DE1076171B
(de)
*
|
1955-10-15 |
1960-02-25 |
Deutsche Bundespost |
Schaltungsanordnung zur selbsttaetigen Umschaltung eines Fernmelde-UEbertragungssystems, insbesondere eines Wechselstromtelegraphie-Systems, von einem ersten UEbertragungsweg auf einen zweiten UEbertragungsweg und umgekehrt
|
NL238442A
(US07122603-20061017-C00250.png)
*
|
1958-04-22 |
|
|
|
NL259444A
(US07122603-20061017-C00250.png)
*
|
1959-12-30 |
|
|
|
NL259445A
(US07122603-20061017-C00250.png)
*
|
1959-12-30 |
|
|
|
US3111624A
(en)
*
|
1960-01-04 |
1963-11-19 |
Bell Telephone Labor Inc |
Automatic system for selectively substituting spare channels for failed working channels in a multichannel multilink communication system
|
US3060390A
(en)
*
|
1960-04-25 |
1962-10-23 |
Bell Telephone Labor Inc |
Remotely controlled selective switching system
|
US3223976A
(en)
*
|
1961-05-26 |
1965-12-14 |
Bell Telephone Labor Inc |
Data communication system
|
US3411088A
(en)
*
|
1965-02-09 |
1968-11-12 |
Bell Telephone Labor Inc |
Automatic input power level adjustment apparatus for amplifier of a broadband repeater
|
US3715503A
(en)
*
|
1971-02-16 |
1973-02-06 |
Stromberg Carlson Corp |
Automatic transfer arrangement for telephone system
|
JPS5412766B2
(US07122603-20061017-C00250.png)
*
|
1971-11-24 |
1979-05-25 |
|
|
US3742154A
(en)
*
|
1971-12-30 |
1973-06-26 |
Bell Telephone Labor Inc |
Continuous inband testing of trunks with automatic trunk substitution upon detecting a defective trunk
|
US3809818A
(en)
*
|
1972-06-05 |
1974-05-07 |
Bell Canada |
Means and method for telephone line disconnection in frequency division multiplexing
|
FR2188924A5
(US07122603-20061017-C00250.png)
*
|
1972-06-15 |
1974-01-18 |
Constr Telephoniques |
|
FR2192750A5
(US07122603-20061017-C00250.png)
*
|
1972-07-13 |
1974-02-08 |
Constr Telephoniques |
|
US3864533A
(en)
*
|
1973-06-01 |
1975-02-04 |
Vidar Corp |
Automatic line transfer system and method for a communications system
|
US3983340A
(en)
*
|
1975-01-27 |
1976-09-28 |
Lynch Communication Systems, Inc. |
Automatic span line switch
|
US4030069A
(en)
*
|
1975-01-30 |
1977-06-14 |
Trw Inc. |
Redundant message metering network
|
US3975600A
(en)
*
|
1975-06-06 |
1976-08-17 |
Marston Harvey J |
Telephone line splicing apparatus
|
US3991278A
(en)
*
|
1975-06-13 |
1976-11-09 |
Bell Telephone Laboratories, Incorporated |
Line protection switching system
|
US4245342A
(en)
*
|
1979-01-10 |
1981-01-13 |
Intech Laboratories, Inc. |
One-for-n modem control apparatus
|
FR2471088A1
(fr)
*
|
1979-12-07 |
1981-06-12 |
Inst Francais Du Petrole |
Dispositif de transmission de donnees entre des dispositifs d'acquisition de donnees et un dispositif d'enregistrement
|
US5193086A
(en)
*
|
1988-08-26 |
1993-03-09 |
Hitachi, Ltd. |
Network system having a line switching function
|
US6480510B1
(en)
|
1998-07-28 |
2002-11-12 |
Serconet Ltd. |
Local area network of serial intelligent cells
|
US6956826B1
(en)
|
1999-07-07 |
2005-10-18 |
Serconet Ltd. |
Local area network for distributing data communication, sensing and control signals
|
US6690677B1
(en)
*
|
1999-07-20 |
2004-02-10 |
Serconet Ltd. |
Network for telephony and data communication
|
US6549616B1
(en)
|
2000-03-20 |
2003-04-15 |
Serconet Ltd. |
Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
|
US20030206623A1
(en)
*
|
2002-05-06 |
2003-11-06 |
Deichstetter Eric A. |
Pair gain system
|
IL154234A
(en)
|
2003-01-30 |
2010-12-30 |
Mosaid Technologies Inc |
Method and system for providing dc power on local telephone lines
|
IL159838A0
(en)
|
2004-01-13 |
2004-06-20 |
Yehuda Binder |
Information device
|