JPS6154730A - 秘話方式 - Google Patents
秘話方式Info
- Publication number
- JPS6154730A JPS6154730A JP17619584A JP17619584A JPS6154730A JP S6154730 A JPS6154730 A JP S6154730A JP 17619584 A JP17619584 A JP 17619584A JP 17619584 A JP17619584 A JP 17619584A JP S6154730 A JPS6154730 A JP S6154730A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- output
- double
- balanced modulator
- 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
Links
- 238000001228 spectrum Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000005236 sound signal Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims 4
- 239000002131 composite material Substances 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003786 synthesis reaction 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 |
---|---|---|---|
JP17619584A JPS6154730A (ja) | 1984-08-24 | 1984-08-24 | 秘話方式 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17619584A JPS6154730A (ja) | 1984-08-24 | 1984-08-24 | 秘話方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6154730A true JPS6154730A (ja) | 1986-03-19 |
JPH034144B2 JPH034144B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-01-22 |
Family
ID=16009293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17619584A Granted JPS6154730A (ja) | 1984-08-24 | 1984-08-24 | 秘話方式 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6154730A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1984
- 1984-08-24 JP JP17619584A patent/JPS6154730A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH034144B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-01-22 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |