JPH0349221B2 - - Google Patents

Info

Publication number
JPH0349221B2
JPH0349221B2 JP23356982A JP23356982A JPH0349221B2 JP H0349221 B2 JPH0349221 B2 JP H0349221B2 JP 23356982 A JP23356982 A JP 23356982A JP 23356982 A JP23356982 A JP 23356982A JP H0349221 B2 JPH0349221 B2 JP H0349221B2
Authority
JP
Japan
Prior art keywords
signal
divisions
frequency
same number
audio
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.)
Expired
Application number
JP23356982A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59125134A (ja
Inventor
Masashi Mizuno
Yoshisuke Chiba
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP23356982A priority Critical patent/JPS59125134A/ja
Publication of JPS59125134A publication Critical patent/JPS59125134A/ja
Publication of JPH0349221B2 publication Critical patent/JPH0349221B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
JP23356982A 1982-12-29 1982-12-29 秘話装置 Granted JPS59125134A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23356982A JPS59125134A (ja) 1982-12-29 1982-12-29 秘話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23356982A JPS59125134A (ja) 1982-12-29 1982-12-29 秘話装置

Publications (2)

Publication Number Publication Date
JPS59125134A JPS59125134A (ja) 1984-07-19
JPH0349221B2 true JPH0349221B2 (enrdf_load_stackoverflow) 1991-07-26

Family

ID=16957124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23356982A Granted JPS59125134A (ja) 1982-12-29 1982-12-29 秘話装置

Country Status (1)

Country Link
JP (1) JPS59125134A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61156936A (ja) * 1984-12-27 1986-07-16 Japan Radio Co Ltd 秘話装置
CA1288182C (en) * 1987-06-02 1991-08-27 Mitsuhiro Azuma Secret speech equipment

Also Published As

Publication number Publication date
JPS59125134A (ja) 1984-07-19

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