FR2808396B1 - Circuit de detection de prise de ligne - Google Patents

Circuit de detection de prise de ligne

Info

Publication number
FR2808396B1
FR2808396B1 FR0005405A FR0005405A FR2808396B1 FR 2808396 B1 FR2808396 B1 FR 2808396B1 FR 0005405 A FR0005405 A FR 0005405A FR 0005405 A FR0005405 A FR 0005405A FR 2808396 B1 FR2808396 B1 FR 2808396B1
Authority
FR
France
Prior art keywords
detection circuit
socket detection
socket
circuit
detection
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 - Fee Related
Application number
FR0005405A
Other languages
English (en)
Other versions
FR2808396A1 (fr
Inventor
Fabrice Guitton
Andre Bremond
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.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
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 STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0005405A priority Critical patent/FR2808396B1/fr
Priority to US09/843,095 priority patent/US6879686B2/en
Publication of FR2808396A1 publication Critical patent/FR2808396A1/fr
Application granted granted Critical
Publication of FR2808396B1 publication Critical patent/FR2808396B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
    • 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)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Measurement Of Current Or Voltage (AREA)
FR0005405A 2000-04-27 2000-04-27 Circuit de detection de prise de ligne Expired - Fee Related FR2808396B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0005405A FR2808396B1 (fr) 2000-04-27 2000-04-27 Circuit de detection de prise de ligne
US09/843,095 US6879686B2 (en) 2000-04-27 2001-04-25 Line take-up detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0005405A FR2808396B1 (fr) 2000-04-27 2000-04-27 Circuit de detection de prise de ligne

Publications (2)

Publication Number Publication Date
FR2808396A1 FR2808396A1 (fr) 2001-11-02
FR2808396B1 true FR2808396B1 (fr) 2003-01-31

Family

ID=8849674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0005405A Expired - Fee Related FR2808396B1 (fr) 2000-04-27 2000-04-27 Circuit de detection de prise de ligne

Country Status (2)

Country Link
US (1) US6879686B2 (fr)
FR (1) FR2808396B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244665A1 (de) * 2002-09-24 2004-04-01 Ebm Werke Gmbh & Co. Kg Schaltungsanordnung zur galvanisch getrennten Signalübertragung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742536A (en) * 1986-10-24 1988-05-03 Energy Innovations, Inc. Telephone monitor circuit and method
US5111502A (en) * 1990-04-25 1992-05-05 Command Communications, Inc. Telephone line bridging sensor
US5506891A (en) * 1993-07-06 1996-04-09 Cirrus Logic, Inc. Method and apparatus for detecting the connection status of an extension phone connected to a voice/fax/data modem
US5654984A (en) * 1993-12-03 1997-08-05 Silicon Systems, Inc. Signal modulation across capacitors
US6587560B1 (en) * 1997-04-22 2003-07-01 Silicon Laboratories Inc. Low voltage circuits powered by the phone line
US6359983B1 (en) * 1997-04-22 2002-03-19 Silicon Laboratories, Inc. Digital isolation system with data scrambling
US6005923A (en) * 1997-05-28 1999-12-21 Conexant Systems, Inc. Full featured data access arrangement for use with modems
US6141414A (en) * 1998-05-08 2000-10-31 Conexant Systems, Inc. Data access arrangement having combined remote hang-up/ring detection circuitry
US6359973B1 (en) * 1998-11-16 2002-03-19 Conexant Systems, Inc. Data access arrangement utilizing a serialized digital data path across an isolation barrier
US6377667B1 (en) * 1999-03-15 2002-04-23 3Com Corporation Telephone line-assist powered apparatus with programmable hold current
US6674857B1 (en) * 1999-10-08 2004-01-06 Agere Systems Inc. Startup procedure for international line powered DAA

Also Published As

Publication number Publication date
US6879686B2 (en) 2005-04-12
US20010036263A1 (en) 2001-11-01
FR2808396A1 (fr) 2001-11-02

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20081231