AU501638B1 - Speech controlled loud-speaking - Google Patents

Speech controlled loud-speaking

Info

Publication number
AU501638B1
AU501638B1 AU34606/78A AU3460678A AU501638B1 AU 501638 B1 AU501638 B1 AU 501638B1 AU 34606/78 A AU34606/78 A AU 34606/78A AU 3460678 A AU3460678 A AU 3460678A AU 501638 B1 AU501638 B1 AU 501638B1
Authority
AU
Australia
Prior art keywords
speaking
speech controlled
loud
controlled loud
speech
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
Application number
AU34606/78A
Inventor
S. & Walla K Guntersdorfer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of AU501638B1 publication Critical patent/AU501638B1/en
Expired legal-status Critical Current

Links

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
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
AU34606/78A 1977-03-30 1978-03-30 Speech controlled loud-speaking Expired AU501638B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2714132A DE2714132C3 (en) 1977-03-30 1977-03-30 Circuit arrangement for a voice-controlled loudspeaker device
DEDE2714132 1977-03-30

Publications (1)

Publication Number Publication Date
AU501638B1 true AU501638B1 (en) 1979-06-28

Family

ID=6005133

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34606/78A Expired AU501638B1 (en) 1977-03-30 1978-03-30 Speech controlled loud-speaking

Country Status (6)

Country Link
AU (1) AU501638B1 (en)
BE (1) BE865523A (en)
BR (1) BR7801935A (en)
DE (1) DE2714132C3 (en)
FI (1) FI64730C (en)
IT (1) IT1093691B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU578812B2 (en) * 1985-03-22 1988-11-03 Tie/Communications, Inc. Speakerphone control circuit having low gain states and method for controlling gain of speakerphone

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3063165D1 (en) * 1979-10-11 1983-06-16 Marconi Co Ltd A voice detector
DE3148305A1 (en) * 1981-12-03 1983-06-09 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin CIRCUIT ARRANGEMENT FOR A HANDS-FREE UNIT
DE3332305A1 (en) * 1983-09-07 1985-04-04 Siemens AG, 1000 Berlin und 8000 München Method of controllably attenuating digital signals
DE3541794A1 (en) * 1985-11-26 1987-05-27 Siemens Ag VOICE CONTROL IN A TELEPHONE STATION
DE3728109C1 (en) * 1987-08-22 1989-03-16 Telefonbau & Normalzeit Gmbh Method for voice-controlled attenuation control in telephone transmission circuits
DE3908283C2 (en) * 1989-03-14 1996-04-25 Siemens Ag Control of voice-controlled speech direction recognition
DE3908282A1 (en) * 1989-03-14 1990-09-20 Siemens Ag SPEAK DIRECTION DETECTION IN A DIGITAL TELEPHONE STATION
DE3919345A1 (en) * 1989-06-13 1990-12-20 Siemens Ag Attenuation control circuit for hands-free telephone station - has extra second comparator, whose minus input is coupled to tap for meter value
DE4012354C2 (en) * 1990-04-18 1995-06-22 Siemens Ag Handsfree telephone station
DE19525705A1 (en) * 1995-07-14 1997-01-16 Bahram Adniazar Optical wave guide telephone set - has automatic switching within each telephone device between transmission and reception modes depending on received speech signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU578812B2 (en) * 1985-03-22 1988-11-03 Tie/Communications, Inc. Speakerphone control circuit having low gain states and method for controlling gain of speakerphone

Also Published As

Publication number Publication date
BE865523A (en) 1978-10-02
BR7801935A (en) 1979-05-22
DE2714132A1 (en) 1978-10-05
IT1093691B (en) 1985-07-26
FI64730C (en) 1983-12-12
DE2714132B2 (en) 1979-06-13
IT7821471A0 (en) 1978-03-22
FI64730B (en) 1983-08-31
DE2714132C3 (en) 1980-02-07
FI780951A (en) 1978-10-01

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