Generating system including generator having permanent magnet
    1.
    发明授权
    Generating system including generator having permanent magnet 失效
    包括具有永久磁铁的发电机的发电系统

    公开(公告)号:US6043632A

    公开(公告)日:2000-03-28

    申请号:US869888

    申请日:1997-06-05

    摘要: A permanent magnet made of ferrite magnet material used for a generator may be irreversibly demagnetized by a factor such as current supplied to a field coil, temperature of the permanent magnet and/or output current of an armature coil. When the field current exceeds a preset value, and also the output current exceeds a preset value, the field current is limited to prevent the irreversible demagnetization. Thus, the irreversible demagnetization of the permanent magnet can be prevented, while ensuring a sufficient amount of the output power. It is also effective that the field current or armature current is limited when the temperature of the permanent magnet is in a range of possible irreversible demagnetization.

    摘要翻译: 用于发电机的由铁氧体磁铁材料制成的永磁体可以通过提供给励磁线圈的电流,永磁体的温度和/或电枢线圈的输出电流等因素而不可逆地消磁。 当励磁电流超过预设值,并且输出电流也超过预设值时,励磁电流受到限制,以防止不可逆的退磁。 因此,在确保足够的输出功率的情况下,可以防止永久磁铁的不可逆退磁。 当永磁体的温度处于可逆不可逆退磁的范围内时,励磁电流或电枢电流受到限制也是有效的。

    Vehicular electric power generating system
    2.
    发明授权
    Vehicular electric power generating system 失效
    车辆发电系统

    公开(公告)号:US5754031A

    公开(公告)日:1998-05-19

    申请号:US691144

    申请日:1996-08-01

    IPC分类号: H02P9/10 H02P9/08 H02P9/14

    CPC分类号: H02P9/08

    摘要: The rotor of a generator is provided with permanent magnets to ensure start-up of electricity generation without externally supplied field current after a vehicle engine starts. When the generation is detected, the external field current is supplied from a battery so that the battery is charged by the generator, thereby to prevent battery discharge in a low speed range.

    摘要翻译: 发电机的转子设置有永磁体,以确保在发动机起动之后没有外部提供的励磁电流的发电启动。 当检测到发电时,从电池供给外部电流,使得电池被发电机充电,从而防止电池在低速范围内放电。

    Vehicle power generating apparatus
    4.
    发明授权
    Vehicle power generating apparatus 失效
    车辆发电装置

    公开(公告)号:US5767636A

    公开(公告)日:1998-06-16

    申请号:US593916

    申请日:1996-01-30

    CPC分类号: H02J7/1446 Y02T10/92

    摘要: To provide a vehicle power generating apparatus capable of transmitting plural kinds of control signals from an external control device to a generated voltage control unit provided in a generator for power generation control while curbing increases in the size of apparatus or wiring required and without degrading the noise reduction characteristics, a generated voltage control device is normally disposed integrally with a generator for maintaining the generated voltage at a predetermined target level. For transmission of a vehicle condition signal from an external control device to the generated voltage control device, the vehicle condition signal is converted into a binary pulse train signal before being transmitted. The generated voltage control device holds the binary pulse train signal received or a vehicle condition signal decoded from the binary pulse signal until the next reception. Thereby, complicated power generation control can be achieved with a small amount of communications.

    摘要翻译: 为了提供一种车辆发电装置,其能够将控制信号从外部控制装置发送到设置在发电机的发电机中的发电电压控制单元,同时抑制所需要的装置或布线尺寸的增加,并且不降低噪声 通常,发电电压控制装置与发电机一体地设置,用于将发电电压维持在规定的目标电平。 为了将车辆状态信号从外部控制装置发送到生成的电压控制装置,车辆状态信号在发送之前被转换为二进制脉冲序列信号。 所生成的电压控制装置保持接收的二进制脉冲序列信号或从二进制脉冲信号解码的车辆状态信号直到下次接收。 因此,可以通过少量通信来实现复杂的发电控制。

    Servo mark detection device
    5.
    发明授权
    Servo mark detection device 失效
    伺服标记检测装置

    公开(公告)号:US6014276A

    公开(公告)日:2000-01-11

    申请号:US995939

    申请日:1997-12-22

    申请人: Yasuhiro Takase

    发明人: Yasuhiro Takase

    CPC分类号: G11B5/59688 G11B27/3027

    摘要: A servo mark detection device includes a synchronizing circuit, first and second shift registers, a frame pattern detection circuit, a control circuit, and a servo mark comparator. The synchronizing circuit detects a peak of the signal amplitude of a data pattern and outputs a synchronization data signal synchronized with a clock. The first shift register sequentially stores the synchronization data signal and outputs a latch data signal. The detection circuit determines the frame pattern of the latch data signal, outputs a determination data signal, determines a phase shift of the latch data signal with respect to the clock, and outputs a phase correction signal. The control circuit outputs a frame pulse signal at a predetermined clock period, outputs a frame pulse signal at a timing corrected with respect to the predetermined clock period on the basis of the phase correction signal, and outputs a check window signal when a predetermined number of frame pulse signals are output. The second shift register sequentially latches the determination data signal in synchronism with the frame pulse signal, and outputs a servo mark data signal. The comparator compares the servo mark signal with a predetermined reference pattern when the check window signal is active, and outputs a servo mark detection signal.

    摘要翻译: 伺服标记检测装置包括同步电路,第一和第二移位寄存器,帧图案检测电路,控制电路和伺服标记比较器。 同步电路检测数据模式的信号幅度的峰值,并输出与时钟同步的同步数据信号。 第一移位寄存器顺序地存储同步数据信号并输出​​锁存数据信号。 检测电路确定锁存数据信号的帧模式,输出确定数据信号,确定锁存数据信号相对于时钟的相移,并输出相位校正信号。 控制电路以预定的时钟周期输出帧脉冲信号,根据相位校正信号在相对于预定时钟周期校正的定时输出帧脉冲信号,并且当预定数量的 输出帧脉冲信号。 第二移位寄存器顺序地与帧脉冲信号锁存确定数据信号,并输出伺服标记数据信号。 当检查窗信号有效时,比较器将伺服标记信号与预定参考图案进行比较,并输出伺服标记检测信号。

    Sector pulse generating apparatus for multiple zone recording of a disk
memory
    6.
    发明授权
    Sector pulse generating apparatus for multiple zone recording of a disk memory 失效
    扇区脉冲发生装置,用于磁盘存储器的多区记录

    公开(公告)号:US5539795A

    公开(公告)日:1996-07-23

    申请号:US497893

    申请日:1995-07-03

    申请人: Yasuhiro Takase

    发明人: Yasuhiro Takase

    CPC分类号: G11B21/085

    摘要: A sector pulse generating apparatus for multiple zone recording includes only first and second counters. The first counter counts reference clock pulses and outputs a present position signal. The second counter is incremented in response to a increment signal and outputs a next sector number signal. A first register stores the sector length of a zone in which a head is located. A multiplier outputs a next sector position signal representative of a multiplication of the next sector number and the sector length. A first comparator compares the magnitude of the present position and the next sector position. When the present position and the next sector position match, a sector pulse generating device generates a sector pulse and a first increment device outputs the increment signal.

    摘要翻译: 用于多区记录的扇区脉冲产生装置仅包括第一和第二计数器。 第一计数器对参考时钟脉冲进行计数并输出当前位置信号。 第二计数器响应于增量信号递增,并输出下一个扇区号信号。 第一个寄存器存储头部所在区域的扇区长度。 乘法器输出表示下一扇区号与扇区长度相乘的下一个扇区位置信号。 第一比较器比较当前位置的大小和下一个扇区位置。 当当前位置和下一扇区位置匹配时,扇区脉冲产生装置产生扇区脉冲,第一增量装置输出增量信号。

    Data storage method and data storage device
    8.
    发明授权
    Data storage method and data storage device 失效
    数据存储方法和数据存储设备

    公开(公告)号:US07530009B2

    公开(公告)日:2009-05-05

    申请号:US11530195

    申请日:2006-09-08

    IPC分类号: H03M13/00

    CPC分类号: G11B20/1833 G11B2220/2516

    摘要: A data storage device comprising a disk storage medium containing user data in a plurality of sectors wherein each of the plurality of sectors comprises a subdivision of a track, a head for writing or reading the user data and error correcting means for correcting an error that occurs in the user data during the reading process. The error correcting means comprises a syndrome generator for generating syndromes on the basis of the user data, a Euclid circuit, a chien search circuit and a verification circuit, and makes the error correction using a first error correcting code appended to each of a plurality of sectors and a second error correcting code appended to said sector for every block composed of a predetermined number of sectors.

    摘要翻译: 一种数据存储装置,包括:磁盘存储介质,其包含多个扇区中的用户数据,其中所述多个扇区中的每一个包括磁道的细分,写入或读取用户数据的磁头以及用于校正发生的错误的纠错装置 在读取过程中的用户数据。 误差校正装置包括用于基于用户数据产生校正子的校正子发生器,欧几里德电路,检索电路和验证电路,并且使用附加到多个 扇区和由预定数量的扇区组成的每个块附加到所述扇区的第二纠错码。

    Power generation controller
    9.
    发明申请
    Power generation controller 有权
    发电控制器

    公开(公告)号:US20060232247A1

    公开(公告)日:2006-10-19

    申请号:US11373123

    申请日:2006-03-13

    IPC分类号: H02J7/00

    CPC分类号: H02P9/006 H02J7/166 H02P9/305

    摘要: The power generation controller, which is for regulating an output voltage of a vehicle generator or a battery voltage of a vehicle battery charged by the vehicle generator by controlling an excitation current flowing into an excitation winding of the vehicle generator, includes a switching element connected in series between an output terminal of the vehicle generator and the excitation winding, a voltage control circuit on/off controlling the switching element such that one of the output voltage of the vehicle generator and the battery voltage is kept at a target voltage, and a contact abnormality detector circuit detecting a voltage of the output terminal as the output voltage of the vehicle generator, and detecting abnormality in a contact state between the power generation controller and the output terminal on the basis of the detected output voltage of the vehicle generator.

    摘要翻译: 用于通过控制流入车辆发电机的励磁绕组的励磁电流来调节车辆发电机的输出电压或由车辆发电机充电的车辆电池的电池电压的发电控制器包括: 串联在车辆发电机的输出端子和励磁绕组之间,电压控制电路对开关元件进行开/关控制,使得车辆发电机的输出电压和电池电压之一保持在目标电压,并且接点 检测作为车辆发电机的输出电压的输出端子的电压的异常检测电路,根据检测到的车辆发电机的输出电压,检测发电控制器与输出端子的接触状态的异常。

    Data storage device and error correction method
    10.
    发明申请
    Data storage device and error correction method 审中-公开
    数据存储装置和纠错方法

    公开(公告)号:US20080016429A1

    公开(公告)日:2008-01-17

    申请号:US11787109

    申请日:2007-04-12

    IPC分类号: G11C29/00

    摘要: Embodiments in accordance with the present invention increase the reliability of a data storage device, and to reduce the circuit size. According to one embodiment of the present invention, a hard disk drive (HDD) executes not only error correction processing of data to be written to a magnetic disk, but also error correction processing of data stored in the DRAM. In the HDD according to this embodiment, one SRAM is shared by both kinds of error correction processing. As a result of executing the error correction processing of the data stored in the DRAM, the reliability of the HDD is improved. In addition, by using the same SRAM for the two kinds of error correction processing that differ from each other, it is possible to suppress the increase in circuit size.

    摘要翻译: 根据本发明的实施例增加了数据存储装置的可靠性,并且减小了电路尺寸。 根据本发明的一个实施例,硬盘驱动器(HDD)不仅执行要写入磁盘的数据的纠错处理,还执行存储在DRAM中的数据的错误校正处理。 在根据本实施例的HDD中,通过两种错误校正处理来共享一个SRAM。 作为对存储在DRAM中的数据进行纠错处理的结果,提高了HDD的可靠性。 此外,通过对于彼此不同的两种纠错处理使用相同的SRAM,可以抑制电路尺寸的增加。