JPS5961242A - 秘匿通信システム - Google Patents

秘匿通信システム

Info

Publication number
JPS5961242A
JPS5961242A JP16955282A JP16955282A JPS5961242A JP S5961242 A JPS5961242 A JP S5961242A JP 16955282 A JP16955282 A JP 16955282A JP 16955282 A JP16955282 A JP 16955282A JP S5961242 A JPS5961242 A JP S5961242A
Authority
JP
Japan
Prior art keywords
analog
signal
digital
secret
input
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
JP16955282A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0442862B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Ebihara
蛯原　博志
Shinjiro Suzuki
鈴木　新治郎
Shigeki Tanaka
田中　重喜
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16955282A priority Critical patent/JPS5961242A/ja
Publication of JPS5961242A publication Critical patent/JPS5961242A/ja
Publication of JPH0442862B2 publication Critical patent/JPH0442862B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
JP16955282A 1982-09-30 1982-09-30 秘匿通信システム Granted JPS5961242A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16955282A JPS5961242A (ja) 1982-09-30 1982-09-30 秘匿通信システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16955282A JPS5961242A (ja) 1982-09-30 1982-09-30 秘匿通信システム

Publications (2)

Publication Number Publication Date
JPS5961242A true JPS5961242A (ja) 1984-04-07
JPH0442862B2 JPH0442862B2 (enrdf_load_stackoverflow) 1992-07-14

Family

ID=15888581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16955282A Granted JPS5961242A (ja) 1982-09-30 1982-09-30 秘匿通信システム

Country Status (1)

Country Link
JP (1) JPS5961242A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7219229B2 (en) 2000-12-21 2007-05-15 Yasumasa Uyama Protected communication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837003A (enrdf_load_stackoverflow) * 1971-09-07 1973-05-31
JPS53136404A (en) * 1977-05-02 1978-11-29 Motorola Inc Digital audio protecting system and method
JPS5676646A (en) * 1979-11-07 1981-06-24 Crypto Ag Device for transmission control signal through speeh channel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4837003A (enrdf_load_stackoverflow) * 1971-09-07 1973-05-31
JPS53136404A (en) * 1977-05-02 1978-11-29 Motorola Inc Digital audio protecting system and method
JPS5676646A (en) * 1979-11-07 1981-06-24 Crypto Ag Device for transmission control signal through speeh channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7219229B2 (en) 2000-12-21 2007-05-15 Yasumasa Uyama Protected communication system

Also Published As

Publication number Publication date
JPH0442862B2 (enrdf_load_stackoverflow) 1992-07-14

Similar Documents

Publication Publication Date Title
EP0800325B1 (en) A customer telecommunications interface device with built-in network features
CA2128305C (en) Secure telecommunications
US6266418B1 (en) Encryption and authentication methods and apparatus for securing telephone communications
US5455861A (en) Secure telecommunications
US5974142A (en) Secure telecommunications
CA1175964A (en) Two wire voice and data subscriber loop
US4920565A (en) Method for connection of secure conference calls
US5465300A (en) Secure communication setup method
EP1973373B1 (en) A customer telecommunication interface device having a unique identifier
JP2005229648A (ja) 音声信号送受信装置、音声信号送受信方法、電話音声郵便システムおよび電話音声郵便の送受信方法
US5943319A (en) Packet format interface for telecommunication instruments
JPS63248269A (ja) 電話機
JPH02113761A (ja) テレビ電話装置
JPS5961242A (ja) 秘匿通信システム
JPS5961329A (ja) 秘匿通信システム
KR100856625B1 (ko) 사설 교환기간의 메시지 송수신 시스템 및 방법
JPH05130099A (ja) 秘話通話方式
JPH0548576A (ja) 秘話通信方式
JPS5974744A (ja) 秘匿通信方式
JPH0239661A (ja) 通信システム
JPS63193694A (ja) 高能率音声符号化回線の端末秘匿方式
JPS58154961A (ja) 秘匿通話方法
JPH06105935B2 (ja) 電話交換機方式
JPS58146165A (ja) デイジタル電話機の呼出方式
JPH0379145A (ja) 通信端末装置