NL164165C - SYSTEM FOR THE SECRET TRANSFER OF MESSAGES. - Google Patents
SYSTEM FOR THE SECRET TRANSFER OF MESSAGES.Info
- Publication number
- NL164165C NL164165C NL7513495.A NL7513495A NL164165C NL 164165 C NL164165 C NL 164165C NL 7513495 A NL7513495 A NL 7513495A NL 164165 C NL164165 C NL 164165C
- Authority
- NL
- Netherlands
- Prior art keywords
- messages
- secret transfer
- secret
- transfer
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2455477A DE2455477C3 (en) | 1974-11-23 | 1974-11-23 | Method for concealing speech by interchanging the speech segments over time |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7513495A NL7513495A (en) | 1976-05-25 |
NL164165B NL164165B (en) | 1980-06-16 |
NL164165C true NL164165C (en) | 1980-11-17 |
Family
ID=5931540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7513495.A NL164165C (en) | 1974-11-23 | 1975-11-19 | SYSTEM FOR THE SECRET TRANSFER OF MESSAGES. |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT343722B (en) |
BE (1) | BE835826A (en) |
CH (1) | CH604433A5 (en) |
DE (1) | DE2455477C3 (en) |
DK (1) | DK146748C (en) |
FR (1) | FR2292386A1 (en) |
GB (1) | GB1515937A (en) |
NL (1) | NL164165C (en) |
SE (1) | SE403023B (en) |
ZA (1) | ZA757335B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2704822C3 (en) * | 1977-02-05 | 1980-10-23 | Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg | Method for voice encryption according to the time scrambling method |
DE2809719C3 (en) * | 1978-03-07 | 1985-03-14 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Procedure to increase security against unauthorized decryption of encrypted speech |
CA1226914A (en) * | 1984-01-26 | 1987-09-15 | The University Of British Columbia | Modem for pseudo noise communication on a.c. lines |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1076733B (en) * | 1958-05-29 | 1960-03-03 | Telefunken Gmbh | Arrangement to ensure the synchronous operation of the key-character generators on the sending and receiving side during the secret transmission of coded message signals |
NL244086A (en) * | 1958-12-10 | |||
CH402937A (en) * | 1961-08-18 | 1965-11-30 | Gretag Ag | Method for encrypting messages transmitted in pulses |
CH411030A (en) * | 1964-08-06 | 1966-04-15 | Patelhold Patentverwertung | Device for encrypting a pulse-shaped message |
CH435363A (en) * | 1965-11-26 | 1967-05-15 | Patelhold Patentverwertung | Device for synchronization of pulse generators |
CH518658A (en) * | 1970-07-07 | 1972-01-31 | Patelhold Patentverwaltungs Un | Process for encrypted message transmission by interchanging information elements over time |
CH524287A (en) * | 1970-09-25 | 1972-06-15 | Patelhold Patentverwertung | Method for the automatic setting of a transversal filter for pulse equalization |
CH558993A (en) * | 1973-03-19 | 1975-02-14 | Patelhold Patentverwertung | PROCEDURE AND DEVICE FOR ENCRYPTED MESSAGE TRANSMISSION. |
CH559483A5 (en) * | 1973-06-12 | 1975-02-28 | Patelhold Patentverwertung | |
DE2704822C3 (en) * | 1977-02-05 | 1980-10-23 | Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg | Method for voice encryption according to the time scrambling method |
-
1974
- 1974-11-23 DE DE2455477A patent/DE2455477C3/en not_active Expired
-
1975
- 1975-11-19 NL NL7513495.A patent/NL164165C/en not_active IP Right Cessation
- 1975-11-20 CH CH1505775A patent/CH604433A5/xx not_active IP Right Cessation
- 1975-11-21 BE BE162083A patent/BE835826A/en not_active IP Right Cessation
- 1975-11-21 SE SE7513112A patent/SE403023B/en not_active IP Right Cessation
- 1975-11-21 FR FR7535581A patent/FR2292386A1/en active Granted
- 1975-11-21 AT AT888375A patent/AT343722B/en not_active IP Right Cessation
- 1975-11-21 DK DK526975A patent/DK146748C/en not_active IP Right Cessation
- 1975-11-24 ZA ZA757335A patent/ZA757335B/en unknown
- 1975-11-24 GB GB48228/75A patent/GB1515937A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA757335B (en) | 1977-06-29 |
AT343722B (en) | 1978-06-12 |
DE2455477B2 (en) | 1977-08-25 |
ATA888375A (en) | 1977-10-15 |
FR2292386B1 (en) | 1980-02-08 |
FR2292386A1 (en) | 1976-06-18 |
GB1515937A (en) | 1978-06-28 |
NL164165B (en) | 1980-06-16 |
NL7513495A (en) | 1976-05-25 |
CH604433A5 (en) | 1978-09-15 |
SE403023B (en) | 1978-07-24 |
DK146748B (en) | 1983-12-19 |
SE7513112L (en) | 1976-05-24 |
DK146748C (en) | 1984-05-28 |
DE2455477A1 (en) | 1976-05-26 |
DK526975A (en) | 1976-05-24 |
DE2455477C3 (en) | 1982-08-26 |
AU8689875A (en) | 1977-06-02 |
BE835826A (en) | 1976-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee |