JPS60117932A - 秘話通信装置 - Google Patents
秘話通信装置Info
- Publication number
 - JPS60117932A JPS60117932A JP22624683A JP22624683A JPS60117932A JP S60117932 A JPS60117932 A JP S60117932A JP 22624683 A JP22624683 A JP 22624683A JP 22624683 A JP22624683 A JP 22624683A JP S60117932 A JPS60117932 A JP S60117932A
 - Authority
 - JP
 - Japan
 - Prior art keywords
 - signal
 - phase
 - circuit
 - synchronization
 - inverted
 - 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
- 230000005236 sound signal Effects 0.000 claims abstract description 27
 - 230000005540 biological transmission Effects 0.000 claims description 2
 - 238000010586 diagram Methods 0.000 description 5
 - 238000000034 method Methods 0.000 description 5
 - 238000001514 detection method Methods 0.000 description 4
 - 239000003990 capacitor Substances 0.000 description 3
 - 230000002159 abnormal effect Effects 0.000 description 2
 - 230000007423 decrease Effects 0.000 description 1
 - 230000000630 rising effect Effects 0.000 description 1
 - 238000005070 sampling Methods 0.000 description 1
 - 230000001360 synchronised effect Effects 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 true JPS60117932A (ja) | 1985-06-25 | 
| JPS643104B2 JPS643104B2 (forum.php) | 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 (forum.php) | 
- 
        1983
        
- 1983-11-30 JP JP22624683A patent/JPS60117932A/ja active Granted
 
 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPS643104B2 (forum.php) | 1989-01-19 | 
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