GB0021974D0 - Echo reduction in two-way communication - Google Patents

Echo reduction in two-way communication

Info

Publication number
GB0021974D0
GB0021974D0 GB0021974A GB0021974A GB0021974D0 GB 0021974 D0 GB0021974 D0 GB 0021974D0 GB 0021974 A GB0021974 A GB 0021974A GB 0021974 A GB0021974 A GB 0021974A GB 0021974 D0 GB0021974 D0 GB 0021974D0
Authority
GB
United Kingdom
Prior art keywords
way communication
echo reduction
echo
reduction
communication
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.)
Ceased
Application number
GB0021974A
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.)
Simoco International Ltd
Original Assignee
Simoco International Ltd
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 Simoco International Ltd filed Critical Simoco International Ltd
Priority to GB0021974A priority Critical patent/GB0021974D0/en
Publication of GB0021974D0 publication Critical patent/GB0021974D0/en
Priority to PCT/GB2001/004007 priority patent/WO2002021807A2/en
Priority to GB0121569A priority patent/GB2367449A/en
Ceased legal-status Critical Current

Links

GB0021974A 2000-09-07 2000-09-07 Echo reduction in two-way communication Ceased GB0021974D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0021974A GB0021974D0 (en) 2000-09-07 2000-09-07 Echo reduction in two-way communication
PCT/GB2001/004007 WO2002021807A2 (en) 2000-09-07 2001-09-06 Echo reduction in two-way communication
GB0121569A GB2367449A (en) 2000-09-07 2001-09-06 Echo reduction in two-way communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0021974A GB0021974D0 (en) 2000-09-07 2000-09-07 Echo reduction in two-way communication

Publications (1)

Publication Number Publication Date
GB0021974D0 true GB0021974D0 (en) 2000-10-25

Family

ID=9899039

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0021974A Ceased GB0021974D0 (en) 2000-09-07 2000-09-07 Echo reduction in two-way communication
GB0121569A Withdrawn GB2367449A (en) 2000-09-07 2001-09-06 Echo reduction in two-way communication

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0121569A Withdrawn GB2367449A (en) 2000-09-07 2001-09-06 Echo reduction in two-way communication

Country Status (2)

Country Link
GB (2) GB0021974D0 (en)
WO (1) WO2002021807A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8416945B2 (en) * 2004-03-26 2013-04-09 Plantronics, Inc. Adaptive duplexing for amplified telephone

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233216A1 (en) * 1985-08-20 1987-08-26 Motorola, Inc. Speakerphone for radio and landline telephones
DE3541794A1 (en) * 1985-11-26 1987-05-27 Siemens Ag VOICE CONTROL IN A TELEPHONE STATION
US4741018A (en) * 1987-04-24 1988-04-26 Motorola, Inc. Speakerphone using digitally compressed audio to control voice path gain
AT393426B (en) * 1987-09-03 1991-10-25 Siemens Ag Oesterreich HANDS-FREE DEVICE
DE59209677D1 (en) * 1991-01-15 1999-05-27 Aeg Mobile Communication Arrangement for volume adjustment in a hands-free system
JPH08204619A (en) * 1995-01-26 1996-08-09 Nec Corp Echo suppressor
US5867573A (en) * 1996-02-06 1999-02-02 Lucent Technologies Inc. Telephone handset interface with feedback control
ATE306781T1 (en) * 2000-05-18 2005-10-15 Ericsson Inc NOISE-ADAPTIVE COMMUNICATION SIGNAL LEVEL CONTROL

Also Published As

Publication number Publication date
WO2002021807A3 (en) 2002-05-16
GB0121569D0 (en) 2001-10-24
WO2002021807A2 (en) 2002-03-14
GB2367449A (en) 2002-04-03

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)