Title:
RESPONSE CONFIRMING SYSTEM FOR SIMULTANEOUS INFORMATION
Document Type and Number:
Japanese Patent JPS52155904
Kind Code:
A
Abstract:
PURPOSE: To enable the confirmation of response at the terminal station economically, by sending the synchronous signal for response confirmation from the branch station to the terminal and central station in the prevention of disasters administration radio system.
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Inventors:
YAMAGUCHI TOSHIROU
SATOU MUNEO
SATOU MUNEO
Application Number:
JP7214076A
Publication Date:
December 24, 1977
Filing Date:
June 21, 1976
Export Citation:
Assignee:
HITACHI ELECTRONICS
International Classes:
H04M3/42; G08B23/00; G08B25/10; G08B29/00; H04B7/26; H04H20/00; H04H20/59; H04L12/44; H04Q9/00; (IPC1-7): G08B25/00; H04B1/00; H04M3/00; H04Q9/00