公开(公告)号：EP1953924A1

公开(公告)日：2008-08-06

申请号：EP06817829.2

申请日：2006-11-16

申请人： Miartech, Inc.

发明人： SONG, Chaosheng ,  CHEN, Xiaoyan

IPC分类号： H04B1/69

CPC分类号： H04B1/707 ,  H04J13/0014 ,  H04J13/0077 ,  H04J13/102

摘要： The present invention relates to a method and an apparatus for spread spectrum modulation and demodulation using a special spread spectrum sequence, characterized in that Golay complementary codes are modulated onto orthogonal channels such that a corresponding complex complementary code is obtained. The signal spread by such complex complementary code has a low peak-to-average power ratio, a sound self-correlation property and cross-correlation property, which can well solve the problem of multi-access interference such that the communication performance of the entire system is improved.

摘要翻译： 本发明涉及一种使用特殊扩频序列进行扩频调制和解调的方法和装置，其特征在于，将Golay互补码调制到正交信道上，从而获得相应的复杂互补码。 通过这种复杂的互补码扩展的信号具有低的峰均功率比，声自相关特性和互相关性，可以很好地解决多接入干扰的问题，使整个通信的通信性能 系统得到改进。

公开(公告)号：EP1953917A4

公开(公告)日：2012-07-25

申请号：EP06817830

申请日：2006-11-16

申请人： MIARTECH INC

发明人： SONG CHAOSHENG ,  GOU GANG

IPC分类号： H03L7/00 ,  H03L7/099

CPC分类号： H03L7/0994 ,  H03L7/085 ,  H03L2207/50

公开(公告)号：EP1953924A4

公开(公告)日：2011-05-04

申请号：EP06817829

申请日：2006-11-16

申请人： MIARTECH INC

发明人： SONG CHAOSHENG ,  CHEN XIAOYAN

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04J13/00 ,  H04J13/10

CPC分类号： H04B1/707 ,  H04J13/0014 ,  H04J13/0077 ,  H04J13/102

公开(公告)号：EP1953917A1

公开(公告)日：2008-08-06

申请号：EP06817830.0

申请日：2006-11-16

申请人： Miartech, Inc.

发明人： SONG, Chaosheng ,  GOU, Gang

IPC分类号： H03L7/00

CPC分类号： H03L7/0994 ,  H03L7/085 ,  H03L2207/50

摘要： The present invention relates to an apparatus for accurately detecting a mains phase. The apparatus is constructed with a zero-crossing detector, a digital phase detector, a digital loop filter, and a digital controlled oscillator (DCO) of a direct digital synthesized (DDS) manner. The present apparatus employs an all-digital loop architecture and a high sampling clock to recover a signal with a phase orthogonal with the mains signal and a frequency the same as the mains signal. And jitters in the recovered signal are less than 10us. The present apparatus is capable of implementing signal tracking of a zero frequency error and a zero phase in a wide range, and can provide a detection result of excellent performance for the power line carrier communication, mains frequency detection, etc.

摘要翻译： 本发明涉及一种用于准确检测电源相位的装置。 该装置由零交叉检测器，数字相位检测器，数字环路滤波器和直接数字合成（DDS）方式的数字控制振荡器（DCO）构成。 本装置采用全数字环路架构和高采样时钟来恢复具有与市电信号正交的相位的信号和与市电信号相同的频率。 并且在恢复的信号中的抖动小于10us。 本装置能够在宽范围内实现零频率误差和零相位的信号跟踪，并且可以为电力线载波通信，电源频率检测等提供优异性能的检测结果。