ES2104701T3 - Sistema para evitar que un mezclador de caracteres genere simbolos no deseados. - Google Patents
Sistema para evitar que un mezclador de caracteres genere simbolos no deseados.Info
- Publication number
- ES2104701T3 ES2104701T3 ES91908134T ES91908134T ES2104701T3 ES 2104701 T3 ES2104701 T3 ES 2104701T3 ES 91908134 T ES91908134 T ES 91908134T ES 91908134 T ES91908134 T ES 91908134T ES 2104701 T3 ES2104701 T3 ES 2104701T3
- Authority
- ES
- Spain
- Prior art keywords
- character
- pct
- characters
- prevent
- encoded
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
-
- 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
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
-
- 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
- H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
-
- 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
- H04L9/36—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols with means for detecting characters not meant for transmission
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Details Of Television Scanning (AREA)
- Noise Elimination (AREA)
- Optical Communication System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Eye Examination Apparatus (AREA)
- Superheterodyne Receivers (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Liquid Developers In Electrophotography (AREA)
- Radar Systems Or Details Thereof (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Burglar Alarm Systems (AREA)
- Computer And Data Communications (AREA)
- Control Of Amplification And Gain Control (AREA)
- Studio Circuits (AREA)
- Surgical Instruments (AREA)
- Endoscopes (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
SE DESCRIBE UN SISTEMA DE TELECOMUNICACION EN QUE CADA UNO DE LOS CARACTERES DE DATOS SE CODIFICAN REPETIDAMENTE EN UN CODIFICADOR (3) HASTA QUE TIENE LUGAR UN CARACTER CODIFICADO QUE NO PERTENECE A UN JUEGO DE CARACTERES PREDETERMINADO, EJ. CARACTERES RESERVADOS. CADA CARACTER CODIFICADO, TANTO SI ESE CARACTER CODIFICADO ES UNO DEL JUEGO CODIFICADO COMO SI NO, ES TRANSMITIDO MEDIANTE UN TRANSMISOR (4) AL RECEPTOR (5) Y UN CARACTER DE SALIDA DECODIFICADO PROPORCIONADO POR EL DECODIFICADOR (6) CUANDO EL CARACTER RECIBIDO CORRESPONDIENTE SE DETERMINA QUE NO ES EL DEL JUEGO DE CARACTERES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909008374A GB9008374D0 (en) | 1990-04-12 | 1990-04-12 | Communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2104701T3 true ES2104701T3 (es) | 1997-10-16 |
Family
ID=10674374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91908134T Expired - Lifetime ES2104701T3 (es) | 1990-04-12 | 1991-04-12 | Sistema para evitar que un mezclador de caracteres genere simbolos no deseados. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5333197A (es) |
EP (1) | EP0524253B1 (es) |
JP (1) | JP2922643B2 (es) |
AT (1) | ATE154996T1 (es) |
DE (1) | DE69126702T2 (es) |
DK (1) | DK0524253T3 (es) |
ES (1) | ES2104701T3 (es) |
GB (2) | GB9008374D0 (es) |
HK (2) | HK133096A (es) |
NO (1) | NO304869B1 (es) |
WO (1) | WO1991016778A1 (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5872822A (en) * | 1995-10-26 | 1999-02-16 | Mcdata Corporation | Method and apparatus for memory sequencing |
CA2258935A1 (en) * | 1997-04-30 | 1998-11-05 | Sony Corporation | Device and method for transmitting digital data |
DE19815408C2 (de) * | 1998-04-06 | 2002-06-20 | Rohde & Schwarz | Anordnung zum Optimieren der Datenübertragung eines gedächtnisbehafteten Funkkanals |
US6233718B1 (en) | 1998-10-19 | 2001-05-15 | Dolby Laboratories Licensing Corporation | Avoiding forbidden data patterns in coded audio data |
US7418098B1 (en) * | 2000-11-27 | 2008-08-26 | Protegrity Corporation | Data type preserving encryption |
DE60130902T2 (de) * | 2001-11-23 | 2008-07-17 | Protegrity Research & Development | Verfahren zum Erkennen des Eindringens in ein Datenbanksystem |
CN1328874C (zh) * | 2002-05-10 | 2007-07-25 | 索尼株式会社 | 用于传输数据的方法和装置 |
GB2430510B (en) * | 2005-09-27 | 2011-05-25 | Snell & Wilcox Ltd | Improved scrambling |
US8225106B2 (en) | 2008-04-02 | 2012-07-17 | Protegrity Corporation | Differential encryption utilizing trust modes |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3781472A (en) * | 1971-04-15 | 1973-12-25 | Datotek | Digital data ciphering technique |
US3886313A (en) * | 1972-09-29 | 1975-05-27 | Datotek | Voice security method and system |
US3868631A (en) * | 1972-10-20 | 1975-02-25 | Datotek | Digital cryptographic system and method |
US4079188A (en) * | 1975-04-14 | 1978-03-14 | Datotek, Inc. | Multi-mode digital enciphering system |
FR2439444A1 (fr) * | 1978-10-18 | 1980-05-16 | Lapeyronnie E | Dispositif reversible de sur-codage pour la transmission confidentielle d'information pouvant etre imprimee |
US4477912A (en) * | 1982-02-12 | 1984-10-16 | Arinc Research Corporation | Correlation data communications system |
DE3207040A1 (de) * | 1982-02-26 | 1983-09-08 | Siemens AG, 1000 Berlin und 8000 München | Vefahren und anordnung zum uebertragen von zeichen |
US4606056A (en) * | 1985-02-04 | 1986-08-12 | Burroughs Corporation | Method of encoding and serially transmitting self-clocking data and control characters |
DE3514860A1 (de) * | 1985-04-25 | 1986-10-30 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Verfahren zur bitweise verschluesselten uebertragung |
US4771463A (en) * | 1986-12-05 | 1988-09-13 | Siemens Transmission Systems, Inc. | Digital scrambling without error multiplication |
US4811357A (en) * | 1988-01-04 | 1989-03-07 | Paradyne Corporation | Secondary channel for digital modems using spread spectrum subliminal induced modulation |
US5012489A (en) * | 1988-11-07 | 1991-04-30 | Hayes Microcomputer Products, Inc. | Method for sending a plurality of data channels over a single communications line |
-
1990
- 1990-04-12 GB GB909008374A patent/GB9008374D0/en active Pending
-
1991
- 1991-04-12 DK DK91908134.9T patent/DK0524253T3/da active
- 1991-04-12 JP JP3507507A patent/JP2922643B2/ja not_active Expired - Fee Related
- 1991-04-12 DE DE69126702T patent/DE69126702T2/de not_active Expired - Lifetime
- 1991-04-12 US US07/956,010 patent/US5333197A/en not_active Expired - Lifetime
- 1991-04-12 AT AT91908134T patent/ATE154996T1/de not_active IP Right Cessation
- 1991-04-12 EP EP91908134A patent/EP0524253B1/en not_active Expired - Lifetime
- 1991-04-12 ES ES91908134T patent/ES2104701T3/es not_active Expired - Lifetime
- 1991-04-12 WO PCT/GB1991/000579 patent/WO1991016778A1/en active IP Right Grant
-
1992
- 1992-10-09 GB GB9221315A patent/GB2258373B/en not_active Expired - Fee Related
- 1992-10-09 NO NO923945A patent/NO304869B1/no not_active IP Right Cessation
-
1996
- 1996-07-25 HK HK133096A patent/HK133096A/xx not_active IP Right Cessation
-
1998
- 1998-01-02 HK HK98100024A patent/HK1001114A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB9008374D0 (en) | 1990-06-13 |
JPH05506134A (ja) | 1993-09-02 |
EP0524253B1 (en) | 1997-07-02 |
HK133096A (en) | 1996-08-02 |
GB9221315D0 (en) | 1992-12-02 |
DE69126702D1 (de) | 1997-08-07 |
HK1001114A1 (en) | 1998-05-22 |
EP0524253A1 (en) | 1993-01-27 |
GB2258373A (en) | 1993-02-03 |
DE69126702T2 (de) | 1997-12-04 |
NO923945D0 (no) | 1992-10-09 |
NO923945L (no) | 1992-12-09 |
NO304869B1 (no) | 1999-02-22 |
ATE154996T1 (de) | 1997-07-15 |
WO1991016778A1 (en) | 1991-10-31 |
US5333197A (en) | 1994-07-26 |
GB2258373B (en) | 1994-04-06 |
JP2922643B2 (ja) | 1999-07-26 |
DK0524253T3 (da) | 1998-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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