JPS59229944A - 秘話伝送方式 - Google Patents

秘話伝送方式

Info

Publication number
JPS59229944A
JPS59229944A JP10421383A JP10421383A JPS59229944A JP S59229944 A JPS59229944 A JP S59229944A JP 10421383 A JP10421383 A JP 10421383A JP 10421383 A JP10421383 A JP 10421383A JP S59229944 A JPS59229944 A JP S59229944A
Authority
JP
Japan
Prior art keywords
signal
spectrum
zone
frequency
zones
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
JP10421383A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0147061B2 (enrdf_load_stackoverflow
Inventor
Seishichi Kishi
政七 岸
Seizo Seki
関 清三
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10421383A priority Critical patent/JPS59229944A/ja
Publication of JPS59229944A publication Critical patent/JPS59229944A/ja
Publication of JPH0147061B2 publication Critical patent/JPH0147061B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00Secret communication
    • H04K1/04Secret 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)
JP10421383A 1983-06-13 1983-06-13 秘話伝送方式 Granted JPS59229944A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10421383A JPS59229944A (ja) 1983-06-13 1983-06-13 秘話伝送方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10421383A JPS59229944A (ja) 1983-06-13 1983-06-13 秘話伝送方式

Publications (2)

Publication Number Publication Date
JPS59229944A true JPS59229944A (ja) 1984-12-24
JPH0147061B2 JPH0147061B2 (enrdf_load_stackoverflow) 1989-10-12

Family

ID=14374678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10421383A Granted JPS59229944A (ja) 1983-06-13 1983-06-13 秘話伝送方式

Country Status (1)

Country Link
JP (1) JPS59229944A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0147061B2 (enrdf_load_stackoverflow) 1989-10-12

Similar Documents

Publication Publication Date Title
FI92004B (fi) Kaksisuuntainen analogiasekoittaja
US3808536A (en) Communication scrambler system
EP0111937B1 (en) Privacy signal transmission system
JPS59107658A (ja) 秘話送受信装置
JPS6128250A (ja) 秘話通信装置
JPS59229944A (ja) 秘話伝送方式
JPH0326577B2 (enrdf_load_stackoverflow)
JPH09148984A (ja) 無線電話機の秘話及び逆秘話回路
JPH0446025B2 (enrdf_load_stackoverflow)
JPH0147062B2 (enrdf_load_stackoverflow)
JPH0316334A (ja) 秘話装置
JPH04347947A (ja) 周波数反転通信方式
JPS6143032A (ja) 秘話装置
JPH0347025B2 (enrdf_load_stackoverflow)
EP0139496A2 (en) A radio transmission system for a phase modulation signal
JPS5975731A (ja) 秘話通信方式
JPH0378813B2 (enrdf_load_stackoverflow)
JPH0446026B2 (enrdf_load_stackoverflow)
JPS60208132A (ja) 暗号化兼解読方式
JPH05244121A (ja) 秘話通信装置
JPH0242259B2 (enrdf_load_stackoverflow)
JPS63114330A (ja) 秘話通信装置
JPH0355062B2 (enrdf_load_stackoverflow)
JPH02171047A (ja) 秘話装置
JPH0332127A (ja) 秘話通信方式