MX9805005A - Sistema de deteccion de corriente de ciclo de modem para detectar una condicion de conexion en un telefono de extension. - Google Patents

Sistema de deteccion de corriente de ciclo de modem para detectar una condicion de conexion en un telefono de extension.

Info

Publication number
MX9805005A
MX9805005A MX9805005A MX9805005A MX9805005A MX 9805005 A MX9805005 A MX 9805005A MX 9805005 A MX9805005 A MX 9805005A MX 9805005 A MX9805005 A MX 9805005A MX 9805005 A MX9805005 A MX 9805005A
Authority
MX
Mexico
Prior art keywords
telephone
detect
extension telephone
loop current
line current
Prior art date
Application number
MX9805005A
Other languages
English (en)
Inventor
Robert Alan Pitsch
Original Assignee
Thomson Consumer Electronics
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 GBGB9600002.1A external-priority patent/GB9600002D0/en
Priority claimed from GBGB9613608.0A external-priority patent/GB9613608D0/en
Application filed by Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of MX9805005A publication Critical patent/MX9805005A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G06K7/0086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers the connector comprising a circuit for steering the operations of the card connector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H03J9/06—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using electromagnetic waves other than radio waves, e.g. light
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/7385—Programmable or microprocessor-controlled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Power Sources (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Optical Communication System (AREA)
  • Noise Elimination (AREA)
  • Selective Calling Equipment (AREA)
  • Communication Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Air Bags (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Filters And Equalizers (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Un circuito de monitoreo de línea telefonica utiliza un optoaislador (OPTO2) para convertir la corriente de la línea telefonica en un voltaje que se aplica a la entrada de un convertidor analogico a digital (118). Los valores de analogico a digital son valores brutos que representan la corriente de la línea telefonica. Los valores de analogico a digital se muestrean a un intervalo previamente determinado, con el fin de identificar los cambios introducidos por la oficina central de la compañía telefonica, y para tomar esos cambios en cuenta cuando se decide si se ha conectado (descolgado) un teléfono de extension. Cuando un cliente hace que se conecte un teléfono de extension, la corriente de línea se divide entre el teléfono de extension y el modem IRD (100), y se detecta este cambio.
MX9805005A 1995-12-22 1998-06-19 Sistema de deteccion de corriente de ciclo de modem para detectar una condicion de conexion en un telefono de extension. MX9805005A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US917895P 1995-12-22 1995-12-22
GBGB9600002.1A GB9600002D0 (en) 1996-01-02 1996-01-02 Receiver for compressed television information
GBGB9613608.0A GB9613608D0 (en) 1996-06-28 1996-06-28 40mhz VCXO and loop filter for digital symbol lock timing for high speed modems

Publications (1)

Publication Number Publication Date
MX9805005A true MX9805005A (es) 1998-11-30

Family

ID=27268058

Family Applications (5)

Application Number Title Priority Date Filing Date
MX9805008A MX9805008A (es) 1995-12-22 1998-06-19 Un sistema de regreso automatico de llamada del suscriptor.
MX9805004A MX9805004A (es) 1995-12-22 1998-06-19 Aislamiento electrico entre un receptor infrarrojo y otros circuitos electronicos.
MX9805001A MX9805001A (es) 1995-12-22 1998-06-19 Circuito de deteccion y modificacion de fallas.
MX9805005A MX9805005A (es) 1995-12-22 1998-06-19 Sistema de deteccion de corriente de ciclo de modem para detectar una condicion de conexion en un telefono de extension.
MX9805007A MX9805007A (es) 1995-12-22 1998-06-19 Un circuito de proteccion de equipo telefonico.

Family Applications Before (3)

Application Number Title Priority Date Filing Date
MX9805008A MX9805008A (es) 1995-12-22 1998-06-19 Un sistema de regreso automatico de llamada del suscriptor.
MX9805004A MX9805004A (es) 1995-12-22 1998-06-19 Aislamiento electrico entre un receptor infrarrojo y otros circuitos electronicos.
MX9805001A MX9805001A (es) 1995-12-22 1998-06-19 Circuito de deteccion y modificacion de fallas.

Family Applications After (1)

Application Number Title Priority Date Filing Date
MX9805007A MX9805007A (es) 1995-12-22 1998-06-19 Un circuito de proteccion de equipo telefonico.

Country Status (12)

Country Link
US (1) US6442255B1 (es)
EP (5) EP0868810B1 (es)
JP (5) JP4077877B2 (es)
KR (5) KR100408983B1 (es)
CN (5) CN1126056C (es)
AU (5) AU1151997A (es)
BR (3) BR9612176A (es)
CA (1) CA2240287C (es)
DE (3) DE69636523T2 (es)
HK (1) HK1018651A1 (es)
MX (5) MX9805008A (es)
WO (5) WO1997023954A1 (es)

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CN101615152B (zh) * 2009-07-13 2013-07-03 中兴通讯股份有限公司 存储卡热插拔故障的检测方法和装置
CN102025412B (zh) * 2009-09-16 2014-11-05 海洋王照明科技股份有限公司 一种红外接收电路
CN103873610A (zh) * 2012-12-13 2014-06-18 上海共联通信信息发展有限公司 一种使用寿命长的公用电话终端设备
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CN112054482B (zh) * 2020-08-06 2022-05-06 三峡大学 基于dtw算法的换流变压器零序差动保护防误动方法

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Also Published As

Publication number Publication date
EP0868810A1 (en) 1998-10-07
EP0868781A1 (en) 1998-10-07
MX9805004A (es) 1998-11-30
KR100490016B1 (ko) 2005-08-31
EP0868704A1 (en) 1998-10-07
DE69636523D1 (de) 2006-10-19
JP2000516358A (ja) 2000-12-05
AU1419997A (en) 1997-07-17
CN1126056C (zh) 2003-10-29
DE69620023T2 (de) 2002-08-22
CA2240287A1 (en) 1997-07-03
AU715450B2 (en) 2000-02-03
KR19990072219A (ko) 1999-09-27
JP3573350B2 (ja) 2004-10-06
HK1018651A1 (en) 1999-12-30
WO1997023840A1 (en) 1997-07-03
CN1166158C (zh) 2004-09-08
MX9805007A (es) 1998-11-30
CA2240287C (en) 2002-09-10
CN1209209A (zh) 1999-02-24
DE69604596T2 (de) 2000-01-20
JP2000513515A (ja) 2000-10-10
AU1151997A (en) 1997-07-17
CN1095269C (zh) 2002-11-27
CN1097878C (zh) 2003-01-01
CN1209243A (zh) 1999-02-24
BR9612170A (pt) 1999-07-13
EP0868781B1 (en) 2002-04-10
DE69636523T2 (de) 2007-04-05
BR9612168A (pt) 1999-07-13
KR100422229B1 (ko) 2004-06-16
DE69604596D1 (de) 1999-11-11
CN1205821A (zh) 1999-01-20
WO1997023985A1 (en) 1997-07-03
KR19990072220A (ko) 1999-09-27
BR9612176A (pt) 1999-07-13
AU1290897A (en) 1997-07-17
AU1424497A (en) 1997-07-17
AU1467397A (en) 1997-07-17
KR100408983B1 (ko) 2004-03-24
EP0868704B1 (en) 1999-10-06
EP0868810B1 (en) 2006-09-06
CN1209245A (zh) 1999-02-24
JP4044962B2 (ja) 2008-02-06
WO1997023987A1 (en) 1997-07-03
KR19990072225A (ko) 1999-09-27
JP4452330B2 (ja) 2010-04-21
DE69620023D1 (de) 2002-04-25
KR100454013B1 (ko) 2005-05-09
WO1997023989A1 (en) 1997-07-03
CN1166162C (zh) 2004-09-08
JP2000502476A (ja) 2000-02-29
JP2000502534A (ja) 2000-02-29
CN1219304A (zh) 1999-06-09
JP2000505257A (ja) 2000-04-25
EP0868807A1 (en) 1998-10-07
KR100419331B1 (ko) 2004-05-24
EP0868805A1 (en) 1998-10-07
MX9805001A (es) 1998-11-30
JP4077877B2 (ja) 2008-04-23
WO1997023954A1 (en) 1997-07-03
US6442255B1 (en) 2002-08-27
KR19990072221A (ko) 1999-09-27
BR9612170B1 (pt) 2009-05-05
EP0868805B1 (en) 2002-03-20
KR19990072224A (ko) 1999-09-27
MX9805008A (es) 1998-11-30

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