Patents by Inventor Motoyasu Tsunoda
Motoyasu Tsunoda 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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Patent number: 7350023Abstract: A memory device is provided which is connected to operate with power and clocks supplied from a host apparatus. The memory device includes external terminals, a flash memory chip to store data, an IC chip to process data; and a controller chip connected with the external terminals, the flash memory chip and the IC chip, wherein, the flash memory chip, the IC chip and the controller chip are discrete chips. The controller chip writes data inputted from the host apparatus into the flash memory chip or the IC chip and transfers data read from the flash memory chip or the IC chip to the host apparatus, based upon commands from the host apparatus.Type: GrantFiled: December 11, 2006Date of Patent: March 25, 2008Assignee: Renesas Technology Corp.Inventors: Nagamasa Mizushima, Takashi Tsunehiro, Motoyasu Tsunoda, Toshio Tanaka, Kunihiro Katayama, Koichi Kimura, Tomihisa Hatano
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Publication number: 20080024899Abstract: A hybrid disk drive, i.e., a disk drive with two types of permanent storage media (conventional disk media and nonvolatile memory, such as flash memory), uses its nonvolatile memory in operational modes other than the power-save or “standby” mode wherein the disks are spun down. In a first additional mode, called a “performance” mode, one or more blocks of write data are destaged from volatile memory (the disk drive's write cache) and written to the disk and simultaneously one or more data blocks of write data are destaged from the volatile memory and written to the nonvolatile memory. In a second additional mode, called a “harsh-environment” mode, the disk drive includes one or more environmental sensors, such as temperature and humidity sensors, and the nonvolatile memory temporarily replaces the disks as the permanent storage media.Type: ApplicationFiled: July 27, 2006Publication date: January 31, 2008Applicant: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.Inventors: Frank R. Chu, Richard M.H. New, Spencer W. Ng, Motoyasu Tsunoda
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Patent number: 7303136Abstract: A storage device to store data includes an external interface, a controller, a nonvolatile memory, and an IC card. In response to a first indication from the external device, the controller receives a program to be executed in the IC card from the nonvolatile memory or the external device and writes the program in the IC card. In response to a second indication from the external device, the controller deletes the program written in the IC card.Type: GrantFiled: March 3, 2004Date of Patent: December 4, 2007Assignee: Renesas Technology Corp.Inventors: Motoyasu Tsunoda, Nagamasa Mizushima, Kunihiro Katayama
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Patent number: 7281101Abstract: In one aspect of the present invention, a memory device comprises an interface which interfaces with an external device, an IC chip which stores one or more application programs and executes the application programs, a memory which stores associated data associated with the one or more application programs, and a controller connected with the interface, the IC chip, and the memory. In response to a predetermined command received from the external device by way of the interface, the controller performs transfer of the associated data between the IC chip and the memory without passing the associated data to the host device during transfer of the associated data between the IC chip and the memory.Type: GrantFiled: February 10, 2004Date of Patent: October 9, 2007Assignee: Renesas Technology Corp.Inventors: Nagamasa Mizushima, Motoyasu Tsunoda, Kunihiro Katayama
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Publication number: 20070206418Abstract: For a nonvolatile memory permitting electrical writing and erasing of information to be stored, such as a flash memory, the load on the system developer is to be reduced, and it is to be made possible to avoid, even if such important data for the system as management and address translation information are damaged, an abnormal state in which the system becomes unable to operate.Type: ApplicationFiled: May 8, 2007Publication date: September 6, 2007Inventors: Kenji Kozakai, Takeshi Nakamura, Tatsuya Ishii, Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama
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Patent number: 7230859Abstract: For a nonvolatile memory permitting electrical writing and erasing of information to be stored, such as a flash memory, the load on the system developer is to be reduced, and it is to be made possible to avoid, even if such important data for the system as management and address translation information are damaged, an abnormal state in which the system becomes unable to operate.Type: GrantFiled: January 12, 2006Date of Patent: June 12, 2007Assignee: Renesas Technology Corp.Inventors: Kenji Kozakai, Takeshi Nakamura, Tatsuya Ishii, Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama
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Publication number: 20070088906Abstract: A memory device is provided which is connected to operate with power and clocks supplied from a host apparatus. The memory device includes external terminals, a flash memory chip to store data, an IC chip to process data; and a controller chip connected with the external terminals, the flash memory chip and the IC chip, wherein, the flash memory chip, the IC chip and the controller chip are discrete chips. The controller chip writes data inputted from the host apparatus into the flash memory chip or the IC chip and transfers data read from the flash memory chip or the IC chip to the host apparatus, based upon commands from the host apparatus.Type: ApplicationFiled: December 11, 2006Publication date: April 19, 2007Inventors: Nagamasa Mizushima, Takashi Tsunehiro, Motoyasu Tsunoda, Toshio Tanaka, Kunihiro Katayama, Koichi Kimura, Tomihisa Hatano
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Patent number: 7185145Abstract: It is an object of the invention to improve security of a storage apparatus. The invention has: a flash memory chip; an IC card chip which can execute a security process (encryption, decryption, etc.); and a controller chip for controlling read/write of data from/into the flash memory chip and the IC card chip in response to a request from a host.Type: GrantFiled: May 29, 2002Date of Patent: February 27, 2007Assignee: Renesas Technology Corp.Inventors: Nagamasa Mizushima, Takashi Tsunehiro, Motoyasu Tsunoda, Toshio Tanaka, Kunihiro Katayama, Koichi Kimura, Tomihisa Hatano
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Patent number: 7162645Abstract: A storage device includes a tamper-resistant module and a flash memory. In correspondence with a command, a CPU inside the tamper-resistant module judges the security of data received from the outside, then recording the data as follows: High-security and small-capacity data is recorded into a memory inside the tamper-resistant module. High-security and large-capacity data is encrypted, then being recorded into the flash memory. Low-security data is recorded as it is into the flash memory. This recording method permits large-capacity data to be stored while ensuring a security (i.e., a security level) corresponding thereto.Type: GrantFiled: February 5, 2002Date of Patent: January 9, 2007Assignee: Renesas Technology Corp.Inventors: Shinya Iguchi, Takashi Tsunehiro, Motoyasu Tsunoda, Haruji Ishihara, Nagamasa Mizushima, Takashi Totsuka
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Publication number: 20060285238Abstract: A signal processing device having a feature of analog-to-digital converting a burst signal has a feature of selecting data bus to notify a disk control device 2 of a conversion result via an NRZ data bus. The disk control device 2 includes means for storing the result of the analog-to-digital conversion of said servo positional signal. The positional signal of a head of the disk device is digitalized in an R/W channel. Sampling for digital conversion is performed in only a window which is defined only in the vicinity of peaks of the positional signal. The values of peaks which are obtained by sampling are averaged by an averaging circuit. This enables the influence of noise occurred outside of the window to be eliminated. Although the noise in the window is sampled, its adverse influence is suppressed by the averaging processing.Type: ApplicationFiled: August 22, 2006Publication date: December 21, 2006Inventors: Motoyasu Tsunoda, Shoichi Miyazawa, Yukie Miyazawa, Hitoshi Ogawa, Ryutaro Horita, Takashi Nara, Masatoshi Nishina, Katsumi Yamamoto
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Patent number: 7139143Abstract: A signal processing device for analog-to-digital converting a burst signal has a feature of selecting a data bus to notify a disk control device of a conversion result via an NRZ data bus. The disk control device stores the result of the analog-to-digital conversion of the servo positional signal. The positional signal of a head of the disk device is digitized in a R/W channel. Sampling for digital conversion is performed in only a window which is defined only in the vicinity of peaks of the positional signal. The values of peaks which are obtained by sampling are averaged by an averaging circuit. This enables the influence of noise occurred outside of the window to be eliminated. Although the noise in the window is sampled, its adverse influence is suppressed by the averaging processing.Type: GrantFiled: March 17, 2003Date of Patent: November 21, 2006Assignee: Hitachi, Ltd.Inventors: Motoyasu Tsunoda, Yukie Miyazawa, legal representative, Hitoshi Ogawa, Ryutaro Horita, Takashi Nara, Masatoshi Nishina, Katsumi Yamamoto, Shoichi Miyazawa, deceased
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Publication number: 20060236024Abstract: Embodiments of the invention provide an easy-to-operate information read/write device that operates with minimum electric power consumption, has an excellent prevention effect against EMI, is small in weight and in physical size, and is particularly suitable for use in hand-held devices. In one embodiment, an information read/write device having a processor A to control a scanning module for a recording medium, a write signal processing module, and a read signal processing module, and a processor B for instructing the processor A to write information onto or read information from the recording medium, is further provided with a memory module which is random-accessible from the processors A and B and into which the information to be written or read is stored.Type: ApplicationFiled: April 10, 2006Publication date: October 19, 2006Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: Hideki Saga, Motoyasu Tsunoda, Terumi Takashi
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Patent number: 7116508Abstract: A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.Type: GrantFiled: January 28, 2005Date of Patent: October 3, 2006Assignee: Hitachi Global Storage Technologies Japan, Ltd.Inventors: Kyo Akagi, Takashi Yamaguchi, Koki Uefune, Motoyasu Tsunoda, Atsushi Saito
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Patent number: 7062618Abstract: A memory apparatus having a volatile memory for storing data from a host, a nonvolatile memory capable of storing the data stored in the volatile memory, and electrically deleting the data, and a control circuit for controlling data transfer between the volatile memory and the nonvolatile memory. A capacity of a data storage area of the volatile memory is larger than that of a data storage area of the nonvolatile memory.Type: GrantFiled: June 13, 2002Date of Patent: June 13, 2006Assignee: Hitachi, Ltd.Inventors: Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama, Kazuo Nakamura
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Publication number: 20060114726Abstract: For a nonvolatile memory permitting electrical writing and erasing of information to be stored, such as a flash memory, the load on the system developer is to be reduced, and it is to be made possible to avoid, even if such important data for the system as management and address translation information are damaged, an abnormal state in which the system becomes unable to operate.Type: ApplicationFiled: January 12, 2006Publication date: June 1, 2006Inventors: Kenji Kozakai, Takeshi Nakamura, Tatsuya Ishii, Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama
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Patent number: 7012845Abstract: For a nonvolatile memory permitting electrical writing and erasing of information to be stored, such as a flash memory, the load on the system developer is to be reduced, and it is to be made possible to avoid, even if such important data for the system as management and address translation information are damaged, an abnormal state in which the system becomes unable to operate.Type: GrantFiled: February 9, 2005Date of Patent: March 14, 2006Assignee: Renesas Technology Corp.Inventors: Kenji Kozakai, Takeshi Nakamura, Tatsuya Ishii, Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama
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Publication number: 20050235151Abstract: A licence hub including a hub apparatus to which one or more apparatus and devices can be electrically connected, and a safe storage device for storing therein keys used to decode the encrypted contents data is added to the existing system to construct a licence network. A controller of the licence network acquires the information of various kinds of apparatuses and devices which are electrically connected to the licence hub, and determines automatically the apparatus and/or the device suitable for executing the processing when carrying out the playback of contents or movement of the key to execute these processings.Type: ApplicationFiled: June 13, 2005Publication date: October 20, 2005Inventors: Junichi Maruyama, Takashi Tsunehiro, Kunihiro Katayama, Takashi Totsuka, Motoyasu Tsunoda, Shinya Iguchi, Nagamasa Mizushima
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Patent number: 6915427Abstract: A license hub including a hub apparatus to which one or more apparatus and devices can be electrically connected, and a safe storage device for storing therein keys used to decode the encrypted contents data is added to the existing system to construct a license network. A controller of the license network acquires the information of various kinds of apparatuses and devices which are electrically connected to the license hub, and determines automatically the apparatus and/or the device suitable for executing the processing when carrying out the playback of contents or movement of the key to execute these processings.Type: GrantFiled: March 8, 2001Date of Patent: July 5, 2005Assignee: Hitachi, Ltd.Inventors: Junichi Maruyama, Takashi Tsunehiro, Kunihiro Katayama, Takashi Totsuka, Motoyasu Tsunoda, Shinya Iguchi, Nagamasa Mizushima
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Publication number: 20050141300Abstract: For a nonvolatile memory permitting electrical writing and erasing of information to be stored, such as a flash memory, the load on the system developer is to be reduced, and it is to be made possible to avoid, even if such important data for the system as management and address translation information are damaged, an abnormal state in which the system becomes unable to operate.Type: ApplicationFiled: February 9, 2005Publication date: June 30, 2005Inventors: Kenji Kozakai, Takeshi Nakamura, Tatsuya Ishii, Motoyasu Tsunoda, Shinya Iguchi, Junichi Maruyama
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Publication number: 20050128627Abstract: A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic head; a driving mechanism for moving the magnetic head to a predetermined position on the magnetic disk; a magnetic writing/reading circuit for enabling the magnetic head to write/read information on/from the magnetic disk; an interface for sending/receiving signals for controlling the information to/from another information processing device, a device for detecting whether or not the magnetic disk apparatus is in operation; and mechanism for latching movable part of the magnetic disk apparatus on the basis of detection result of the detecting device.Type: ApplicationFiled: January 28, 2005Publication date: June 16, 2005Inventors: Kyo Akagi, Takashi Yamaguchi, Koki Uefune, Motoyasu Tsunoda, Atsushi Saito