at the time a normal display on the panel is turned off at an end of an operation, by scanning pixels at least one time while giving a non-activating data voltage thereto. Alternatively, upon turning on the panel, pixels which were activated in a previous use are all lit at least one time, thereby making the residual images invisible. Thus, the residual images stored in a previous operation are not shown or made invisible when the electroluminescent display device is turned on next time.Type: GrantFiled: September 8, 1998Date of Patent: August 7, 2001Assignee: Denso CorporationInventors: Masahiko Osada, Ken Nishioka, Hiroyuki Kishita, Hideki Saito, Toshinori Ninoyu
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Patent number: 6175193Abstract: A flat display panel having electroluminescent layer and scanning and data electrodes is driven by driving circuits connected to the respective electrodes. Scanning voltages are sequentially supplied to the scanning electrodes one by one, and data voltages are supplied to the data electrodes in synchronism with the scanning voltages, thereby selectively imposing composite voltages on pixels formed at each intersection of the scanning and data electrodes. The pixels on one scanning electrode that is already scanned are charged to a level of a data modulation voltage to prevent a harmful and useless turnaround current from flowing into the scanned pixels when other scanning electrodes are scanned. The pixels on other scanning electrodes that are not yet scanned may be charged to the modulation voltage level at the same time the scanned pixels are charged. Since the turnaround current is thus eliminated, uneven brightness among scanning electrodes otherwise appearing on the display panel is suppressed.Type: GrantFiled: March 30, 2000Date of Patent: January 16, 2001Assignee: Denso CorporationInventors: Hiroyuki Kishita, Masahiko Osada, Koji Ogusu, Takashi Hanaki, Naoki Matsumoto
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Patent number: 6121943Abstract: To reduce the influence of generation of heat at scan driver ICs during the application of a scan signal with reduced time of charge and discharge and to eliminate the problem of a rush current, in an EL display where scan driver Ics sequentially apply a scan signal to a plurality of scan electrodes and data driver IC applies a data signal to data electrodes to selectively cause EL elements to emit light responsive to the scan signal and data signal, constant current control circuits are provided to control charge and discharge currents at constant currents during the application of the scan signal to the scan electrodes by the scan driver ICs.Type: GrantFiled: May 13, 1997Date of Patent: September 19, 2000Assignee: DENSO CorporationInventors: Ken Nishioka, Hiroyuki Kishita, Masahiko Osada
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Patent number: 6066916Abstract: An electroluminescent matrix display device which displays images with uniform brightness on its panel having connecting terminals for both scanning and data electrodes formed on one side of the panel is disclosed. Scanning electrodes requiring larger current than data electrodes are formed vertically on the panel so that they can be connected directly to the terminals formed on the bottom side of the panel, and data electrodes are formed horizontally to be connected to the terminals at the bottom side through wiring leads. Since the wiring leads have different lengths and resistances from one another, the resistances are compensated or adjusted by changing widths of the wiring leads or adding compensating resistors thereto so that the wiring resistances become uniform or differences thereof are reduced. Running directions of the scanning and data electrodes may be exchanged.Type: GrantFiled: August 19, 1997Date of Patent: May 23, 2000Assignee: Denso CorporationInventors: Masahiko Osada, Hiroyuki Kishita, Yutaka Hattori
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Patent number: 6064158Abstract: A scan driver IC for an EL element in an EL display device supplies, in a positive field, a positive polarity scan voltage and an offset voltage which is higher than ground to scan side driver ICs from voltage supply circuits, and the scan side driver ICs set voltage of scan electrodes to be the offset voltage in the positive field, together with outputting the positive polarity scan voltage to the scan electrodes during electroluminescence timing. Consequently, a voltage of Vr-Vm is applied to the scan side driver ICs, and so the breakdown voltage can be lowered by an amount corresponding to the offset voltage Vm. Circuits for providing such voltages, for providing alternating current drive voltages, and for reducing power consumption of the drive circuits are also disclosed.Type: GrantFiled: December 3, 1998Date of Patent: May 16, 2000Assignee: Denso CorporationInventors: Hiroyuki Kishita, Masahiko Osada, Hiroaki Himi
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Patent number: 5973456Abstract: To eliminate uneven luminance between columns, and along with this, to eliminate uneven luminance also among EL elements in several columns in an EL display device for performing matrix display, in a matrix type EL display device in which a scan voltage is sequentially applied to scan electrodes and EL elements are caused to electroluminesce by this scan voltage and a data voltage, a pulse width of the scan voltage is kept uniform, and together with this, a charging period for the EL elements is varied in accordance with a number of light emitting pixels in a line scanned and driven to eliminate uneven luminance between columns. Additionally, a holding period for holding a charging voltage is provided to alleviate differences in terminal voltages among the EL elements due to wiring resistance delay and to eliminate uneven luminance among the EL elements.Type: GrantFiled: January 28, 1997Date of Patent: October 26, 1999Assignee: Denso CorporationInventors: Masahiko Osada, Ken Nishioka, Hiroyuki Kishita, Tadashi Hattori
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Patent number: 5847516Abstract: A scan driver IC for an EL element in an EL display device supplies, in a positive field, a positive polarity scan voltage and an offset voltage which is higher than ground to scan side driver ICs from voltage supply circuits, and the scan side driver ICs set voltage of scan electrodes to be the offset voltage in the positive field, together with outputting the positive polarity scan voltage to the scan electrodes during electroluminescence timing. Consequently, a voltage of Vr-Vm is applied to the scan side driver ICs, and so the breakdown voltage can be lowered by an amount corresponding to the offset voltage Vm. Circuits for providing such voltages, for providing alternating current drive voltages, and for reducing power consumption of the drive circuits are also disclosed.Type: GrantFiled: July 3, 1996Date of Patent: December 8, 1998Assignee: Nippondenso Co., Ltd.Inventors: Hiroyuki Kishita, Masahiko Osada, Hiroaki Himi, Nobuei Ito, Tadashi Hattori, Hideki Saito