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.

公开(公告)号：JPH1082929A

公开(公告)日：1998-03-31

申请号：JP31611396

申请日：1996-11-27

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

Inventor： MYUNYUN JEON ,  SANHO PARK ,  OOGON CHUN ,  SEUNHO AAN ,  TEGUU CHOI ,  HAKUSEOOKU KIMU

IPC: G02B6/38 ,  G02B6/40

Abstract: PROBLEM TO BE SOLVED: To provide a multi-core optical connector which lessens the dependence on a superprecision molding technique and contributes to the stability of production technology. SOLUTION: This multi-core optical connector has an adaptor 10 which is provided with openings for inserting plugs 20 on both sides, is bored with a through-hole in the longitudinal direction at its center and in which coupling holes 11 are formed in the central parts of the front and rear surfaced on both sides, the plugs 20 which have coupling members 23 which are provided with the through-hole for inserting an optical fiber and are provided with engaging projections 24 to be inserted into the coupling holes 11 to fasten the plugs 20 to the adapter 10 in the upper and lower parts on their one-side ends, are provided with plug housings 21 for housing the plug bodies on the outside parts thereof and are attached and detached to and from both openings 12 of the adapter 10, ferrules 25 which are disposed on the one-side ends of the plugs 20, in which many fine holes 54 for inserting core 52 of optical fibers are bored in their centers in one row, and which execute the protection and alignment of the optical fibers and a sleeve 40 which is inserted into the central through-hole of the adapter 10 and supports both ferrules 25 so as to cover their outside parts to precisely align the optical fibers in the ferrules 25.