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    • 43. 发明授权
    • Apparatus and method to read information from an information storage medium
    • 从信息存储介质读取信息的装置和方法
    • US07793020B1
    • 2010-09-07
    • US10306300
    • 2002-11-27
    • James J. HowarthRobert A. Hutchins
    • James J. HowarthRobert A. Hutchins
    • G06F13/28
    • G11B20/10009G11B20/10027G11B20/10046G11B20/10074G11B20/10175G11B20/10222G11B20/10425G11B20/10481G11B2020/10675G11B2020/10759G11B2220/2537G11B2220/41G11B2220/90
    • A method and apparatus to read information from an information storage medium using a read channel, where that read channel includes a data cache. The invention generates an analog waveform comprising the information, and provides that analog waveform to a read channel, and generates a digital signal from that analog waveform using one or more first operating parameters. The method error corrects that digital signal at an actual error correction rate, and determines if the actual error correction rate is greater than an error correction rate threshold. If the actual error correction rate exceeds the error correction rate threshold, then the method captures the digital signal, stores that captured data in a data cache, reads that digital signal from the cache, generates one or more second operating parameters, and provides those one or more second operating parameters to the read channel. Thereafter, the method uses those one or more second operating parameters to read the information from the information storage medium.
    • 一种使用读通道从信息存储介质读取信息的方法和装置,其中该读通道包括数据高速缓存。 本发明产生包含该信息的模拟波形,并将该模拟波形提供给读通道,并使用一个或多个第一操作参数从该模拟波形生成数字信号。 方法误差以实际的纠错率校正数字信号,并确定实际的纠错率是否大于纠错率阈值。 如果实际的纠错率超过纠错率阈值,则该方法捕获数字信号,将捕获的数据存储在数据高速缓存中,从高速缓存中读取该数字信号,产生一个或多个第二操作参数,并提供那些 或更多的第二操作参数。 此后,该方法使用这些一个或多个第二操作参数来从信息存储介质读取信息。
    • 45. 发明授权
    • Recording method and optical disc apparatus
    • 记录方法和光盘装置
    • US07773481B2
    • 2010-08-10
    • US11091663
    • 2005-03-29
    • Hiroyuki Minemura
    • Hiroyuki Minemura
    • G11B20/10
    • G11B7/0062G11B7/1267G11B20/10009G11B20/10046G11B20/10055G11B20/10166G11B20/10222G11B20/10296G11B20/10481G11B2007/0006
    • In a recordable optical disc apparatus, the efficiency of the work necessary for optimizing the write pulse condition (write strategy) is improved and the read compatibility among drive units is ensured by a minimum addition of circuitry. An edge shift amount or a read signal and a binarized result are stored in an external memory as digital data and are later processed by analysis software in a host PC. The write pulse shape and power conditions can be optimized to individual optical disc media in a short time by means of a simple circuit. Further, by optimizing the write pulse shape and power condition in view of the PRML class or the difference in NA of the head, any deterioration of read compatibility can be avoided.
    • 在可记录的光盘装置中,提高了优化写入脉冲条件(写入策略)所需的工作效率,并且通过最小的电路添加来确保驱动单元之间的读取兼容性。 边缘移位量或读取信号和二值化结果作为数字数据存储在外部存储器中,并且随后由主机PC中的分析软件处理。 通过简单的电路,可以在短时间内对单个光盘介质优化写脉冲形状和功率条件。 此外,通过根据PRML类或头的NA的差异优化写入脉冲形状和功率条件,可以避免读取兼容性的任何劣化。
    • 46. 发明申请
    • Systems and Methods for Equalizer Optimization in a Storage Access Retry
    • 存储访问重试中均衡器优化的系统和方法
    • US20100172046A1
    • 2010-07-08
    • US12348236
    • 2009-01-02
    • Jingfeng LiuHongwei SongRichard RauschmayerYuan Xing Lee
    • Jingfeng LiuHongwei SongRichard RauschmayerYuan Xing Lee
    • G11B20/10
    • G11B20/10009G11B20/10046G11B20/10055G11B20/10481G11B20/18G11B2020/183G11B2220/2516
    • Various embodiments of the present invention provide data processing circuits that include a multiplexer, a memory buffer, a data processing circuit, and a channel setting modification circuit. A first input of the multiplexer receives an input data set and a second input of the multiplexer receives a buffered data set. The multiplexer provides either the input data set or the buffered data set as a multiplexer output based upon a select signal. The memory buffer receives the multiplexer output and provides the buffered data set. Operation of the data processing circuit is at least in part governed by channel settings. The data processing circuit receives the multiplexer output and performs a data detection process. The select signal is asserted to select the buffered data set when the data detection process fails, and is asserted to select the input data set when the data detection process succeeds. The channel setting modification circuit is operable to modify the channel settings when the data detection process fails.
    • 本发明的各种实施例提供了包括多路复用器,存储器缓冲器,数据处理电路和通道设置修改电路的数据处理电路。 多路复用器的第一输入接收输入数据集,多路复用器的第二输入接收缓冲数据集。 复用器根据选择信号提供输入数据组或缓冲数据组作为多路复用器输出。 存储器缓冲器接收多路复用器输出并提供缓冲数据集。 数据处理电路的操作至少部分由通道设置决定。 数据处理电路接收复用器输出并执行数据检测处理。 当数据检测过程失败时,选择信号被置位以选择缓冲数据集,当数据检测过程成功时,选择信号选择输入数据集。 当数据检测处理失败时,通道设置修改电路可操作以修改通道设置。
    • 47. 发明申请
    • MULTI-PARAMETER OPTIMIZATION OF WRITE HEAD PERFORMANCE USING ADAPTIVE RESPONSE SURFACE
    • 使用自适应响应表面的写入头部性能的多参数优化
    • US20100134911A1
    • 2010-06-03
    • US12326679
    • 2008-12-02
    • Zhen JinKezhao Zhang
    • Zhen JinKezhao Zhang
    • G11B27/36
    • G11B5/1278G11B5/455G11B20/10481G11B20/1816G11B2220/2516
    • A method for optimizing design parameters of a magnetic write head. The method involves compiling a table of data points for a plurality of design parameters. An experimentally derived optimal design point is determined a first set of tests are performed at this experimentally determined design point. A three dimensional response surface is generated based on the testing. Then, a projected optimal design point is determined from the three dimensional response surface. Another test is performed using this projected optimal design point, and a convergence is determined by comparing the results of the first and second tests. If the convergence is within a predetermined value, then the process is complete. If the convergence is not within the predetermined value, then the process is repeated using the most recent projected optimal design point.
    • 一种优化磁写头设计参数的方法。 该方法包括编译多个设计参数的数据点表。 确定实验得出的最佳设计点,在该实验确定的设计点执行第一组测试。 基于测试生成三维响应面。 然后,从三维响应面确定预测的最佳设计点。 使用该预测的最佳设计点进行另一个测试,并且通过比较第一和第二测试的结果来确定收敛。 如果收敛在预定值内,则该过程完成。 如果收敛不在预定值内,则使用最近预测的最佳设计点重复该过程。