IT998241B - Sistema per collegare efficiente mente gli abbonati telefonici con la centrale - Google Patents

Sistema per collegare efficiente mente gli abbonati telefonici con la centrale

Info

Publication number
IT998241B
IT998241B IT26632/73A IT2663273A IT998241B IT 998241 B IT998241 B IT 998241B IT 26632/73 A IT26632/73 A IT 26632/73A IT 2663273 A IT2663273 A IT 2663273A IT 998241 B IT998241 B IT 998241B
Authority
IT
Italy
Prior art keywords
mindly
control unit
telephone subscribers
connect telephone
connect
Prior art date
Application number
IT26632/73A
Other languages
English (en)
Original Assignee
Carrier Tel Corp America Inc
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 Carrier Tel Corp America Inc filed Critical Carrier Tel Corp America Inc
Application granted granted Critical
Publication of IT998241B publication Critical patent/IT998241B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/18—Frequency-division multiplex systems in which all the carriers are amplitude-modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/08—Arrangements for combining channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)
IT26632/73A 1972-07-14 1973-07-16 Sistema per collegare efficiente mente gli abbonati telefonici con la centrale IT998241B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00271738A US3806655A (en) 1972-07-14 1972-07-14 System carrier equipment employing phase shift method of ssb generation and reception
US00271737A US3804988A (en) 1972-07-14 1972-07-14 Carrier system for efficient connection of telephone subscribers to central office

Publications (1)

Publication Number Publication Date
IT998241B true IT998241B (it) 1976-01-20

Family

ID=26955095

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26632/73A IT998241B (it) 1972-07-14 1973-07-16 Sistema per collegare efficiente mente gli abbonati telefonici con la centrale

Country Status (11)

Country Link
US (2) US3806655A (it)
JP (1) JPS5415721B2 (it)
AT (1) ATA604273A (it)
BE (1) BE802278A (it)
CA (1) CA1030675A (it)
DE (1) DE2334650C3 (it)
FR (1) FR2193294B1 (it)
GB (1) GB1444258A (it)
IT (1) IT998241B (it)
NL (1) NL161946C (it)
SE (1) SE391096B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045624A (en) * 1976-04-02 1977-08-30 Carrier Telephone Corporation Of America, Inc. Continuous monitoring in carrier telephone systems
FR2363244A1 (fr) * 1976-08-26 1978-03-24 Thomson Csf Systeme de transmission bilaterale entre une station principale et des stations secondaires
US4049914A (en) * 1976-08-30 1977-09-20 Rockwell International Corporation Frequency division multiplex voice communication apparatus with hierarchy of stations
GB1540907A (en) * 1976-12-07 1979-02-21 Standard Telephones Cables Ltd System for obtaining data from a plurality of condition responsive optical devices
US4230910A (en) * 1978-08-11 1980-10-28 Tii Corporation Signalling and channel loop test circuits for station carrier telephone system
US4234950A (en) * 1979-04-25 1980-11-18 Sidney Browne Telephone station carrier system
JPS60101769A (ja) * 1983-11-09 1985-06-05 Hitachi Ltd 信号伝送装置
US5159613A (en) * 1990-04-02 1992-10-27 William Beaumont Hospital Side-band generator
FR2667750A1 (fr) * 1990-10-05 1992-04-10 Philips Electro Grand Public Reseau cable et dispositif modulateur-demodulateur pour un tel reseau.
US5247515A (en) * 1991-01-28 1993-09-21 Rockwell International Corporation Apparatus for extracting one from many multiplexed signals
DE4228407C2 (de) * 1992-08-26 1994-06-30 Ant Nachrichtentech Teilnehmer für eine Gesellschaftsleitung sowie Verfahren zum Aufbau einer Verbindung zwischen Teilnehmern einer Gesellschaftsleitung
SE519541C2 (sv) * 1996-10-02 2003-03-11 Ericsson Telefon Ab L M Förfarande och anordning för transformering av en reell digital bredbandig bandpassignal till en uppsättning digitala basbandssignaler med I- och Q-komponenter
US6546061B2 (en) 1996-10-02 2003-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Signal transformation method and apparatus
DE10154995A1 (de) * 2001-11-08 2003-06-05 Eads Deutschland Gmbh Mischerschaltung mit Vorverstärker

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721897A (en) * 1951-01-13 1955-10-25 Bell Telephone Labor Inc Carrier wave communication system
GB946249A (en) * 1960-12-02 1964-01-08 Ass Elect Ind Improvements relating to circuit arrangements for frequency translating a.c. signals
DE1256709B (de) * 1964-08-17 1967-12-21 Standard Elektrik Lorenz Ag Verfahren zur Frequenzstabilisierung der Traeger durch Mituebertragen einer Steuerfrequenz in Traegerfrequenzsystemen
US3475561A (en) * 1965-09-29 1969-10-28 Superior Continental Corp Telephone carrier system having selfcontained independently attachable line tap units
US3450842A (en) * 1965-10-22 1969-06-17 Nasa Doppler frequency spread correction device for multiplex transmissions
US3550131A (en) * 1967-12-27 1970-12-22 Bell Telephone Labor Inc Digitalized phase locked loop double carrier transmission system
FR1592098A (it) * 1968-03-15 1970-05-11
US3548106A (en) * 1969-07-24 1970-12-15 Anaconda Wire & Cable Co Rural subscriber telephone system

Also Published As

Publication number Publication date
BE802278A (fr) 1973-11-05
NL161946C (nl) 1980-03-17
AU5781673A (en) 1975-01-09
FR2193294A1 (it) 1974-02-15
SE391096B (sv) 1977-01-31
JPS5415721B2 (it) 1979-06-16
US3804988A (en) 1974-04-16
DE2334650B2 (de) 1979-10-11
DE2334650A1 (de) 1974-02-14
US3806655A (en) 1974-04-23
GB1444258A (en) 1976-07-28
NL161946B (nl) 1979-10-15
FR2193294B1 (it) 1979-07-13
JPS4960111A (it) 1974-06-11
NL7309656A (it) 1974-01-16
ATA604273A (de) 1979-10-15
DE2334650C3 (de) 1980-06-26
CA1030675A (en) 1978-05-02

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