The author describes the collection of all possible transfer functions of digital recursive filters that, when operating at p times the original data rate on runlength-limited (RLL) (d,k) bipolar data, can transform each allowable input signal into a bipolar output signal. For all integer values of p, d, and k with por=d>k>or= infinity , the collection of all transfer functions of digital recursive filters that satisfy this constraint is determined. It is also shown that, even for small values of p and d, this collection contains many transfer functions that are not obtained by previously known methods.
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机译：作者介绍了数字递归滤波器所有可能的传递函数的集合，这些数字递归滤波器在运行长度限制（RLL）（d，k）双极性数据上以原始数据速率的p倍运行时，可以将每个允许的输入信号转换为双极性输出信号。对于具有p 或= d> k> or = infinity的p，d和k的所有整数值，确定满足此约束的数字递归滤波器的所有传递函数的集合。还表明，即使对于较小的p和d值，该集合也包含许多传递函数，而这些传递函数是通过先前已知的方法无法获得的。
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