JPS50122855A - - Google Patents
Info
- Publication number
- JPS50122855A JPS50122855A JP50028744A JP2874475A JPS50122855A JP S50122855 A JPS50122855 A JP S50122855A JP 50028744 A JP50028744 A JP 50028744A JP 2874475 A JP2874475 A JP 2874475A JP S50122855 A JPS50122855 A JP S50122855A
- Authority
- JP
- Japan
- 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.)
- Granted
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)
- Peptides Or Proteins (AREA)
- Time-Division Multiplex Systems (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
JPS50122855A true JPS50122855A (ja) | 1975-09-26 |
JPS5642184B2 JPS5642184B2 (ja) | 1981-10-02 |
Family
ID=23787061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2874475A Expired JPS5642184B2 (ja) | 1974-03-11 | 1975-03-11 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3920894A (ja) |
JP (1) | JPS5642184B2 (ja) |
BE (1) | BE826504A (ja) |
CA (1) | CA1036279A (ja) |
DE (1) | DE2510278C2 (ja) |
ES (1) | ES435285A1 (ja) |
FR (1) | FR2264429B1 (ja) |
GB (1) | GB1495426A (ja) |
SE (1) | SE401302B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147539A (en) * | 1980-03-21 | 1981-11-16 | Siemens Ag | Pcm system with scrambler at transmitter side and descramber at receiver side |
Families Citing this family (28)
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 (ja) * | 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 |
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 (ja) * | 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 |
WO2006048702A1 (en) * | 2004-11-05 | 2006-05-11 | Synaptic Laboratories Limited | A method of and apparatus for encoding a signal in a hashing primitive |
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 (ja) * | 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 |
US3649915A (en) * | 1970-06-22 | 1972-03-14 | Bell Telephone Labor Inc | 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
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56147539A (en) * | 1980-03-21 | 1981-11-16 | Siemens Ag | Pcm system with scrambler at transmitter side and descramber at receiver side |
Also Published As
Publication number | Publication date |
---|---|
BE826504A (fr) | 1975-06-30 |
US3920894A (en) | 1975-11-18 |
SE401302B (sv) | 1978-04-24 |
DE2510278A1 (de) | 1975-09-18 |
SE7502401L (ja) | 1975-09-12 |
DE2510278C2 (de) | 1983-06-01 |
FR2264429B1 (ja) | 1978-02-03 |
ES435285A1 (es) | 1976-11-16 |
CA1036279A (en) | 1978-08-08 |
JPS5642184B2 (ja) | 1981-10-02 |
GB1495426A (en) | 1977-12-21 |
FR2264429A1 (ja) | 1975-10-10 |