JPS59191952A - 情報の秘密伝送方式 - Google Patents

情報の秘密伝送方式

Info

Publication number
JPS59191952A
JPS59191952A JP6659283A JP6659283A JPS59191952A JP S59191952 A JPS59191952 A JP S59191952A JP 6659283 A JP6659283 A JP 6659283A JP 6659283 A JP6659283 A JP 6659283A JP S59191952 A JPS59191952 A JP S59191952A
Authority
JP
Japan
Prior art keywords
spectrum
signal
information
pseudo
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.)
Granted
Application number
JP6659283A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0237145B2 (enExample
Inventor
Hidekazu Tsutsui
英一 筒井
Ryota Akiyama
良太 秋山
Akimasa Yatsuhoshi
八星　禮剛
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 JP6659283A priority Critical patent/JPS59191952A/ja
Publication of JPS59191952A publication Critical patent/JPS59191952A/ja
Publication of JPH0237145B2 publication Critical patent/JPH0237145B2/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)
JP6659283A 1983-04-15 1983-04-15 情報の秘密伝送方式 Granted JPS59191952A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6659283A JPS59191952A (ja) 1983-04-15 1983-04-15 情報の秘密伝送方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6659283A JPS59191952A (ja) 1983-04-15 1983-04-15 情報の秘密伝送方式

Publications (2)

Publication Number Publication Date
JPS59191952A true JPS59191952A (ja) 1984-10-31
JPH0237145B2 JPH0237145B2 (enExample) 1990-08-22

Family

ID=13320353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6659283A Granted JPS59191952A (ja) 1983-04-15 1983-04-15 情報の秘密伝送方式

Country Status (1)

Country Link
JP (1) JPS59191952A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216639A (ja) * 1985-07-16 1987-01-24 Kokusai Denshin Denwa Co Ltd <Kdd> 秘話音声信号送出装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0753047A (ja) * 1993-08-10 1995-02-28 Ube Ind Ltd キャップの取出方法および装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5539642U (enExample) * 1978-09-08 1980-03-14
JPS56120239A (en) * 1980-02-27 1981-09-21 Fujitsu Ltd Simple privacy telephone system
JPS5862948A (ja) * 1981-10-09 1983-04-14 Clarion Co Ltd 信号暗号処理方式

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5539642U (enExample) * 1978-09-08 1980-03-14
JPS56120239A (en) * 1980-02-27 1981-09-21 Fujitsu Ltd Simple privacy telephone system
JPS5862948A (ja) * 1981-10-09 1983-04-14 Clarion Co Ltd 信号暗号処理方式

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216639A (ja) * 1985-07-16 1987-01-24 Kokusai Denshin Denwa Co Ltd <Kdd> 秘話音声信号送出装置

Also Published As

Publication number Publication date
JPH0237145B2 (enExample) 1990-08-22

Similar Documents

Publication Publication Date Title
JPH05504666A (ja) テレビ電話装置
JPS6216639A (ja) 秘話音声信号送出装置
KR910004405B1 (ko) 비밀 통화장치
HUT74262A (en) Process and device for speech scrambling and unscrambling in speech transmission
JP2774296B2 (ja) 情報処理方法及びその装置
US3484556A (en) Bandwidth compression eliminating frequency transposition and overcoming phase ambiguity
JPS59191952A (ja) 情報の秘密伝送方式
US4773092A (en) Speech scramblers
KR0154793B1 (ko) 무선전화기의 비화회로 및 역비화회로
US4133977A (en) Voice scrambler using syllabic masking
US5226083A (en) Communication apparatus for speech signal
AU3087900A (en) Noise suppression in a mobile communications system
US3647970A (en) Method and system for simplifying speech waveforms
Ansari et al. Transmultiplexer design using all-pass filters
JPH0316334A (ja) 秘話装置
JPS59122135A (ja) 音声圧縮伝送方式
Huang et al. Time sample speech scrambler which does not require synchronization
JPH082047B2 (ja) 秘話装置
RU2546614C1 (ru) Способ маскирования аналоговых речевых сигналов
Brooksbank et al. Two multiplierless designs for MF receivers
Kukush et al. Research into the use of scramblers in narrowband communication systems
JPS61156936A (ja) 秘話装置
Power Psychology of language
JPH0787032A (ja) 帯域圧縮処理器、帯域伸張処理器および音声通信装置
JPS5975731A (ja) 秘話通信方式