Patents by Inventor Wataru Nagaura

Wataru Nagaura 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).

  • Patent number: 9274511
    Abstract: In the present invention, on the basis of the results of determining whether or not a constituent element of a vehicle control device is malfunctioning, the malfunction determination logic for determining whether or not the vehicle control device as a whole is malfunctioning is caused to be easily reusable. This vehicle control device determines the level of functional malfunction of the vehicle control device on the basis of what combination of hardware configuring the vehicle control device is malfunctioning, and executes a failsafe function that is in accordance with the level of functional malfunction (see FIG. 5).
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 1, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tsunamichi Tsukidate, Tasuku Ishigooka, Fumio Narisawa, Wataru Nagaura, Hidetoshi Ogura
  • Publication number: 20140229796
    Abstract: An electronic control apparatus having a highly reliable memory capable of holding down the memory use quantity is provided. In the electronic control apparatus according to the present invention, data after error correction is retained in a second storage area different from a first storage area where a data error is detected, data on the second storage area is used for control processing and data on the first storage area is also used for control processing continuously.
    Type: Application
    Filed: October 3, 2012
    Publication date: August 14, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kohei Sakurai, Fumio Narisawa, Masahiro Matsubara, Wataru Nagaura
  • Publication number: 20140172227
    Abstract: In the present invention, on the basis of the results of determining whether or not a constituent element of a vehicle control device is malfunctioning, the malfunction determination logic for determining whether or not the vehicle control device as a whole is malfunctioning is caused to be easily reusable. This vehicle control device determines the level of functional malfunction of the vehicle control device on the basis of what combination of hardware configuring the vehicle control device is malfunctioning, and executes a failsafe function that is in accordance with the level of functional malfunction (see FIG. 5).
    Type: Application
    Filed: July 31, 2012
    Publication date: June 19, 2014
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tsunamichi Tsukidate, Tasuku Ishigooka, Fumio Narisawa, Wataru Nagaura, Hidetoshi Ogura
  • Publication number: 20140107863
    Abstract: Provided is a technology for performing communications between ECUs with different required safety levels while satisfying the required safety levels of the ECUs. An automotive control unit according to the present invention modifies the error detection method used for data transmission in accordance with the required degree of accuracy of operation of the receiving-end unit (as per FIG. 2).
    Type: Application
    Filed: June 4, 2012
    Publication date: April 17, 2014
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tasuku Ishigooka, Fumio Narisawa, Tsunamichi Tsukidate, Wataru Nagaura, Hidetoshi Ogura
  • Patent number: 8433832
    Abstract: A control equipment with a built-in communication apparatus is provided which realizes a delay required for communication without a software intervention while at the same time reducing a load of the communication processing. The control equipment with a communication apparatus includes: a communication device to communicate with a plurality of destinations; and a decision device to determine a mode requiring a reception completion interrupt and a mode not requiring the reception completion interrupt. If the decision device decides that the reception completion interrupt is not necessary, the communication device transmits data to one or more destinations and also virtually transmits data to a second destination different from the first intended destination.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Kenji Ohta, Kouichi Sato
  • Publication number: 20120307836
    Abstract: An object of the present invention is to provide a technique making it possible to transmit and receive communication data among multiple types of networks in an in-vehicle network having the networks therein. An in-vehicle-data relaying device according to the present invention relays communication data to a different in-vehicle-data relaying device when the transmission destination of the communication data is a network not directly connected to the in-vehicle-data relaying device.
    Type: Application
    Filed: August 11, 2010
    Publication date: December 6, 2012
    Inventors: Tasuku Ishigooka, Fumio Narisawa, Junji Miyake, Wataru Nagaura
  • Publication number: 20110160951
    Abstract: The automotive control system includes a first subsystem, a second subsystem and an adaptive cruise control system. The first and second subsystems and the adaptive cruise control system are interconnected through their gateway ECUs and the FlexRay. Each of the gateway ECUs has a time tagging unit that tags the received data with time information of their reception.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 30, 2011
    Applicant: Hitachi, LTD.
    Inventors: Tasuku Ishigooka, Fumio Narisawa, Junji Miyake, Wataru Nagaura
  • Publication number: 20110047308
    Abstract: A control equipment with a built-in communication apparatus is provided which realizes a delay required for communication without a software intervention while at the same time reducing a load of the communication processing. The control equipment with a communication apparatus includes: a communication device to communicate with a plurality of destinations; and a decision device to determine a mode requiring a reception completion interrupt and a mode not requiring the reception completion interrupt. If the decision device decides that the reception completion interrupt is not necessary, the communication device transmits data to one or more destinations and also virtually transmits data to a second destination different from the first intended destination.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Wataru NAGAURA, Kenji OHTA, Kouichi SATO
  • Patent number: 7849236
    Abstract: A control equipment with a built-in communication apparatus is provided which realizes a delay required for communication without a software intervention while at the same time reducing a load of the communication processing. The control equipment with a communication apparatus includes: a communication device to communicate with a plurality of destinations; and a decision device to determine a mode requiring a reception completion interrupt and a mode not requiring the reception completion interrupt. If the decision device decides that the reception completion interrupt is not necessary, the communication device transmits data to one or more destinations and also virtually transmits data to a second destination different from the first intended destination.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: December 7, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Kenji Ohta, Kouichi Sato
  • Publication number: 20090070023
    Abstract: Upon initiation of a initiation processing by a task management, reference is made to a initiation table for processing of initiation, and processing of measurement is performed by an input measurement processing in response to the preset timing. Then the input value is stored in a input value storage buffer. When an application program is acquired, an input value acquisition processing is initiated, the input value is from the buffer, and is transferred to the application program. When the application program is set, an output value updating is initiated, the output value having been transferred from the application program is updated, and the result is stored in an output value storage buffer. Further, output processing means is initiated in response to the timing preset on the initiation table and an output value is outputted from the output value storage buffer.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Wataru NAGAURA, Junji Miyake, Hiroaki Komatsu, Toru Irie
  • Publication number: 20080282118
    Abstract: The highly reliable distributed system is composed of a communication protocol processing unit which comprises a mailbox for storing a communication message, and executes communication protocol processing between data of an application program and a network controller using the network controller performing network communication of the message in the mailbox; an error detection coding unit; an error detection decoding unit which reconverts data converted from communication data by the error detection coding unit to the original data, and detects that the content of the data is damaged if it is damaged; and a data comparing unit for checking whether or not two kinds of data agree with each other.
    Type: Application
    Filed: March 21, 2008
    Publication date: November 13, 2008
    Applicant: HITACHI, LTD.
    Inventors: Wataru NAGAURA, Takanori Yokoyama, Shoji Suzuki, Satoru Kuragaki, Takaaki Imai
  • Patent number: 7356739
    Abstract: The highly reliable distributed system is composed of a communication protocol processing unit which comprises a mailbox for storing a communication message, and executes communication protocol processing between data of an application program and a network controller using the network controller performing network communication of the message in the mailbox; an error detection coding unit; an error detection decoding unit which reconverts data converted from communication data by the error detection coding unit to the original data, and detects that the content of the data is damaged if it is damaged; and a data comparing unit for checking whether or not two kinds of data agree with each other.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: April 8, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Takanori Yokoyama, Shoji Suzuki, Satoru Kuragaki, Takaaki Imai
  • Publication number: 20080046164
    Abstract: Upon initiation of a initiation processing by a task management, reference is made to a initiation table for processing of initiation, and processing of measurement is performed by an input measurement processing in response to the preset timing. Then the input value is stored in a input value storage buffer. When an application program is acquired, an input value acquisition processing is initiated, the input value is from the buffer, and is transferred to the application program. When the application program is set, an output value updating is initiated, the output value having been transferred from the application program is updated, and the result is stored in an output value storage buffer. Further, output processing means is initiated in response to the timing preset on the initiation table and an output value is outputted from the output value storage buffer.
    Type: Application
    Filed: October 11, 2007
    Publication date: February 21, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Junji Miyake, Hiroaki Komatsu, Toru Irie
  • Publication number: 20080016257
    Abstract: A control equipment with a built-in communication apparatus is provided which realizes a delay required for communication without a software intervention while at the same time reducing a load of the communication processing. The control equipment with a communication apparatus comprises: a communication means to communicate with a plurality of destinations; and a decision means to determine a mode requiring a reception completion interrupt and a mode not requiring the reception completion interrupt; wherein if the decision means decides that the reception completion interrupt is not necessary, the communication means transmits data to one or more destinations and also virtually transmits data to a second destination different from the first intended destination.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 17, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Wataru NAGAURA, Kenji Ohta, Kouichi Satou
  • Patent number: 7299124
    Abstract: Upon initiation of a initiation processing by a task management, reference is made to a initiation table for processing of initiation, and processing of measurement is performed by an input measurement processing in response to the preset timing. Then the input value is stored in a input value storage buffer. When an application program is acquired, an input value acquisition processing is initiated, the input value is from the buffer, and is transferred to the application program. When the application program is set, an output value updating is initiated, the output value having been transferred from the application program is updated, and the result is stored in an output value storage buffer. Further, output processing means is initiated in response to the timing preset on the initiation table and an output value is outputted from the output value storage buffer.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: November 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Junji Miyake, Hiroaki Komatsu, Toru Irie
  • Patent number: 7228372
    Abstract: A data communication system includes a master device, a plurality of slave devices, at least either a data transmission bus which connects the master device to a plurality of slave devices to transfer data from the master device to the slave devices in synchronism with a synchronous clock signal or a data reception bus over which the master device receives data from the slave devices in synchronism with a synchronous clock signal, and Chip Select signal lines which one-to-one connect the master device to the slave devices. The data communication system also includes communication drivers for setting a physical protocol of each slave device and a communication manager to arbitrate serial communications between the master device and the slave devices. The communication manager arbitrates serial communications to slave devices by their proper physical protocols. Communication protocols such as baud rates, clock polarities, and clock phases are switched by asserted Chip Select signal lines.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: June 5, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kentaro Yoshimura, Wataru Nagaura, Takanori Yokoyama, Nobuyasu Kanekawa
  • Publication number: 20070043499
    Abstract: Upon initiation of a initiation processing by a task management, reference is made to a initiation table for processing of initiation, and processing of measurement is performed by an input measurement processing in response to the preset timing. Then the input value is stored in a input value storage buffer. When an application program is acquired, an input value acquisition processing is initiated, the input value is from the buffer, and is transferred to the application program. When the application program is set, an output value updating is initiated, the output value having been transferred from the application program is updated, and the result is stored in an output value storage buffer. Further, output processing means is initiated in response to the timing preset on the initiation table and an output value is outputted from the output value storage buffer.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 22, 2007
    Applicant: Hitachi, Ltd.,
    Inventors: Wataru Nagaura, Junji Miyake, Hiroaki Komatsu, Toru Irie
  • Publication number: 20060161820
    Abstract: The highly reliable distributed system is composed of a communication protocol processing unit which comprises a mailbox for storing a communication message, and executes communication protocol processing between data of an application program and a network controller using the network controller performing network communication of the message in the mailbox; an error detection coding unit; an error detection decoding unit which reconverts data converted from communication data by the error detection coding unit to the original data, and detects that the content of the data is damaged if it is damaged; and a data comparing unit for checking whether or not two kinds of data agree with each other.
    Type: Application
    Filed: March 21, 2006
    Publication date: July 20, 2006
    Inventors: Wataru Nagaura, Takanori Yokoyama, Shoji Suzuki, Satoru Kuragaki, Takaaki Imai
  • Patent number: 7036050
    Abstract: The highly reliable distributed system is composed of a communication protocol processing unit which comprises a mailbox for storing a communication message, and executes communication protocol processing between data of an application program and a network controller using the network controller performing network communication of the message in the mailbox; an error detection coding unit; an error detection decoding unit which reconverts data converted from communication data by the error detection coding unit to the original data, and detects that the content of the data is damaged if it is damaged; and a data comparing unit for checking whether or not two kinds of data agree with each other.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: April 25, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Nagaura, Takanori Yokoyama, Shoji Suzuki, Satoru Kuragaki, Takaaki Imai
  • Publication number: 20050267953
    Abstract: The present invention provides a real-time distributed system which can improve productivity of software by suppressing a volume of software change incident to change in the system configuration, and can send or receive a message requested to be sent or received corresponding to its priority. A middleware is contained in each of control units. Services of the middleware in each of the control units are as follows, that is, 1. tasks T1, . . . , Tn for executing starting AP modules and calling RT communication processing according to starting order information and the like in AP configuration information, and 2. RT communication service for executing sending and receiving messages Msgl, . . . , Msgn between the AP modules corresponding to the calling. The AP configuration information and the messages are generated by an information processor based on user defined information and transmitted to each of the units by on-line or off-line.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 1, 2005
    Applicant: HITACHI, LTD.
    Inventors: Shoji Suzuki, Takanori Yokoyama, Wataru Nagaura, Takaaki Imai