Title:
URGENT SIGNAL REPEATER AND URGENT SIGNAL COMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP3232020
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an urgent signal repeater for collecting safety information emitted from an urgent signal generation device, which multiple sufferers possess when disaster occurs.
SOLUTION: The urgent signal repeater 3 is provided with a reception means receiving a data signal containing safety information of the sufferer, which is emitteded from the plural transmission devices 1, a packet assembly means assembling a packet from data received by the reception means and the transmission means emitting the packet at random intervals. In such a case, the signal outputted from the transmission means is modulated by a frequency different from that of the data signal emitted from the transmission devices 1.
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Inventors:
Youichi Sato
Application Number:
JP6354097A
Publication Date:
November 26, 2001
Filing Date:
March 17, 1997
Export Citation:
Assignee:
Sataro Suzuki
International Classes:
G08B25/00; G08B25/10; H04B1/034; H04B1/06; H04L47/43; (IPC1-7): G08B25/00; G08B25/10; H04B1/034; H04B1/06; H04L12/56
Domestic Patent References:
| JP943010A | ||||
| JP833009A |
Attorney, Agent or Firm:
Shizutomi Kato (1 person outside)
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