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AU4856493A - Telephone line interface - Google Patents

Telephone line interface

Info

Publication number
AU4856493A
AU4856493A AU48564/93A AU4856493A AU4856493A AU 4856493 A AU4856493 A AU 4856493A AU 48564/93 A AU48564/93 A AU 48564/93A AU 4856493 A AU4856493 A AU 4856493A AU 4856493 A AU4856493 A AU 4856493A
Authority
AU
Australia
Prior art keywords
telephone line
line interface
interface
telephone
line
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.)
Abandoned
Application number
AU48564/93A
Inventor
Uzoma Ulugbo Agbaje-Anozie
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.)
UZOMA ULUGBO AGBAJE ANOZIE
Original Assignee
UZOMA ULUGBO AGBAJE ANOZIE
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 UZOMA ULUGBO AGBAJE ANOZIE filed Critical UZOMA ULUGBO AGBAJE ANOZIE
Publication of AU4856493A publication Critical patent/AU4856493A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
AU48564/93A 1992-09-14 1993-09-10 Telephone line interface Abandoned AU4856493A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US94446092A 1992-09-14 1992-09-14
US944460 1992-09-14
PCT/US1993/008551 WO1994007319A1 (en) 1992-09-14 1993-09-10 Telephone line interface

Publications (1)

Publication Number Publication Date
AU4856493A true AU4856493A (en) 1994-04-12

Family

ID=25481441

Family Applications (1)

Application Number Title Priority Date Filing Date
AU48564/93A Abandoned AU4856493A (en) 1992-09-14 1993-09-10 Telephone line interface

Country Status (2)

Country Link
AU (1) AU4856493A (en)
WO (1) WO1994007319A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717752A (en) * 1995-06-30 1998-02-10 Siemens Components Data access arrangement
US5751803A (en) 1995-11-08 1998-05-12 Shmuel Hershkovit Telephone line coupler
AU2005282170B2 (en) * 2004-09-08 2010-03-11 Tyco Safety Products Canada Ltd. Telephone line interface, side-tone attenuation circuit and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282604A (en) * 1979-04-04 1981-08-04 Jefferson William T Optical isolation circuit for bidirectional communication lines
US4313225A (en) * 1979-11-05 1982-01-26 Bell Telephone Laboratories, Incorporated Opto-isolator hybrid circuit
US4727535A (en) * 1985-04-08 1988-02-23 Rapitech System Inc. Telephone network coupler

Also Published As

Publication number Publication date
WO1994007319A1 (en) 1994-03-31

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