JPS54116802A - Privacy communication system - Google Patents
Privacy communication systemInfo
- Publication number
- JPS54116802A JPS54116802A JP2418678A JP2418678A JPS54116802A JP S54116802 A JPS54116802 A JP S54116802A JP 2418678 A JP2418678 A JP 2418678A JP 2418678 A JP2418678 A JP 2418678A JP S54116802 A JPS54116802 A JP S54116802A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- data
- repeater
- switching network
- sent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Facsimile Transmission Control (AREA)
Abstract
PURPOSE: To enable a specific receiver only to receive data definitely without controlling the connection of a switching network when transmitting secret data from a data transmitting terminal to a receiving terminal via a repeater of the switching network.
CONSTITUTION: In data switching network NW equipped with data transmitting terminal T, data receiving terminal R and repeater P, off-hook signal (a) is switched to dial tone (b) between terminal T and switching network NW before privacy communication pass work PW and receiving terminal number ID are sent to repeater P from terminal T and then, data information DATA is sent and stored in repeater P after terminal T receives OK signal (g). Next, terminal R is connected to repeater P via switching network NW and pass word P from terminal R is collated with terminal number ID by repeater P, so that only when the both agree each other, data information DATA stored in repeated P will be sent out to terminal R.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2418678A JPS54116802A (en) | 1978-03-03 | 1978-03-03 | Privacy communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2418678A JPS54116802A (en) | 1978-03-03 | 1978-03-03 | Privacy communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54116802A true JPS54116802A (en) | 1979-09-11 |
Family
ID=12131291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2418678A Pending JPS54116802A (en) | 1978-03-03 | 1978-03-03 | Privacy communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54116802A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113870A (en) * | 1984-06-29 | 1986-01-22 | Ricoh Co Ltd | Polling transmission system |
JPS61222379A (en) * | 1985-03-05 | 1986-10-02 | Fujitsu Ltd | Facsimile communication system |
JPS6275679U (en) * | 1986-10-16 | 1987-05-14 | ||
JPS63257372A (en) * | 1987-04-15 | 1988-10-25 | Hitachi Ltd | Facsimile reply system |
JP2014192871A (en) * | 2013-03-28 | 2014-10-06 | Nippon Telegraph & Telephone East Corp | Data transmission system, data transmission method, and data transmission program |
-
1978
- 1978-03-03 JP JP2418678A patent/JPS54116802A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113870A (en) * | 1984-06-29 | 1986-01-22 | Ricoh Co Ltd | Polling transmission system |
JPS61222379A (en) * | 1985-03-05 | 1986-10-02 | Fujitsu Ltd | Facsimile communication system |
JPS6275679U (en) * | 1986-10-16 | 1987-05-14 | ||
JPS63257372A (en) * | 1987-04-15 | 1988-10-25 | Hitachi Ltd | Facsimile reply system |
JP2014192871A (en) * | 2013-03-28 | 2014-10-06 | Nippon Telegraph & Telephone East Corp | Data transmission system, data transmission method, and data transmission program |
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