AU2505684A - Creación de Inventos y Patentes con Inteligencia Artificial

AU2505684A – Digital handsfree telephone
– Google Patents

AU2505684A – Digital handsfree telephone
– Google Patents
Digital handsfree telephone

Info

Publication number
AU2505684A

AU2505684A
AU25056/84A
AU2505684A
AU2505684A
AU 2505684 A
AU2505684 A
AU 2505684A
AU 25056/84 A
AU25056/84 A
AU 25056/84A
AU 2505684 A
AU2505684 A
AU 2505684A
AU 2505684 A
AU2505684 A
AU 2505684A
Authority
AU
Australia
Prior art keywords
handsfree telephone
digital
digital handsfree
telephone
handsfree
Prior art date
1983-03-01
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.)

Abandoned

Application number
AU25056/84A
Inventor
Bjorn Napier Hansen
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.)

International Standard Electric Corp

Original Assignee
International Standard Electric Corp
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.)
1983-03-01
Filing date
1984-02-27
Publication date
1984-09-06
Family has litigation

First worldwide family litigation filed
litigation
Critical
https://patents.darts-ip.com/?family=10538762&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2505684(A)
«Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1984-02-27
Application filed by International Standard Electric Corp
filed
Critical
International Standard Electric Corp

1984-09-06
Publication of AU2505684A
publication
Critical
patent/AU2505684A/en

Status
Abandoned
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H04—ELECTRIC COMMUNICATION TECHNIQUE

H04M—TELEPHONIC COMMUNICATION

H04M9/00—Arrangements for interconnection not involving centralised switching

H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital techniques

AU25056/84A
1983-03-01
1984-02-27
Digital handsfree telephone

Abandoned

AU2505684A
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

GB08305572A

GB2137458B
(en)

1983-03-01
1983-03-01
Digital handsfree telephone

GB8305572

1983-03-01

Publications (1)

Publication Number
Publication Date

AU2505684A
true

AU2505684A
(en)

1984-09-06

Family
ID=10538762
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU25056/84A
Abandoned

AU2505684A
(en)

1983-03-01
1984-02-27
Digital handsfree telephone

Country Status (8)

Country
Link

US
(1)

US4560840A
(en)

EP
(1)

EP0120325B1
(en)

JP
(1)

JPS59210758A
(en)

AU
(1)

AU2505684A
(en)

BE
(1)

BE899042R
(en)

DE
(1)

DE3471221D1
(en)

ES
(1)

ES8503907A1
(en)

GB
(1)

GB2137458B
(en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4712231A
(en)

1984-04-06
1987-12-08
Shure Brothers, Inc.
Teleconference system

US4706274A
(en)

1984-05-11
1987-11-10
Southwestern Bell Telecommunications, Inc.
Cordless telephone system

US4696032A
(en)

1985-02-26
1987-09-22
Siemens Corporate Research & Support, Inc.
Voice switched gain system

US4715062A
(en)

1985-03-22
1987-12-22
Tie/Communications, Inc.
Speakerphone control circuit having low gain states and method for controlling gain of speakerphone

GB2174578B
(en)

1985-05-04
1988-11-09
Stc Plc
Loud speaking telephone

CA1233925A
(en)

1985-05-10
1988-03-08
Gordon J. Reesor
Digital loudspeaking telephone

US4748665A
(en)

1985-07-01
1988-05-31
Rockwell International Corporation
Analog echo suppressor

US5022074A
(en)

1985-07-01
1991-06-04
Rockwell International Corporation
Digital echo suppressor

US4700382A
(en)

1986-03-03
1987-10-13
American Telephone And Telegraph Company, At&T Information Systems, Inc.
Voice-switched telephone circuit with center idle state

JPH0622344B2
(en)

1986-07-26
1994-03-23
日本電気株式会社

Mobile communication system

JPS63108251U
(en)

1986-12-27
1988-07-12

US4851104A
(en)

1987-02-27
1989-07-25
General Signal Corporation
Instrument for potentiometric electrochemical measurements

FR2612029B1
(en)

1987-03-03
1989-05-12
Connan Jean Louis

DEVICE FOR REALIZING THE «HANDSFREE» FUNCTION IN A TELEPHONE SET, COMBINING THE GAIN SWITCHING AND ECHO CANCELLATION FUNCTIONS

US4843621A
(en)

1987-04-24
1989-06-27
Motorola, Inc.
Speakerphone using digitally compressed audio to detect acoustic feedback

US4741018A
(en)

1987-04-24
1988-04-26
Motorola, Inc.
Speakerphone using digitally compressed audio to control voice path gain

DE3810068A1
(en)

1988-03-25
1989-10-05
Telefonbau & Normalzeit Gmbh

METHOD FOR DETECTING VOICE SIGNALS

FR2636797B1
(en)

1988-09-16
1990-11-09
Sgs Thomson Microelectronics

INTEGRATED CIRCUIT FOR TELEPHONE SET WITH SIGNAL ENVELOPE DETECTOR

US5007046A
(en)

1988-12-28
1991-04-09
At&T Bell Laboratories
Computer controlled adaptive speakerphone

US5199064A
(en)

1990-12-03
1993-03-30
Advanced Micro Devices, Inc.
Fully-integrated telephone unit

DE4130045A1
(en)

1991-09-10
1993-03-18
Standard Elektrik Lorenz Ag

CIRCUIT ARRANGEMENT FOR THE DYNAMIC CONTROL OF A VOICE TERMINAL

GB2278984A
(en)

1993-06-11
1994-12-14
Redifon Technology Limited
Speech presence detector

FI108830B
(en)

1993-12-23
2002-03-28
Nokia Corp

Method and apparatus for echo suppression in a telephone apparatus

US6535604B1
(en)

1998-09-04
2003-03-18
Nortel Networks Limited
Voice-switching device and method for multiple receivers

WO2000056036A2
(en)

1999-03-15
2000-09-21
Vocaltec Communications Ltd.
Echo suppression device and method for performing the same

GB2375688B
(en)

2001-05-14
2004-09-29
Motorola Ltd
Telephone apparatus and a communication method using such apparatus

DE602005008914D1
(en)

2005-05-09
2008-09-25
Mitel Networks Corp

A method and system for reducing the training time of an acoustic echo canceller in a full duplex audio conference system by acoustic beamforming

Family Cites Families (10)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

NL267461A
(en)

1960-10-04
1900-01-01

GB979825A
(en)

1962-03-09
1965-01-06
Gylling & Co Ab
Amplifier for two way speech transmission

GB1261521A
(en)

1968-02-05
1972-01-26
Post Office
Improvements in or relating to telecommunication systems

US3751602A
(en)

1971-08-13
1973-08-07
Bell Telephone Labor Inc
Loudspeaking telephone

FR2255762B1
(en)

1973-12-21
1976-07-23
Ibm France

US3970786A
(en)

1974-06-27
1976-07-20
Stromberg-Carlson Corporation
Loudspeaking telephone with improved receive sensitivity

CA996692A
(en)

1974-12-12
1976-09-07
Russell W. Brown
Digital control of a loudspeaking telephone system

DE2651688A1
(en)

1976-11-12
1978-05-24
Siemens Ag
Full-duplex voice-controlled communications system – has voice direction recognition corrected according to noise level using digital circuit

JPS5797262A
(en)

1980-12-09
1982-06-16
Nippon Telegr & Teleph Corp
Loud speaker telephone set system

US4465902A
(en)

1982-10-08
1984-08-14
Zenith Electronics Corporation
Digital space phone system

1983

1983-03-01
GB
GB08305572A
patent/GB2137458B/en
not_active
Expired

1984

1984-02-27
AU
AU25056/84A
patent/AU2505684A/en
not_active
Abandoned

1984-02-28
EP
EP84102045A
patent/EP0120325B1/en
not_active
Expired

1984-02-28
DE
DE8484102045T
patent/DE3471221D1/en
not_active
Expired

1984-02-29
US
US06/584,579
patent/US4560840A/en
not_active
Expired – Fee Related

1984-03-01
ES
ES530194A
patent/ES8503907A1/en
not_active
Expired

1984-03-01
BE
BE2/60356A
patent/BE899042R/en
not_active
IP Right Cessation

1984-03-01
JP
JP59039697A
patent/JPS59210758A/en
active
Pending

Also Published As

Publication number
Publication date

US4560840A
(en)

1985-12-24

BE899042R
(en)

1984-09-03

EP0120325B1
(en)

1988-05-11

GB2137458A
(en)

1984-10-03

EP0120325A1
(en)

1984-10-03

ES530194A0
(en)

1985-03-16

GB2137458B
(en)

1986-11-19

JPS59210758A
(en)

1984-11-29

DE3471221D1
(en)

1988-06-16

GB8305572D0
(en)

1983-03-30

ES8503907A1
(en)

1985-03-16

Información de contacto