公开(公告)号：JPH10332538A

公开(公告)日：1998-12-18

申请号：JP34400797

申请日：1997-11-28

Applicant: KOREA ELECTRONICS TELECOMM ,  KOREA TELECOMMUN

Inventor： AN SHOKO ,  PARK SANG HO ,  ZEN GOKON ,  TEI MEIEI ,  SAI TAIKYU ,  CHO KANDAI

IPC: G01M13/00 ,  G01M7/08 ,  G01M11/00 ,  G01M11/08 ,  G01N3/08 ,  G01N3/14 ,  G01N3/20 ,  G01N3/303 ,  G02B6/24 ,  G02B6/38

Abstract: PROBLEM TO BE SOLVED: To evaluate various characteristics simultaneously by integrating testers for various characteristics thereby enhancing the efficiency of the tester. SOLUTION: The tester comprises a rotary section 101 being driven through a motor such that a tensile test, a bending test and a strain test can be carried out, a control section 103 fixed to one side of the rotary section 101 and controlling the speed and the number of times of test being carried out, and an impact test section 102 fixed to the opposite side of the rotary section 101 and performing an impact test by falling a test piece while adjusting the height thereof freely. Since the tester evaluates the tensile characteristics, the bending characteristics, the strain characteristics, the impact characteristics, and the like, simultaneously, the measuring time can be shortened while reducing the labor and the mechanical characteristics can be evaluated efficiently and economically. Consequently, the mechanical characteristics can be evaluated accurately and reliably using a precisely manufactured tester.

公开(公告)号：JPH11252126A

公开(公告)日：1999-09-17

申请号：JP35659798

申请日：1998-12-15

Applicant: KOREA TELECOMMUN

Inventor： RI SOKYU ,  IN KEIMO ,  CHO JUBI ,  BOKU SHINSHOKU ,  BOKU YONKI ,  GEN SHINSO ,  KIN KOFUKU ,  BOKU KIGO ,  AN SHOKO

IPC: H04J14/00 ,  H04B10/00 ,  H04B10/27 ,  H04J14/02 ,  H04L12/28 ,  H04L12/931 ,  H04Q11/00 ,  H04B10/02

Abstract: PROBLEM TO BE SOLVED: To reduce the system cost by realizing switching capability of a large capacity in an optical asynchronous transfer mode ATM switching system so as to considerably decrease number of hardware sets. SOLUTION: A wavelength division multiplex/time division multiplex conversion module 24 demultiplexes an optical channel that is wavelength-multiplexed via a transmission link 23 of each input terminal of an optical ATM switch, converts the wavelength into a primary wavelength for path distribution for each channel, compresses cells to prevent collision among plural cells and applies time division multiplex processing to the cells. Then a 1st path distributor 25 distributes each cell whose wavelength is converted into the primary wavelength to a primary destination, a time division multiplex processing/wavelength division multiplex processing switching module 26 demultiplexes a channel signal distributed to a path, inversely compresses the signal into an original signal form, converts the wavelength into a wavelength to be distributed to a final destination, compresses the cells to prevent cell collision again and a 2nd path distributor 27 distributes the signal that is inversely compressed to the final destination.