CA1024279A - Electronic time-division-multiplexed pabx telephone system - Google Patents
Electronic time-division-multiplexed pabx telephone systemInfo
- Publication number
- CA1024279A CA1024279A CA180,009A CA180009A CA1024279A CA 1024279 A CA1024279 A CA 1024279A CA 180009 A CA180009 A CA 180009A CA 1024279 A CA1024279 A CA 1024279A
- Authority
- CA
- Canada
- Prior art keywords
- multiplexed
- division
- telephone system
- electronic time
- pabx 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/025—Time division multiplex systems, e.g. loop systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Time-Division Multiplex Systems (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29632272A | 1972-10-10 | 1972-10-10 | |
US05/435,318 US3937892A (en) | 1972-10-10 | 1974-01-21 | Electronic time-division-multiplexed pabx telephone system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1024279A true CA1024279A (en) | 1978-01-10 |
Family
ID=26969590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA180,009A Expired CA1024279A (en) | 1972-10-10 | 1973-08-30 | Electronic time-division-multiplexed pabx telephone system |
Country Status (6)
Country | Link |
---|---|
US (1) | US3937892A (xx) |
JP (1) | JPS4974410A (xx) |
CA (1) | CA1024279A (xx) |
DE (1) | DE2351104C3 (xx) |
FR (1) | FR2202419B1 (xx) |
GB (1) | GB1449063A (xx) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1538996A (en) * | 1976-03-10 | 1979-01-24 | Chestel Inc | Communication switching system |
GB1575002A (en) * | 1976-03-11 | 1980-09-17 | Post Office | Data transmission system |
JPS52132717A (en) * | 1976-04-30 | 1977-11-07 | Terasaki Denki Sangyo Kk | Time division multiplex transmission system |
US4140877A (en) * | 1977-04-19 | 1979-02-20 | Tie/Communications, Inc. | Muliple highway time division multiplexed PABX communication system |
DE2837214A1 (de) * | 1978-08-25 | 1980-03-06 | Siemens Ag | Anordnung zum uebertragen von digitalen datensignalen |
US4393491A (en) * | 1980-11-05 | 1983-07-12 | Anaconda-Ericsson | Automatic self-test system for a digital multiplexed telecommunication system |
GB2147770B (en) * | 1983-10-08 | 1987-01-14 | Standard Telephones Cables Ltd | Data transmission system |
US4975903A (en) * | 1984-05-07 | 1990-12-04 | David Systems, Inc. | Digital timeslot and signaling bus in a digital PBX switch |
US4595596A (en) * | 1984-05-18 | 1986-06-17 | Nabisco Brands, Inc. | Crackers having stabilized sunflower seeds |
HU193088B (en) * | 1985-03-21 | 1987-08-28 | Bhg Hiradastech Vallalat | Equipment for time shared digital interconnecting sources of information, in particular to the central exchanges |
DE3603013A1 (de) * | 1986-01-31 | 1987-08-06 | Nixdorf Computer Ag | Verfahren zur integration eines oder mehrerer zusatzfunktionsmodule in fernmeldeanlagen sowie zugriffsschaltung zur durchfuehrung des verfahrens |
US6295449B1 (en) | 1992-01-27 | 2001-09-25 | @Track Communications, Inc. | Data messaging in a communications network using a feature request |
US5539810A (en) * | 1992-01-27 | 1996-07-23 | Highwaymaster Communications, Inc. | Data messaging in a communications network |
US5889474A (en) * | 1992-05-18 | 1999-03-30 | Aeris Communications, Inc. | Method and apparatus for transmitting subject status information over a wireless communications network |
US6144859A (en) * | 1993-08-27 | 2000-11-07 | Aeris Communications, Inc. | Wireless cellular communicator system and apparatus |
US5521965A (en) * | 1992-08-14 | 1996-05-28 | Bell Atlantic Network Services, Inc. | Apparatus and method for handling busy calls in telephone network |
US5594740A (en) | 1993-08-27 | 1997-01-14 | Axion Logistics Corporation | Wireless communications application specific enabling method and apparatus |
US5812551A (en) * | 1995-07-17 | 1998-09-22 | Fujitsu Limited | ATM exchange with band camp-on registration function |
US5999808A (en) * | 1995-12-12 | 1999-12-07 | Aeris Communications, Inc. | Wireless gaming method |
US5845203A (en) * | 1996-01-25 | 1998-12-01 | Aertis Cormmunications | Remote access application messaging wireless method |
US7523082B2 (en) * | 2006-05-08 | 2009-04-21 | Aspect Software Inc | Escalating online expert help |
JP5367458B2 (ja) * | 2009-05-28 | 2013-12-11 | アズビル株式会社 | モジュール間信号伝達方式 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3457373A (en) * | 1965-09-22 | 1969-07-22 | Posterijen Telegrafie En Telef | Automatic channel switching device for multi-channel binary code telecommunication system |
GB1187488A (en) * | 1967-10-25 | 1970-04-08 | Int Standard Electric Corp | Telecommunication System |
GB1184519A (en) * | 1968-06-21 | 1970-03-18 | Standard Telephones Cables Ltd | Subscriber Subset for PCM. |
DE1806251A1 (de) * | 1968-10-09 | 1970-07-02 | Telefunken Patent | Verfahren zur UEbertragung voneinander getrennter Informationen |
US3564145A (en) * | 1969-04-30 | 1971-02-16 | Ibm | Serial loop data transmission system fault locator |
US3646273A (en) * | 1969-09-29 | 1972-02-29 | Adaptive Tech | Multiplex communication system and method for modifying system behavior |
US3789148A (en) * | 1970-02-18 | 1974-01-29 | Nissan Motor | Multiplex transmission method |
US3731002A (en) * | 1970-10-08 | 1973-05-01 | Bell Telephone Labor Inc | Interconnected loop data block transmission system |
US3732374A (en) * | 1970-12-31 | 1973-05-08 | Ibm | Communication system and method |
US3718768A (en) * | 1971-08-09 | 1973-02-27 | Adaptive Tech | Voice or analog communication system employing adaptive encoding techniques |
US3781478A (en) * | 1972-07-07 | 1973-12-25 | Bell Telephone Labor Inc | Multiplex communication system |
-
1973
- 1973-08-30 CA CA180,009A patent/CA1024279A/en not_active Expired
- 1973-09-05 GB GB4178373A patent/GB1449063A/en not_active Expired
- 1973-10-09 FR FR7335944A patent/FR2202419B1/fr not_active Expired
- 1973-10-09 JP JP48112926A patent/JPS4974410A/ja active Pending
- 1973-10-09 DE DE2351104A patent/DE2351104C3/de not_active Expired
-
1974
- 1974-01-21 US US05/435,318 patent/US3937892A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3937892A (en) | 1976-02-10 |
FR2202419B1 (xx) | 1982-09-17 |
DE2351104A1 (de) | 1974-04-25 |
DE2351104C3 (de) | 1981-10-01 |
GB1449063A (en) | 1976-09-08 |
DE2351104B2 (de) | 1980-10-16 |
FR2202419A1 (xx) | 1974-05-03 |
JPS4974410A (xx) | 1974-07-18 |
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