DE60030836D1 - Telephon - Google Patents

Telephon

Info

Publication number
DE60030836D1
DE60030836D1 DE60030836T DE60030836T DE60030836D1 DE 60030836 D1 DE60030836 D1 DE 60030836D1 DE 60030836 T DE60030836 T DE 60030836T DE 60030836 T DE60030836 T DE 60030836T DE 60030836 D1 DE60030836 D1 DE 60030836D1
Authority
DE
Germany
Prior art keywords
telephone
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
DE60030836T
Other languages
English (en)
Inventor
Luciano Tomasini
Giancarlo Clerici
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 SRL
Original Assignee
STMicroelectronics SRL
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 SRL filed Critical STMicroelectronics SRL
Application granted granted Critical
Publication of DE60030836D1 publication Critical patent/DE60030836D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
DE60030836T 2000-02-22 2000-02-22 Telephon Expired - Lifetime DE60030836D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00830123A EP1128654B1 (de) 2000-02-22 2000-02-22 Telephon

Publications (1)

Publication Number Publication Date
DE60030836D1 true DE60030836D1 (de) 2006-11-02

Family

ID=8175194

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60030836T Expired - Lifetime DE60030836D1 (de) 2000-02-22 2000-02-22 Telephon

Country Status (3)

Country Link
US (1) US6842520B2 (de)
EP (1) EP1128654B1 (de)
DE (1) DE60030836D1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531123B2 (de) * 1973-12-28 1978-01-14
US4488006A (en) * 1982-07-01 1984-12-11 At&T Bell Laboratories Apparatus for controlling the application of telephone line power in a telephone set
JPS63266956A (ja) * 1987-04-23 1988-11-04 Nec Corp 通信端末装置
US4975949A (en) * 1989-06-15 1990-12-04 Plantronics, Inc. Electronic headset telephone

Also Published As

Publication number Publication date
US6842520B2 (en) 2005-01-11
EP1128654A1 (de) 2001-08-29
EP1128654B1 (de) 2006-09-20
US20010038692A1 (en) 2001-11-08

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Legal Events

Date Code Title Description
8332 No legal effect for de