ES2041315T3 - Metodo de comunicar senales digitales y receptor para el uso con tal metodo. - Google Patents

Metodo de comunicar senales digitales y receptor para el uso con tal metodo.

Info

Publication number
ES2041315T3
ES2041315T3 ES198888308382T ES88308382T ES2041315T3 ES 2041315 T3 ES2041315 T3 ES 2041315T3 ES 198888308382 T ES198888308382 T ES 198888308382T ES 88308382 T ES88308382 T ES 88308382T ES 2041315 T3 ES2041315 T3 ES 2041315T3
Authority
ES
Spain
Prior art keywords
clock
receiver
digital
generator
digital signals
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
Application number
ES198888308382T
Other languages
English (en)
Inventor
David Wynford Faulkner
Dianne Margaret Russ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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
Priority claimed from GB878721603A external-priority patent/GB8721603D0/en
Priority claimed from GB888804552A external-priority patent/GB8804552D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of ES2041315T3 publication Critical patent/ES2041315T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Optical Communication System (AREA)

Abstract

RECEPTOR (2) PARA EXTRAER SELECTIVAMENTE UNO DE DOS O MAS CANALES MULTIPLEXADOS EN EL TIEMPO DE SEÑALES DIGITALES, HABIENDO SIDO CODIFICADO DICHO CANAL ANTES DE SU MULTIPLEXACION UTILIZANDO UNA SECUENCIA DIGITAL PREDETERMINADA QUE CONSTA DE UN RELOJ (4) QUE PROPORCIONA IMPULSOS CON UN COEFICIENTE DE REPETICION QUE DEPENDE DE LA SEÑAL DE CONTROL DE RELOJ; UN GENERADOR DE SECUENCIAS DIGITALES (10) ACTIVADO POR CADA IMPULSO DE RELOJ PARA PROPORCIONAR UNA SEÑAL DE GENERADOR REPRESENTATIVA DEL PROXIMO DIGITO EN LA SECUENCIA DIGITAL PREDETERMINADA; UN MUESTREADOR (8) QUE PROPORCIONA EL COEFICIENTE DE IMPULSO DE RELOJ DE LA SEÑAL MUESTREADA; Y UN ELEMENTO DE BLOQUEO DE FASE (8,18,25,26,22,4,10) QUE CONTROLA LA SEÑAL DE CONTROL DE RELOJ POR LA QUE EL GENERADOR DE SECUENCIA ES BLOQUEABLE EN RETARDO POR LA SEÑAL MUESTREADA. EL RECEPTOR SE APLICA PARTICULARMENTE EN LA RECEPCION DE EMISIONES DE SEÑALES DIGITALES DE VIDEO A TRAVES DE UNA RED OPTICA PASIVA.
ES198888308382T 1987-09-14 1988-09-09 Metodo de comunicar senales digitales y receptor para el uso con tal metodo. Expired - Lifetime ES2041315T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878721603A GB8721603D0 (en) 1987-09-14 1987-09-14 Communicating digital signals
GB888804552A GB8804552D0 (en) 1988-02-26 1988-02-26 Method of communicating digital signals & receiver for use with such method

Publications (1)

Publication Number Publication Date
ES2041315T3 true ES2041315T3 (es) 1993-11-16

Family

ID=26292735

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198888308382T Expired - Lifetime ES2041315T3 (es) 1987-09-14 1988-09-09 Metodo de comunicar senales digitales y receptor para el uso con tal metodo.

Country Status (8)

Country Link
US (1) US5144669A (es)
EP (1) EP0308150B1 (es)
JP (1) JP2807244B2 (es)
CA (1) CA1325296C (es)
DE (1) DE3882185T2 (es)
ES (1) ES2041315T3 (es)
HK (1) HK130596A (es)
WO (1) WO1989002681A1 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5519830A (en) * 1993-06-10 1996-05-21 Adc Telecommunications, Inc. Point-to-multipoint performance monitoring and failure isolation system
US5408462A (en) * 1993-10-07 1995-04-18 Adc Telecommunications, Inc. Protection switching apparatus and method
US5453737A (en) * 1993-10-08 1995-09-26 Adc Telecommunications, Inc. Control and communications apparatus
US5574673A (en) * 1993-11-29 1996-11-12 Board Of Regents, The University Of Texas System Parallel architecture for generating pseudo-random sequences
FR2719175B1 (fr) * 1994-04-20 1996-05-31 Cit Alcatel Procédé de transmission optique présentant une sensibilité réduite à la dispersion, et système de transmission pour la mise en Óoeuvre de ce procédé.
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
FI97184C (fi) * 1994-11-07 1996-10-25 Nokia Telecommunications Oy Menetelmä ja laitteisto tilaajakohtaisen muokkauksen ja uudelleenmuokkauksen toteuttamiseksi tilaajaverkossa
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7224798B2 (en) * 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US5786919A (en) * 1996-09-05 1998-07-28 The United States Of America As Represented By The Secretary Of The Navy Data multiplexing node for line array
US6243372B1 (en) * 1996-11-14 2001-06-05 Omnipoint Corporation Methods and apparatus for synchronization in a wireless network
US6044122A (en) * 1997-01-23 2000-03-28 Ericsson, Inc. Digital phase acquisition with delay locked loop
US6243469B1 (en) * 1997-09-18 2001-06-05 Matsushita Electric Industrial Co., Ltd. Information transmission method and apparatus
US6118836A (en) * 1997-12-18 2000-09-12 Alcatel Usa Sourcing L.P. Frequency and phase locking apparatus
US6088414A (en) * 1997-12-18 2000-07-11 Alcatel Usa Sourcing, L.P. Method of frequency and phase locking in a plurality of temporal frames
US6577732B1 (en) * 1998-09-22 2003-06-10 Lucent Technologies Inc. Hierarchical encryption technique for dense wavelength division multiplexed systems using a wavelength bus architecture
US6973188B1 (en) 2002-02-25 2005-12-06 Lockheed Martin Corporation Analog scrambler
US7277637B2 (en) * 2003-01-03 2007-10-02 Tellabs Bedford, Inc. Fiber to the home broadband home unit
US7403574B2 (en) * 2003-08-29 2008-07-22 The Directv Group, Inc. Simplified scrambling scheme for satellite broadcasting systems
KR100520656B1 (ko) * 2003-09-26 2005-10-13 삼성전자주식회사 방송/영상 신호에 대한 보안이 가능한 실시간 방송/영상을수용하는 이더넷 수동형 광 가입자 망
US20060023874A1 (en) * 2004-07-29 2006-02-02 International Business Machines Corporation Method and multiline scrambled clock architecture with random state selection for implementing lower electromagnetic emissions
JP4804735B2 (ja) 2004-09-30 2011-11-02 富士通株式会社 光伝送システム及び光伝送方法
US7696797B1 (en) 2005-03-31 2010-04-13 Schnaitter William N Signal generator with output frequency greater than the oscillator frequency
EP2262178A1 (en) * 2009-06-10 2010-12-15 Alcatel Lucent Method for discontinuously transferring data in a point-to-multipoint access network, central unit, and network termination unit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE646982A (es) * 1963-04-23
NL6702874A (es) 1966-08-27 1968-08-26
US3649915A (en) * 1970-06-22 1972-03-14 Bell Telephone Labor Inc Digital data scrambler-descrambler apparatus for improved error performance
US3950616A (en) * 1975-04-08 1976-04-13 Bell Telephone Laboratories, Incorporated Alignment of bytes in a digital data bit stream
US4052565A (en) * 1975-05-28 1977-10-04 Martin Marietta Corporation Walsh function signal scrambler
US4221931A (en) * 1977-10-17 1980-09-09 Harris Corporation Time division multiplied speech scrambler
JPS5539444A (en) * 1978-09-13 1980-03-19 Pioneer Electronic Corp Scramble/descramble system for catv broadcast
US4221005A (en) * 1979-05-21 1980-09-02 Nasa Pseudonoise code tracking loop
DE3010969A1 (de) * 1980-03-21 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Pcm-system mit sendeseitigem verwuerfler und empfangsseitigem entwuerfler
GB2140656A (en) * 1983-05-13 1984-11-28 Philips Electronic Associated Television transmission system
JPH0654973B2 (ja) * 1983-11-09 1994-07-20 ソニー株式会社 Ｃａｔｖラインを使用したデジタル信号の伝送装置
US4866773A (en) * 1988-05-20 1989-09-12 Dan Lubarsky System for interfacing a digital encryption device to a time-division multiplexed communication system

Also Published As

Publication number Publication date
HK130596A (en) 1996-07-26
WO1989002681A1 (en) 1989-03-23
DE3882185D1 (de) 1993-08-12
DE3882185T2 (de) 1993-11-04
US5144669A (en) 1992-09-01
CA1325296C (en) 1993-12-14
JPH02501432A (ja) 1990-05-17
EP0308150B1 (en) 1993-07-07
JP2807244B2 (ja) 1998-10-08
EP0308150A1 (en) 1989-03-22

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