公开(公告)号：US5940018A

公开(公告)日：1999-08-17

申请号：US941214

申请日：1997-09-30

申请人： Jin-Young Kim ,  Bhum-Cheol Lee ,  Kwon-Chul Park

发明人： Jin-Young Kim ,  Bhum-Cheol Lee ,  Kwon-Chul Park

IPC分类号： H03M7/14 ,  H03M5/08 ,  H03M13/11 ,  H03M13/31 ,  H04B3/04 ,  H04L7/00 ,  H03M13/00

CPC分类号： H03M13/63 ,  H03M13/11 ,  H03M13/31 ,  H03M5/08

摘要： An nB2P coding/decoding device having a line code function facilitating data transmission and data recovery in the transmission line or link, and a function of a channel code for detecting errors in the recovered data, is provided, including: an nB2P coding device for dividing n bit width parallel data into two data units each having a predetermined bit width, and serial-transmitting the resulting n+2 bit coded data to which two odd parity bits are added, with predetermined n+2 bit with block synchronization data which is orthogonal to the coded data; and an nB2P decoding device for detecting the block synchronization data from the serially transmitted data, converts serial data to parallel form of n+2 bits, checking for errors in the coded data using the odd parity, and removing the odd parity to decode them into the original n bit width parallel data.

摘要翻译： 一种具有促进传输线或链路中的数据传输和数据恢复的线路代码功能的nB2P编码/解码装置，以及用于检测恢复数据中的错误的信道码的功能，包括：nB2P编码装置，用于分割 将n位宽的并行数据分割成具有预定位宽的两个数据单元，并且将具有两个奇校验位的所生成的n + 2位编码数据与预定的n + 2位串联发送，其中正交的块同步数据 到编码数据; 以及用于从串行发送数据检测块同步数据的nB2P解码装置，将串行数据转换成n + 2位的并行形式，使用奇校验检查编码数据中的错误，并且去除奇校验以将其解码为 原始n位宽的并行数据。

公开(公告)号：US06346895B1

公开(公告)日：2002-02-12

申请号：US09769099

申请日：2001-01-24

申请人： Bhum-Cheol Lee ,  Jong-Moo Sohn ,  Eun-Chang Choi ,  Kwon-Chul Park

发明人： Bhum-Cheol Lee ,  Jong-Moo Sohn ,  Eun-Chang Choi ,  Kwon-Chul Park

IPC分类号： H03M500

CPC分类号： H03M5/00

摘要： A method for using a nibble(partial bits of word) inversion code in a network system includes the steps of: a) adding 1 redundancy bit to n bit source data and generating a pre-code, n being an even number of 2 or over; b) deciding the number of transitions in the generated pre-code; c) determining the pre-code as a code word if the number of transitions in the pre-code is greater than or equal to 1+n/2 in a deciding result; d) inverting alternate bits including the redundancy bit among bits constructing the pre-code and generating the code word, if the number of transitions in the pre-code is less than n/2 in the deciding result; e) determining the pre-code as the code word in case that the number of transitions in the pre-code is equal to n/2 and simultaneously the source data is not an in-band signaling and not a special word in the deciding result; and f) inverting the nibble among the bits constructing the pre-code and generating the code word, in case that the number of transitions in the pre-code is equal to n/2 and simultaneously the source data is an in-band signaling or is a special word in the deciding result.

摘要翻译： 一种在网络系统中使用半字节（部分位字）反转码的方法包括以下步骤：a）将1个冗余比特加到n比特源数据并产生一个预编码，n是2或更多的偶数 ; b）决定生成的代码中的转换次数; c）如果所述预代码中的转换次数在决定结果中大于或等于1 + n / 2，则将所述预代码确定为代码字; d）如果所述预代码中的转换次数小于所述判定结果中的n / 2，则将包括构成所述预代码的位中的所述冗余位的交替位反转并生成所述代码字; e）在预编码中的转换次数等于n / 2并且同时源数据不是带内信令而不是决定结果中的特殊字的情况下，将前缀代码确定为码字 ; 以及f）在构成前代码的比特中产生半字节并产生码字，在预编码中的转换次数等于n / 2的情况下，并且源数据是带内信令或 是决定结果中的一个特殊字。

公开(公告)号：US5887040A

公开(公告)日：1999-03-23

申请号：US746992

申请日：1996-11-19

申请人： Hee-Young Jung ,  Bhum-Cheol Lee ,  Kwon-Chul Park

发明人： Hee-Young Jung ,  Bhum-Cheol Lee ,  Kwon-Chul Park

IPC分类号： H04L7/00 ,  H04L7/02 ,  H04L7/033 ,  H04L7/04

CPC分类号： H04L7/0338

摘要： The present invention provides a high speed digital data retiming apparatus, in which, in binary data bits transmitted at a high speed, the data can be retimed in a stable manner, even if there are present a static skew due to a delay difference between the retiming clock pulse and the data and a dynamic skew due to the characteristic variation according to time and temperature. Therefore, the present invention has the following advantages compared with the conventional apparatus. First, periodical and regular external clock pulses are delayed by means of a delaying section, so that system performance is independent of the pattern of data. Second, even if the data phases show a continuous difference (wandering) for more than a certain period of time, an elastic buffer absorbs the wandering, and therefore, no data loss is generated, with the result that the system is not put to a disorder condition. Third, even in the case where a metastable state occurs, its occurrence probability can be significantly reduced by utilizing logic, thereby making it possible to retime the data in stable manner.

摘要翻译： 本发明提供了一种高速数字数据重定时装置，其中，在以高速发送的二进制数据位中，即使存在静态偏移，也可以以稳定的方式重新定时， 重新定时钟脉冲和数据以及由于根据时间和温度的特性变化而产生的动态偏移。 因此，与现有技术相比，本发明具有以下优点。 首先，周期性和规则的外部时钟脉冲通过延迟部分被延迟，使得系统性能与数据模式无关。 第二，即使数据相位显示出持续的差异（漫游）一段时间，弹性缓冲器也可以吸收漂移，因此不会产生数据丢失，结果系统不会 无序状态。 第三，即使在发生亚稳态的情况下，也可以通过利用逻辑来显着降低其发生概率，从而使得可以以稳定的方式重新计算数据。