DE69929978D1 - Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfades - Google Patents

Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfades

Info

Publication number
DE69929978D1
DE69929978D1 DE69929978T DE69929978T DE69929978D1 DE 69929978 D1 DE69929978 D1 DE 69929978D1 DE 69929978 T DE69929978 T DE 69929978T DE 69929978 T DE69929978 T DE 69929978T DE 69929978 D1 DE69929978 D1 DE 69929978D1
Authority
DE
Germany
Prior art keywords
microphone
transmit
interface
handset
base unit
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
DE69929978T
Other languages
English (en)
Other versions
DE69929978T2 (de
Inventor
W Stelman
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.)
Hello Direct Inc
Original Assignee
Hello Direct Inc
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 Hello Direct Inc filed Critical Hello Direct Inc
Application granted granted Critical
Publication of DE69929978D1 publication Critical patent/DE69929978D1/de
Publication of DE69929978T2 publication Critical patent/DE69929978T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Telephone Set Structure (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
DE69929978T 1998-07-08 1999-07-06 Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfades Expired - Lifetime DE69929978T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9210298P 1998-07-08 1998-07-08
US92102P 1998-07-08
US340541 1999-06-28
US09/340,541 US6683949B1 (en) 1998-07-08 1999-06-28 Handset port interface including DC measurement and transmit path calibration
PCT/US1999/015261 WO2000003529A1 (en) 1998-07-08 1999-07-06 A handset port interface including dc measurement and transmit path calibration

Publications (2)

Publication Number Publication Date
DE69929978D1 true DE69929978D1 (de) 2006-04-27
DE69929978T2 DE69929978T2 (de) 2006-11-23

Family

ID=26785203

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69929978T Expired - Lifetime DE69929978T2 (de) 1998-07-08 1999-07-06 Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfades

Country Status (7)

Country Link
US (1) US6683949B1 (de)
EP (1) EP1095495B1 (de)
JP (1) JP4318132B2 (de)
AT (1) ATE318479T1 (de)
CA (1) CA2336861A1 (de)
DE (1) DE69929978T2 (de)
WO (1) WO2000003529A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2379831A (en) * 2001-09-14 2003-03-19 Mitel Knowledge Corp Signalling between a telephone set and a peripheral device connected to it
AU2003265205A1 (en) * 2003-08-29 2005-03-16 Infineon Technologies Ag Communication device for connection to an external acoustic transducer
US20080043931A1 (en) * 2006-08-01 2008-02-21 Acoustic Technologies, Inc. Calibration system for telephone
ATE532319T1 (de) * 2008-12-30 2011-11-15 Gn Netcom As Automatische schalteinrichtung und bereichskalibrierung einer kopfhörerschnittstelleneinheit
US8737573B2 (en) * 2011-05-09 2014-05-27 Intelligent Decisions, Inc. Systems, methods, and devices for testing communication lines
US10237381B2 (en) 2017-07-13 2019-03-19 Sorenson Ip Holdings, Llc Telephone receiver identification

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206898A (en) 1989-05-26 1993-04-27 Shirohato Yakuhiin Co., Ltd. Transmission control unit
US5185789A (en) * 1990-05-30 1993-02-09 Plantronics, Inc. Universal telephone handset interface
US5241590A (en) 1990-12-18 1993-08-31 Dialing Devices Inc. Telephone dialing apparatus
US5555300A (en) 1994-03-07 1996-09-10 Gutzmer; Howard A. Telephone handset microphone level adjustment
US5912964A (en) 1996-03-27 1999-06-15 Hello Direct, Inc. Adaptive telephone handset interface
US5729603A (en) 1996-09-30 1998-03-17 Plantronics, Inc. Self-configuring telephone interface unit
US6128384A (en) * 1997-12-22 2000-10-03 Vxi Corporation Self configuring telephone headset amplifier

Also Published As

Publication number Publication date
DE69929978T2 (de) 2006-11-23
JP4318132B2 (ja) 2009-08-19
US6683949B1 (en) 2004-01-27
EP1095495B1 (de) 2006-02-22
JP2002520954A (ja) 2002-07-09
ATE318479T1 (de) 2006-03-15
CA2336861A1 (en) 2000-01-20
EP1095495A1 (de) 2001-05-02
WO2000003529A1 (en) 2000-01-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition