Patents by Inventor Sadaki Nakano

Sadaki Nakano 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).

  • Publication number: 20210142074
    Abstract: A technique facilitates selecting and designating an arbitrary one of a plurality of aerial lines. The aerial line extraction system, includes: an area-of-interest cropping unit that crops a region where an aerial line is assumed to exist as an area of interest by setting a support of the aerial line as a reference from a three-dimensional point cloud data; an element segmenting unit that segments the area of interest into a plurality of subdivided areas, obtains a histogram by counting three-dimensional point clouds existing in each of the subdivided areas, and obtains a segmentation plane of the area of interest on the basis of the histogram; and an element display unit that segments the area of interest into a plurality of segmented areas by the segmentation plane and displays the three-dimensional point clouds included in each of the segmented areas in a distinguishable manner.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 13, 2021
    Applicant: HITACHI SOLUTIONS, LTD.
    Inventors: Sadaki NAKANO, Nobutaka KIMURA, Kishiko MARUYAMA, Nobuhiro CHIHARA
  • Publication number: 20210103727
    Abstract: Provided is an aerial line extraction system including: an area-of-interest cropping unit that crops a region where a point cloud data of aerial lines is assumed to exist as an area of interest by setting coordinates of utility poles as a reference from a three-dimensional point cloud data of a three-dimensional shape that includes the aerial lines and trees installed in the air via the utility poles; an aerial line candidate extraction unit that extracts a candidate point cloud data of the aerial lines from the three-dimensional point cloud data in the area of interest; and an aerial line model estimation unit that estimates a model of the aerial lines on the basis of the extracted candidate point cloud data of the aerial lines.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 8, 2021
    Applicant: HITACHI SOLUTIONS, LTD.
    Inventors: Kishiko MARUYAMA, Nobutaka KIMURA, Sadaki Nakano
  • Patent number: 9270518
    Abstract: Disclosed is a computer system provided with a plurality of sensors provided in a plurality of devices to observe a predetermined amount, and a server for examining the physical amount transmitted from the sensors, wherein the plurality of devices are classified into a first device group and a plurality of second device groups, a plurality of second examination rules indicating the examination methods of the physical amount are set in the plurality of second device groups, the server calculates the similarity between the first device group and each of the second device groups, and, on the basis of the calculated similarity, a first examination rule to be set in the first device group is extracted from the plurality of second examination rules set in the plurality of second device groups.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: February 23, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Keiro Muro, Sadaki Nakano
  • Patent number: 8898189
    Abstract: In a system manages a plurality of pieces of sensor information in a plant, or the like, it can be reducing an amount of data stored in a database and easily a processing for searching a place of an anomaly and an anomaly cause. A database management method for use in a computer for managing a database, the database management method including: a step of analyzing a query; a step of generating a first inquiry for searching the database for compressed data; a step of generating a second inquiry for executing a search of time-series data; a step of extracting given data from the obtained time-series data, based on a response result of the second inquiry; and a step of generating an output result by extracting data to be output to a client computer from the given data.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: November 25, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Sadaki Nakano, Keiro Muro, Shinji Fujiwara
  • Publication number: 20130205014
    Abstract: Disclosed is a computer system provided with a plurality of sensors provided in a plurality of devices to observe a predetermined amount, and a server for examining the physical amount transmitted from the sensors, wherein the plurality of devices are classified into a first device group and a plurality of second device groups, a plurality of second examination rules indicating the examination methods of the physical amount are set in the plurality of second device groups, the server calculates the similarity between the first device group and each of the second device groups, and, on the basis of the calculated similarity, a first examination rule to be set in the first device group is extracted from the plurality of second examination rules set in the plurality of second device groups.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 8, 2013
    Inventors: Keiro Muro, Sadaki Nakano
  • Publication number: 20120330931
    Abstract: In a system manages a plurality of pieces of sensor information in a plant, or the like, it can be reducing an amount of data stored in a database and easily a processing for searching a place of an anomaly and an anomaly cause. A database management method for use in a computer for managing a database, the database management method including: a step of analyzing a query; a step of generating a first inquiry for searching the database for compressed data; a step of generating a second inquiry for executing a search of time-series data; a step of extracting given data from the obtained time-series data, based on a response result of the second inquiry; and a step of generating an output result by extracting data to be output to a client computer from the given data.
    Type: Application
    Filed: July 22, 2010
    Publication date: December 27, 2012
    Inventors: Sadaki Nakano, Keiro Muro, Shinji Fujiwara
  • Publication number: 20080262757
    Abstract: In a leakage detection system configured by arranging a number of gas sensors, a leakage spot is promptly and accurately estimated. An output voltage of the each sensor is converted into concentration, and a time differential coefficient of the concentration is obtained. A leakage spot is estimated to be on a straight line connecting between the sensors for which the time differential coefficient is large.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 23, 2008
    Inventors: Koichi Yokosawa, Sadaki Nakano, Kazuo Saitoh
  • Patent number: 7345590
    Abstract: In a hydrogen gas station where a great number of sensors are installed, in case hydrogen leakage occurs, sensors in the vicinity of the leakage location start to transmit a warning to an access point all at once. This causes channel capacity saturation and failure to transmit a warning to the access point. Nodes and the access point are connected to each other by an uplink channel and a downlink channel. The access point detects congested/uncongested status of the uplink channel by using a wireless transmitter module and notifies the nodes of the congested/uncongested status of the channel by means for transmitting onto the downlink channel. Meanwhile, each node controls its transmission operation, according to the hydrogen concentration level detected by its hydrogen sensor and the uplink channel congested/uncongested status notified from the access point. In this way, channel overflow due to access congestion in case of hydrogen leakage can be prevented.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: March 18, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Sadaki Nakano, Koichi Yokosawa, Yasushi Goto
  • Publication number: 20070278098
    Abstract: It is an object of the present invention to minimize the power for heating of an FET-type gas sensor using an FET to ensure a long operating life. Two terminals 10 and 11 are arranged at a sensitive electrode 31 formed on a gate insulation film of an FET, and different potentials are applied thereto to cause a current to flow. The sensitive electrode 31 functions as a heating element by causing a current to flow in the sensitive electrode 31 which needs to be heated, allowing the FET-type gas sensor to be heated most efficiently. Furthermore, the terminals 10 and 11 configure a part of a temperature detector which measures the temperature of the heated sensitive electrode 31.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 6, 2007
    Inventors: Koichi Yokosawa, Sadaki Nakano, Yasushi Goto
  • Patent number: 7242309
    Abstract: A gas detection system capable of suppressing the power consumption of the system using gas sensors required for heating for measurement at high accuracy, comprising a server and a plurality of gas sensors connected by way of wireless communication with the server, in which each of the gas sensors is provided with a heater, a controller for controlling the ON-OFF for the power supply to the heater and a comparator for comparing the detected gas concentration with a predetermined threshold value. In the gas detection system, electric power is not usually supplied to the heater in each of the gas sensors and the gas sensor measures the gas concentration at a low accuracy and always compares it with the threshold value. In a case where the gas concentration exceeds the threshold value in one of the gas sensors, it turns the heater of its own to ON thereby switching the measurement to that at high accuracy and turns the heater to OFF upon completing the measurement.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: July 10, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Yokosawa, Sadaki Nakano, Yasushi Goto
  • Patent number: 7187961
    Abstract: A semiconductor device is employable for a compact and light-weight sensor system that is free of the need for battery replacement. The semiconductor device has a sensor chip (SCHIP1) comprising sensors (TD1, AS1, PD1, GS1), an A/D conversion circuit (AD1), a microprocessor (CPU1), a memory (MEM1), a transmission circuit (RF1), and a power generation circuit (CM1). The sensors, the A/D conversion circuit, the microprocessor, the memory, and the transmission circuit are formed on one side (SIDE1) of a substrate, while the power generation unit is formed on the other side (SIDE2) of the substrate.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: March 6, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Shunzo Yamashita, Kei Suzuki, Toshiyuki Aritsuka, Masayuki Miyazaki, Sadaki Nakano
  • Patent number: 7178046
    Abstract: A microprocessor includes a first cache memory, a first instruction fetch unit, a first instruction decoder, a first processing unit and a first latch that holds a control signal outputted from the first instruction decoder. When the first instruction fetch unit receives a first instruction performed by the first processing unit it outputs the first instruction to the first instruction decoder. When the first instruction fetch unit receives a second instruction which is not performed by the first processing unit, it outputs a specific instruction to the first instruction decoder, after which the supply of clock pulses to other latch circuits In the first processing unit is halted based on the control signal.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: February 13, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Tetsuya Yamada, Tomoichi Hayashi, Sadaki Nakano, Takanobu Tsunoda, Osamu Nishii
  • Publication number: 20060114113
    Abstract: A gas detection system capable of suppressing the power consumption of the system using gas sensors required for heating for measurement at high accuracy, comprising a server and a plurality of gas sensors connected by way of wireless communication with the server, in which each of the gas sensors is provided with a heater, a controller for controlling the ON-OFF for the power supply to the heater and a comparator for comparing the detected gas concentration with a predetermined threshold value. In the gas detection system, electric power is not usually supplied to the heater in each of the gas sensors and the gas sensor measures the gas concentration at a low accuracy and always compares it with the threshold value. In a case where the gas concentration exceeds the threshold value in one of the gas sensors, it turns the heater of its own to ON thereby switching the measurement to that at high accuracy and turns the heater to OFF upon completing the measurement.
    Type: Application
    Filed: March 3, 2005
    Publication date: June 1, 2006
    Inventors: Koichi Yokosawa, Sadaki Nakano, Yasushi Goto
  • Publication number: 20060114114
    Abstract: In a hydrogen gas station where a great number of sensors are installed, in case hydrogen leakage occurs, sensors in the vicinity of the leakage location start to transmit warning to an access point all at once. This causes channel capacity saturation and failure to transmit warning to the access point. Nodes and the access point are connected each other by an uplink channel and a downlink channel. The access point detects congested/uncongested status of the uplink channel by using a wireless transmitter module and notifies the nodes of the congested/uncongested status of the channel by means for transmitting onto the downlink channel. Meanwhile, each node controls its transmission operation, according to the hydrogen concentration level detected by its hydrogen sensor and the uplink channel congested/uncongested status notified from the access point. In this way, channel overflow due to access congestion in case of hydrogen leakage can be prevented.
    Type: Application
    Filed: July 15, 2005
    Publication date: June 1, 2006
    Inventors: Sadaki Nakano, Koichi Yokosawa, Yasushi Goto
  • Patent number: 6950767
    Abstract: A low cost system and method are provided for long-term monitoring of the quality of a building structure utilizing a semiconductor integrated circuit device buried in the structure. A monitoring chip includes a sensor, a microprocessor, a memory, a radio interface, an electric power controller and an electric power generator. The monitoring chip intermittently receives power to intermittently monitor information such as whether concrete is adequately cured, whether the quantity of moisture and chloride ions in concrete paste is adequate, or whether a state of stress inside concrete is in question. Temperature sensors, electric resistance sensors and pressure sensors respectively built in the monitoring chip use the built-in electric power generator as a power source, and the system store any abnormal measured values in a built-in memory. Collected quality data is transmitted according to an external request to indicate building structure quality.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: September 27, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Shunzo Yamashita, Kei Suzuki, Toshiyuki Aritsuka, Sadaki Nakano
  • Publication number: 20050169086
    Abstract: A microprocessor including a first cache memory, a first instruction fetch unit coupled to the first cache memory, a first instruction decoder coupled to the first instruction fetch unit, and a first processing unit coupled to the first instruction decoder, wherein, when the first instruction fetch unit is inputted with a first instruction which is performed by the first processing unit, the first instruction fetch unit outputs the first instruction to the first instruction decoder, wherein when the first instruction fetch unit is inputted with a second instruction which is not performed by the first processing unit, the first instruction fetch unit outputs a specific instruction to the first instruction decoder, and wherein, in the case where the first instruction fetch unit outputs the specific instruction to the first instruction decoder, the supply of clock pulse to the first processing unit is halted.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 4, 2005
    Inventors: Tetsuya Yamada, Tomoichi Hayashi, Sadaki Nakano, Takanobu Tsunoda, Osamu Nishii
  • Patent number: 6877087
    Abstract: A microprocessor to reduce wasteful power consumption of the floating-point unit. An instruction invalidation logic circuit is utilized to substitute the instruction not-to-use-the-floating-point unit, in the instruction string supplied from the instruction cache, with an invalidating instruction, hold that invalidating instruction in the floating-point register, and supply that invalidating instruction to a floating-point decoder in the floating-point unit. In cases when the invalidating instruction was continuous, the power consumption in the floating-point data path as well as the in the floating-point decoder and floating-point register is reduced.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: April 5, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Tetsuya Yamada, Tomoichi Hayashi, Sadaki Nakano, Takanobu Tsunoda, Osamu Nishii
  • Publication number: 20040153270
    Abstract: The object of the invention is to provide a system which can be produced at a low cost and can simultaneously eternally monitor the quality of building structure, a monitoring method and a semiconductor integrated circuit device for them. To achieve the object, a monitoring chip provided with a sensor, a microprocessor, a memory, a radio interface, an electric power controller and an electric power generator is mixed when concrete paste is prepared. The monitoring chip intermittently monitors information of whether the management of temperature when concrete is cured is adequate or not, whether the quantity of moisture and chloride ions in concrete paste is adequate or not or whether a state of stress inside concrete is in question or not by a temperature sensor, an electric resistance sensor and a pressure sensor respectively built in the monitoring chip using the built-in electric power generator as a power source, and stores in a built-in memory in case an abnormal value is measured.
    Type: Application
    Filed: November 14, 2003
    Publication date: August 5, 2004
    Inventors: Shunzo Yamashita, Kei Suzuki, Toshiyuki Aritsuka, Sadaki Nakano
  • Publication number: 20040000713
    Abstract: Disclosed here is a semiconductor device employable for a compact and light sensor system free of battery replacement. The semiconductor device configures a sensor chip (SCHIP1) comprising sensors (TD1, AS1, PD1, GS1), an A/D conversion circuit (AD1), a microprocessor (CPU1), a memory (MEM1), a transmission circuit (RF1), and a power generation circuit (CM1). The sensors, the A/D conversion circuit, the microprocessor, the memory, and the transmission circuit are formed on one side (SIDE1) of the substrate while the power generation unit is formed on the other side (SIDE2) of the substrate.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 1, 2004
    Inventors: Shunzo Yamashita, Kei Suzuki, Toshiyuki Aritsuka, Masayuki Miyazaki, Sadaki Nakano
  • Patent number: 5918045
    Abstract: The data processor includes a CPU and an instruction prefetch buffer that prefetches an instruction executed by the CPU and stores it therein. The CPU contains a detection circuit for detecting whether or not a displacement from a branch instruction to a branch target instruction is a specific displacement on the basis of branch displacement information that the concerned branch instruction holds. The instruction prefetch buffer clears an instruction already prefetched when the detection circuit detects that the displacement is not the specific displacement and outputs a branch target instruction newly fetched to the CPU, and outputs a branch target instruction already prefetched to the CPU when the detection circuit detects that the displacement is the specific displacement. Thus, the date processor fetches a branch target instruction within a certain range from the instruction prefetch buffer at a high speed without adding the nullifying bit on the instruction code.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: June 29, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Osamu Nishii, Sadaki Nakano, Norio Nakagawa, Takanobu Tsunoda