MXPA02007969A - Sistema de tv por cable u otro sistema de comunicacion similar. - Google Patents

Sistema de tv por cable u otro sistema de comunicacion similar.

Info

Publication number
MXPA02007969A
MXPA02007969A MXPA02007969A MXPA02007969A MXPA02007969A MX PA02007969 A MXPA02007969 A MX PA02007969A MX PA02007969 A MXPA02007969 A MX PA02007969A MX PA02007969 A MXPA02007969 A MX PA02007969A MX PA02007969 A MXPA02007969 A MX PA02007969A
Authority
MX
Mexico
Prior art keywords
signals
frequency band
carrier frequency
cable
transmission
Prior art date
Application number
MXPA02007969A
Other languages
English (en)
Inventor
Kjell Arne Ljungdahl
Original Assignee
Kjell Arne Ljungdahl
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 by Kjell Arne Ljungdahl filed Critical Kjell Arne Ljungdahl
Publication of MXPA02007969A publication Critical patent/MXPA02007969A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Se describe un sistema de TV por cable, que esta acomodado para permitir una transmision de senales en la direccion de retorno a partir de redes locales (10), incluidas en el sistema, a un extremo guia (11) del sistema dentro de una banda de frecuencia portadora predeterminada, que sirve para la transmision de senales en dicha direccion, que comprende medios (11¦, 23) para verificar periodicamente el sistema respecto a los disturbios que ocurren dentro de la banda de frecuencia portadora. Los medios de verificacion (11¦, 23) comprenden medios detectores (32, 33, 34, 35) dentro de cada red local (10) que estan acomodados para comparar el nivel de energia de las senales que ocurren dentro de la banda de frecuencia portadora con al menos un nivel de referencia predeterminado y para generar senales logicas, dependiendo del resultado de la comparacion, y medios de memoria (36) dentro de cada red local (10) que estan acomodados para almacenar informacion respecto a los intervalos de tiempo durante los cuales el nivel de energia excede el nivel de referencia, derivado de los valores de las senales logicas en diferentes tiempos.
MXPA02007969A 2000-02-16 2001-02-15 Sistema de tv por cable u otro sistema de comunicacion similar. MXPA02007969A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0000516A SE521970C2 (sv) 2000-02-16 2000-02-16 Kabel-TV-system som alstrar logiska signaler baserat på jämförelse mellan detekterade energinivåer i systemet och en referenssignal
PCT/SE2001/000327 WO2001062003A1 (en) 2000-02-16 2001-02-15 Cable tv system or other similar communication system

Publications (1)

Publication Number Publication Date
MXPA02007969A true MXPA02007969A (es) 2004-04-05

Family

ID=20278486

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA02007969A MXPA02007969A (es) 2000-02-16 2001-02-15 Sistema de tv por cable u otro sistema de comunicacion similar.

Country Status (13)

Country Link
US (1) US7283479B2 (es)
EP (1) EP1264483A1 (es)
JP (1) JP2003523665A (es)
KR (1) KR100760443B1 (es)
CN (1) CN1176549C (es)
AU (2) AU2001236267B2 (es)
BR (1) BR0108229A (es)
CA (1) CA2402953C (es)
MX (1) MXPA02007969A (es)
PL (1) PL199524B1 (es)
RU (1) RU2259021C2 (es)
SE (1) SE521970C2 (es)
WO (1) WO2001062003A1 (es)

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US20090265745A1 (en) * 2008-04-17 2009-10-22 Egan Jr John M Reversible Faceplate Terminal Adapter Which Changes Signal Flow Direction
US20090320085A1 (en) 2008-06-23 2009-12-24 Jon-En Wang House amplifier with return path gating
US8769597B2 (en) * 2008-06-23 2014-07-01 Pct International, Inc. Amplifier with noise reduction
US9363469B2 (en) 2008-07-17 2016-06-07 Ppc Broadband, Inc. Passive-active terminal adapter and method having automatic return loss control
US9647851B2 (en) 2008-10-13 2017-05-09 Ppc Broadband, Inc. Ingress noise inhibiting network interface device and method for cable television networks
US8429695B2 (en) * 2008-10-21 2013-04-23 Ppc Broadband, Inc. CATV entry adapter and method utilizing directional couplers for MoCA signal communication
US9351051B2 (en) 2008-10-13 2016-05-24 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US10154302B2 (en) 2008-10-13 2018-12-11 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US8286209B2 (en) * 2008-10-21 2012-10-09 John Mezzalingua Associates, Inc. Multi-port entry adapter, hub and method for interfacing a CATV network and a MoCA network
US8356322B2 (en) 2009-09-21 2013-01-15 John Mezzalingua Associates, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US8516537B2 (en) * 2009-10-09 2013-08-20 Ppc Broadband, Inc. Downstream bandwidth conditioning device
US8213457B2 (en) * 2009-10-09 2012-07-03 John Mezzalingua Associates, Inc. Upstream bandwidth conditioning device
US8832767B2 (en) 2008-10-16 2014-09-09 Ppc Broadband, Inc. Dynamically configurable frequency band selection device between CATV distribution system and CATV user
US8385219B2 (en) * 2009-10-09 2013-02-26 John Mezzalingua Associates, Inc. Upstream bandwidth level measurement device
US20110085586A1 (en) * 2009-10-09 2011-04-14 John Mezzalingua Associates, Inc. Total bandwidth conditioning device
US8001579B2 (en) * 2008-10-16 2011-08-16 John Mezzalingua Associates, Inc. Downstream output level and/or output level tilt compensation device between CATV distribution system and CATV user
US8464301B2 (en) 2008-10-16 2013-06-11 Ppc Broadband, Inc. Upstream bandwidth conditioning device between CATV distribution system and CATV user
US8510782B2 (en) * 2008-10-21 2013-08-13 Ppc Broadband, Inc. CATV entry adapter and method for preventing interference with eMTA equipment from MoCA Signals
US11910052B2 (en) 2008-10-21 2024-02-20 Ppc Broadband, Inc. Entry device for communicating external network signals and in-home network signals
US8141122B2 (en) 2009-03-30 2012-03-20 John Mezzalingua Associates, Inc. RF terminate/permit system
US8181211B2 (en) * 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Total bandwidth conditioning device
US8082570B2 (en) * 2009-03-30 2011-12-20 John Mezzalingua Associates, Inc. Method and apparatus for a self-terminating signal path
US20100251322A1 (en) * 2009-03-30 2010-09-30 Raymond Palinkas Upstream bandwidth conditioning device
US8990881B2 (en) * 2009-03-30 2015-03-24 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8179814B2 (en) * 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Automatic return path switching for a signal conditioning device
US8584192B2 (en) 2009-03-30 2013-11-12 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8098113B2 (en) * 2009-05-29 2012-01-17 John Mezzalingua Associates, Inc. Self-terminating coaxial cable port
US8854947B2 (en) 2009-06-15 2014-10-07 Ppc Broadband, Inc. Device and method for monitoring a communications system
US8274566B2 (en) * 2009-10-09 2012-09-25 John Mezzalingua Associates, Inc. Modulation analyzer and level measurement device
US8350641B2 (en) 2010-01-26 2013-01-08 John Mezzalingua Associates, Inc. Band selective isolation bridge for splitter
US8487717B2 (en) 2010-02-01 2013-07-16 Ppc Broadband, Inc. Multipath mitigation circuit for home network
US8479247B2 (en) 2010-04-14 2013-07-02 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8561125B2 (en) 2010-08-30 2013-10-15 Ppc Broadband, Inc. Home network frequency conditioning device and method
US10021343B2 (en) 2010-12-21 2018-07-10 Ppc Broadband, Inc. Method and apparatus for reducing isolation in a home network
US9264012B2 (en) 2012-06-25 2016-02-16 Ppc Broadband, Inc. Radio frequency signal splitter
WO2018005951A1 (en) 2016-06-30 2018-01-04 Ppc Broadband, Inc. Passive enhanced moca entry device
CN111543050A (zh) 2018-01-19 2020-08-14 Ppc宽带股份有限公司 用于扩展家用分路器网络的系统和方法

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US5126840A (en) * 1988-04-21 1992-06-30 Videotron Ltee Filter circuit receiving upstream signals for use in a CATV network
US5090024A (en) * 1989-08-23 1992-02-18 Intellon Corporation Spread spectrum communications system for networks
JP2732308B2 (ja) * 1989-10-17 1998-03-30 日本電信電話株式会社 雑音検出装置
CA2079284A1 (en) 1991-12-23 1993-06-24 Lowell G. Atkinson Feeder switch for a bidirectional cable television system
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Also Published As

Publication number Publication date
JP2003523665A (ja) 2003-08-05
KR100760443B1 (ko) 2007-09-20
US20030014765A1 (en) 2003-01-16
WO2001062003A1 (en) 2001-08-23
SE521970C2 (sv) 2003-12-23
CA2402953A1 (en) 2001-08-23
SE0000516D0 (sv) 2000-02-16
BR0108229A (pt) 2003-03-05
CN1176549C (zh) 2004-11-17
AU3626701A (en) 2001-08-27
AU2001236267B2 (en) 2004-08-12
KR20020087055A (ko) 2002-11-21
US7283479B2 (en) 2007-10-16
SE0000516L (sv) 2001-09-17
CA2402953C (en) 2009-09-08
PL199524B1 (pl) 2008-09-30
EP1264483A1 (en) 2002-12-11
RU2002120917A (ru) 2004-02-27
PL357136A1 (en) 2004-07-12
RU2259021C2 (ru) 2005-08-20
CN1401187A (zh) 2003-03-05

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