DK152637C - System til styring af taleretningen i duplekssamtaleanlaeg - Google Patents

System til styring af taleretningen i duplekssamtaleanlaeg

Info

Publication number: DK152637C
Authority: DK; Denmark
Prior art keywords: control system; directory control; speech; speech directory; directory
Prior art date: 1974-10-29

Application number

DK483775A

Other languages

English (en)

Other versions

DK483775A (da

DK152637B (da

Inventor

Bjoern Andersen

Original Assignee

Maxman 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.)

1974-10-29

Filing date

1975-10-28

Publication date

1988-08-15

1975-10-28 Application filed by Maxman Ag filed Critical Maxman Ag

1976-04-30 Publication of DK483775A publication Critical patent/DK483775A/da

1988-03-28 Publication of DK152637B publication Critical patent/DK152637B/da

1988-08-15 Application granted granted Critical

1988-08-15 Publication of DK152637C publication Critical patent/DK152637C/da

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
- H04M9/085—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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

DK483775A 1974-10-29 1975-10-28 System til styring af taleretningen i duplekssamtaleanlaeg DK152637C (da)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NO743893		1974-10-29
NO743893A NO134477C (da)	1974-10-29	1974-10-29

Publications (3)

Publication Number	Publication Date
DK483775A DK483775A (da)	1976-04-30
DK152637B DK152637B (da)	1988-03-28
DK152637C true DK152637C (da)	1988-08-15

Family

ID=19881909

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK483775A DK152637C (da)	1974-10-29	1975-10-28	System til styring af taleretningen i duplekssamtaleanlaeg

Country Status (15)

Country	Link
US (1)	US4052562A (da)
JP (2)	JPS5167008A (da)
AT (1)	AT358634B (da)
BE (1)	BE835013A (da)
CA (1)	CA1040332A (da)
CH (1)	CH600711A5 (da)
DE (1)	DE2546926C3 (da)
DK (1)	DK152637C (da)
FR (1)	FR2290108A1 (da)
GB (1)	GB1507866A (da)
IT (1)	IT1044596B (da)
NL (1)	NL7512677A (da)
NO (1)	NO134477C (da)
SE (1)	SE400443B (da)
ZA (1)	ZA756825B (da)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2638286C3 (de) *	1976-08-25	1979-03-01	Dasy Inter S.A., Genf (Schweiz)	Schaltungsanordnung für ein Freisprechertelefon
US4215252A (en) *	1978-09-27	1980-07-29	Communications Satellite Corporation	Video teleconference audio echo control unit
DE2952122A1 (de) *	1979-12-22	1981-06-25	Deutsche Itt Industries Gmbh, 7800 Freiburg	Schaltungsanordnung fuer sprachgesteuerte freisprechgeraete
DE3007632A1 (de) *	1980-02-29	1981-09-10	Deutsche Itt Industries Gmbh, 7800 Freiburg	Schaltungsanordnung zur rueckkopplungsverhinderung bei telefonapparaten mit freisprech- und/oder mithoermoeglichkeit
JPS5797262A (en) *	1980-12-09	1982-06-16	Nippon Telegr & Teleph Corp <Ntt>	Loud speaker telephone set system
US4378603A (en) *	1980-12-23	1983-03-29	Motorola, Inc.	Radiotelephone with hands-free operation
US4400584A (en) *	1982-04-05	1983-08-23	Motorola, Inc.	Speakerphone for radio and, landline telephones
GB2122851B (en) *	1982-06-10	1986-03-19	Standard Telephones Cables Ltd	Loudspeaking telephones
JPS5916434A (ja) *	1982-07-19	1984-01-27	Hitachi Ltd	光通信方式
GB2137454A (en) *	1983-03-01	1984-10-03	Standard Telephones Cables Ltd	Handsfree telephone system
GB2137049B (en) *	1983-03-15	1986-05-14	Standard Telephones Cables Ltd	Handsfree telephone
US4542263A (en) *	1984-03-07	1985-09-17	Oki Electric Industry Co., Ltd.	Speech control circuit
US4860359A (en) *	1984-10-15	1989-08-22	Rockwell International Corporation	Method of voice operated transmit control
CA1226981A (en) *	1984-10-30	1987-09-15	Novatel Communications Ltd.	Two way telephone communication system
FI78373C (fi) *	1988-01-18	1989-07-10	Sostel Oy	Telefontrafik- eller dataoeverfoeringssystem.
EP0423537B1 (de) *	1989-10-18	1995-03-01	Siemens Aktiengesellschaft	Verfahren zur automatischen Sprachrichtungsumschaltung und Schaltungsanordnung zur Durchführung des Verfahrens
US7072476B2 (en) *	1997-02-18	2006-07-04	Matech, Inc.	Audio headset
US5907538A (en) *	1997-02-18	1999-05-25	White; Donald R.	Full duplex communication circuit with a transducer for simultaneously generating audio output and receiving audio input
CN1879393A (zh) *	2003-11-11	2006-12-13	马帝克公司	具有单个换能器的双向通信设备
WO2005048574A1 (en) *	2003-11-11	2005-05-26	Matech, Inc.	Automatic-switching wireless communication device
JP2006108777A (ja) *	2004-09-30	2006-04-20	Toshiba Corp	電話端末及びこの電話端末を使用した電話システム、及び電話端末の制御方法
US8315379B2 (en) *	2004-11-10	2012-11-20	Matech, Inc.	Single transducer full duplex talking circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL225471A (da) *	1957-11-26	1900-01-01
NL267461A (da) *	1960-10-04	1900-01-01
DE1562130A1 (de) *	1968-01-12	1970-10-29	Lauffer Dr Ing Hans	Wechselsprechanlage
BE786256A (fr) *	1971-07-15	1973-01-15	Philips Nv	Dispositif de commutation commande par des signaux
FR2157143A5 (da) *	1971-10-19	1973-06-01	Queffeulou Jean Yves
NL155700B (nl) *	1971-12-08	1978-01-16	Philips Nv	Luidsprekende telefooninrichting.
US3725585A (en) *	1972-03-21	1973-04-03	Itt	Loudspeaking telephone station circuit
SE354557B (da) *	1972-03-22	1973-03-12	Ericsson Telefon Ab L M
US3832491A (en) *	1973-02-13	1974-08-27	Communications Satellite Corp	Digital voice switch with an adaptive digitally-controlled threshold
FR2224961B1 (da) *	1973-04-06	1977-04-29	Voyer Paul

1974
- 1974-10-29 NO NO743893A patent/NO134477C/no unknown
1975
- 1975-10-16 CH CH1342975A patent/CH600711A5/xx not_active IP Right Cessation
- 1975-10-20 US US05/624,250 patent/US4052562A/en not_active Expired - Lifetime
- 1975-10-20 DE DE2546926A patent/DE2546926C3/de not_active Expired
- 1975-10-21 CA CA238,075A patent/CA1040332A/en not_active Expired
- 1975-10-23 AT AT808375A patent/AT358634B/de not_active IP Right Cessation
- 1975-10-28 SE SE7512043A patent/SE400443B/xx not_active IP Right Cessation
- 1975-10-28 JP JP50129760A patent/JPS5167008A/ja active Pending
- 1975-10-28 GB GB44473/75A patent/GB1507866A/en not_active Expired
- 1975-10-28 DK DK483775A patent/DK152637C/da not_active IP Right Cessation
- 1975-10-28 FR FR7532958A patent/FR2290108A1/fr active Granted
- 1975-10-29 NL NL7512677A patent/NL7512677A/xx not_active Application Discontinuation
- 1975-10-29 BE BE161378A patent/BE835013A/xx not_active IP Right Cessation
- 1975-10-29 ZA ZA00756825A patent/ZA756825B/xx unknown
- 1975-10-29 IT IT28779/75A patent/IT1044596B/it active
1983
- 1983-04-25 JP JP1983062014U patent/JPS5952767U/ja active Granted

Also Published As

Publication number	Publication date
NL7512677A (nl)	1976-05-04
BE835013A (fr)	1976-02-16
DE2546926A1 (de)	1976-05-06
US4052562A (en)	1977-10-04
ZA756825B (en)	1976-10-27
ATA808375A (de)	1980-02-15
CA1040332A (en)	1978-10-10
FR2290108B1 (da)	1979-06-15
IT1044596B (it)	1980-03-31
DE2546926C3 (de)	1980-12-18
DK483775A (da)	1976-04-30
NO743893L (da)	1976-04-30
AU8602675A (en)	1977-05-05
CH600711A5 (da)	1978-06-30
JPS5167008A (da)	1976-06-10
GB1507866A (en)	1978-04-19
SE7512043L (sv)	1976-04-30
JPS6244610Y2 (da)	1987-11-26
JPS5952767U (ja)	1984-04-06
NO134477B (da)	1976-07-05
FR2290108A1 (fr)	1976-05-28
SE400443B (sv)	1978-03-20
DK152637B (da)	1988-03-28
NO134477C (da)	1976-10-13
DE2546926B2 (de)	1980-04-24
AT358634B (de)	1980-09-25

Legal Events

Date	Code	Title	Description
1990-06-18	PBP	Patent lapsed

Publication	Publication Date	Title
DK152637C (da)	1988-08-15	System til styring af taleretningen i duplekssamtaleanlaeg
IS956B6 (is)	1977-01-28	Kerfi til að stjórna vökvabúnaði
BE833473A (fr)	1976-03-16	Membrane
SE414419B (sv)	1980-07-28	Hydrauliskt styrsystem
DK487275A (da)	1976-05-01	Fremgangsmade til fremstilling af hydroxypivaldehyd
NO137147C (no)	1978-01-11	Regulerings-system.
AT336475B (de)	1977-05-10	Drehofenanlage
DK442977A (da)	1977-10-06	Fremgangsmade til fremstilling af gamma-l-glutamyltaurin
DK193475A (da)	1975-11-04	Anleg til styring af et absorptionsanleg
DK182675A (da)	1975-10-30	Fremgangsmade til isolering af gamma-l-glutamyltaurin
SE414856B (sv)	1980-08-18	Hogtalande telefonsystem
DK479475A (da)	1976-04-26	Fremgangsmade til fremstilling af penicilliner
DK141057C (da)	1980-06-16	Tagvindue
DK492275A (da)	1976-05-03	Fremgangsmade til fremstilling af halogenantraquinoner
DK373475A (da)	1976-02-21	Fremgangsmade til optrekning af daser
DK139188B (da)	1979-01-08	Styresystem.
NO137803C (no)	1978-05-10	Programhukommelsesstyrt telekommunikasjonssystem
AT346083B (de)	1978-10-25	Diktieranlage
NL7609065A (nl)	1977-02-15	Telecommunicatiestelsel met afstandbesturing.
SE7501324L (sv)	1975-08-08	Styrsystem.
DK137539B (da)	1978-03-20	Fremgangsmade til fremstilling af 11beta-fluor-4-androsten-3-oner
SE7510500L (sv)	1976-04-20	Antilasningsreglersystem
DK158275A (da)	1975-10-13	Turbinekontrolsystem
DK482575A (da)	1976-04-29	Fremgangsmade til fremstilling af prostaglandinanaloge
DK199575A (da)	1975-11-10	Telekommunikationsanleg