Patents by Inventor Norio Fujita

Norio Fujita 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: 20230222298
    Abstract: A reader includes: a transmission device that repeatedly transmits, at a cycle corresponding to the code length of a prescribed code string, an electromagnetic wave that is phase-adjusted with the prescribed code string; a reception device that receives the reflected wave from the object to be identified, cyclically overlaps a reception signal relating to the reflected wave at the cycle of the code length, and calculates the correlation value of the overlapped result and the prescribed code string; and a control device that controls the transmission device and varies the transmission frequency of the electromagnetic wave in a steplike manner to perform a frequency sweep within a prescribed frequency band, controls the reception device, causing the reception device to calculate the correlation value for each transmission frequency, and specifies the attributes of the object to be identified on the basis of the correlation value for each transmission frequency.
    Type: Application
    Filed: April 2, 2021
    Publication date: July 13, 2023
    Inventors: Taketo NAMIKAWA, Hirokazu NAKAYAMA, Norio FUJITA
  • Patent number: 10223303
    Abstract: A computer system including a CPU and a memory subsystem connected via a system bus to communicate with each other, wherein the memory subsystem comprises a memory controller connected to the system bus, the computer system includes an up/down counter for counting a number of access requests and a number of requests other than access requests, a comparator for comparing the count of the up/down counter with a predetermined threshold value stored in a register, and a clock gate circuit for generating clock gate signals to decimate an operating clock of the memory controller in response to the comparison result of the comparator.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Patent number: 10169263
    Abstract: A method including estimating an access request frequency from a CPU to a memory subsystem by counting a number of CPU access requests and a number of requests other than CPU access requests, wherein the CPU is connected to the memory subsystem via a system bus, and the memory subsystem includes a memory controller connected to the system bus, and a DDR memory, including the estimated access request frequency with a predetermined threshold value stored in a register, generating a clock gate signal to decimate an operating clock of the memory controller in response to a result of comparing the estimated access request frequency with the predetermined threshold value, generating a dummy cycle signal to delay the timing of signal data output from the memory controller to the system bus, and generating a clock enable signal to decimate an operating clock of the DDR memory.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Patent number: 9710378
    Abstract: An apparatus configured to write, in a non-volatile memory, an address conversion table for wear leveling of the non-volatile memory includes a holding unit configured to hold a first address conversion table for wear leveling of a first block of the non-volatile memory, a second address conversion table for wear leveling of a second block other than the first block of the non-volatile memory, and a third address conversion table for wear leveling of a third block other than the first block of the non-volatile memory; and a writing unit configured to write, in the first block, a replication of the second address conversion table in addition to one replication of the first address conversion table and to write, in the third block, another replication of the first address conversion table in addition to a replication of the third address conversion table.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 18, 2017
    Assignee: International Business Machines Corporation
    Inventor: Norio Fujita
  • Patent number: 9710375
    Abstract: An apparatus configured to write, in a non-volatile memory, an address conversion table for wear leveling of the non-volatile memory includes a holding unit configured to hold a first address conversion table for wear leveling of a first block of the non-volatile memory, a second address conversion table for wear leveling of a second block other than the first block of the non-volatile memory, and a third address conversion table for wear leveling of a third block other than the first block of the non-volatile memory; and a writing unit configured to write, in the first block, a replication of the second address conversion table in addition to one replication of the first address conversion table and to write, in the third block, another replication of the first address conversion table in addition to a replication of the third address conversion table.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 18, 2017
    Assignee: International Business Machines Corporation
    Inventor: Norio Fujita
  • Publication number: 20170052888
    Abstract: An apparatus configured to write, in a non-volatile memory, an address conversion table for wear leveling of the non-volatile memory includes a holding unit configured to hold a first address conversion table for wear leveling of a first block of the non-volatile memory, a second address conversion table for wear leveling of a second block other than the first block of the non-volatile memory, and a third address conversion table for wear leveling of a third block other than the first block of the non-volatile memory; and a writing unit configured to write, in the first block, a replication of the second address conversion table in addition to one replication of the first address conversion table and to write, in the third block, another replication of the first address conversion table in addition to a replication of the third address conversion table.
    Type: Application
    Filed: November 9, 2016
    Publication date: February 23, 2017
    Inventor: Norio Fujita
  • Patent number: 9514084
    Abstract: The present invention provides a computer system including a CPU with an L2 cache, a bus master device and a bus slave device. They are connected via a system bus to communicate with each other. The computer system 100 includes: a transaction monitor 60 for monitoring first transaction states TrC1-TrCn between a CPU 20 and an L2 cache 25, and second transaction states from TrB0 to TrBn between a system bus 10 and the L2 cache 25, between the system bus 10 and a bus master device 30 or between the system bus 10 and bus slave devices 40, 42; and a clock generator 70 able to change the frequency FreqC1-FreqS2 of the clock of the CPU 20, the system bus 10, and the bus slave devices 40, 42 according to the first transaction and second transaction states received from the transaction monitor 60.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: December 6, 2016
    Assignee: International Business Machines Corporation
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Publication number: 20160328340
    Abstract: A method including estimating an access request frequency from a CPU to a memory subsystem by counting a number of CPU access requests and a number of requests other than CPU access requests, wherein the CPU is connected to the memory subsystem via a system bus, and the memory subsystem includes a memory controller connected to the system bus, and a DDR memory, including the estimated access request frequency with a predetermined threshold value stored in a register, generating a clock gate signal to decimate an operating clock of the memory controller in response to a result of comparing the estimated access request frequency with the predetermined threshold value, generating a dummy cycle signal to delay the timing of signal data output from the memory controller to the system bus, and generating a clock enable signal to decimate an operating clock of the DDR memory.
    Type: Application
    Filed: July 20, 2016
    Publication date: November 10, 2016
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Publication number: 20160328000
    Abstract: A computer system including a CPU and a memory subsystem connected via a system bus to communicate with each other, wherein the memory subsystem comprises a memory controller connected to the system bus, the computer system includes an up/down counter for counting a number of access requests and a number of requests other than access requests, a comparator for comparing the count of the up/down counter with a predetermined threshold value stored in a register, and a clock gate circuit for generating clock gate signals to decimate an operating clock of the memory controller in response to the comparison result of the comparator.
    Type: Application
    Filed: July 20, 2016
    Publication date: November 10, 2016
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Patent number: 9448953
    Abstract: The present invention provides a computer system including a CPU and a memory subsystem connected via a system bus to communicate with each other. The computer system 100 includes a bus monitor 50 connected to the system bus 10 to monitor the frequency of access requests from the CPU 20 to the memory subsystem 30, and a latency changing means 60 for sending a control signal to the memory subsystem to change the latency of the access requests in response to the frequency of the access requests received from the bus monitor.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 20, 2016
    Assignee: International Business Machines Corporation
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Patent number: 9376577
    Abstract: The present invention relates to a coating composition containing a colored aluminum pigment and a titanium oxide pigment, wherein in the case where a coating film formed from the coating composition is illuminated at 45 degrees with respect to the surface of the coating film, a ratio of lightness L* of light observed at 45 degrees with respect to specularly reflected light, relative to lightness L* of light observed at 110 degrees with respect to specularly reflected light is within a range of 1.00 to 1.50. The invention further relates to a method for forming a coating film, including steps of applying the above-described coating composition to a substrate; and further applying a clear coating composition thereto.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: June 28, 2016
    Assignee: KANSAI PAINT CO., LTD.
    Inventors: Hiroshi Shimizu, Norio Fujita
  • Publication number: 20150347292
    Abstract: An apparatus configured to write, in a non-volatile memory, an address conversion table for wear leveling of the non-volatile memory includes a holding unit configured to hold a first address conversion table for wear leveling of a first block of the non-volatile memory, a second address conversion table for wear leveling of a second block other than the first block of the non-volatile memory, and a third address conversion table for wear leveling of a third block other than the first block of the non-volatile memory; and a writing unit configured to write, in the first block, a replication of the second address conversion table in addition to one replication of the first address conversion table and to write, in the third block, another replication of the first address conversion table in addition to a replication of the third address conversion table.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Inventor: NORIO FUJITA
  • Publication number: 20140025855
    Abstract: The present invention provides a computer system including a CPU and a memory subsystem connected via a system bus to communicate with each other. The computer system 100 includes a bus monitor 50 connected to the system bus 10 to monitor the frequency of access requests from the CPU 20 to the memory subsystem 30, and a latency changing means 60 for sending a control signal to the memory subsystem to change the latency of the access requests in response to the frequency of the access requests received from the bus monitor.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Publication number: 20140025853
    Abstract: The present invention provides a computer system including a CPU with an L2 cache, a bus master device and a bus slave device. They are connected via a system bus to communicate with each other. The computer system 100 includes: a transaction monitor 60 for monitoring first transaction states TrC1-TrCn between a CPU 20 and an L2 cache 25, and second transaction states from TrB0 to TrBn between a system bus 10 and the L2 cache 25, between the system bus 10 and a bus master device 30 or between the system bus 10 and bus slave devices 40, 42; and a clock generator 70 able to change the frequency FreqC1-FreqS2 of the clock of the CPU 20, the system bus 10, and the bus slave devices 40, 42 according to the first transaction and second transaction states received from the transaction monitor 60.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventors: Norio Fujita, Masahiro Hori, Masahiro Murakami, Junka Okazawa
  • Publication number: 20120295032
    Abstract: The present invention relates to a coating composition containing a colored aluminum pigment and a titanium oxide pigment, wherein in the case where a coating film formed from the coating composition is illuminated at 45 degrees with respect to the surface of the coating film, a ratio of lightness L* of light observed at 45 degrees with respect to specularly reflected light, relative to lightness L* of light observed at 110 degrees with respect to specularly reflected light is within a range of 1.00 to 1.50. The invention further relates to a method for forming a coating film, including steps of applying the above-described coating composition to a substrate; and further applying a clear coating composition thereto.
    Type: Application
    Filed: January 13, 2011
    Publication date: November 22, 2012
    Inventors: Hiroshi Shimizu, Norio Fujita
  • Patent number: 7843742
    Abstract: The present invention relates to a memory system including a memory cell array and being connected to an address input, a command input, and a data input/output, said memory system including latching circuits (RALTH and WALTH) for latching a read address and a write address being inputted from the address input, an address selection circuit (ACOMSEL) for selecting, as an access address, any one of the read address and the write address being latched in the latching circuits, a read latching circuit (PFLTH) for latching a read data being read from the memory cell array, a write latching circuit (DINLTH) for latching a write data being inputted from the data input/output and a control circuit (ACTL) for controlling the access address being selected by said address selection circuit in response to a command being inputted from said command input, said control circuit for controlling, if the memory cell corresponding to said selected access address is activated and further said selected access address is a write
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 30, 2010
    Assignee: International Business Machines Corporation
    Inventors: Toshio Sunaga, Norio Fujita
  • Publication number: 20100061156
    Abstract: The present invention relates to a memory system including a memory cell array and being connected to an address input, a command input, and a data input/output, said memory system including latching circuits (RALTH and WALTH) for latching a read address and a write address being inputted from the address input, an address selection circuit (ACOMSEL) for selecting, as an access address, any one of the read address and the write address being latched in the latching circuits, a read latching circuit (PFLTH) for latching a read data being read from the memory cell array, a write latching circuit (DINLTH) for latching a write data being inputted from the data input/output and a control circuit (ACTL) for controlling the access address being selected by said address selection circuit in response to a command being inputted from said command input, said control circuit for controlling, if the memory cell corresponding to said selected access address is activated and further said selected access address is a write
    Type: Application
    Filed: July 26, 2006
    Publication date: March 11, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Toshio Sunaga, Norio Fujita
  • Publication number: 20080320236
    Abstract: A system includes processor units, caches, memory shared by the processor units, a system bus interface, and a cache snoop interfaces. Each processor unit has one of the caches. The system bus interface communicatively connects the processor units to the memory via at least the caches, and is a non-cache snoop system bus interface. The cache snoop interface communicatively connects the caches, and is independent of the system bus interface. Upon a given processor unit writing a new value to an address within the memory such that the new value and the address are cached within the cache of the given processor unit a write invalidation event is sent over the cache snoop interface to the caches of the processor units other than the given processor unit. This event invalidates the address as stored within any of the caches other than the cache of the given processor unit.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 25, 2008
    Inventors: Makoto Ueda, Kenichi Tsuchiya, Takeo Nakada, Norio Fujita
  • Patent number: 7298789
    Abstract: Wireless data communication method and apparatus using two electromagnetic signals having different polarizations. Codes related to relative values of the amplitudes of the two signals are generated in correspondence with data to be transmitted. The signals are modulated according to the codes using phase shift keying and amplitude shift keying. The amplitude shift keying modulates the two electromagnetic signals by changing the difference between their two amplitudes in accordance with data encodings. The two signals are transmitted to receiver, which decodes the phases and relative amplitudes to obtain the codes, and reproduces the data from the obtained codes.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: November 20, 2007
    Assignee: International Business Machines Corporation
    Inventors: Hiroaki Kubo, Norio Fujita
  • Patent number: 7237105
    Abstract: A startup system using a boot code includes an external memory storing a boot code, a buffer connected to an external memory for storing the boot code transferred from the external memory, a DMA controller for commanding transfer of the boot code from the external memory to the buffer, and a mapping circuit connected to the buffer for mapping the boot code stored in the buffer onto a CPU. Accordingly, a flash ROM for storing the boot code may be eliminated, thereby reducing system cost.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: June 26, 2007
    Assignee: International Business Machines Corporation
    Inventors: Norio Fujita, Masahiro Murakami