能有效抑制光盘数据和值的方法

Method to Effective Inhibit Digital Sum Value of the Optic Disc Data

针对光盘调制时数据和值(DSV)需要得到有效抑制的问题,提出一种基于枚举能有效抑制DSV的方法,通过对待调制数据分段调制,枚举该段数据所有可能数据流,对各个数据流计算DSV。该方法能完全展示出一段数据的所有可能调制流的DSV特性,从而在选取合适的调制流时提供了充分完整的数据,选择出最佳的调制数据流。该方法在实验和生产线测试均完全得到验证,可以非常好地抑制光盘的DSV。

Digital sum value（DSV） for the data of the optic discs needs to be effectively suppressed,a method based on enumerating to effective inhibit the digital sum value of the optic disc data is proposed.This method cuts the raw data into pieces to get modulation,enumerates all possible bit streams,calculates the DSV of each bit stream.This method can completely show the DSV characteristics in all of possible bit streams,thus can select the appropriate stream as the modulation data stream.This method is tested in laboratory and production line,that can be completely verified and is a very good suppression of the DSV.