ES435285A1 - Perfeccionamientos en generadores de palabras seudoaleto- rias. - Google Patents
Perfeccionamientos en generadores de palabras seudoaleto- rias.Info
- Publication number
- ES435285A1 ES435285A1 ES435285A ES435285A ES435285A1 ES 435285 A1 ES435285 A1 ES 435285A1 ES 435285 A ES435285 A ES 435285A ES 435285 A ES435285 A ES 435285A ES 435285 A1 ES435285 A1 ES 435285A1
- Authority
- ES
- Spain
- Prior art keywords
- pseudo
- word generator
- parallel word
- random
- random parallel
- 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
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
- H04L25/03872—Parallel scrambling or descrambling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Error Detection And Correction (AREA)
- Time-Division Multiplex Systems (AREA)
- Peptides Or Proteins (AREA)
Abstract
GENERADOR DE PALABRAS SEUDOALEATORIAS QUE COMPRENDE UNA RED DE REALIMENTACION DE N-CELULAS POR LO MENOS CON UNA SUMADORA DE MODULO-2 EN SU TRAYECTO DE REALIMENTACION, CUYO GENERADOR DE PALABRAS SIRVE PARA MEZCALR SEÑALES DE DATOS BINARIOS PROCEDENTES DE UNA PLURALIDAD DE DETALLES DE DATOS DE UNA MANERA SEUDOALEATORIA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450171A US3920894A (en) | 1974-03-11 | 1974-03-11 | Pseudo-random parallel word generator |
Publications (1)
Publication Number | Publication Date |
---|---|
ES435285A1 true ES435285A1 (es) | 1976-11-16 |
Family
ID=23787061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES435285A Expired ES435285A1 (es) | 1974-03-11 | 1975-03-04 | Perfeccionamientos en generadores de palabras seudoaleto- rias. |
Country Status (9)
Country | Link |
---|---|
US (1) | US3920894A (es) |
JP (1) | JPS5642184B2 (es) |
BE (1) | BE826504A (es) |
CA (1) | CA1036279A (es) |
DE (1) | DE2510278C2 (es) |
ES (1) | ES435285A1 (es) |
FR (1) | FR2264429B1 (es) |
GB (1) | GB1495426A (es) |
SE (1) | SE401302B (es) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO141294C (no) * | 1974-10-31 | 1980-02-06 | Licentia Gmbh | Fremgangsmaate ved frembringelse av slumpartede binaertegnfoelger |
CH603014A5 (es) * | 1975-02-05 | 1978-08-15 | Europ Handelsges Anst | |
US4120030A (en) * | 1977-03-11 | 1978-10-10 | Kearney & Trecker Corporation | Computer software security system |
US4167700A (en) * | 1977-05-02 | 1979-09-11 | Motorola, Inc. | Digital voice protection system and method |
US4291386A (en) * | 1978-11-30 | 1981-09-22 | Sperry Corporation | Pseudorandom number generator |
DE3010969A1 (de) * | 1980-03-21 | 1981-10-01 | Siemens AG, 1000 Berlin und 8000 München | Pcm-system mit sendeseitigem verwuerfler und empfangsseitigem entwuerfler |
US4447672A (en) * | 1980-10-06 | 1984-05-08 | Nippon Electric Co., Ltd. | Device for encrypting each input data bit by at least one keying bit decided by a code pattern and a bit pattern of a predetermined number of preceding encrypted bits |
US4723246A (en) * | 1982-05-11 | 1988-02-02 | Tandem Computers Incorporated | Integrated scrambler-encoder using PN sequence generator |
FR2581197B1 (fr) * | 1982-08-11 | 1987-09-04 | Dassault Electronique | Procede et dispositif pour eliminer l'effet des signaux parasites lies a la commutation des voies de reception dans un radar a impulsions. |
US4667301A (en) * | 1983-06-13 | 1987-05-19 | Control Data Corporation | Generator for pseudo-random numbers |
US4698617A (en) * | 1984-05-22 | 1987-10-06 | American Microsystems, Inc. | ROM Protection scheme |
US4785410A (en) * | 1985-06-05 | 1988-11-15 | Clarion Co., Ltd. | Maximum length shift register sequences generator |
US4724541A (en) * | 1985-07-24 | 1988-02-09 | Mallick Brian C | Data-dependent binary encoder/decoder |
US4864525A (en) * | 1986-07-11 | 1989-09-05 | Clarion Co., Ltd. | Maximum length shift register sequence generator |
GB8727846D0 (en) * | 1987-11-27 | 1987-12-31 | British Telecomm | Optical communications network |
NL8700930A (nl) * | 1987-04-17 | 1988-11-16 | Hollandse Signaalapparaten Bv | Systeem van orthogonaal werkende codegeneratoren, radio's voorzien van een codegenerator en codegeneratoren van zo'n systeem. |
JPH0242223Y2 (es) * | 1988-04-08 | 1990-11-09 | ||
DE3825880C1 (de) * | 1988-07-29 | 1995-12-21 | Siemens Ag | Schlüsseleinrichtung |
JP2579539B2 (ja) * | 1988-10-11 | 1997-02-05 | クラリオン株式会社 | スペクトラム拡散通信装置 |
US5224165A (en) * | 1988-10-25 | 1993-06-29 | Hughes Aircraft Company | High speed word generator |
US5031129A (en) * | 1989-05-12 | 1991-07-09 | Alcatel Na Network Systems Corp. | Parallel pseudo-random generator for emulating a serial pseudo-random generator and method for carrying out same |
US4998076A (en) * | 1989-08-25 | 1991-03-05 | The Boeing Company | Apparatus and methods for simulating a lightning strike in an aircraft avionics environment |
KR940009843B1 (ko) * | 1992-02-07 | 1994-10-17 | 이병기 | 병렬 스크램블링 시스템 |
US5530959A (en) * | 1994-05-18 | 1996-06-25 | At&T Corp. | Self-synchronizing scrambler/descrambler without error multiplication |
US6571181B1 (en) * | 1999-08-11 | 2003-05-27 | Broadcom Corporation | System and method for detecting a device requiring power |
US6738935B1 (en) * | 2000-02-07 | 2004-05-18 | 3Com Corporation | Coding sublayer for multi-channel media with error correction |
US7430262B2 (en) * | 2001-03-19 | 2008-09-30 | Defense Ultra Electronics Canada Inc. | Frame synchronization method and system |
US7139397B2 (en) * | 2001-07-20 | 2006-11-21 | Stmicroelectronics S.R.L. | Hybrid architecture for realizing a random numbers generator |
WO2006048703A1 (en) * | 2004-11-05 | 2006-05-11 | Synaptic Laboratories Limited | Process of and apparatus for encoding a signal |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3401235A (en) * | 1964-12-29 | 1968-09-10 | Bell Telephone Labor Inc | Time division communication system |
US3700806A (en) * | 1967-09-18 | 1972-10-24 | Csf | Key generators for cryptographic devices |
SE322257B (es) * | 1969-06-11 | 1970-04-06 | Ericsson Telefon Ab L M | |
US3728529A (en) * | 1969-10-08 | 1973-04-17 | Sperry Rand Corp | Two-way communication system employing two-clock frequency pseudo-noise signal modulation |
CA925212A (en) * | 1970-06-22 | 1973-04-24 | Western Electric Company, Incorporated | Digital data scrambler-descrambler apparatus for improved error performance |
US3761696A (en) * | 1972-02-16 | 1973-09-25 | Signetics Corp | Random integer generator and method |
US3784743A (en) * | 1972-08-23 | 1974-01-08 | Bell Telephone Labor Inc | Parallel data scrambler |
-
1974
- 1974-03-11 US US450171A patent/US3920894A/en not_active Expired - Lifetime
- 1974-11-26 CA CA214,625A patent/CA1036279A/en not_active Expired
-
1975
- 1975-03-04 SE SE7502401A patent/SE401302B/xx not_active IP Right Cessation
- 1975-03-04 ES ES435285A patent/ES435285A1/es not_active Expired
- 1975-03-05 GB GB9068/75A patent/GB1495426A/en not_active Expired
- 1975-03-08 DE DE2510278A patent/DE2510278C2/de not_active Expired
- 1975-03-10 FR FR7507433A patent/FR2264429B1/fr not_active Expired
- 1975-03-10 BE BE154195A patent/BE826504A/xx not_active IP Right Cessation
- 1975-03-11 JP JP2874475A patent/JPS5642184B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE7502401L (es) | 1975-09-12 |
US3920894A (en) | 1975-11-18 |
DE2510278C2 (de) | 1983-06-01 |
SE401302B (sv) | 1978-04-24 |
JPS50122855A (es) | 1975-09-26 |
BE826504A (fr) | 1975-06-30 |
DE2510278A1 (de) | 1975-09-18 |
FR2264429A1 (es) | 1975-10-10 |
GB1495426A (en) | 1977-12-21 |
JPS5642184B2 (es) | 1981-10-02 |
FR2264429B1 (es) | 1978-02-03 |
CA1036279A (en) | 1978-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19910708 |