JPS643104B2 - - Google Patents
Info
- Publication number
- JPS643104B2 JPS643104B2 JP22624683A JP22624683A JPS643104B2 JP S643104 B2 JPS643104 B2 JP S643104B2 JP 22624683 A JP22624683 A JP 22624683A JP 22624683 A JP22624683 A JP 22624683A JP S643104 B2 JPS643104 B2 JP S643104B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- synchronization
- phase
- 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.)
- Expired
Links
- 230000005236 sound signal Effects 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/006—Secret communication by varying or inverting the phase, at periodic or random intervals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22624683A JPS60117932A (ja) | 1983-11-30 | 1983-11-30 | 秘話通信装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22624683A JPS60117932A (ja) | 1983-11-30 | 1983-11-30 | 秘話通信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60117932A JPS60117932A (ja) | 1985-06-25 |
JPS643104B2 true JPS643104B2 (enrdf_load_stackoverflow) | 1989-01-19 |
Family
ID=16842180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22624683A Granted JPS60117932A (ja) | 1983-11-30 | 1983-11-30 | 秘話通信装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60117932A (enrdf_load_stackoverflow) |
-
1983
- 1983-11-30 JP JP22624683A patent/JPS60117932A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60117932A (ja) | 1985-06-25 |
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