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    • 4. 发明公开
    • 정보 매체로부터 정보의 재생
    • 从信息载体复制信息
    • KR1020070086144A
    • 2007-08-27
    • KR1020077013348
    • 2005-11-16
    • 코닌클리케 필립스 엔.브이.
    • 반롬파에이바트쿠이페마아르텐
    • G11B20/10G11B7/007
    • G11B20/10009G11B20/10027G11B20/10046G11B2020/1288G11B2220/2541
    • The invention described is an apparatus for reproducing information from an information carrier (11) comprising: a waveform equalizer (6) for obtaining a corrected signal (S') by performing a waveform equalization to a read signal (S), the waveform equalizer (6) having an amplifying element with a gain (K) ; and gain setting means (1) for reading a numerical gain setting stored on the information carrier (11) and setting the gain (K) of the amplifying element to a value related to the numerical gain setting. By reading the numerical gain setting from the information carrier, the apparatus is able to set the gain (K) of the waveform equalizer to the optimal value for suppressing noise and inter symbol interference. The equalizer can be followed by a limit equalizer, the gain of which can also be wave form read from the information carrier.
    • 本发明是一种用于从信息载体(11)再现信息的装置,包括:波形均衡器(6),用于通过对读取信号(S)执行波形均衡来获得校正信号(S'),波形均衡器 6)具有增益(K)的放大元件; 以及用于读取存储在信息载体(11)上的数字增益设置并将放大元件的增益(K)设置为与数字增益设置相关的值的增益设置装置(1)。 通过从信息载体读取数值增益设置,该装置能够将波形均衡器的增益(K)设置为用于抑制噪声和符号间干扰的最佳值。 均衡器后面可以有一个限制均衡器,其增益也可以是从信息载体读取的波形。