DE69929978D1 - Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfades - Google Patents
Schnittstelle für telefonhandapparat mit dc messung und kalibrierungsverfahren des sendepfadesInfo
- 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
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)
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)
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)
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 |
-
1999
- 1999-06-28 US US09/340,541 patent/US6683949B1/en not_active Expired - Fee Related
- 1999-07-06 DE DE69929978T patent/DE69929978T2/de not_active Expired - Lifetime
- 1999-07-06 EP EP99932293A patent/EP1095495B1/de not_active Expired - Lifetime
- 1999-07-06 CA CA002336861A patent/CA2336861A1/en not_active Abandoned
- 1999-07-06 WO PCT/US1999/015261 patent/WO2000003529A1/en active IP Right Grant
- 1999-07-06 JP JP2000559684A patent/JP4318132B2/ja not_active Expired - Fee Related
- 1999-07-06 AT AT99932293T patent/ATE318479T1/de not_active IP Right Cessation
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 |