JPS5724147A - Confidential communication system - Google Patents

Confidential communication system

Info

Publication number
JPS5724147A
JPS5724147A JP9877480A JP9877480A JPS5724147A JP S5724147 A JPS5724147 A JP S5724147A JP 9877480 A JP9877480 A JP 9877480A JP 9877480 A JP9877480 A JP 9877480A JP S5724147 A JPS5724147 A JP S5724147A
Authority
JP
Japan
Prior art keywords
confidential
terminal
sentence
transmitted
reception
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.)
Granted
Application number
JP9877480A
Other languages
English (en)
Other versions
JPS6325547B2 (ja
Inventor
Kazuo Nishimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9877480A priority Critical patent/JPS5724147A/ja
Publication of JPS5724147A publication Critical patent/JPS5724147A/ja
Publication of JPS6325547B2 publication Critical patent/JPS6325547B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation
JP9877480A 1980-07-21 1980-07-21 Confidential communication system Granted JPS5724147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9877480A JPS5724147A (en) 1980-07-21 1980-07-21 Confidential communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9877480A JPS5724147A (en) 1980-07-21 1980-07-21 Confidential communication system

Publications (2)

Publication Number Publication Date
JPS5724147A true JPS5724147A (en) 1982-02-08
JPS6325547B2 JPS6325547B2 (ja) 1988-05-25

Family

ID=14228717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9877480A Granted JPS5724147A (en) 1980-07-21 1980-07-21 Confidential communication system

Country Status (1)

Country Link
JP (1) JPS5724147A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01162451A (ja) * 1987-12-18 1989-06-26 Fujitsu Ltd ファクシミリ装置
US4901348A (en) * 1985-12-24 1990-02-13 American Telephone And Telegraph Company Data transmission security arrangement for a plurality of data stations sharing access to a communication network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447504A (en) * 1977-09-22 1979-04-14 Nippon Telegr & Teleph Corp <Ntt> Storage receiving system for private designated telegram

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447504A (en) * 1977-09-22 1979-04-14 Nippon Telegr & Teleph Corp <Ntt> Storage receiving system for private designated telegram

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901348A (en) * 1985-12-24 1990-02-13 American Telephone And Telegraph Company Data transmission security arrangement for a plurality of data stations sharing access to a communication network
JPH01162451A (ja) * 1987-12-18 1989-06-26 Fujitsu Ltd ファクシミリ装置

Also Published As

Publication number Publication date
JPS6325547B2 (ja) 1988-05-25

Similar Documents

Publication Publication Date Title
GB2393886B (en) MMS system and method with protocol conversion suitable for mobile/portable handset display
CA2239985A1 (en) Mobile communications terminal for satellite communications system
BRPI0412792A (pt) método de transmissão de informação adicionais em sistema de comunicações, dispositivo de permuta telefÈnica, estação de usuário e programas de controle respectivos
RU2001131412A (ru) Система приема, зарядное устройство для батареи, портативный терминал для обмена информацией, а также система передачи и приема
DE60008786D1 (de) Anrufumleitungssystem
WO2000062503A3 (en) Apparatus and method for authenticating messages in a multicast
NO901413L (no) Apparat for behandling av signalmeldinger i et telekommunikasjonsnettverk med asynkron tidsdeling.
ATE206547T1 (de) Datenübertragungsempfänger mit wiederübertragung von nachrichten mit variabler länge
KR950022246A (ko) 메시지데이터의 분할송신방법, 수신방법 및 메시지데이터 송신장치, 수신장치
GB2168516B (en) Paging receiver and transmitting device adapted to said receiver
JPS5724147A (en) Confidential communication system
KR880700580A (ko) 비동기식 어드레싱 다중 통신시스템
FR2428292A1 (fr) Procede et dispositif de communication visuelle
JPS57147363A (en) Transfer system for private branch telephone switching information
WO2001001724A3 (en) Method and network switch for constructing an address table in a network switch
JPS5671358A (en) Control system for button telephone
JPS57142058A (en) Mail box communication system
JPS5750169A (en) Facsimile transmission display device
FI20045202A (fi) Tiedonsiirtomenetelmä hajautetussa prosessinohjausjärjestelmässä
JPS57113664A (en) Display system for communication management
SE9201861D0 (sv) Anordning foer att generera vilokoder vid vaeljare
JPS6461842A (en) Message exchange processor
KR950001188Y1 (ko) 문자 다중방송 수신회로를 이용한 가정정보 처리장치
JPS57142057A (en) Mail box communication system
Barrett et al. FAX: A study of principles, practice and prospects for facsimile transmission in the UK