JPH0147061B2 - - Google Patents
Info
- Publication number
- JPH0147061B2 JPH0147061B2 JP10421383A JP10421383A JPH0147061B2 JP H0147061 B2 JPH0147061 B2 JP H0147061B2 JP 10421383 A JP10421383 A JP 10421383A JP 10421383 A JP10421383 A JP 10421383A JP H0147061 B2 JPH0147061 B2 JP H0147061B2
- Authority
- JP
- Japan
- Prior art keywords
- spectrum
- zone
- signal
- 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.)
- Expired
Links
- 238000001228 spectrum Methods 0.000 claims description 45
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000006467 substitution 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 |
|---|---|---|---|
| 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 JPS59229944A (ja) | 1984-12-24 |
| JPH0147061B2 true JPH0147061B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1983
- 1983-06-13 JP JP10421383A patent/JPS59229944A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59229944A (ja) | 1984-12-24 |