Title:
DATA TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JPS5295104
Kind Code:
A
Abstract:
PURPOSE: To prevent wrong operations of the system which are caused when loop trouble such as temporary disconnection occur, by cutting the output signal when the input of transmission device is cut.
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Inventors:
MATSUMOTO HIROSHI
MIZOKAWA SADAO
IDE TOSHIKI
MIZOKAWA SADAO
IDE TOSHIKI
Application Number:
JP1140476A
Publication Date:
August 10, 1977
Filing Date:
February 06, 1976
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H04B3/46; G06F13/00; H04B3/462; H04L12/42; H04L12/437; (IPC1-7): G06F3/00; H04B1/00; H04L11/00
Domestic Patent References:
| JPS4940640A | 1974-04-16 | |||
| JP38004627A | ||||
| JPS4830781A | 1973-04-23 |
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