DK133649B - Method for coded information transmission by time exchange of information elements. - Google Patents
Method for coded information transmission by time exchange of information elements.Info
- Publication number
- DK133649B DK133649B DK329471AA DK329471A DK133649B DK 133649 B DK133649 B DK 133649B DK 329471A A DK329471A A DK 329471AA DK 329471 A DK329471 A DK 329471A DK 133649 B DK133649 B DK 133649B
- Authority
- DK
- Denmark
- Prior art keywords
- time exchange
- information transmission
- coded
- information elements
- elements
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/34—Bits, or blocks of bits, of the telegraphic message being interchanged in time
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1022770A CH518658A (en) | 1970-07-07 | 1970-07-07 | Process for encrypted message transmission by interchanging information elements over time |
Publications (2)
Publication Number | Publication Date |
---|---|
DK133649B true DK133649B (en) | 1976-06-21 |
DK133649C DK133649C (en) | 1976-11-08 |
Family
ID=4360828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK329471AA DK133649B (en) | 1970-07-07 | 1971-07-05 | Method for coded information transmission by time exchange of information elements. |
Country Status (12)
Country | Link |
---|---|
US (1) | US3773977A (en) |
JP (1) | JPS583426B1 (en) |
AT (1) | AT327293B (en) |
BE (1) | BE769493A (en) |
CH (1) | CH518658A (en) |
DE (1) | DE2046630C3 (en) |
DK (1) | DK133649B (en) |
ES (1) | ES392921A1 (en) |
FR (1) | FR2101561A5 (en) |
GB (1) | GB1356970A (en) |
NL (1) | NL167818C (en) |
SE (1) | SE363946B (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3921151A (en) * | 1971-06-21 | 1975-11-18 | Patelhold Patentwerwertungs & | Apparatus for enciphering transmitted data by interchanging signal elements of the transmitted data without overlapping or omitting any elements within the transmitted signal train |
US4020285A (en) * | 1972-09-29 | 1977-04-26 | Datotek, Inc. | Voice security method and system |
US3991271A (en) * | 1972-09-29 | 1976-11-09 | Datotek, Inc. | Voice security method and system |
CH574692A5 (en) * | 1973-02-13 | 1976-04-15 | Gretag Ag | |
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 | |
CH580893A5 (en) * | 1973-07-02 | 1976-10-15 | Gretag Ag | |
DE2339685C2 (en) * | 1973-08-06 | 1982-06-03 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circuit arrangement for the disguised transmission of communication signals |
DE2359673C2 (en) * | 1973-11-30 | 1982-05-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Method for disguising the information content of frequency bands |
DE2426635A1 (en) * | 1974-06-01 | 1975-12-11 | Licentia Gmbh | Signal content scrambling method - consecutive time sections or representation signals are separately stored |
CH578807A5 (en) * | 1974-11-05 | 1976-08-13 | Patelhold Patentverwertung | |
DE2455477C3 (en) * | 1974-11-23 | 1982-08-26 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Method for concealing speech by interchanging the speech segments over time |
CH581412A5 (en) * | 1975-02-26 | 1976-10-29 | Patelhold Patentverwertung | |
US4004089A (en) * | 1975-02-28 | 1977-01-18 | Ncr Corporation | Programmable cryptic device for enciphering and deciphering data |
US4099027A (en) * | 1976-01-02 | 1978-07-04 | General Electric Company | Speech scrambler |
CH607506A5 (en) * | 1976-06-01 | 1978-12-29 | Europ Handelsges Anst | |
US4087626A (en) * | 1976-08-04 | 1978-05-02 | Rca Corporation | Scrambler and unscrambler for serial data |
US4217469A (en) * | 1977-03-15 | 1980-08-12 | Emilio Martelli | Coding and decoding apparatus for the protection of communication secrecy |
US4100374A (en) * | 1977-04-11 | 1978-07-11 | Bell Telephone Laboratories, Incorporated | Uniform permutation privacy system |
GB1553027A (en) * | 1977-05-12 | 1979-09-19 | Marconi Co Ltd | Message signal scrambling apparatus |
DE2809719C3 (en) * | 1978-03-07 | 1985-03-14 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Procedure to increase security against unauthorized decryption of encrypted speech |
US4232194A (en) * | 1979-03-16 | 1980-11-04 | Ocean Technology, Inc. | Voice encryption system |
US4278840A (en) * | 1979-03-23 | 1981-07-14 | Datotek, Inc. | Dynamic frequency and time voice encryption system and method |
FR2454664A1 (en) * | 1979-04-20 | 1980-11-14 | Telediffusion Fse | SYSTEM FOR ENCRYPTION AND DECRYPTION OF AN ANALOGUE SIGNAL BY TIME COMPRESSIONS AND EXPANSIONS |
US4295223A (en) * | 1979-04-25 | 1981-10-13 | Westinghouse Electric Corp. | Digital signal/noise ratio amplifier apparatus for a communication system |
US4266243A (en) * | 1979-04-25 | 1981-05-05 | Westinghouse Electric Corp. | Scrambling system for television sound signals |
US4318125A (en) * | 1979-04-25 | 1982-03-02 | Westinghouse Electric Corp. | Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system |
DE3138523A1 (en) * | 1981-09-28 | 1983-04-07 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR TAKE-OFF SECURE FREQUENCY BAND-COMPRESSED TRANSMISSION OF VOICE SIGNALS |
US4965825A (en) | 1981-11-03 | 1990-10-23 | The Personalized Mass Media Corporation | Signal processing apparatus and methods |
US7831204B1 (en) | 1981-11-03 | 2010-11-09 | Personalized Media Communications, Llc | Signal processing apparatus and methods |
USRE47642E1 (en) | 1981-11-03 | 2019-10-08 | Personalized Media Communications LLC | Signal processing apparatus and methods |
US4433211A (en) * | 1981-11-04 | 1984-02-21 | Technical Communications Corporation | Privacy communication system employing time/frequency transformation |
DE3207040A1 (en) * | 1982-02-26 | 1983-09-08 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND ARRANGEMENT FOR TRANSMITTING CHARACTERS |
US4591673A (en) * | 1982-05-10 | 1986-05-27 | Lee Lin Shan | Frequency or time domain speech scrambling technique and system which does not require any frame synchronization |
US4661980A (en) * | 1982-06-25 | 1987-04-28 | The United States Of America As Represented By The Secretary Of The Navy | Intercept resistant data transmission system |
IT1156086B (en) * | 1982-10-25 | 1987-01-28 | Cselt Centro Studi Lab Telecom | METHOD AND STORAGE DEVICE OF NUMERICAL SIGNALS ORGANIZED IN A THREE-DIMENSIONAL WAY AND SUBJECT TO ORTHOGONAL TRANSFORMATIONS |
US4551580A (en) * | 1982-11-22 | 1985-11-05 | At&T Bell Laboratories | Time-frequency scrambler |
US4608456A (en) * | 1983-05-27 | 1986-08-26 | M/A-Com Linkabit, Inc. | Digital audio scrambling system with error conditioning |
US4642688A (en) * | 1983-06-24 | 1987-02-10 | Scientific Atlanta, Inc. | Method and apparatus for creating encrypted and decrypted television signals |
US4638357A (en) * | 1984-01-20 | 1987-01-20 | Home Box Office, Inc. | Audio scrambler |
US5253296A (en) * | 1991-11-26 | 1993-10-12 | Communication Electronics | System for resisting interception of information |
US5412719A (en) * | 1992-01-17 | 1995-05-02 | Hitachi, Ltd. | Radio paging system with voice transfer function and radio pager |
ATE331360T1 (en) * | 2000-09-20 | 2006-07-15 | Yutaka Yasukura | ENCRYPTION AND DECRYPTION METHODS OF ELECTRONIC INFORMATION USING RANDOM PERMUTATIONS |
DE10138650A1 (en) * | 2001-08-07 | 2003-02-27 | Fraunhofer Ges Forschung | Method and device for encrypting a discrete signal and method and device for decoding |
US7930331B2 (en) * | 2005-09-26 | 2011-04-19 | Temarylogic Llc | Encipherment of digital sequences by reversible transposition methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1953918A (en) * | 1932-03-28 | 1934-04-10 | Associated Electric Lab Inc | Cryptographic system and apparatus |
US2453659A (en) * | 1941-09-05 | 1948-11-09 | Gutzwiller & Co E | Secret telegraph signaling |
US2547515A (en) * | 1949-06-23 | 1951-04-03 | Teletype Corp | Secrecy system |
US3657699A (en) * | 1970-06-30 | 1972-04-18 | Ibm | Multipath encoder-decoder arrangement |
-
1970
- 1970-07-07 CH CH1022770A patent/CH518658A/en not_active IP Right Cessation
- 1970-09-22 DE DE2046630A patent/DE2046630C3/en not_active Expired
-
1971
- 1971-04-20 AT AT335471A patent/AT327293B/en not_active IP Right Cessation
- 1971-05-28 GB GB1814671A patent/GB1356970A/en not_active Expired
- 1971-06-21 US US00154851A patent/US3773977A/en not_active Expired - Lifetime
- 1971-07-05 ES ES392921A patent/ES392921A1/en not_active Expired
- 1971-07-05 DK DK329471AA patent/DK133649B/en not_active IP Right Cessation
- 1971-07-05 FR FR7125390A patent/FR2101561A5/fr not_active Expired
- 1971-07-05 BE BE769493A patent/BE769493A/en not_active IP Right Cessation
- 1971-07-05 SE SE08682/71A patent/SE363946B/xx unknown
- 1971-07-06 NL NL7109284A patent/NL167818C/en not_active IP Right Cessation
- 1971-07-07 JP JP46049645A patent/JPS583426B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1356970A (en) | 1974-06-19 |
DE2046630B2 (en) | 1974-08-08 |
CH518658A (en) | 1972-01-31 |
NL7109284A (en) | 1972-01-11 |
AT327293B (en) | 1976-01-26 |
JPS583426B1 (en) | 1983-01-21 |
NL167818B (en) | 1981-08-17 |
DK133649C (en) | 1976-11-08 |
ES392921A1 (en) | 1973-11-01 |
SE363946B (en) | 1974-02-04 |
DE2046630A1 (en) | 1972-01-20 |
ATA335471A (en) | 1975-04-15 |
NL167818C (en) | 1982-01-18 |
FR2101561A5 (en) | 1972-03-31 |
DE2046630C3 (en) | 1975-03-20 |
BE769493A (en) | 1971-11-16 |
US3773977A (en) | 1973-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK133649B (en) | Method for coded information transmission by time exchange of information elements. | |
DK140623B (en) | Method for making microcapsules. | |
DK158672C (en) | METHOD FOR PREPARING 3-SUBSTITUTED-METHYL-7-METHOXY-7BETA- (2-SUBSTITUTED-AMIDO) -3-CEPHEM-4-CARBOXYLY ACID AND ALKALIMETAL SALTS. | |
DK130874B (en) | Method for making microcapsules. | |
DK125597B (en) | Method of purifying L-asparaginase. | |
DK133621B (en) | Process for making beer. | |
DK134483B (en) | Method for isolating (+) - trans-chrysanthemic acid. | |
DK125188B (en) | Method for making small capsules. | |
DK134566B (en) | Method for dewaxing oil. | |
DK131132B (en) | Method for making small capsules. | |
DK130920B (en) | Process for the preparation of optical enantiomers of alpha1-tert-butylaminomethyl-4-hydroxy-m-xylene-alpha1, alpha3-diol. | |
DK131587B (en) | Method for manufacturing a flexible waveguide. | |
DK125527B (en) | Method for making small capsules. | |
DK132149B (en) | Communication system for information transfer between two terminal stations by means of pulse code modulation. | |
NL171905C (en) | METHOD FOR PREPARING POLYURETHANS | |
DK139576B (en) | Process for the isolation of alpha-6-deoxy-5-oxytetracycline. | |
DK131327B (en) | Method for making microcapsules. | |
DK135956B (en) | Process for making beer. | |
DK128391B (en) | Method for making plant bases. | |
DK127166B (en) | Process for recovering amylase inhibitor. | |
DK130144B (en) | Sheet pairs for producing slides. | |
DK128170B (en) | Method for producing a coating on a carriageway of steel plates. | |
DK128470B (en) | Method for manufacturing heaters. | |
DK131833B (en) | Method for producing an electrophotographic plate. | |
DK125306B (en) | Method for making anti-inflammatory suppositories. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |