CH379579A - Einrichtung zur verschleierten Übertragung von Sprechsignalen - Google Patents
Einrichtung zur verschleierten Übertragung von SprechsignalenInfo
- Publication number
- CH379579A CH379579A CH481960A CH481960A CH379579A CH 379579 A CH379579 A CH 379579A CH 481960 A CH481960 A CH 481960A CH 481960 A CH481960 A CH 481960A CH 379579 A CH379579 A CH 379579A
- Authority
- CH
- Switzerland
- Prior art keywords
- disguised
- transmission
- speech signals
- speech
- signals
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 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)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Telephonic Communication Services (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH481960A CH379579A (de) | 1960-04-28 | 1960-04-28 | Einrichtung zur verschleierten Übertragung von Sprechsignalen |
| DE1960P0024996 DE1114548B (de) | 1960-04-28 | 1960-05-13 | Einrichtung zur verschleierten UEbertragung von Sprachsignalen |
| FR69041357A FR1284800A (fr) | 1960-04-28 | 1961-03-15 | Dispositif de transmission codée de signaux téléphoniques |
| GB1507761A GB929251A (en) | 1960-04-28 | 1961-04-26 | Arrangement for the secret transmission of intelligence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH481960A CH379579A (de) | 1960-04-28 | 1960-04-28 | Einrichtung zur verschleierten Übertragung von Sprechsignalen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH379579A true CH379579A (de) | 1964-07-15 |
Family
ID=4283079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH481960A CH379579A (de) | 1960-04-28 | 1960-04-28 | Einrichtung zur verschleierten Übertragung von Sprechsignalen |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH379579A (fr) |
| DE (1) | DE1114548B (fr) |
| FR (1) | FR1284800A (fr) |
| GB (1) | GB929251A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3746799A (en) * | 1971-09-27 | 1973-07-17 | Us Navy | Method and apparatus for encoding and decoding analog signals |
| CN108234062A (zh) * | 2017-12-19 | 2018-06-29 | 中国电子科技集团公司第三十研究所 | 一种基于空口信号特征复杂化的安全传输方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH311424A (de) * | 1950-04-22 | 1955-11-30 | Gretener Edgar Ing Dr | Verfahren zur Geheimhaltung von Sprache in Nachrichtenübermittlungskanälen. |
| GB780866A (en) * | 1954-11-18 | 1957-08-07 | Marconi Wireless Telegraph Co | Improvements in or relating to secret telephone systems |
-
1960
- 1960-04-28 CH CH481960A patent/CH379579A/de unknown
- 1960-05-13 DE DE1960P0024996 patent/DE1114548B/de active Pending
-
1961
- 1961-03-15 FR FR69041357A patent/FR1284800A/fr not_active Expired
- 1961-04-26 GB GB1507761A patent/GB929251A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB929251A (en) | 1963-06-19 |
| FR1284800A (fr) | 1962-02-16 |
| DE1114548B (de) | 1961-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1307476A (fr) | Amplificateur sélecteur de fréquences | |
| CH400241A (de) | Signalübertragungseinrichtung | |
| CH426932A (de) | Ubertragungsanlage zur Übertragung von Impulssignalen | |
| CH417699A (de) | Einrichtung zur Übermittlung digitaler Information | |
| CH399532A (de) | Einrichtung zur Übertragung von Daten | |
| CH384909A (de) | Einrichtung zur Übertragung von gespeicherten Signalen | |
| CH379579A (de) | Einrichtung zur verschleierten Übertragung von Sprechsignalen | |
| CH381453A (de) | Einrichtung zur Speicherung und Übermittlung von Signalen | |
| CH390011A (de) | Druckdichte Flanschverbindung | |
| FR1269306A (fr) | Castreur pour porcs | |
| CH434376A (de) | Einrichtung zur Übertragung von Signalen | |
| FR1310121A (fr) | Inhibiteurs de polymérisation | |
| CH401149A (de) | Datenübertragungsvorrichtung | |
| CA610182A (en) | Acylation of amines | |
| CH408122A (de) | Elektroakustische Übertragungsanlage | |
| FR1259182A (fr) | Perfectionnement aux charnières | |
| CA590943A (en) | Properties of hydrocarbons | |
| CH395188A (de) | Signalübertragungsanlage | |
| FR77164E (fr) | Signal de pré-stationnement | |
| BE601969A (fr) | Pénicillines | |
| BE599717A (fr) | Cullotte ou couche-culotte | |
| CA591254A (en) | Polymers of n-acrylylpyrrolidine | |
| CA608251A (en) | Para-aminobenzoates of ethynylcarbinols | |
| AU260857B2 (en) | Improvements inthe treatment of liquids | |
| CA598312A (en) | Signal device |