FR2328333A1 - Systeme de liaison telephonique en conference - Google Patents
Systeme de liaison telephonique en conferenceInfo
- Publication number
- FR2328333A1 FR2328333A1 FR7631181A FR7631181A FR2328333A1 FR 2328333 A1 FR2328333 A1 FR 2328333A1 FR 7631181 A FR7631181 A FR 7631181A FR 7631181 A FR7631181 A FR 7631181A FR 2328333 A1 FR2328333 A1 FR 2328333A1
- Authority
- FR
- France
- Prior art keywords
- link system
- telephone link
- conference telephone
- conference
- telephone
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephonic Communication Services (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/623,545 US4008376A (en) | 1975-10-17 | 1975-10-17 | Loudspeaking teleconferencing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2328333A1 true FR2328333A1 (fr) | 1977-05-13 |
FR2328333B1 FR2328333B1 (fr) | 1979-02-23 |
Family
ID=24498485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7631181A Granted FR2328333A1 (fr) | 1975-10-17 | 1976-10-15 | Systeme de liaison telephonique en conference |
Country Status (10)
Country | Link |
---|---|
US (1) | US4008376A (fr) |
JP (1) | JPS5250105A (fr) |
BE (1) | BE847235A (fr) |
CA (1) | CA1065072A (fr) |
DE (1) | DE2646924C3 (fr) |
ES (1) | ES452425A1 (fr) |
FR (1) | FR2328333A1 (fr) |
GB (1) | GB1506333A (fr) |
IT (1) | IT1070467B (fr) |
SE (1) | SE422516B (fr) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4107473A (en) * | 1977-04-29 | 1978-08-15 | Dracon Industries | Two-way paging system transmission direction sensing and control apparatus and method |
US4456789A (en) * | 1978-03-07 | 1984-06-26 | The Post Office | Audio teleconferencing |
US4215252A (en) * | 1978-09-27 | 1980-07-29 | Communications Satellite Corporation | Video teleconference audio echo control unit |
WO1980002627A1 (fr) * | 1979-05-11 | 1980-11-27 | Toa Electric Co Ltd | Systeme de commutation commande par la voix |
NL8202667A (nl) * | 1982-07-02 | 1984-02-01 | Philips Nv | Vierdraadsversterkte lijn en conferentieschakeling bevattende dergelijke vierdraadsversterkte lijnen. |
JPS5976160U (ja) * | 1982-11-12 | 1984-05-23 | 富士通株式会社 | 拡声会議電話装置 |
US4941187A (en) * | 1984-02-03 | 1990-07-10 | Slater Robert W | Intercom apparatus for integrating disparate audio sources for use in light aircraft or similar high noise environments |
US4712231A (en) * | 1984-04-06 | 1987-12-08 | Shure Brothers, Inc. | Teleconference system |
JPS61242499A (ja) * | 1985-04-19 | 1986-10-28 | シユア・ブラザ−ズ・インコ−ポレイテツド | マイクロホン装置 |
US4860366A (en) * | 1986-07-31 | 1989-08-22 | Nec Corporation | Teleconference system using expanders for emphasizing a desired signal with respect to undesired signals |
US4803720A (en) * | 1986-09-22 | 1989-02-07 | International Business Machines Corporation | Dual plane cross point switch architecture for a micro-PBX |
DE3734447C1 (de) * | 1987-10-12 | 1989-05-18 | Telefonbau & Normalzeit Gmbh | Konferenz-Freisprecheinrichtung |
US5040206A (en) * | 1989-02-01 | 1991-08-13 | Ricoh Company, Ltd. | Communication apparatus having driving mechanism and speaker-phone |
JPH04311197A (ja) * | 1991-04-09 | 1992-11-02 | Canon Inc | 電話交換装置 |
US5271057A (en) * | 1991-10-09 | 1993-12-14 | Bell Communications Research, Inc. | Audio processing system for teleconferencing system |
US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
US8352400B2 (en) | 1991-12-23 | 2013-01-08 | Hoffberg Steven M | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore |
US5297210A (en) * | 1992-04-10 | 1994-03-22 | Shure Brothers, Incorporated | Microphone actuation control system |
US5434912A (en) * | 1993-08-11 | 1995-07-18 | Bell Communications Research, Inc. | Audio processing system for point-to-point and multipoint teleconferencing |
US6332153B1 (en) * | 1996-07-31 | 2001-12-18 | Vocaltec Communications Ltd. | Apparatus and method for multi-station conferencing |
KR100233166B1 (ko) * | 1997-07-04 | 1999-12-01 | 윤종용 | 다수의 마이크들을 구비하는 핸드 프리 장치 및 그 제어 방법 |
US6535604B1 (en) * | 1998-09-04 | 2003-03-18 | Nortel Networks Limited | Voice-switching device and method for multiple receivers |
US8364136B2 (en) | 1999-02-01 | 2013-01-29 | Steven M Hoffberg | Mobile system, a method of operating mobile system and a non-transitory computer readable medium for a programmable control of a mobile system |
US7966078B2 (en) * | 1999-02-01 | 2011-06-21 | Steven Hoffberg | Network media appliance system and method |
JP4734714B2 (ja) * | 2000-12-22 | 2011-07-27 | ヤマハ株式会社 | 収音再生方法およびその装置 |
US9001702B2 (en) | 2000-12-26 | 2015-04-07 | Polycom, Inc. | Speakerphone using a secure audio connection to initiate a second secure connection |
US7339605B2 (en) * | 2004-04-16 | 2008-03-04 | Polycom, Inc. | Conference link between a speakerphone and a video conference unit |
US8948059B2 (en) * | 2000-12-26 | 2015-02-03 | Polycom, Inc. | Conference endpoint controlling audio volume of a remote device |
US8964604B2 (en) * | 2000-12-26 | 2015-02-24 | Polycom, Inc. | Conference endpoint instructing conference bridge to dial phone number |
US8976712B2 (en) * | 2001-05-10 | 2015-03-10 | Polycom, Inc. | Speakerphone and conference bridge which request and perform polling operations |
US8934382B2 (en) * | 2001-05-10 | 2015-01-13 | Polycom, Inc. | Conference endpoint controlling functions of a remote device |
US7978838B2 (en) * | 2001-12-31 | 2011-07-12 | Polycom, Inc. | Conference endpoint instructing conference bridge to mute participants |
US8705719B2 (en) | 2001-12-31 | 2014-04-22 | Polycom, Inc. | Speakerphone and conference bridge which receive and provide participant monitoring information |
US8102984B2 (en) * | 2001-12-31 | 2012-01-24 | Polycom Inc. | Speakerphone and conference bridge which receive and provide participant monitoring information |
US8947487B2 (en) | 2001-12-31 | 2015-02-03 | Polycom, Inc. | Method and apparatus for combining speakerphone and video conference unit operations |
US8934381B2 (en) * | 2001-12-31 | 2015-01-13 | Polycom, Inc. | Conference endpoint instructing a remote device to establish a new connection |
US8144854B2 (en) * | 2001-12-31 | 2012-03-27 | Polycom Inc. | Conference bridge which detects control information embedded in audio information to prioritize operations |
US20050213726A1 (en) * | 2001-12-31 | 2005-09-29 | Polycom, Inc. | Conference bridge which transfers control information embedded in audio information between endpoints |
US8885523B2 (en) * | 2001-12-31 | 2014-11-11 | Polycom, Inc. | Speakerphone transmitting control information embedded in audio information through a conference bridge |
US8223942B2 (en) * | 2001-12-31 | 2012-07-17 | Polycom, Inc. | Conference endpoint requesting and receiving billing information from a conference bridge |
US6888935B1 (en) | 2003-01-15 | 2005-05-03 | Cisco Technology, Inc. | Speak-louder signaling system for conference calls |
US8031853B2 (en) * | 2004-06-02 | 2011-10-04 | Clearone Communications, Inc. | Multi-pod conference systems |
US8644525B2 (en) * | 2004-06-02 | 2014-02-04 | Clearone Communications, Inc. | Virtual microphones in electronic conferencing systems |
US7864937B2 (en) * | 2004-06-02 | 2011-01-04 | Clearone Communications, Inc. | Common control of an electronic multi-pod conferencing system |
US7916849B2 (en) * | 2004-06-02 | 2011-03-29 | Clearone Communications, Inc. | Systems and methods for managing the gating of microphones in a multi-pod conference system |
US8457614B2 (en) * | 2005-04-07 | 2013-06-04 | Clearone Communications, Inc. | Wireless multi-unit conference phone |
US8199791B2 (en) * | 2005-06-08 | 2012-06-12 | Polycom, Inc. | Mixed voice and spread spectrum data signaling with enhanced concealment of data |
US8126029B2 (en) * | 2005-06-08 | 2012-02-28 | Polycom, Inc. | Voice interference correction for mixed voice and spread spectrum data signaling |
JP4894353B2 (ja) * | 2006-05-26 | 2012-03-14 | ヤマハ株式会社 | 放収音装置 |
US8494178B1 (en) | 2010-08-20 | 2013-07-23 | Pixar | Avoiding audio feedback |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE363032A (fr) * | 1929-06-22 | |||
NL125146C (fr) * | 1958-12-29 | |||
DE1141681B (de) * | 1961-04-07 | 1962-12-27 | Huettenwerk Oberhausen Ag | Fernsprechteilnehmerschaltung fuer Linien-Waehlanlagen mit Freisprecheinrichtung |
US3395255A (en) * | 1964-07-01 | 1968-07-30 | Bell Telephone Labor Inc | Loudspeaking telephone |
US3536850A (en) * | 1966-06-07 | 1970-10-27 | Ericsson Telefon Ab L M | Cord circuit arrangement for office telephone systems |
US3437758A (en) * | 1966-07-29 | 1969-04-08 | Bell Telephone Labor Inc | Conference telephone system |
US3530247A (en) * | 1967-08-29 | 1970-09-22 | Bell Telephone Labor Inc | Digital vocoder conference system |
US3751602A (en) * | 1971-08-13 | 1973-08-07 | Bell Telephone Labor Inc | Loudspeaking telephone |
JPS4840318A (fr) * | 1971-09-25 | 1973-06-13 | ||
US3755625A (en) * | 1971-10-12 | 1973-08-28 | Bell Telephone Labor Inc | Multimicrophone loudspeaking telephone system |
US3860756A (en) * | 1973-03-23 | 1975-01-14 | Nitsuko Ltd | Automatic voice-path switching circuit for a speaker phone telephone set |
US3891801A (en) * | 1974-01-21 | 1975-06-24 | Quindar Electronics | Four-way four-wire active bridge |
-
1975
- 1975-10-17 US US05/623,545 patent/US4008376A/en not_active Expired - Lifetime
-
1976
- 1976-09-28 CA CA262,232A patent/CA1065072A/fr not_active Expired
- 1976-10-08 SE SE7611217A patent/SE422516B/xx unknown
- 1976-10-13 BE BE171475A patent/BE847235A/fr not_active IP Right Cessation
- 1976-10-13 GB GB42619/76A patent/GB1506333A/en not_active Expired
- 1976-10-15 IT IT69503/76A patent/IT1070467B/it active
- 1976-10-15 FR FR7631181A patent/FR2328333A1/fr active Granted
- 1976-10-15 ES ES452425A patent/ES452425A1/es not_active Expired
- 1976-10-18 JP JP51123973A patent/JPS5250105A/ja active Pending
- 1976-10-18 DE DE2646924A patent/DE2646924C3/de not_active Expired
Non-Patent Citations (1)
Title |
---|
NEC RESEARCH & DEVELOPMENT, NO. 26, JUILLET 1972. TOKYO, TOKUJITAKEDA "LOUDSPEAKER CONFERENCE TELEPHONE", PAGES 79 A 83) * |
Also Published As
Publication number | Publication date |
---|---|
IT1070467B (it) | 1985-03-29 |
GB1506333A (en) | 1978-04-05 |
SE7611217L (sv) | 1977-04-18 |
ES452425A1 (es) | 1977-11-01 |
SE422516B (sv) | 1982-03-08 |
JPS5250105A (en) | 1977-04-21 |
DE2646924C3 (de) | 1981-08-13 |
DE2646924B2 (de) | 1980-10-30 |
US4008376A (en) | 1977-02-15 |
FR2328333B1 (fr) | 1979-02-23 |
DE2646924A1 (de) | 1977-04-28 |
BE847235A (fr) | 1977-01-31 |
CA1065072A (fr) | 1979-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |