CA2210313C - Procede et appareil d'attenuation de l'echo dans un systeme de radiocommunication cellulaire a mains libres - Google Patents

Procede et appareil d'attenuation de l'echo dans un systeme de radiocommunication cellulaire a mains libres Download PDF

Info

Publication number: CA2210313C
Authority: CA; Canada
Prior art keywords: speech; noise; frame; frames; hands
Prior art date: 1995-01-19
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 - Fee Related

Application number

CA002210313A

Other languages

English (en)

Other versions

CA2210313A1 (fr

Inventor

Jim A. J. Rasmusson

Torbjorn W. Solve

Robert A. Zak

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.)

Ericsson Inc

Original Assignee

Ericsson 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.)

1995-01-19

Filing date

1996-01-19

Publication date

2005-10-04

1995-01-19 Priority claimed from US08/375,144 external-priority patent/US5835851A/en

1996-01-19 Application filed by Ericsson Inc filed Critical Ericsson Inc

1996-07-25 Publication of CA2210313A1 publication Critical patent/CA2210313A1/fr

2005-10-04 Application granted granted Critical

2005-10-04 Publication of CA2210313C publication Critical patent/CA2210313C/fr

2016-01-19 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

230000001413 cellular effect Effects 0.000 claims description 39
238000004891 communication Methods 0.000 claims description 23
230000002238 attenuated effect Effects 0.000 claims description 21
238000000034 method Methods 0.000 claims description 18
238000001514 detection method Methods 0.000 claims 2
230000006835 compression Effects 0.000 description 7
238000007906 compression Methods 0.000 description 7
230000005540 biological transmission Effects 0.000 description 5
230000009467 reduction Effects 0.000 description 4
230000000694 effects Effects 0.000 description 3
230000003122 modulative effect Effects 0.000 description 3
230000000737 periodic effect Effects 0.000 description 3
238000010586 diagram Methods 0.000 description 2
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208000018583 New-onset refractory status epilepticus Diseases 0.000 description 1
230000006978 adaptation Effects 0.000 description 1
230000001668 ameliorated effect Effects 0.000 description 1
230000010267 cellular communication Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
238000012937 correction Methods 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
238000005562 fading Methods 0.000 description 1
230000006870 function Effects 0.000 description 1
238000005259 measurement Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
239000003973 paint Substances 0.000 description 1
230000000505 pernicious effect Effects 0.000 description 1
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239000000126 substance Substances 0.000 description 1
230000026676 system process Effects 0.000 description 1
230000002123 temporal effect Effects 0.000 description 1

Landscapes

Mobile Radio Communication Systems (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

CA002210313A 1995-01-19 1996-01-19 Procede et appareil d'attenuation de l'echo dans un systeme de radiocommunication cellulaire a mains libres Expired - Fee Related CA2210313C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US08/375,144		1995-01-19
US08/375,144 US5835851A (en)	1995-01-19	1995-01-19	Method and apparatus for echo reduction in a hands-free cellular radio using added noise frames
PCT/US1996/000790 WO1996022651A1 (fr)	1995-01-19	1996-01-19	Procede et appareil d'attenuation de l'echo dans un systeme de radiocommunication cellulaire a mains libres

Publications (2)

Publication Number	Publication Date
CA2210313A1 CA2210313A1 (fr)	1996-07-25
CA2210313C true CA2210313C (fr)	2005-10-04

Family

ID=35395915

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002210313A Expired - Fee Related CA2210313C (fr)	1995-01-19	1996-01-19	Procede et appareil d'attenuation de l'echo dans un systeme de radiocommunication cellulaire a mains libres

Country Status (1)

Country	Link
CA (1)	CA2210313C (fr)

1996
- 1996-01-19 CA CA002210313A patent/CA2210313C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2210313A1 (fr)	1996-07-25

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Legal Events

Date	Code	Title	Description
2002-11-18	EEER	Examination request
2008-01-21	MKLA	Lapsed