JPS51113401A - Privacy telephone communication system - Google Patents

Privacy telephone communication system

Info

Publication number
JPS51113401A
JPS51113401A JP3752875A JP3752875A JPS51113401A JP S51113401 A JPS51113401 A JP S51113401A JP 3752875 A JP3752875 A JP 3752875A JP 3752875 A JP3752875 A JP 3752875A JP S51113401 A JPS51113401 A JP S51113401A
Authority
JP
Japan
Prior art keywords
communication system
telephone communication
privacy telephone
privacy
digital signal
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
Application number
JP3752875A
Other languages
Japanese (ja)
Inventor
Shigeru Asakawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3752875A priority Critical patent/JPS51113401A/en
Publication of JPS51113401A publication Critical patent/JPS51113401A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:Privacy telephone communication system can unscramble scrambled digital signal without synchronous code injection.
JP3752875A 1975-03-28 1975-03-28 Privacy telephone communication system Pending JPS51113401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3752875A JPS51113401A (en) 1975-03-28 1975-03-28 Privacy telephone communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3752875A JPS51113401A (en) 1975-03-28 1975-03-28 Privacy telephone communication system

Publications (1)

Publication Number Publication Date
JPS51113401A true JPS51113401A (en) 1976-10-06

Family

ID=12500030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3752875A Pending JPS51113401A (en) 1975-03-28 1975-03-28 Privacy telephone communication system

Country Status (1)

Country Link
JP (1) JPS51113401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539404A (en) * 1976-07-14 1978-01-27 Mitsubishi Electric Corp Synchronous system
JPS5466804U (en) * 1977-10-20 1979-05-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539404A (en) * 1976-07-14 1978-01-27 Mitsubishi Electric Corp Synchronous system
JPS5466804U (en) * 1977-10-20 1979-05-12

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