IT1130170B - Impianto telefonico non richiedente centrale - Google Patents

Impianto telefonico non richiedente centrale

Info

Publication number
IT1130170B
IT1130170B IT19029/80A IT1902980A IT1130170B IT 1130170 B IT1130170 B IT 1130170B IT 19029/80 A IT19029/80 A IT 19029/80A IT 1902980 A IT1902980 A IT 1902980A IT 1130170 B IT1130170 B IT 1130170B
Authority
IT
Italy
Prior art keywords
applicant
central
telephone system
telephone
central applicant
Prior art date
Application number
IT19029/80A
Other languages
English (en)
Other versions
IT8019029A0 (it
Inventor
Alan Arthur Schneider
Govind Rao Gadwal
Original Assignee
Catalyst Research Corp
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.)
Filing date
Publication date
Application filed by Catalyst Research Corp filed Critical Catalyst Research Corp
Publication of IT8019029A0 publication Critical patent/IT8019029A0/it
Application granted granted Critical
Publication of IT1130170B publication Critical patent/IT1130170B/it

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
    • H04M9/027—Frequency division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
IT19029/80A 1979-01-08 1980-01-04 Impianto telefonico non richiedente centrale IT1130170B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/002,067 US4262171A (en) 1979-01-08 1979-01-08 Telephone system in which communication between stations is controlled by computers at each individual station

Publications (2)

Publication Number Publication Date
IT8019029A0 IT8019029A0 (it) 1980-01-04
IT1130170B true IT1130170B (it) 1986-06-11

Family

ID=21699116

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19029/80A IT1130170B (it) 1979-01-08 1980-01-04 Impianto telefonico non richiedente centrale

Country Status (8)

Country Link
US (1) US4262171A (it)
JP (1) JPS5593391A (it)
CA (1) CA1127329A (it)
DE (1) DE2939947A1 (it)
FR (1) FR2446038A1 (it)
GB (1) GB2039698A (it)
IT (1) IT1130170B (it)
SE (1) SE7907628L (it)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366565A (en) * 1980-07-29 1982-12-28 Herskowitz Gerald J Local area network optical fiber data communication
US4390981A (en) * 1980-12-29 1983-06-28 Syscom, Inc. Microprocessor controlled message handling system
GB2110056B (en) * 1981-10-28 1985-06-05 Marconi Avionics A communication system interconnecting radios and operators located at different positions
US4521881A (en) * 1981-11-02 1985-06-04 Wang Laboratories, Inc. Data communication system with increased effective bandwidth
ZA827851B (en) * 1981-11-04 1984-06-27 Racal Acoustics Ltd Communication set and method
GB2132449A (en) * 1982-12-09 1984-07-04 Standard Telephones Cables Ltd Decentralised PABX
US4574284A (en) * 1983-01-26 1986-03-04 Trw Inc. Communication bus interface unit
US4577060A (en) * 1983-05-18 1986-03-18 Bbl Industries, Inc. Paging network
US4642425A (en) * 1984-05-07 1987-02-10 Bbl Industries, Inc. Telephone paging system and method
JPS61502299A (ja) * 1984-05-19 1986-10-09 エ−エム・ケ−ブル・ティヴィ−・インダストリ−ズ，インコ−ポレイテッド タンパ−抵抗性の、拡大可能な通信システム
US4757496A (en) * 1984-07-09 1988-07-12 Bard Technologies Distributed telephone system
US4646296A (en) * 1984-07-09 1987-02-24 Bard Technologies Distributed telephone system
US4740967A (en) * 1985-01-31 1988-04-26 Georgalis Nicholas C Dispersed switching telecommunication system
AU6372886A (en) * 1985-08-28 1987-03-24 Soto, J.M. Distributed switching telecommunications system
GB8700458D0 (en) * 1987-01-09 1987-02-11 Unvala Ltd Communications systems
US4807225A (en) * 1987-02-02 1989-02-21 American Telephone And Telegraph Company, At&T Technologies, Inc. Telephone line carrier system
GB8721644D0 (en) * 1987-09-15 1987-10-21 Unilever Plc Silicas
US4996709A (en) * 1988-05-12 1991-02-26 Tandy Corporation Intercom telephone
DE4014132A1 (de) * 1990-05-02 1991-11-14 Fraunhofer Ges Forschung Sprachuebertragungssystem
ES2133425T3 (es) * 1993-02-16 1999-09-16 Siemens Schweiz Ag Dispositivo de circuito para activar aparatos a traves de una linea de transmision comun.
US5623537A (en) * 1994-12-29 1997-04-22 Lucent Technologies Inc. Telephone message center
US5898756A (en) * 1995-10-13 1999-04-27 Zoom Telephonics, Inc. Parallel-connected dialing signal transmission-inhibiting device for data transfer over a telephone link
US5883944A (en) * 1997-02-28 1999-03-16 Lucent Technologies Inc. "Plug and play" telephone system
US5991634A (en) * 1997-02-28 1999-11-23 Lucent Technologies Inc. "Plug and play" telephone system
US6480510B1 (en) 1998-07-28 2002-11-12 Serconet Ltd. Local area network of serial intelligent cells
AU5589400A (en) * 1999-05-25 2000-12-12 Transtek, Inc. Facility-wide communication system and method
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
IL135744A (en) 2000-04-18 2008-08-07 Mosaid Technologies Inc Telephone communication system over a single telephone line
IL144158A (en) 2001-07-05 2011-06-30 Mosaid Technologies Inc Socket for connecting an analog telephone to a digital communications network that carries digital voice signals
IL161190A0 (en) 2001-10-11 2004-08-31 Serconet Ltd Outlet with analog signal adapter, method for use thereof and a network using said outlet
US7177288B2 (en) * 2001-11-28 2007-02-13 Intel Corporation Simultaneous transmission and reception of signals in different frequency bands over a bus line
JP4158703B2 (ja) 2002-03-04 2008-10-01 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
IL154921A (en) * 2003-03-13 2011-02-28 Mosaid Technologies Inc A telephone system that includes many separate sources and accessories for it
IL159838A0 (en) 2004-01-13 2004-06-20 Yehuda Binder Information device
US7873058B2 (en) 2004-11-08 2011-01-18 Mosaid Technologies Incorporated Outlet with analog signal adapter, a method for use thereof and a network using said outlet
JP4327747B2 (ja) * 2005-02-21 2009-09-09 双葉電子工業株式会社 非蒸発ゲッターを備えた電子デバイス及びその電子デバイスの製造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219536B (de) * 1963-05-29 1966-06-23 Standard Elektrik Lorenz Ag Reihenanlage mit tonfrequenter Tastwahl
US3428899A (en) * 1964-12-28 1969-02-18 Nippon Electric Co Selective communication system wherein fach information pulse is address coded for transmission on a selected idle carrier frequency
GB1178693A (en) * 1966-04-26 1970-01-21 Gen Electric & English Electri Improvements in or relating to Carrier Telephony Equipment
GB1178694A (en) * 1966-06-13 1970-01-21 Gen Electric & English Electri Improvements in or relating to a Carrier-Telephony System
NL6617461A (it) * 1966-12-13 1968-06-14
US3809815A (en) * 1972-05-04 1974-05-07 Litton Systems Inc Communication system utilizing frequency division multiplexing to link a plurality of stations each containing a switchable synthesizer
US4020289A (en) * 1972-05-15 1977-04-26 Teleplex, Inc. Random access, multiple station communication system
CA998484A (en) * 1973-06-26 1976-10-12 Michael C.J. Cowpland Audio frequency signalling systems for telephone systems
US3891804A (en) * 1973-09-12 1975-06-24 Bell Telephone Labor Inc Asynchronous data transmission arrangement
US3864521A (en) * 1973-10-25 1975-02-04 Rockwell International Corp Frequency division multiplex telephone system
FR2275944A1 (fr) * 1974-06-21 1976-01-16 Suchard Jean Systeme de transmission de messages entre plusieurs stations
US4049914A (en) * 1976-08-30 1977-09-20 Rockwell International Corporation Frequency division multiplex voice communication apparatus with hierarchy of stations
US4107471A (en) * 1977-03-22 1978-08-15 International Telephone & Telegraph Corp. Frequency division multiplex communications system
US4155040A (en) * 1977-07-27 1979-05-15 Rockwell International Corporation Frequency programmable RF communications

Also Published As

Publication number Publication date
JPS5593391A (en) 1980-07-15
GB2039698A (en) 1980-08-13
SE7907628L (sv) 1980-07-09
DE2939947A1 (de) 1980-07-17
CA1127329A (en) 1982-07-06
FR2446038A1 (fr) 1980-08-01
IT8019029A0 (it) 1980-01-04
US4262171A (en) 1981-04-14

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