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1. 发明申请

US20070242378A1 Magnetic recording and reproducing apparatus and magnetic recording and reproducing method 失效
标题翻译：磁记录和再现装置以及磁记录和再现方法
公开(公告)号：US20070242378A1
公开(公告)日：2007-10-18
申请号：US11732403
申请日：2007-04-03
申请人： Tomohiro Ikegami , Hiroyuki Ino , Toshiyuki Nakagawa , Tomoyuki Hiura , Norihito Mihota , Masaaki Hara , Yoshihiko Deoka , Hidetoshi Honda , Shinichi Fukuda
发明人： Tomohiro Ikegami , Hiroyuki Ino , Toshiyuki Nakagawa , Tomoyuki Hiura , Norihito Mihota , Masaaki Hara , Yoshihiko Deoka , Hidetoshi Honda , Shinichi Fukuda
IPC分类号： G11B20/10
CPC分类号： G11B20/22 , G11B5/0083 , G11B5/584 , G11B20/10009 , G11B2220/90
摘要： A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.
摘要翻译：公开了一种磁记录和再现装置，其包括：记录装置，被配置为以写入头记录构成用于数据检测的信号处理单元的多个轨道到磁记录介质; 一种再现装置，被配置为以与磁迹不同的位置关系从磁记录介质上的多个磁道同时以读头读出多个再现信号，再现信号被布置成该一个单元用于信号处理，从而生成轨道特定的再现信号; 以及相位对准装置，其被配置为将由记录装置记录的多个轨道中的相邻轨道之间的记录信号的相位对准到磁记录介质。

2. 发明授权

US07813066B2 Magnetic recording and reproduction method, recording apparatus, reproduction apparatus and magnetic recording medium 失效
标题翻译：磁记录和再现方法，记录装置，再现装置和磁记录介质
公开(公告)号：US07813066B2
公开(公告)日：2010-10-12
申请号：US11726233
申请日：2007-03-21
申请人： Toshiyuki Nakagawa , Hiroyuki Ino , Tomoyuki Hiura , Tomohiro Ikegami , Masaaki Hara , Norihito Mihota , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda
发明人： Toshiyuki Nakagawa , Hiroyuki Ino , Tomoyuki Hiura , Tomohiro Ikegami , Masaaki Hara , Norihito Mihota , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda
IPC分类号： G11B5/09
CPC分类号： G11B5/584 , G11B5/0083 , G11B5/00865
摘要： A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.
摘要翻译：磁记录和再现方法包括以下步骤：通过磁记录介质上的记录头将多个磁道记录在数据检测用信号处理单元上，并通过多个通过可以再现磁记录介质的多个轨道上的信号的再现头与轨道的不同位置关系的时间，收集单元中的再现信号，并且执行用于该单元的信号处理以产生用于个别曲目。

3. 发明授权

US07586705B2 Magnetic recording/reproducing apparatus and magnetic recording/reproducing method 失效
标题翻译：磁记录/再现装置和磁记录/再现方法
公开(公告)号：US07586705B2
公开(公告)日：2009-09-08
申请号：US11728305
申请日：2007-03-23
申请人： Tomoyuki Hiura , Hiroyuki Ino , Toshiyuki Nakagawa , Norihito Mihota , Tomohiro Ikegami , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda , Masaaki Hara
发明人： Tomoyuki Hiura , Hiroyuki Ino , Toshiyuki Nakagawa , Norihito Mihota , Tomohiro Ikegami , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda , Masaaki Hara
IPC分类号： G11B5/53
CPC分类号： G11B5/588 , G11B20/10009 , G11B20/22 , G11B27/3018 , G11B2220/90
摘要： A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.
摘要翻译：公开了一种磁记录/再现装置，其中使用再现头从多个记录道读出的再现信号可被分离成记录磁道的原始记录信号。在记录时，具有等于或大于最小记录波长的记录波长并且不使任何记录轨道与任何相邻记录轨道的干扰的识别信号被附加到记录信号并与记录信号一起记录允许在再现时获取关于磁记录介质的多个记录磁道的再现磁头的位置信息。在再现时，基于从记录轨道读取的位置信息产生用于磁记录介质的每个记录轨道的再现信号。

4. 发明授权

US07636219B2 Magnetic recording and reproducing apparatus and magnetic recording and reproducing method 失效
标题翻译：磁记录和再现装置以及磁记录和再现方法
公开(公告)号：US07636219B2
公开(公告)日：2009-12-22
申请号：US11732403
申请日：2007-04-03
申请人： Tomohiro Ikegami , Hiroyuki Ino , Toshiyuki Nakagawa , Tomoyuki Hiura , Norihito Mihota , Masaaki Hara , Yoshihiko Deoka , Hidetoshi Honda , Shinichi Fukuda
发明人： Tomohiro Ikegami , Hiroyuki Ino , Toshiyuki Nakagawa , Tomoyuki Hiura , Norihito Mihota , Masaaki Hara , Yoshihiko Deoka , Hidetoshi Honda , Shinichi Fukuda
IPC分类号： G11B15/18
CPC分类号： G11B20/22 , G11B5/0083 , G11B5/584 , G11B20/10009 , G11B2220/90
摘要： A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.
摘要翻译：公开了一种磁记录和再现装置，其包括：记录装置，被配置为以写入头记录构成用于数据检测的信号处理单元的多个轨道到磁记录介质; 一种再现装置，被配置为以与磁迹不同的位置关系从磁记录介质上的多个磁道同时以读头读出多个再现信号，再现信号被布置成该一个单元用于信号处理，从而生成轨道特定的再现信号; 以及相位对准装置，其被配置为将由记录装置记录的多个轨道中的相邻轨道之间的记录信号的相位对准到磁记录介质。

5. 发明申请

US20070242377A1 Magnetic recording/reproducing apparatus and magnetic recording/reproducing method 失效
标题翻译：磁记录/再现装置和磁记录/再现方法
公开(公告)号：US20070242377A1
公开(公告)日：2007-10-18
申请号：US11728305
申请日：2007-03-23
申请人： Tomoyuki Hiura , Hiroyuki Ino , Toshiyuki Nakagawa , Norihito Mihota , Tomohiro Ikegami , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda , Masaaki Hara
发明人： Tomoyuki Hiura , Hiroyuki Ino , Toshiyuki Nakagawa , Norihito Mihota , Tomohiro Ikegami , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda , Masaaki Hara
IPC分类号： G11B20/10
CPC分类号： G11B5/588 , G11B20/10009 , G11B20/22 , G11B27/3018 , G11B2220/90
摘要： A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.
摘要翻译：公开了一种磁记录/再现装置，其中使用再现头从多个记录道读出的再现信号可被分离成记录磁道的原始记录信号。在记录时，具有等于或大于最小记录波长的记录波长并且不使任何记录磁道与任何相邻记录磁道之间的干扰的识别信号被附加到记录信号并与记录信号一起记录允许在再现时获取关于磁记录介质的多个记录磁道的再现磁头的位置信息。在再现时，基于从记录轨道读取的位置信息产生用于磁记录介质的每个记录轨道的再现信号。

6. 发明申请

US20070242376A1 Magnetic recording and reproduction method, recording apparatus, reproduction apparatus and magnetic recording medium 失效
标题翻译：磁记录和再现方法，记录装置，再现装置和磁记录介质
公开(公告)号：US20070242376A1
公开(公告)日：2007-10-18
申请号：US11726233
申请日：2007-03-21
申请人： Toshiyuki Nakagawa , Hiroyuki Ino , Tomoyuki Hiura , Tomohiro Ikegami , Masaaki Hara , Norihito Mihota , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda
发明人： Toshiyuki Nakagawa , Hiroyuki Ino , Tomoyuki Hiura , Tomohiro Ikegami , Masaaki Hara , Norihito Mihota , Shinichi Fukuda , Yoshihiko Deoka , Hidetoshi Honda
IPC分类号： G11B20/10
CPC分类号： G11B5/584 , G11B5/0083 , G11B5/00865
摘要： A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.
摘要翻译：磁记录和再现方法包括以下步骤：通过磁记录介质上的记录头将多个磁道记录在数据检测用信号处理单元上，并通过多个通过可以再现磁记录介质的多个轨道上的信号的再现头与轨道的不同位置关系的时间，收集单元中的再现信号，并且执行用于该单元的信号处理以产生用于个别曲目。

7. 发明授权

US06356403B2 Rotary magnetic head apparatus having reproduction signal wiring, power-supply wiring and recording signal wiring sections in a rotor and a stator arranged in a predetermined manner 失效
标题翻译：旋转磁头装置，具有再现信号线，电源线和记录信号线路部分，转子和定子以预定方式布置
公开(公告)号：US06356403B2
公开(公告)日：2002-03-12
申请号：US09063323
申请日：1998-04-20
申请人： Tadashi Ozue , Toshio Shirai , Tomohiro Ikegami
发明人： Tadashi Ozue , Toshio Shirai , Tomohiro Ikegami
IPC分类号： G11B1514
CPC分类号： G11B15/14 , G11B15/12 , G11B2005/0016
摘要： A rotary magnetic head apparatus is provided which can be formed into a small size even if a plurality of reproduction heads are provided. The rotary magnetic head apparatus includes a rotary drum having a rotor of a transmission apparatus and a plurality of reproduction heads, a fixed drum having a stator of the transmission apparatus and a plurality of reproduction heads, a reproduction signal selection device for selecting a reproduction signal of an information recording medium, which signal is obtained by each of the reproduction heads and for arranging the reproduction signal in sequence, a rotor reproduction signal wiring section which is disposed in the rotor and to which is supplied the reproduction signal of each of the reproduction heads, which reproduction signal is sent from the reproduction signal selection device, and a stator reproduction signal wiring section, which is disposed in the stator, for receiving the reproduction signal from the rotor reproduction signal wiring section without contact.
摘要翻译：即使设置多个再现头，也可以设置能够形成小尺寸的旋转磁头装置。旋转磁头装置包括具有传动装置的转子和多个再现头的旋转鼓，具有传动装置的定子的固定鼓和多个再现头，用于选择再现信号的再现信号选择装置信息记录介质，该信号由每个再现头获得并用于依次布置再现信号;转子再生信号布线部，其设置在转子中并被提供给每个再现信号的再现信号头，从再现信号选择装置发送的再现信号，以及设置在定子中的用于从转子再生信号布线部分接收再现信号而不接触的定子再生信号布线部分。

8. 发明授权

US06304397B1 Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals 有权
标题翻译：磁记录/再现装置，具有带磁阻头的旋转磁鼓，用于转换无直流代码信号
公开(公告)号：US06304397B1
公开(公告)日：2001-10-16
申请号：US09319509
申请日：1999-08-02
申请人： Tadashi Ozue , Toshio Shirai , Takehiko Saito , Yoshiteru Kamatani , Tomohiro Ikegami
发明人： Tadashi Ozue , Toshio Shirai , Takehiko Saito , Yoshiteru Kamatani , Tomohiro Ikegami
IPC分类号： G11B502
CPC分类号： G11B5/53 , G11B5/0086 , G11B5/02 , G11B5/09 , G11B20/10 , G11B23/0007
摘要： A helical scan magnetic recording/reproducing apparatus incorporating an MR head to serve as a reproducing magnetic head is arranged to convert data which is recorded on a magnetic tape into data in the form of DC-free code trains. The magnetic recording/reproducing apparatus is provided with a high-pass filter for attenuating low-frequency components of a reproduced signal detected by the MR head. Moreover, a demodulating circuit is provided which demodulates data in a state before data is converted into the DC-free code trains from the reproduced signal, in which the low-frequency components have been attenuated by said high-pass filter. As a result, noise (thermal asperities) in a low-frequency region caused when the magnetic tape and the MR head are brought into contact with each other is removed so that a reproduced output free from excessive noise is obtained. The high-pass filter is, for example, a rotary transformer mounted on rotational drum.
摘要翻译：配置有用作再现磁头的MR磁头的螺旋扫描磁记录/再现装置被布置成将记录在磁带上的数据转换为无DC代码列的形式的数据。磁记录/再现装置设置有用于衰减由MR磁头检测到的再现信号的低频分量的高通滤波器。此外，提供一种解调电路，其解调从数据被转换成无DC码序列的状态的数据，再生信号中低频分量已被所述高通滤波器衰减。结果，去除了当磁带和MR磁头相互接触时引起的低频区域中的噪声（热粗糙度），从而获得没有过多噪声的再现输出。高通滤波器例如是安装在旋转滚筒上的旋转变压器。

9. 发明授权

US06429992B1 Non-contact type transmission device and rotary magnetic head unit having the non-contact type transmission device and a bias current control section 失效
标题翻译：具有非接触式传输装置和偏置电流控制部分的非接触型传输装置和旋转磁头装置
公开(公告)号：US06429992B1
公开(公告)日：2002-08-06
申请号：US09710021
申请日：2000-11-10
申请人： Tadashi Ozue , Toshio Shirai , Tomohiro Ikegami
发明人： Tadashi Ozue , Toshio Shirai , Tomohiro Ikegami
IPC分类号： G11B503
CPC分类号： G11B5/0086 , G11B5/53 , G11B5/584 , G11B15/125 , G11B23/0007 , G11B2005/0016 , G11B2005/0018
摘要： A rotary magnetic head unit has a non-contact type transmission device capable of reliably performing non-contact transmission both in signal and power supply systems and designed so as to be smaller in size. The non-contact type transmission device is formed of a rotating member and a fixed member each having a power supply wiring section for transmitting a power supply, a signal wiring section for transmitting a signal, and a crosstalk prevention section positioned between the power supply wiring section and the signal wiring section to prevent crosstalk between these sections. If a reproducing head formed of a magnetoresistive element is used by being supplied with a bias current from the power supply transmitted by the power supply wiring sections of the rotary and fixed members, the rotary magnetic head unit uses bias current control means section to change the bias current supplied to the reproducing head according to the amount of wear of the recording head during reproduction from signals from magnetic tapes.
摘要翻译：旋转磁头单元具有能够在信号和电源系统中可靠地执行非接触式传输的非接触式传输装置，并且设计成尺寸更小。非接触型传输装置由旋转部件和固定部件构成，所述旋转部件和固定部件具有用于传送电源的电源配线部，用于发送信号的信号线部分和位于电源配线部分和信号接线部分，以防止这些部分之间的串扰。如果通过从旋转和固定构件的电源配线部分传输的电源提供偏置电流来使用由磁阻元件形成的再现头，则旋转磁头单元使用偏置电流控制装置部分来改变根据来自磁带的信号在再现期间记录头的磨损量，向再现头提供偏置电流。

10. 发明授权

US06229662B1 Magnetic recording/reproducing apparatus and magnetic tape 失效
标题翻译：磁记录/再现装置和磁带
公开(公告)号：US06229662B1
公开(公告)日：2001-05-08
申请号：US09225423
申请日：1999-01-05
申请人： Tadashi Ozue , Toshio Shirai , Yoshiteru Kamatani , Takehiko Saito , Tomohiro Ikegami
发明人： Tadashi Ozue , Toshio Shirai , Yoshiteru Kamatani , Takehiko Saito , Tomohiro Ikegami
IPC分类号： G11B502
CPC分类号： G11B5/40 , G11B5/0086 , G11B5/78
摘要： A magnetic recording/reproducing apparatus of the helical scan system employing a MR head as a reproducing magnetic head. The magnetic recording/reproducing apparatus includes a MR head 6 and a rotary drum carrying the MR head 6. In reproducing signals from the magnetic tape 7 in accordance with the helical scan system, a magnetic tape 7, having a large number of projections 7c on the tape surface and containing an electrically conductive material in its magnetic layer, is used as a recording medium.
摘要翻译：一种使用MR头作为再现磁头的螺旋扫描系统的磁记录/重放装置。磁记录/再现装置包括MR磁头6和承载MR磁头6的旋转磁鼓。在根据螺旋扫描系统再现来自磁带7的信号时，具有大量突起7c的磁带7 胶带表面并在其磁性层中含有导电材料用作记录介质。

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