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1. 发明申请

WO1997041552A1 METHOD AND APPARATUS FOR SPECTRAL ANALYSIS IN A DISK RECORDING SYSTEM 审中-公开
标题翻译：磁盘记录系统中光谱分析的方法与装置
公开(公告)号：WO1997041552A1
公开(公告)日：1997-11-06
申请号：PCT/US1997006833
申请日：1997-04-23
申请人： QUANTUM CORPORATION
发明人： QUANTUM CORPORATION , BAKER, Bill, R. , FITZPATRICK, James
IPC分类号： G11B05/09
CPC分类号： G11B27/36 , G11B5/012 , G11B20/10 , G11B2005/001 , G11B2220/20
摘要： A method of performing spectral analysis of signals recorded by a magnetic recording or storage system is provided using a modified channel chip of the system. The modified channel chip enables measurement of harmonic components of the recorded signal. The method is performed by reading the recorded periodic analog signal and converting the signal into a discrete time periodic signal. The discrete time periodic signal is digitally sampled at predetermined intervals, and the digital samples are selectively accumulated in a register (341) or registers of the channel chip. Incoming digital samples are accumulated by alternately being added and substracted (345) to contents of single register (341). The accumulated results represent summations used to determine harmonic coefficients of the recorded signal. The harmonic sensor includes an arithmetic unit and a register (341) or register for accumulating the digital samples.
摘要翻译：使用系统的修改的通道芯片提供对由磁记录或存储系统记录的信号执行频谱分析的方法。经修改的通道芯片能够测量记录信号的谐波分量。该方法通过读取记录的周期性模拟信号并将信号转换成离散的时间周期信号来执行。离散时间周期信号以预定间隔数字采样，并且数字样本被选择性地累积在寄存器（341）或信道芯片的寄存器中。通过交替地添加和减少（345）到单个寄存器（341）的内容来累积进入的数字样本。累积结果表示用于确定记录信号的谐波系数的求和。谐波传感器包括算术单元和用于累积数字样本的寄存器（341）或寄存器。

2. 发明公开

EP0835506A1 METHOD AND APPARATUS FOR SPECTRAL ANALYSIS IN A DISK RECORDING SYSTEM 失效
标题翻译：方法和设备频谱在平板记录系统
公开(公告)号：EP0835506A1
公开(公告)日：1998-04-15
申请号：EP97918794.0
申请日：1997-04-23
申请人： QUANTUM CORPORATION
发明人： BAKER, Bill, R. , FITZPATRICK, James
IPC分类号： G01R29 , G11B5 , G11B20 , G11B27
CPC分类号： G11B27/36 , G11B5/012 , G11B20/10 , G11B2005/001 , G11B2220/20
摘要： A method of performing spectral analysis of signals recorded by a magnetic recording or storage system is provided using a modified channel chip of the system. The modified channel chip enables measurement of harmonic components of the recorded signal. The method is performed by reading the recorded periodic analog signal and converting the signal into a discrete time periodic signal. The discrete time periodic signal is digitally sampled at predetermined intervals, and the digital samples are selectively accumulated in a register (341) or registers of the channel chip. Incoming digital samples are accumulated by alternately being added and substracted (345) to contents of single register (341). The accumulated results represent summations used to determine harmonic coefficients of the recorded signal. The harmonic sensor includes an arithmetic unit and a register (341) or register for accumulating the digital samples.

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