Patents by Inventor Tetsuro Honmura

Tetsuro Honmura 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: 11102299
    Abstract: A data processing system includes a plurality of computers which include a processor and a memory, a storage device which is connected to the plurality of computers to store data, and a management computer controls the plurality of computers. The computer includes a node pool which can perform, stop, and delete one or more nodes. The node pool includes one or more first nodes which function as a data buffer. The management computer causes the node to measure a performance of data transmission between the data buffer and the storage device, determines a number of increased/decreased nodes on the basis of a measurement result of the performance, and notifies the node pool of a command of performing or deleting the first node according to the determined number of increased/decreased nodes. The node pool adjusts a number of the first nodes according to performing or deleting command.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: August 24, 2021
    Assignee: HITACHI, LTD.
    Inventors: Hirofumi Inomata, Yusuke Funaya, Tetsuro Honmura
  • Patent number: 10592274
    Abstract: This computer system includes: at least one computer having a memory and a plurality of CPU cores; and a storage sub device having a plurality of logical storage units configured using storage devices. In the computer, a plurality of queues are configured in the memory, and at least one of the plurality of CPU cores is assigned to each of the plurality of queues. The queue is enqueued with an I/O command dispatched from a CPU core, to which the queue is assigned, to a logical storage unit. The computer system has access control information including information concerning whether to accept or refuse access from each queue to each logical storage unit.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: March 17, 2020
    Assignee: HITACHI, LTD.
    Inventors: Katsuto Sato, Tetsuro Honmura
  • Publication number: 20190173949
    Abstract: A data processing system includes a plurality of computers which include a processor and a memory, a storage device which is connected to the plurality of computers to store data, and a management computer controls the plurality of computers. The computer includes a node pool which can perform, stop, and delete one or more nodes. The node pool includes one or more first nodes which function as a data buffer. The management computer causes the node to measure a performance of data transmission between the data buffer and the storage device, determines a number of increased/decreased nodes on the basis of a measurement result of the performance, and notifies the node pool of a command of performing or deleting the first node according to the determined number of increased/decreased nodes. The node pool adjusts a number of the first nodes according to performing or deleting command.
    Type: Application
    Filed: March 22, 2017
    Publication date: June 6, 2019
    Applicant: HITACHI, LTD.
    Inventors: Hirofumi INOMATA, Yusuke FUNAYA, Tetsuro HONMURA
  • Patent number: 10154113
    Abstract: A computer system according to one preferred embodiment of the present invention has a server and a storage subsystem, wherein the server is configured to enable data write to a cache area of the storage subsystem. Further, the server manages the usages of the cache area. When storing data from the server to the cache area, the server determines whether a data-writable area exists in the cache area or not. If there is a writable area, data is stored in the writable area.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 11, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuro Honmura, Yoshifumi Fujikawa, Keisuke Hatasaki, Mitsuhiro Okada, Akifumi Suzuki
  • Publication number: 20180253331
    Abstract: This computer system includes: at least one computer having a memory and a plurality of CPU cores; and a storage sub device having a plurality of logical storage units configured using storage devices. In the computer, a plurality of queues are configured in the memory, and at least one of the plurality of CPU cores is assigned to each of the plurality of queues. The queue is enqueued with an I/O command dispatched from a CPU core, to which the queue is assigned, to a logical storage unit. The computer system has access control information including information concerning whether to accept or refuse access from each queue to each logical storage unit.
    Type: Application
    Filed: October 26, 2015
    Publication date: September 6, 2018
    Applicant: HITACHI, LTD.
    Inventors: Katsuto SATO, Tetsuro HONMURA
  • Publication number: 20170279918
    Abstract: A computer system according to one preferred embodiment of the present invention has a server and a storage subsystem, wherein the server is configured to enable data write to a cache area of the storage subsystem. Further, the server manages the usages of the cache area. When storing data from the server to the cache area, the server determines whether a data-writable area exists in the cache area or not. If there is a writable area, data is stored in the writable area.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 28, 2017
    Inventors: Tetsuro HONMURA, Yoshifumi FUJIKAWA, Keisuke HATASAKI, Mitsuhiro OKADA, Akifumi SUZUKI
  • Publication number: 20090282213
    Abstract: A basic cell capable of a fixed operating frequency regardless of the configuration information, which is also capable of effectively utilizing the arithmetic logic circuit within the cell in a LSI semiconductor integrated circuit, is capable of dynamic changes in configuration information. The circuit has an input switch ISW connected to multiple data input nodes, an output switch OSW connected to multiple data output nodes, a first data path containing an arithmetic logic circuit ALU and a result storage flip-flop CFF0 between the input switch ISW and output switch OSW. The second data path containing a data transfer flip-flop between an input switch ISW and an output switch OSW, and the result storage flip-flop CFF stores the calculated result data from the arithmetic logic circuit ALU, and the data transfer flip-flop holds data input from any of the multiple data input nodes.
    Type: Application
    Filed: July 17, 2009
    Publication date: November 12, 2009
    Inventors: Hiroshi TANAKA, Yohei Akita, Tetsuro Honmura, Fumio Arakawa, Takanobu Tsunoda
  • Patent number: 7568084
    Abstract: A basic cell capable of a fixed operating frequency regardless of the configuration information, which is also capable of effectively utilizing the arithmetic logic circuit within the cell in a LSI semiconductor integrated circuit, is capable of dynamic changes in configuration information. The circuit has an input switch ISW connected to multiple data input nodes, an output switch OSW connected to multiple data output nodes, a first data path containing an arithmetic logic circuit ALU and a result storage flip-flop CFF0 between the input switch ISW and output switch OSW. The second data path containing a data transfer flip-flop between an input switch ISW and an output switch OSW, and the result storage flip-flop CFF stores the calculated result data from the arithmetic logic circuit ALU, and the data transfer flip-flop holds data input from any of the multiple data input nodes.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: July 28, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Tanaka, Yohei Akita, Tetsuro Honmura, Fumio Arakawa, Takanobu Tsunoda
  • Patent number: 7406643
    Abstract: A semiconductor integrated circuit device which guarantees the characteristics of writing to and reading from the built-in memory even when the manufacturing process conditions are varied, a method of manufacturing the device, and a medium for storing a processing procedure for deciding the number of delay circuits built in the device used for designing. The semiconductor integrated circuit device is provided with a cache memory which includes a BIST circuit composed of a pattern generator, a pattern comparator, an output register, a register controlled by a register control a register write signal; a variable delay circuit controlled by the register; word lines, and a sense amplifier enable signal line. The timing for enabling the sense amplifier is changed and the memory is measured by a BIST circuit at the timing, thereby deciding the optimal timing.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: July 29, 2008
    Assignee: Renesas Technology Corporation
    Inventors: Kenichi Osada, Koichiro Ishibashi, Kazuo Yano, Tetsuro Honmura
  • Publication number: 20050015572
    Abstract: A basic cell capable of a fixed operating frequency regardless of the configuration information, which is also capable of effectively utilizing the arithmetic logic circuit within the cell in a LSI semiconductor integrated circuit, is capable of dynamic changes in configuration information. The circuit has an input switch ISW connected to multiple data input nodes, an output switch OSW connected to multiple data output nodes, a first data path containing an arithmetic logic circuit ALU and a result storage flip-flop CFF0 between the input switch ISW and output switch OSW. The second data path containing a data transfer flip-flop between an input switch ISW and an output switch OSW, and the result storage flip-flop CFF stores the calculated result data from the arithmetic logic circuit ALU, and the data transfer flip-flop holds data input from any of the multiple data input nodes.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 20, 2005
    Inventors: Hiroshi Tanaka, Yohei Akita, Tetsuro Honmura, Fumio Arakawa, Takanobu Tsunoda
  • Publication number: 20040218448
    Abstract: A semiconductor integrated circuit device supplied as an IP (Intellectual Property), etc., a method of manufacturing the device, and a medium for storing a processing procedure for deciding the number of delay circuits built in the device used for designing, more particularly to a semiconductor integrated circuit device which guarantees the characteristics of writing into and reading from the built-in memory even when the manufacturing process conditions are varied.
    Type: Application
    Filed: June 4, 2004
    Publication date: November 4, 2004
    Inventors: Kenichi Osada, Koichiro Ishibashi, Kazuo Yano, Tetsuro Honmura
  • Patent number: 6782499
    Abstract: A semiconductor integrated circuit device supplied as an IP (Intellectual Property), etc., a method of manufacturing the device, and a medium for storing a processing procedure for deciding the number of delay circuits built in the device used for designing, more particularly to a semiconductor integrated circuit device which guarantees the characteristics of writing into and reading from the built-in memory even when the manufacturing process conditions are varied. The semiconductor integrated circuit device is provided with a cache memory which includes a BIST circuit composed of a pattern generator, a pattern comparator, and an output register; a register controlled by a register control signal and a register write signal; a variable delay circuit controlled by the register; word lines, and a sense amplifier enable signal line. The timing for enabling the sense amplifier is changed and the memory is measured by a BIST circuit at the timing, thereby deciding the optimal timing.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: August 24, 2004
    Assignee: Renesas Technology Corporation
    Inventors: Kenichi Osada, Koichiro Ishibashi, Kazuo Yano, Tetsuro Honmura
  • Publication number: 20030051199
    Abstract: A semiconductor integrated circuit device supplied as an IP (Intellectual Property), etc., a method of manufacturing the device, and a medium for storing a processing procedure for deciding the number of delay circuits built in the device used for designing, more particularly to a semiconductor integrated circuit device which guarantees the characteristics of writing into and reading from the built-in memory even when the manufacturing process conditions are varied. pa The semiconductor integrated circuit device is provided with a cache memory which includes a BIST circuit composed of a pattern generator, a pattern comparator, and an output register; a register controlled by a register control signal and a register write signal; a variable delay circuit controlled by the register; word lines, and a sense amplifier enable signal line. The timing for enabling the sense amplifier is changed and the memory is measured by a BIST circuit at the timing, thereby deciding the optimal timing.
    Type: Application
    Filed: November 1, 2002
    Publication date: March 13, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kenichi Osada, Koichiro Ishibashi, Kazuo Yano, Tetsuro Honmura
  • Patent number: 6496952
    Abstract: A semiconductor integrated circuit device, a method of manufacturing the device, and a medium for storing a processing procedure for deciding the number of delay circuits built in the device used for designing are disclosed. More particularly, a semiconductor integrated circuit device which guarantees the characteristics of writing into and reading from the built-in memory even when the manufacturing process conditions are varied is obtained. The semiconductor integrated circuit device is provided with a cache memory which includes a BIST circuit composed of a pattern generator, a pattern comparator, and an output register; a register controlled by a register control signal and a register write signal; a variable delay circuit controlled by the register; word lines, and a sense amplifier enable signal line. The timing for enabling the sense amplifier is changed and the memory is measured by the BIST, thereby deciding the optimal timing.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: December 17, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Osada, Koichiro Ishibashi, Kazuo Yano, Tetsuro Honmura
  • Patent number: 5249276
    Abstract: An address translation apparatus which includes a memory for storing a plurality of physical addresses, and a content addressable memory unit which stores a plurality of signal pairs that correspond to the plurality of physical addresses, each of the signal paris includes a logical address that corresponds to one of the plurality of physical addresses and memory protection level data that indicates a memory protection level allocated to a memory position of the one of the physical addresses. The content addressable memory unit includes apparatus for searching a signal pair that has a logical address in coincident with a logical address being subjected to address translation and comparing memory protection level data to comparative data at a bit position which is indicated to be the bit position to be searched by mask data, in response to the logical address translation.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: September 28, 1993
    Assignees: Hitachi, Ltd., Hitachi Micro Computer Engineering Ltd.
    Inventors: Tetsuro Honmura, Katsuaki Takagi, Shunpei Kawasaki, Nobutaka Amano, Kimio Ooe