Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    51.
    发明授权
    Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data 失效
    用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置

    公开(公告)号:US07196999B2

    公开(公告)日:2007-03-27

    申请号:US09814379

    申请日:2001-03-21

    IPC分类号: G11B5/09

    摘要: A method and apparatus for recording or reproducing data in which high performance encoding and a high efficiency decoding are realized to lower the decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes, in a recording system, a modulation encoder 52 for modulation encoding input data in a predetermined fashion and an interleaver 53 for interleaving data supplied from the modulation encoder 52 to re-array the data sequence. The magnetic recording and/or reproducing apparatus 50 also includes, in a reproducing system, a first deinterleaver for interleaving the input data for re-arraying the data sequence so that the bit sequence of data re-arrayed by the interleaver 53 will be restored to its original bit sequence, a modulation SISO decoder for modulation decoding data supplied from the first deinterleaver and a second deinterleaver for interleaving data corresponding to a difference value between data output by the modulation SISO decoder and data output by the first deinterleaver to re-array the data sequence of the difference data.

    摘要翻译: 用于记录或再现其中实现高性能编码和高效率解码以降低解码错误率的数据的方法和装置。 磁记录和/或再现装置50在记录系统中包括用于以预定方式对输入数据进行调制编码的调制编码器52和用于交织从调制编码器52提供的数据的交织器53以重新排列数据序列。 磁记录和/或再现装置50还包括在再现系统中的第一解交织器,用于交织用于重新排列数据序列的输入数据,使得由交织器53重新排列的数据的位序列将被恢复到 其原始比特序列,用于从第一去交织器提供的调制解码数据的调制SISO解码器和用于对应于由调制SISO解码器输出的数据与由第一解交织器输出的数据之间的差值相对应的数据的第二解交织器,用于重新排列 差异数据的数据序列。

    Decoding apparatus and method and program
    52.
    发明申请
    Decoding apparatus and method and program 有权
    解码装置及方法及程序

    公开(公告)号:US20060190799A1

    公开(公告)日:2006-08-24

    申请号:US11344048

    申请日:2006-02-01

    IPC分类号: H03M13/00

    摘要: A decoding apparatus and method is disclosed by which the decoder error occurrence probability is suppressed and a high decoding performance can be achieved. An ABP decoding apparatus diagonalizes a parity check matrix, updates LLR values, decodes the LLR values and then adds a decoded word obtained by the decoding to a decoded word list. The ABP decoding apparatus repeats the decoding procedure as inner repetitive decoding by a predetermined number of times. Further, as the ABP decoding apparatus successively changes initial values for priority ranks of the LLR values, it repeats the inner repetitive decoding as outer repetitive decoding by a predetermined number of times. Then, the ABP decoding apparatus selects an optimum one of the decoded words from within a decoded word list obtained by the repeated inner repetitive decoding. The invention is applied to an error correction system.

    摘要翻译: 公开了一种解码装置和方法,通过该解码装置和方法抑制了解码器错误发生概率并且可以实现高解码性能。 ABP解码装置将奇偶校验矩阵对角化,更新LLR值,解码LLR值,然后将通过解码获得的解码字添加到解码字列表。 ABP解码装置将解码过程作为内部重复解码重复预定次数。 此外,当ABP解码装置连续地改变LLR值的优先级的初始值时,将内部重复解码重复预定次数的外部重复解码。 然后,ABP解码装置从通过重复的内部重复解码获得的解码字列表内选择最佳一个解码字。 本发明应用于纠错系统。

    Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data
    53.
    发明授权
    Method and apparatus for reproducing data and method and apparatus for recording and/or reproducing data 失效
    用于再现数据的方法和装置,用于记录和/或再现数据的方法和装置

    公开(公告)号:US06744580B2

    公开(公告)日:2004-06-01

    申请号:US09814429

    申请日:2001-03-21

    IPC分类号: G11B509

    摘要: A magnetic recording and/or reproducing apparatus performing efficient decoding to lower a decoding error rate. A magnetic recording and/or reproducing apparatus 50 includes a modulation SISO decoder 63 for modulation decoding data modulation-encoded in a predetermined fashion by a modulation coder 52. In the magnetic recording and/or reproducing apparatus 50, the modulation SISO decoder 63 is a soft input soft output (SISO) type modulation decoder fed with a soft input signal and issuing a soft output signal. The modulation SISO decoder 63 is fed with a trellis soft output signal D64 supplied from a trellis SISO decoder 62 to find a soft decision value for an error correction coding data D52 fed to the modulation coder 52 of the recording system to generate a modulated soft decision signal D65. The modulation SISO decoder 63 routes the so-generated modulated soft decision signal D65 to a downstream side error correction soft decoder 64.

    摘要翻译: 执行有效解码以降低解码错误率的磁记录和/或再现装置。 磁记录和/或再现装置50包括调制SISO解码器63,用于通过调制编码器52以预定的方式调制对数据进行调制解码。在磁记录和/或再现装置50中,调制SISO解码器63是 软输入软输出(SISO)型调制解码器,输入软输入信号并发出软输出信号。 调制SISO解码器63馈送有从网格SISO解码器62提供的网格软输出信号D64,以找到馈送到记录系统的调制编码器52的纠错编码数据D52的软判决值,以产生调制软判决 信号D65。 调制SISO解码器63将所生成的调制软判决信号D65路由到下游侧纠错软解码器64。

    Locking device for shift mechanism of an automotive power transmission
system
    54.
    发明授权
    Locking device for shift mechanism of an automotive power transmission system 失效
    汽车动力传动系统换档机构锁定装置

    公开(公告)号:US3958658A

    公开(公告)日:1976-05-25

    申请号:US505460

    申请日:1974-09-12

    摘要: The shift mechanism of an automotive power transmission system is locked in the neutral or parking position by a locking device which is responsive to completion or incompletion of a prescribed manipulative procedure to render a safety device such as a safety belt arrangement into a proper protective position, the locking device including a cam movable with any suitable member of the shift mechanism and a catch member which is moved into locking engagement with the cam if the prescribed manipulative steps to move the safety device into the proper protective position is incomplete.

    摘要翻译: 汽车动力传动系统的换档机构通过锁定装置锁定在中立或停车位置,所述锁定装置响应于完成或不完成规定的操纵过程以使诸如安全带装置的安全装置成为适当的保护位置, 所述锁定装置包括可移动所述换档机构的任何合适构件的凸轮和如果将所述安全装置移动到适当的保护位置中的所述规定的操纵步骤,则所述卡扣构件被移动成与所述凸轮锁定接合。

    Decoding method and device for decoding linear code
    55.
    发明授权
    Decoding method and device for decoding linear code 失效
    解码方法和解码线性码的装置

    公开(公告)号:US07607063B2

    公开(公告)日:2009-10-20

    申请号:US10523452

    申请日:2004-05-28

    IPC分类号: H03M13/00

    摘要: The present invention relates to a decoding method and a decoder, a program, a recording-and-reproducing apparatus and a method, and a reproducing apparatus and a method that are suitable for decoding encoded data encoded by using a linear code on ring R. A low-density processing unit performs parity-check-matrix low-density processing, performs linear combination for rows of a parity check matrix included in an obtained reception word, and generates a parity check matrix according to the linear-combination result, thereby reducing the density of the parity check matrix used for decoding, at step S21. Then, at step S22, an LDPC decoding unit performs decoding by using a sum product algorithm (SPA) by using the parity check matrix whose density is reduced through the processing performed at step S21. Where the processing at step S22 is finished, the LDPC decoding unit finishes decoding for the reception word. The present invention can be used for an error-correction system.

    摘要翻译: 本发明涉及适用于对通过使用环R上的线性码编码的编码数据进行解码的解码方法和解码器,程序,记录和再现装置和方法以及再现装置和方法。 低密度处理单元进行奇偶校验矩阵低密度处理,对获得的接收字中包含的奇偶校验矩阵的行进行线性组合,并根据线性组合结果生成奇偶校验矩阵,从而减少 在步骤S21中用于解码的奇偶校验矩阵的密度。 然后,在步骤S22,LDPC解码单元通过使用通过在步骤S21执行的处理而减小密度的奇偶校验矩阵,通过使用和积算法(SPA)进行解码。 在步骤S22的处理完成的情况下,LDPC解码单元完成对接收字的解码。 本发明可以用于纠错系统。

    Decoding device and method, program recording medium, and program using modulation code encoded in accordance with a variable length table
    56.
    发明授权
    Decoding device and method, program recording medium, and program using modulation code encoded in accordance with a variable length table 失效
    解码装置和方法,程序记录介质和使用根据可变长度表编码的调制码的程序

    公开(公告)号:US07388525B2

    公开(公告)日:2008-06-17

    申请号:US10532858

    申请日:2004-07-05

    IPC分类号: H03M7/40

    摘要: The present invention relates to a decoding apparatus and method, a program storage medium, and a program, which allow high-performance decoding of a modulation code encoded in accordance with a variable-length table. A 17PP-SISO decoder 181 performs SISO decoding on a signal supplied from a PR-SISO decoder 81 by using a Viterbi decoding algorithm or a BCJR decoding algorithm in accordance with a trellis represented by paths corresponding, in a one-to-one fashion, to overall transitions in an entire encoding process in accordance with an encoding table 201 of a 17PP code. A resultant SISO-decoded signal is supplied to a turbo decoder 84 via a deinterleaver 83. The turbo decoder 84 performs turbo decoding on the signal output from the 17PP-SISO decoder 181. The present invention can be applied to a recording/reproducing apparatus for recording/reproducing a signal on/from a storage medium such as a high-density optical disk.

    摘要翻译: 本发明涉及一种解码装置和方法,程序存储介质和程序,其允许根据可变长度表编码的调制码的高性能解码。 17PP-SISO解码器181通过使用维特比解码算法或BCJR解码算法对由PR-SISO解码器81提供的信号执行SISO解码,所述维特比解码算法或BCJR解码算法根据以一对一的方式对应的路径表示, 涉及根据17PP码的编码表201的整个编码处理中的整体转换。 经解交织器83将结果SISO解码信号提供给turbo解码器84。 turbo解码器84对从17PP-SISO解码器181输出的信号进行turbo解码。 本发明可以应用于用于在诸如高密度光盘的存储介质上记录/再现信号的记录/再现装置。

    Decoder and decoding method
    57.
    发明授权
    Decoder and decoding method 失效
    解码和解码方法

    公开(公告)号:US07055089B2

    公开(公告)日:2006-05-30

    申请号:US09876742

    申请日:2001-06-07

    IPC分类号: H03M13/03

    摘要: A decoding system and method for providing relatively high likelihood of obtaining at least two paths of getting to each decoding state from at least three paths. The system and method also selects a maximum likelihood path from the two paths, where a log likelihood of getting to a state in the decoder is determined by a soft-input value encoded with a trellis so as to provide at least three paths for getting to the state.

    摘要翻译: 一种解码系统和方法,用于从至少三个路径提供获得至少两个到达每个解码状态的路径的相对较高的可能性。 系统和方法还从两个路径中选择最大似然路径,其中达到解码器中的状态的对数似然性由格网编码的软输入值确定,以便提供至少三条路径以便达到 国家。

    Hydraulic system for an automatic power transmission
    58.
    发明授权
    Hydraulic system for an automatic power transmission 失效
    液压系统,用于自动动力传动

    公开(公告)号:US4020718A

    公开(公告)日:1977-05-03

    申请号:US553324

    申请日:1975-02-26

    摘要: A hydraulic system for an automatic power transmission of a motor vehicle and adapted for preventing creep of the motor vehicle when the vehicle comes to a complete halt. The hydraulic system includes a first shift valve responsive to throttle pressure and governor pressure to control supply of line pressure into servo means for actuating a friction element to provide lower gear reduction ratio, and a second shift valve responsive to released condition of an accelerator pedal of the vehicle for supplying line pressure into a governor pressure port of the first shift valve, whereby the first shift valve is moved in dependence on throttle pressure and line pressure into a position to supply line pressure into the servo means for thereby effecting shift into the lower gear reduction ratio in the power transmission. The hydraulic system may further include a third shift valve responsive to fully depressed condition of the accelerator pedal to supply line pressure into the first shift valve to apply line pressure thereto so that the shifting point is raised to a higher vehicle speed side during kickdown condition.

    摘要翻译: 一种用于机动车辆的自动动力传递的液压系统,适用于当车辆完全停止时防止机动车辆的蠕变。 液压系统包括响应于节气门压力和调速器压力的第一换档阀,以控制线压力的供给到用于致动摩擦元件以提供较低齿轮减速比的伺服装置,以及响应于油门踏板的释放状态的第二换档阀 用于将管路压力供应到第一换挡阀的调速器压力端口的车辆,由此第一换档阀根据节气门压力和管路压力移动到将伺服装置中的管路压力供给到位的位置,从而进入下部 齿轮减速比在动力传动。 液压系统还可以包括第三换档阀,其响应于加速器踏板的完全下压状态,以将管路压力供应到第一换档阀中以将线压力施加到其上,使得换档点在升档状态期间升高到较高车速侧。