Having Specified Disc Drive Patents (Class 369/30.58)
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Patent number: 11409464Abstract: Embodiments of the present invention disclose a data processing solution. In this solution, a hard disk receives a call instruction sent by a server, where the call instruction includes a function identifier of a to-be-called function and an operation address; and the hard disk calls the function in the hard disk based on the function identifier, and performs, based on the function, an operation on data corresponding to the operation address.Type: GrantFiled: September 18, 2018Date of Patent: August 9, 2022Assignee: Huawei Technologies Co., Ltd.Inventor: Mingchang Wei
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Patent number: 11043235Abstract: An apparatus includes a plurality of storage media mounted on a rotatable spindle. The apparatus also includes an actuator with at least one actuator arm configured to translate among the plurality of storage media and at least two heads supported on the at least one actuator arm. Each of the at least two heads is configured to communicate with the plurality of storage media.Type: GrantFiled: February 28, 2020Date of Patent: June 22, 2021Assignee: Seagate Technology LLCInventors: Riyan Alex Mendonsa, Edward Charles Gage, Kevin Gomez, Brett R. Herdendorf, Dan Mohr
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Patent number: 10811045Abstract: An apparatus includes a plurality of storage media mounted on a rotatable spindle. The apparatus also includes an actuator with at least one actuator arm configured to translate among the plurality of storage media and at least two heads supported on the at least one actuator arm. Each of the at least two heads is configured to communicate with the plurality of storage media.Type: GrantFiled: April 27, 2018Date of Patent: October 20, 2020Assignee: SEAGATE TECHNOLOGY LLCInventors: Riyan Alex Mendonsa, Edward Charles Gage, Kevin Gomez
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Patent number: 8971688Abstract: An information recording apparatus has a stop mode in which only recording means comprised of a rotatable drum on which a recording head is mounted and recording medium driving means comprised of a capstan/pinch roller are stopped, which stop mode can be changed from a record temporary stop mode. During the stop mode of the recording means and the recording medium driving means, a video signal photo-taken by a camera of the information recording apparatus can be outputted externally, and, change to the stop mode is made effective by a combination of user's selection and/or presence/absence of an external connection device.Type: GrantFiled: April 24, 2013Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventor: Keiji Sato
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Patent number: 8447160Abstract: An information recording apparatus has a stop mode in which only recording means comprised of a rotatable drum on which a recording head is mounted and recording medium driving means comprised of a capstan/pinch roller are stopped, which stop mode can be changed from a record temporary stop mode. During the stop mode of the recording means and the recording medium driving means, a video signal photo-taken by a camera of the information recording apparatus can be outputted externally, and, change to the stop mode is made effective by a combination of user's selection and/or presence/absence of an external connection device.Type: GrantFiled: February 6, 2008Date of Patent: May 21, 2013Assignee: Canon Kabushiki KaishaInventor: Keiji Sato
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Patent number: 7907500Abstract: The invention discloses radio frequency zero crossing signal generators for optical disc drives, comprising a controllable low pass filter, a comparator, and a control circuit. The controllable low pass filter evaluates an average level of the magnitude of a radio frequency ripple from an optical disc drive. The comparator compares the radio frequency ripple to the average level evaluated by the controllable low pass filter to generate a radio frequency zero crossing signal. When the optical disc drive reads a fingerprint defect on an optical disc, the control circuit adjusts a cut-off frequency of the controllable low pass filter to adjust the speed at which the controllable low pass filter evaluates the average level.Type: GrantFiled: April 23, 2007Date of Patent: March 15, 2011Assignee: Princeton Technology CorporationInventor: Te-Ju Wang
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Patent number: 7848518Abstract: A method for generating a root key is described. Stable bits of a plurality of comparator outputs are identified. The root key is selected from a number of the identified stable bits. A statistically unique value is calculated from the root key using a cryptographically secure function. An identifier of the identified stable bits and the statistically unique value are stored in a memory.Type: GrantFiled: June 29, 2004Date of Patent: December 7, 2010Assignee: Seagate Technology LLCInventor: Laszlo Hars
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Patent number: 7619953Abstract: A recording and playback apparatus for recording data on a recording medium that allows additional writing includes a recording device configured to record first data on the recording medium; a random-number generator configured to generate a random number; and a calculator configured to calculate a first identification code indicating that the first data has been recorded on the recording medium by the recording and playback apparatus, by applying a predetermined function to data included in the first data recorded on the recording medium by the recording device, the data including second data that changes on each recording on the recording medium by the recording device and including the random value generated by the random-value generator. The recording device further records the random value generated by the random-number generator and the first identification code calculated by the calculator so that the random value and the first identification code are included in the first data.Type: GrantFiled: November 15, 2005Date of Patent: November 17, 2009Assignee: Sony CorporationInventor: Hiroki Shiina
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Patent number: 7453774Abstract: A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.Type: GrantFiled: December 30, 2004Date of Patent: November 18, 2008Assignee: Hitachi, Ltd.Inventors: Azuma Kano, Takuji Ogawa, Ikuya Yagisawa
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Patent number: 7447121Abstract: A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.Type: GrantFiled: March 20, 2007Date of Patent: November 4, 2008Assignee: Hitachi, Ltd.Inventors: Azuma Kano, Takuji Ogawa, Ikuya Yagisawa
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Patent number: 7203135Abstract: A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.Type: GrantFiled: December 30, 2004Date of Patent: April 10, 2007Assignee: Hitachi, Ltd.Inventors: Azuma Kano, Takuji Ogawa, Ikuya Yagisawa
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Patent number: 7200074Abstract: A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.Type: GrantFiled: December 30, 2004Date of Patent: April 3, 2007Assignee: Hitachi, Ltd.Inventors: Azuma Kano, Takuji Ogawa, Ikuya Yagisawa
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Patent number: 7057981Abstract: A disk array system having first and second housings and a controller for controlling the first and second housings. Fiber channel hard disk drives are received in the first housing, and serial ATA hard disk drives are received in the second housing. When reading data stored in a serial ATA hard disk drive in the second housing, the controller reads a plurality of pieces of data including the data to be read and parity data for the plurality of pieces of data from all the hard disk drives of an RAID group to which the hard disk drive storing the data to be read belongs. Thus, the controller examines whether the plurality of pieces of data including the data to be read are written in the hard disk drives with erroneous contents or not.Type: GrantFiled: January 29, 2004Date of Patent: June 6, 2006Assignee: Hitachi, Ltd.Inventors: Azuma Kano, Takuji Ogawa, Ikuya Yagisawa
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Publication number: 20030161224Abstract: Methods and apparatuses are provided that allow a label to be formed on optical disc or other like object using a write laser mechanism within an optical disc drive or like device.Type: ApplicationFiled: February 28, 2002Publication date: August 28, 2003Inventors: Bradley J. Anderson, Bruce L. Johnson