FR1605095A - - Google Patents

Info

Publication number
FR1605095A
FR1605095A FR1605095DA FR1605095A FR 1605095 A FR1605095 A FR 1605095A FR 1605095D A FR1605095D A FR 1605095DA FR 1605095 A FR1605095 A FR 1605095A
Authority
FR
France
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
Application number
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR1605095A publication Critical patent/FR1605095A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
FR1605095D 1967-09-15 1968-08-19 Expired FR1605095A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66797267A 1967-09-15 1967-09-15

Publications (1)

Publication Number Publication Date
FR1605095A true FR1605095A (fr) 1973-01-12

Family

ID=24680442

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1605095D Expired FR1605095A (fr) 1967-09-15 1968-08-19

Country Status (5)

Country Link
US (1) US3715508A (fr)
JP (1) JPS5118764B1 (fr)
DE (1) DE1766907B2 (fr)
FR (1) FR1605095A (fr)
GB (1) GB1298471A (fr)

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US3891805A (en) * 1973-11-21 1975-06-24 James Loton Flanagan Digital signal detection in telephonic communication systems
FR2273433B1 (fr) * 1974-05-28 1979-10-12 Texier Alain
FR2287820A1 (fr) * 1974-10-11 1976-05-07 Labo Cent Telecommunicat Centre de commutation electronique pour systeme de telecommunication
GB1575098A (en) * 1977-06-15 1980-09-17 Communications Patents Ltd Method for measuring crossview between channels in a wired television broadcasting system
US4301530A (en) * 1978-12-18 1981-11-17 The United States Of America As Represented By The Secretary Of The Army Orthogonal spread spectrum time division multiple accessing mobile subscriber access system
US4365110A (en) * 1979-06-05 1982-12-21 Communications Satellite Corporation Multiple-destinational cryptosystem for broadcast networks
US4281409A (en) * 1979-06-25 1981-07-28 Schneider Kenneth S Method and apparatus for multiplex binary data communication
FR2534863B1 (fr) * 1982-10-22 1986-05-02 Alsthom Atlantique Systeme d'information de securite pour applications ferroviaires
FR2542951B1 (fr) * 1983-03-18 1990-03-02 Alsthom Atlantique Systeme de codage d'informations de securite de la voie vers des trains en vue de leur commande
US4779266A (en) * 1986-03-10 1988-10-18 Bell Communications Research, Inc. Encoding and decoding for code division multiple access communication systems
US4779265A (en) * 1986-10-27 1988-10-18 Bell Communications Research, Inc. Multiple access communication system
US4776012A (en) * 1987-04-17 1988-10-04 Unisys Corporation Method of jumping composite PN codes
US4933930A (en) * 1988-10-31 1990-06-12 International Business Machines Corporation High speed switch as for an optical communication system
GB8909051D0 (en) * 1989-04-21 2001-04-11 Secr Defence A high data rate multiplexed multichannel high frequency broadcast system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US6693951B1 (en) 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular telephone system
AU3327193A (en) * 1991-12-23 1993-07-28 Compfax Corporation Scanless TV transmission system
DE4302830C1 (de) * 1993-01-27 1994-03-03 Siemens Ag Rückgekoppeltes Schieberegister zum Erzeugen von Pseudozufallszahlenfolgen darstellenden digitalen Signalen
BR9506273A (pt) * 1994-07-29 1997-08-12 Qualcomm Inc Método para determinar a sincronização da sequência pn em um sistema de comunicação de espectro de propagação por sequência direta e aparelho e sistema para selecionar uma sequência de demodulação sincronizada
ZA961025B (en) * 1995-02-28 1996-07-16 Qualcomm Inc Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
US6292476B1 (en) 1997-04-16 2001-09-18 Qualcomm Inc. Method and apparatus for providing variable rate data in a communications system using non-orthogonal overflow channels
JP2818129B2 (ja) * 1995-03-27 1998-10-30 秋田県 情報記録再生方式及びその情報記録再生方式を適用したデータ記録再生装置
US6977967B1 (en) * 1995-03-31 2005-12-20 Qualcomm Incorporated Method and apparatus for performing fast power control in a mobile communication system
TW347616B (en) * 1995-03-31 1998-12-11 Qualcomm Inc Method and apparatus for performing fast power control in a mobile communication system a method and apparatus for controlling transmission power in a mobile communication system is disclosed.
US5805648A (en) * 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
EP0800284B1 (fr) * 1996-04-04 2006-01-04 New Japan Radio Corp., Ltd. Corrélateur pour des signaux à spectre étalé
US5926500A (en) * 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5930230A (en) 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US6396804B2 (en) 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US5859840A (en) * 1996-05-31 1999-01-12 Qualcomm Incorporated Spread spectrum communication system which defines channel groups comprising selected channels that are additional to a primary channel and transmits group messages during call set up
US5790589A (en) * 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
US5893035A (en) * 1996-09-16 1999-04-06 Qualcomm Incorporated Centralized forward link power control
US6496543B1 (en) * 1996-10-29 2002-12-17 Qualcomm Incorporated Method and apparatus for providing high speed data communications in a cellular environment
US6173007B1 (en) 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US6335922B1 (en) * 1997-02-11 2002-01-01 Qualcomm Incorporated Method and apparatus for forward link rate scheduling
US7751370B2 (en) * 2001-07-13 2010-07-06 Qualcomm Incorporated Method and apparatus for forward link rate scheduling
US5991284A (en) * 1997-02-13 1999-11-23 Qualcomm Inc. Subchannel control loop
JP3724676B2 (ja) * 1997-03-10 2005-12-07 ソニー株式会社 通信方法及び送信装置並びに受信装置
KR100365346B1 (ko) * 1997-09-09 2003-04-11 삼성전자 주식회사 이동통신시스템의쿼시직교부호생성및쿼시직교부호를이용한대역확산장치및방법
US6101173A (en) * 1998-03-16 2000-08-08 Qualcomm Incorporated Adaptive reacquisition time in a slotted paging environment
KR100318959B1 (ko) * 1998-07-07 2002-04-22 윤종용 부호분할다중접속통신시스템의서로다른부호간의간섭을제거하는장치및방법
US6157611A (en) * 1998-08-18 2000-12-05 Qualcomm Inc. Method and apparatus for transmission and construction of quasi orthogonal vectors
BR9906940A (pt) * 1998-09-08 2000-12-19 Sansung Electronics Co Ltd Processo para gerar um código quase ortogonal complexo quaternário em um sistema de comunicação de acesso múltiplo por divisão em código cdma, e, processos e dispositivos para gerar um código quase ortogonal complexo quaternário para um dispositivo de transmissão de canal em um sistema de comunicação cdma e para transmissão de canal para um sistema de comunicação cdma
DE69916787T2 (de) * 1998-09-25 2004-09-23 Samsung Electronics Co., Ltd., Suwon Vorrichtung und verfahren zur generierung eines quasionthogonalen kodes und zur verteilung von kanalsignalen in einem mobilkommunikationssystem
EP1001567A1 (fr) 1998-11-13 2000-05-17 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Additionneur
EP1011281A3 (fr) 1998-12-18 2000-07-05 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Combineur flexible pour AMRC
US8199696B2 (en) * 2001-03-29 2012-06-12 Qualcomm Incorporated Method and apparatus for power control in a wireless communication system
US7688976B2 (en) * 2005-07-14 2010-03-30 Tara Chand Singhal Random wave envelope derived random numbers and their use in generating transient keys in communication security application part I
JP2007243545A (ja) * 2006-03-08 2007-09-20 Nec Corp 多重化スイッチング回路及び多重化スイッチング方法
AT504196B1 (de) * 2006-09-15 2012-04-15 Frequentis Gmbh Verfahren und system zur übertragung von vertraulichen und nicht vertraulichen daten
EP2136520A1 (fr) * 2008-06-20 2009-12-23 Nokia Siemens Networks Oy Procédé et dispositif de données de traitement et système de communication comprenant un tel dispositif

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL109840C (fr) * 1957-02-26
US3244808A (en) * 1962-01-12 1966-04-05 Massachusetts Inst Technology Pulse code modulation with few amplitude steps
US3518547A (en) * 1966-06-14 1970-06-30 Ibm Digital communication system employing multiplex transmission of maximal length binary sequences
US3488445A (en) * 1966-11-14 1970-01-06 Bell Telephone Labor Inc Orthogonal frequency multiplex data transmission system
US3484554A (en) * 1967-03-02 1969-12-16 Itt Pseudo-orthogonal pulse code system

Also Published As

Publication number Publication date
DE1766907A1 (de) 1974-11-21
JPS5118764B1 (fr) 1976-06-12
DE1766907B2 (de) 1976-01-15
GB1298471A (en) 1972-12-06
US3715508A (en) 1973-02-06

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