JPS5216904A - Private talk device - Google Patents

Private talk device

Info

Publication number
JPS5216904A
JPS5216904A JP9206975A JP9206975A JPS5216904A JP S5216904 A JPS5216904 A JP S5216904A JP 9206975 A JP9206975 A JP 9206975A JP 9206975 A JP9206975 A JP 9206975A JP S5216904 A JPS5216904 A JP S5216904A
Authority
JP
Japan
Prior art keywords
talk device
private talk
disturbance
private
frequency
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
JP9206975A
Other languages
Japanese (ja)
Inventor
Koichi Watamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9206975A priority Critical patent/JPS5216904A/en
Publication of JPS5216904A publication Critical patent/JPS5216904A/en
Pending 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)

Abstract

PURPOSE:To increase confidence by adding voice pitch disturbance by a delay time and frequency disturbance by a frequency deviation to a voice current and using a pseudodisturbance pulse as a distrubance cycle.
JP9206975A 1975-07-30 1975-07-30 Private talk device Pending JPS5216904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9206975A JPS5216904A (en) 1975-07-30 1975-07-30 Private talk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9206975A JPS5216904A (en) 1975-07-30 1975-07-30 Private talk device

Publications (1)

Publication Number Publication Date
JPS5216904A true JPS5216904A (en) 1977-02-08

Family

ID=14044163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9206975A Pending JPS5216904A (en) 1975-07-30 1975-07-30 Private talk device

Country Status (1)

Country Link
JP (1) JPS5216904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6470647A (en) * 1987-09-10 1989-03-16 Mitsubishi Electric Corp Air preheater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6470647A (en) * 1987-09-10 1989-03-16 Mitsubishi Electric Corp Air preheater

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