Excavating
Patent
1990-07-03
1992-12-01
Atkinson, Charles E.
Excavating
371 18, 371 204, 371 34, H04L 114
Patent
active
051685000
ABSTRACT:
Code data of input type and output type low-speed interface units installed in one and other optical data transmission apparatus, placed opposite to and operatively connected to each other, are compared automatically in the one and the other optical data transmission apparatus respectively with code data of input type and output interface units in the other optical data transmission apparatus, sent from the other to the one optical data transmission apparatus and with code data of input type and output interface units in the one optical data transmission apparatus, sent from the one to the other optical data transmission apparatus.
REFERENCES:
patent: 3453592 (1969-07-01), Yoshiteru
patent: 4347609 (1982-08-01), Fukuyama
patent: 4376998 (1983-03-01), Abbott
patent: 4631719 (1986-12-01), Huffman
Kurokawa Masumi
Naito Kanji
Taniguchi Kazuhiko
Atkinson Charles E.
Fujitsu Limited
Lo Allen M.
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