公开(公告)号：JPH10190469A

公开(公告)日：1998-07-21

申请号：JP18624097

申请日：1997-07-11

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

Inventor： KIN CHINEI ,  RI HANTETSU ,  BOKU KENTETSU

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

Abstract: PROBLEM TO BE SOLVED: To provide nB2P encoder and decoder to simultaneously provide a line code function and a channel code function in a transmission line and a link. SOLUTION: An nB2P encoder divides inputted parallel data into a fixed data unit, converts data that is encoded by adding an odd parity to each divided data unit and a block synchronizing signal that is set by preliminarily making the encoded data perform code violation into serial data through a selection signal and outputs it. The nB2P encoder detects a block synchronizing signal by using a code violation pattern that is preliminarily set, converts encoded data into parallel data through a byte timing, detects an error of encoded data by checking an odd parity and decodes it into original data by eliminating the parity.

公开(公告)号：JPH1098446A

公开(公告)日：1998-04-14

申请号：JP20606597

申请日：1997-07-31

Applicant: KOREA TELECOMMUN

Inventor： RI ZAIKO ,  KIN CHINEI

IPC: H04J13/00 ,  H04B1/7093 ,  H04B7/26 ,  H04L12/70 ,  H04W56/00 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To provide a high system processing rate by providing capture performance accelerated rather than an existent parallel system by providing a reference matching filtering means, which is parallelly connected to the input side of a detected matching filtering means, for estimating the distribution of an interference component inputted to the detected matching filtering means. SOLUTION: N parallelly connected detected matching filters 41 input a sequence similar to a transmitted similar noise sequence as a received signal, select a maximum value among received signals and output it to a comparator 44. A reference matching filter 42 inputs a sequence orthogonal with the transmitted similar noise sequence as a received signal, filters it and removes multiple access interference. A gain multiplier 43 calculates a gain factor and outputs a discriminated critical value multiplied with the output of the reference matching filter 42 to the comparator 44. The comparator 44 compares the output of the detected matching filter 41 with the discriminated critical value outputted from the gain multiplier 43 and when the output is smaller than this value, the received signal is inputted again.