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1. 发明授权

US6138132A High speed ROM-based nyquist fir filter 失效
标题翻译：高速基于ROM的nyquist fir过滤器
公开(公告)号：US6138132A
公开(公告)日：2000-10-24
申请号：US97804
申请日：1998-06-16
申请人： Seong Bong Lee , In Kang , Kwang Il Yeon , Kyung Soo Kim
发明人： Seong Bong Lee , In Kang , Kwang Il Yeon , Kyung Soo Kim
IPC分类号： H03M1/00 , G06T1/60 , G06F17/10
CPC分类号： G06T1/60
摘要： A high speed ROM-based Nyquist FIR filter which is capable of enhancing a modulation speed without increasing the operational frequency of the filter by overcoming the problems encountered in the conventional digital modulation ROM-based FIR filter. Therefore, it is possible to increase the modulation speed by the interpolation ratio without increasing the operational frequency of the filter compared to the method of using a conventional FIR filter using one ROM. Accordingly, the high speed ROM-based Nyquist FIR filter according to the present invention is well adaptive to the modulation FIR filter of a broadband digital communication which requires a high speed data processing capability.
摘要翻译：一种基于高速ROM的奈奎斯特FIR滤波器，其能够通过克服常规的基于数字调制ROM的FIR滤波器中遇到的问题而提高调制速度而不增加滤波器的工作频率。因此，与使用一个ROM的常规FIR滤波器的方法相比，可以通过插值比率增加调制速度而不增加滤波器的工作频率。因此，根据本发明的基于高速ROM的奈奎斯特FIR滤波器很好地适应于需要高速数据处理能力的宽带数字通信的调制FIR滤波器。

2. 发明授权

US06170077A Method for encoding a digital communication channel 有权
标题翻译：数字通信信道编码方法
公开(公告)号：US06170077A
公开(公告)日：2001-01-02
申请号：US09135680
申请日：1998-08-18
申请人： In Gi Lim , Seong Bong Lee , Kwang Il Yeon , Kyung Soo Kim
发明人： In Gi Lim , Seong Bong Lee , Kwang Il Yeon , Kyung Soo Kim
IPC分类号： H03M1303
CPC分类号： H03M13/235 , H03M13/27
摘要： A method for encoding a digital communication channel is disclosed. The method includes the steps of first storing a frame data, which is inputted for a channel encoding operation, into an encoder RAM (ERAM0); second addressing the ERAM and storing the data into a register via a multiplexer in accordance with a control of a frame selection signal; third addressing the ERAM for reading the previous input data and storing the read data into the register; fourth selecting an input data among two register output data, inputting the selected input data into the convolutional encoder and generating a code symbol; and fifth selecting one among the code symbols and obtaining an output of the channel encoder that completed the convolutional encoding and interleaving operations.
摘要翻译：公开了一种用于对数字通信信道进行编码的方法。该方法包括以下步骤：将针对频道编码操作输入的帧数据首先存储到编码器RAM（ERAM0）中; 第二寻址ERAM并根据帧选择信号的控制经由多路复用器将数据存储到寄存器中; 第三个寻址ERAM读取以前的输入数据并将读取的数据存储到寄存器中; 在两个寄存器输出数据之间选择一个输入数据，将选择的输入数据输入到卷积编码器并产生代码符号; 并且在代码符号中选择一个，并获得完成卷积编码和交织操作的信道编码器的输出。

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