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1. 发明授权

US06661594B2 Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit 有权
标题翻译：信号处理电路和使用该信号的信息记录/再现装置，以及用于优化均衡器电路的系数的方法
公开(公告)号：US06661594B2
公开(公告)日：2003-12-09
申请号：US10277695
申请日：2002-10-23
申请人： Naoki Satoh , Seiichi Mita , Shoichi Miyazawa , Terumi Takashi , Yosuke Hori , Yoshiju Watanabe , Akihiko Hirano , Satoshi Minoshima , Hideki Miyasaka , Toshihiro Nitta , Tomoaki Hirai , Ryushi Shimokawa , Koji Shida , Yasuhide Ouchi
发明人： Naoki Satoh , Seiichi Mita , Shoichi Miyazawa , Terumi Takashi , Yosuke Hori , Yoshiju Watanabe , Akihiko Hirano , Satoshi Minoshima , Hideki Miyasaka , Toshihiro Nitta , Tomoaki Hirai , Ryushi Shimokawa , Koji Shida , Yasuhide Ouchi
IPC分类号： G11B535
CPC分类号： G11B20/10055 , G11B5/035 , G11B5/09 , G11B20/10009 , G11B20/10481
摘要： A signal processing circuit for a magnetic recording/reproducing apparatus, including at least an AGC, a PLL, a LPF, an equalizer circuit and a detection circuit, wherein a coefficient compensation circuit is formed by defining a constitution of the equalizer circuit, an error detection circuit is provided which operates by receiving input from the detection circuit, and the LSI is formed by a plurality of analog and digital chips, and the analog and digital chips are connected by current-output type D/A converters connected to at least the AGC and the PLL.
摘要翻译：一种用于至少包括AGC，PLL，LPF，均衡器电路和检测电路的磁记录/再现装置的信号处理电路，其中通过定义均衡器电路的结构形成系数补偿电路，错误提供检测电路，其通过接收来自检测电路的输入而工作，并且LSI由多个模拟和数字芯片形成，并且模拟和数字芯片通过电流输出型D / A转换器连接至少至少 AGC和PLL。

2. 发明授权

US5818655A Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit 失效
公开(公告)号：US5818655A
公开(公告)日：1998-10-06
申请号：US506635
申请日：1995-07-25
申请人： Naoki Satoh , Seiichi Mita , Shoichi Miyazawa , Terumi Takashi , Yosuke Hori , Yoshiju Watanabe , Akihiko Hirano , Satoshi Minoshima , Hideki Miyasaka , Toshihiro Nitta , Tomoaki Hirai , Ryushi Shimokawa , Koji Shida , Yasuhide Ouchi
发明人： Naoki Satoh , Seiichi Mita , Shoichi Miyazawa , Terumi Takashi , Yosuke Hori , Yoshiju Watanabe , Akihiko Hirano , Satoshi Minoshima , Hideki Miyasaka , Toshihiro Nitta , Tomoaki Hirai , Ryushi Shimokawa , Koji Shida , Yasuhide Ouchi
IPC分类号： G11B5/035 , G11B5/09 , G11B20/10
CPC分类号： G11B20/10055 , G11B20/10009 , G11B20/10481 , G11B5/035 , G11B5/09
摘要： A signal processing circuit for a magnetic recording/reproducing apparatus, including at least an AGC, a PLL, a LPF, an equalizer circuit and a detection circuit, wherein a coefficient compensation circuit is formed by defining a constitution of the equalizer circuit, an error detection circuit is provided which operates by receiving input from the detection circuit, and the LSI is formed by a plurality of analog and digital chips, and the analog and digital chips are connected by current-output type D/A converters connected to at least the AGC and the PLL.

3. 发明申请

US20120137166A1 STORAGE SYSTEM USING SAS STANDARD BACK-END COMMUNICATION 失效
标题翻译：使用SAS标准后端通信的存储系统
公开(公告)号：US20120137166A1
公开(公告)日：2012-05-31
申请号：US13000002
申请日：2010-11-30
申请人： Tomoaki Kurihara , Toshihiro Nitta
发明人： Tomoaki Kurihara , Toshihiro Nitta
IPC分类号： G06F3/00 , G06F11/16 , G06F13/00
CPC分类号： G06F11/201 , G06F11/2005 , G06F11/2089
摘要： Each of SAS expanders (“expander(s)” hereinafter) has a switch device for switching whether to bypass the expander in each communication path or not. Of the plurality of switch devices, an actual connection destination of a switch device bypassing the expander is a switch device in a upper-level and/or a lower-level of the switch device. Of the plurality of switch devices, an actual connection destination of a switch device that does not bypass an expander is the expander.
摘要翻译： SAS扩展器（以下称为“扩展器”）具有用于切换是否绕过每个通信路径中的扩展器的开关装置。在多个开关装置中，绕开扩展器的开关装置的实际连接目的地是开关装置的上层和/或下层的开关装置。在多个交换机装置中，不绕过扩展器的交换机的实际连接目的地是扩展器。

4. 发明授权

US08307157B2 Disk array system and traffic control method 有权
标题翻译：磁盘阵列系统和流量控制方法
公开(公告)号：US08307157B2
公开(公告)日：2012-11-06
申请号：US12741438
申请日：2010-04-21
申请人： Yuki Sakuma , Toshihiro Nitta , Midori Kurokawa
发明人： Yuki Sakuma , Toshihiro Nitta , Midori Kurokawa
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F11/00
CPC分类号： G06F11/0727
摘要： Proposed are a disk array system and a traffic control method with which reliability can be improved by preventing system shutdown. A disk array system comprises a controller for controlling data I/O to and from a backend unit; a plurality of expanders provided in the backend unit and connected to the controller by way of a tree-structure topology; a plurality of storage devices provided in the backend unit and each connected to the corresponding expander; and a control unit for controlling the controller on the basis of an I/O request from a host device. The disk array system is configured such that the controller notifies the control unit of a link fault that has occurred in the backend unit, and the control unit, when supplied with the link fault notification from the controller, restricts issuance of I/O requests from the host device or restricts receipt of I/O requests sent from the host device as necessary.
摘要翻译：提出了一种磁盘阵列系统和一种流量控制方法，可以通过防止系统关闭来提高可靠性。磁盘阵列系统包括用于控制来自后端单元的数据I / O的控制器; 多个扩展器，设置在后端单元中，并通过树形结构拓扑连接到控制器; 设置在所述后端单元中并且各自连接到相应的扩展器的多个存储装置; 以及控制单元，用于基于来自主机设备的I / O请求来控制控制器。磁盘阵列系统被配置为使得控制器向控制单元通知在后端单元中发生的链路故障，并且当从控制器提供链路故障通知时，控制单元限制I / O请求的发出主机设备或根据需要限制从主机设备发送的I / O请求的接收。

5. 发明申请

US20120233399A1 STORAGE APPARATUS AND METHOD OF CONTROLLING THE SAME 审中-公开
标题翻译：存储装置及其控制方法
公开(公告)号：US20120233399A1
公开(公告)日：2012-09-13
申请号：US13120346
申请日：2011-03-09
申请人： Midori Kurokawa , Toshihiro Nitta
发明人： Midori Kurokawa , Toshihiro Nitta
IPC分类号： G06F12/00
CPC分类号： H04L12/4625 , G06F3/0601 , G06F2003/0692
摘要： The present invention aims to improve the performance of a storage apparatus.A controller of a storage apparatus stores therein for each piece of information indicating a communication rate in association with identification of the information piece, and performs speed negotiation for setting a communication rate with an expander upon detecting that coupling to the expander via a communication path has been established. The expander transmits identification information associated with its own maximum communication rate to the controller. The controller acquires the maximum communication rate of the expander on the basis of the identification information, obtains an expected value of the communication rate with the expander on the basis of the maximum communication rate of the expander and the maximum communication rate of the controller, and compares the communication rate set by the speed negotiation with the expected value.
摘要翻译：本发明旨在提高存储装置的性能。存储装置的控制器在其中存储表示与信息片段的识别相关联的通信速率的每条信息，并且在检测到经由通信路径与扩展器的耦合具有的扩展器中进行速度协商以设置与扩展器的通信速率成立扩展器将与其自身的最大通信速率相关联的识别信息发送到控制器。控制器基于识别信息获取扩展器的最大通信速率，根据扩展器的最大通信速率和控制器的最大通信速率获得与扩展器的通信速率的期望值，以及将通过速度协商设置的通信速率与期望值进行比较。

6. 发明授权

US08631282B2 Storage system using SAS standard back-end communication 失效
标题翻译：存储系统采用SAS标准的后端通信
公开(公告)号：US08631282B2
公开(公告)日：2014-01-14
申请号：US13000002
申请日：2010-11-30
申请人： Tomoaki Kurihara , Toshihiro Nitta
发明人： Tomoaki Kurihara , Toshihiro Nitta
IPC分类号： G06F11/00
CPC分类号： G06F11/201 , G06F11/2005 , G06F11/2089
摘要： Each of SAS expanders (“expander(s)” hereinafter) has a switch device for switching whether to bypass the expander in each communication path or not. Of the plurality of switch devices, an actual connection destination of a switch device bypassing the expander is a switch device in a upper-level and/or a lower-level of the switch device. Of the plurality of switch devices, an actual connection destination of a switch device that does not bypass an expander is the expander.
摘要翻译： SAS扩展器（以下称为“扩展器”）具有用于切换是否绕过每个通信路径中的扩展器的开关装置。在多个开关装置中，绕开扩展器的开关装置的实际连接目的地是开关装置的上层和/或下层的开关装置。在多个交换机装置中，不绕过扩展器的交换机的实际连接目的地是扩展器。

7. 发明申请

US20120047325A1 DISK ARRAY SYSTEM AND TRAFFIC CONTROL METHOD 有权
标题翻译：磁盘阵列系统和交通控制方法
公开(公告)号：US20120047325A1
公开(公告)日：2012-02-23
申请号：US12741438
申请日：2010-04-21
申请人： Yuki Sakuma , Toshihiro Nitta , Midori Kurokawa
发明人： Yuki Sakuma , Toshihiro Nitta , Midori Kurokawa
IPC分类号： G06F12/00
CPC分类号： G06F11/0727
摘要： Proposed are a disk array system and a traffic control method with which reliability can be improved by preventing system shutdown. A disk array system comprises a controller for controlling data I/O to and from a backend unit; a plurality of expanders provided in the backend unit and connected to the controller by way of a tree-structure topology; a plurality of storage devices provided in the backend unit and each connected to the corresponding expander; and a control unit for controlling the controller on the basis of an I/O request from a host device. The disk array system is configured such that the controller notifies the control unit of a link fault that has occurred in the backend unit, and the control unit, when supplied with the link fault notification from the controller, restricts issuance of I/O requests from the host device or restricts receipt of I/O requests sent from the host device as necessary.
摘要翻译：提出了一种磁盘阵列系统和一种流量控制方法，可以通过防止系统关闭来提高可靠性。磁盘阵列系统包括用于控制来自后端单元的数据I / O的控制器; 多个扩展器，设置在后端单元中，并通过树形结构拓扑连接到控制器; 设置在所述后端单元中并且各自连接到相应的扩展器的多个存储装置; 以及控制单元，用于基于来自主机设备的I / O请求来控制控制器。磁盘阵列系统被配置为使得控制器向控制单元通知在后端单元中发生的链路故障，并且当从控制器提供链路故障通知时，控制单元限制I / O请求的发出主机设备或根据需要限制从主机设备发送的I / O请求的接收。

8. 发明授权

US07279810B2 Storage system and controlling method therefor 失效
标题翻译：存储系统及其控制方法
公开(公告)号：US07279810B2
公开(公告)日：2007-10-09
申请号：US11165290
申请日：2005-06-24
申请人： Toshihiro Nitta
发明人： Toshihiro Nitta
IPC分类号： H02J7/00 , G06F11/00 , G06F1/00
CPC分类号： G11B19/047 , Y10T307/615
摘要： With a storage system including a drive and a controller, which are connected to each other via cables, and with a method for controlling the storage system, an emergency power supply voltage for a power failure at the drive is multiplexed at the controller with a first signal to be sent to the drive, and the resultant emergency power supply voltage is sent via the cable to the drive. When a power failure occurs at the drive, the drive is powered with the emergency power supply voltage sent from the controller, and specified power failure information is multiplexed at the drive with a second signal to be sent to the controller, and the resultant power failure information is then sent via the cable to the controller; and specified processing is executed at the controller in response to the power failure information sent from the drive via the cable. Accordingly, it is possible to realize a storage system and the controlling method therefor that are adequate for practical applications and can sufficiently cope with drive power failures without the need for complication and upsizing of the entire system configuration.
摘要翻译：通过包括通过电缆彼此连接的驱动器和控制器的存储系统，并且利用用于控制存储系统的方法，用于驱动器处的电力故障的应急电源电压在控制器处被复用为第一信号被发送到驱动器，并且所得到的应急电源电压经由电缆发送到驱动器。当驱动器发生电源故障时，变频器由控制器发出的应急电源电压供电，并且指定的电源故障信息在驱动器处被多路复用到要发送给控制器的第二个信号，并导致停电然后通过电缆将信息发送到控制器; 并且响应于从驱动器经由电缆发送的电力故障信息，在控制器处执行指定的处理。因此，可以实现适用于实际应用的存储系统及其控制方法，并且可以充分地应对驱动电源故障，而不需要整个系统配置的复杂化和大型化。

9. 发明申请

US20060238032A1 Storage system and controlling method therefor 失效
标题翻译：存储系统及其控制方法
公开(公告)号：US20060238032A1
公开(公告)日：2006-10-26
申请号：US11165290
申请日：2005-06-24
申请人： Toshihiro Nitta
发明人： Toshihiro Nitta
IPC分类号： H02J9/00
CPC分类号： G11B19/047 , Y10T307/615
摘要： With a storage system including a drive and a controller, which are connected to each other via cables, and with a method for controlling the storage system, an emergency power supply voltage for a power failure at the drive is multiplexed at the controller with a first signal to be sent to the drive, and the resultant emergency power supply voltage is sent via the cable to the drive. When a power failure occurs at the drive, the drive is powered with the emergency power supply voltage sent from the controller, and specified power failure information is multiplexed at the drive with a second signal to be sent to the controller, and the resultant power failure information is then sent via the cable to the controller; and specified processing is executed at the controller in response to the power failure information sent from the drive via the cable. Accordingly, it is possible to realize a storage system and the controlling method therefor that are adequate for practical applications and can sufficiently cope with drive power failures without the need for complication and upsizing of the entire system configuration.
摘要翻译：通过包括通过电缆彼此连接的驱动器和控制器的存储系统，并且利用用于控制存储系统的方法，用于驱动器处的电力故障的应急电源电压在控制器处被复用为第一信号被发送到驱动器，并且所得到的应急电源电压经由电缆发送到驱动器。当驱动器发生电源故障时，变频器由控制器发出的应急电源电压供电，并且指定的电源故障信息在驱动器处被多路复用到要发送给控制器的第二个信号，并导致停电然后通过电缆将信息发送到控制器; 并且响应于从驱动器经由电缆发送的电力故障信息，在控制器处执行指定的处理。因此，可以实现适用于实际应用的存储系统及其控制方法，并且可以充分地应对驱动电源故障，而不需要整个系统配置的复杂化和大型化。

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