JPH022337B2 - - Google Patents
Info
- Publication number
- JPH022337B2 JPH022337B2 JP16453584A JP16453584A JPH022337B2 JP H022337 B2 JPH022337 B2 JP H022337B2 JP 16453584 A JP16453584 A JP 16453584A JP 16453584 A JP16453584 A JP 16453584A JP H022337 B2 JPH022337 B2 JP H022337B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- output
- inverted signal
- bit pattern
- 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
Links
- 238000004891 communication Methods 0.000 claims description 14
- 230000005236 sound signal Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16453584A JPS6143032A (ja) | 1984-08-06 | 1984-08-06 | 秘話装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16453584A JPS6143032A (ja) | 1984-08-06 | 1984-08-06 | 秘話装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6143032A JPS6143032A (ja) | 1986-03-01 |
JPH022337B2 true JPH022337B2 (enrdf_load_stackoverflow) | 1990-01-17 |
Family
ID=15795003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16453584A Granted JPS6143032A (ja) | 1984-08-06 | 1984-08-06 | 秘話装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6143032A (enrdf_load_stackoverflow) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0666758B2 (ja) * | 1986-05-12 | 1994-08-24 | 八重洲無線株式会社 | 秘話装置 |
JPS62290225A (ja) * | 1986-06-10 | 1987-12-17 | Pioneer Answerphone Mfg Corp | 狭帯域伝送系のスクランブル・デスクランブル方式 |
JPS6430343A (en) * | 1987-07-27 | 1989-02-01 | Nec Corp | Secret call communicating equipment |
JP2001308828A (ja) * | 2000-04-24 | 2001-11-02 | Temuko Japan:Kk | 無線機における秘話化方法及び秘話化装置 |
-
1984
- 1984-08-06 JP JP16453584A patent/JPS6143032A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6143032A (ja) | 1986-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS61156935A (ja) | デイジタル無線送信システムにおけるメツセージ送信のための方法と装置 | |
US5142692A (en) | Transmitting information with cut and flip spectrum | |
CA1204188A (en) | Privacy signal transmission system | |
JPH022337B2 (enrdf_load_stackoverflow) | ||
JPH04101527A (ja) | 秘話通信装置 | |
JP2674726B2 (ja) | スペクトル拡散通信装置 | |
JPS6046148A (ja) | 反転秘話無線通信方式 | |
US20010003704A1 (en) | Method and apparatus for transmitting information by radio | |
JPH0147062B2 (enrdf_load_stackoverflow) | ||
JPH04347947A (ja) | 周波数反転通信方式 | |
JPH034144B2 (enrdf_load_stackoverflow) | ||
JPH08274753A (ja) | 秘話方法、送信機および受信機 | |
JPS6148246A (ja) | 無線電話用秘話装置 | |
JPS5950628A (ja) | 周波数ダイバ−シチ方式 | |
JPH02250444A (ja) | 秘話装置 | |
JPS61144141A (ja) | 送信装置 | |
JPH0666758B2 (ja) | 秘話装置 | |
JPH05227130A (ja) | コードレス電話 | |
JPH0149217B2 (enrdf_load_stackoverflow) | ||
JPH0149216B2 (enrdf_load_stackoverflow) | ||
WO1999065200A2 (en) | Procedure and device for transmitting information by radio | |
JPH0158701B2 (enrdf_load_stackoverflow) | ||
JPH04274629A (ja) | 周波数ホッピング方式のスペクトル拡散通信装置 | |
JPS6221340A (ja) | 秘話通信装置の信号同期回路 | |
JPH04207427A (ja) | スペクトラム拡散通信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |