GB2173070B
(en)
*
|
1985-03-28 |
1988-09-21 |
Stc Plc |
Digital telecommunication system
|
US5109406A
(en)
*
|
1985-09-30 |
1992-04-28 |
Kabushiki Kaisha Toshiba |
Call control method and apparatus for a switching system
|
US4793813A
(en)
*
|
1985-10-15 |
1988-12-27 |
The Board Of Trustees Of The University Of Illinois |
Computer-based education system
|
US4769833A
(en)
*
|
1986-03-31 |
1988-09-06 |
American Telephone And Telegraph Company |
Wideband switching system
|
CA1318381C
(en)
*
|
1988-04-15 |
1993-05-25 |
Jun'ichi Ohki |
Dual-mode teleconferencing system
|
DE3902746A1
(de)
*
|
1989-01-31 |
1990-08-09 |
Standard Elektrik Lorenz Ag |
Optisches breitband-nachrichtenuebertragungssystem, insbesondere fuer den teilnehmeranschlussbereich
|
US5042062A
(en)
|
1989-10-23 |
1991-08-20 |
At&T Bell Laboratories |
Method and apparatus for providing real-time switching of high bandwidth transmission channels
|
US5790174A
(en)
*
|
1991-09-27 |
1998-08-04 |
Bell Atlantic Network Services, Inc. |
PSTN architecture for video-on-demand services
|
US5247347A
(en)
*
|
1991-09-27 |
1993-09-21 |
Bell Atlantic Network Services, Inc. |
Pstn architecture for video-on-demand services
|
US5528281A
(en)
*
|
1991-09-27 |
1996-06-18 |
Bell Atlantic Network Services |
Method and system for accessing multimedia data over public switched telephone network
|
US5343240A
(en)
*
|
1991-11-04 |
1994-08-30 |
At&T Bell Laboratories |
Bidirectional video telephony using shared channels on coaxial cable networks
|
AU4543593A
(en)
*
|
1992-07-08 |
1994-01-31 |
Bell Atlantic Network Services, Inc. |
Media server for supplying video and multi-media data over the public telephone switched network
|
US5278889A
(en)
*
|
1992-07-29 |
1994-01-11 |
At&T Bell Laboratories |
Video telephony dialing
|
US5329308A
(en)
*
|
1992-07-29 |
1994-07-12 |
At&T Bell Laboratories |
Bidirectional video telephony between cable television and switched telephone systems
|
US5329572A
(en)
*
|
1992-09-24 |
1994-07-12 |
At&T Bell Laboratories |
Dial-up switching and transmission of broadband communication channels through a local exchange
|
RO111887B1
(ro)
*
|
1993-05-28 |
1997-02-28 |
Us West Technologies Inc |
Metoda si retea pentru separarea serviciilor telefonice de serviciile speciale
|
US6862349B1
(en)
*
|
1993-05-28 |
2005-03-01 |
Mediaone Group, Inc. |
Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network
|
US5615246A
(en)
*
|
1993-05-28 |
1997-03-25 |
Us West Technologies, Inc. |
Method and apparatus for spurious signal detection and disconnection in a hybrid fiber/coax network architecture
|
GB9400813D0
(en)
*
|
1994-01-17 |
1994-03-16 |
Plessey Telecomm |
Video signal transmission
|
US5534912A
(en)
*
|
1994-04-26 |
1996-07-09 |
Bell Atlantic Network Services, Inc. |
Extended range video on demand distribution system
|
US5600707A
(en)
*
|
1994-08-31 |
1997-02-04 |
Lucent Technologies Inc. |
Wireless channel setup using low bandwidth network for selecting high bandwidth data bearer channel of another network system for data transmission
|
US5563938A
(en)
*
|
1995-04-07 |
1996-10-08 |
Teltone Corporation |
Subscriber telephone diverter switch
|
US5583927A
(en)
*
|
1995-05-01 |
1996-12-10 |
Bell Communications Research, Inc. |
Method and apparatus for integrating telephone and broadband networks
|
US5574779A
(en)
*
|
1995-05-01 |
1996-11-12 |
Bell Communications Research, Inc. |
Method and apparatus for provisioning network services
|
US5712903A
(en)
*
|
1995-08-21 |
1998-01-27 |
Bell Atlantic Network Services, Inc. |
Split intelligent peripheral for broadband and narrowband services
|
US6370149B1
(en)
*
|
1998-07-20 |
2002-04-09 |
Ameritech Corporation |
Telecommunication system, method and subscriber unit for use therein
|
US7187686B1
(en)
|
1996-11-01 |
2007-03-06 |
Sbc Properties, B.P. |
Telecommunication system, method and subscriber unit for use therein
|
US6346964B1
(en)
*
|
1996-12-31 |
2002-02-12 |
Video Networkcommunications, Inc. |
Interoffice broadband communication system using twisted pair telephone wires
|
GB9714563D0
(en)
*
|
1997-07-10 |
1997-09-17 |
Intellprop Ltd |
Videotelephoney
|
US5949763A
(en)
*
|
1997-07-17 |
1999-09-07 |
Ameritech Corporation |
Method and apparatus for providing broadband access conferencing services
|
US6141356A
(en)
|
1997-11-10 |
2000-10-31 |
Ameritech Corporation |
System and method for distributing voice and data information over wireless and wireline networks
|
US6182144B1
(en)
*
|
1997-12-12 |
2001-01-30 |
Intel Corporation |
Means and method for switching between a narrow band communication and a wide band communication to establish a continuous connection with mobile computers
|
US6518994B1
(en)
*
|
1998-01-28 |
2003-02-11 |
Ncr Corporation |
Video call distribution
|
US6430177B1
(en)
|
1998-06-09 |
2002-08-06 |
Unisys Corporation |
Universal messaging system providing integrated voice, data and fax messaging services to pc/web-based clients, including a content manager for receiving information from content providers and formatting the same into multimedia containers for distribution to web-based clients
|
US6148329A
(en)
*
|
1998-07-20 |
2000-11-14 |
Unisys Corporation |
Method and system for maintaining the format of messages in a messaging system database
|
US6285671B1
(en)
*
|
1999-04-22 |
2001-09-04 |
Ameritech Corporation |
Method and system for providing facsimile service over a digital subscriber line
|
US6335936B1
(en)
|
1999-04-22 |
2002-01-01 |
Ameritech Corporation |
Wide area communication networking
|
EP1134932B1
(en)
*
|
2000-03-17 |
2006-02-15 |
Alcatel |
System for receiving multicast data
|
US8451311B2
(en)
*
|
2004-09-03 |
2013-05-28 |
Telecom Italia S.P.A. |
Method and system for video telephone communications set up, related equipment and computer program product
|
CN101124783B
(zh)
*
|
2004-12-15 |
2012-10-03 |
爱移通全球有限公司 |
发起缩减了建立时间的会话的建立过程的方法
|
US8488591B2
(en)
*
|
2004-12-23 |
2013-07-16 |
Telecom Italia S.P.A. |
Method and system for video telephone communications set up, related equipment and computer program product
|