CA1030675A - System for efficient connection of telephone subscribers to central office - Google Patents

System for efficient connection of telephone subscribers to central office

Info

Publication number
CA1030675A
CA1030675A CA176,269A CA176269A CA1030675A CA 1030675 A CA1030675 A CA 1030675A CA 176269 A CA176269 A CA 176269A CA 1030675 A CA1030675 A CA 1030675A
Authority
CA
Canada
Prior art keywords
central office
telephone subscribers
efficient connection
efficient
subscribers
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
Application number
CA176,269A
Other languages
French (fr)
Other versions
CA176269S (en
Inventor
Sidney Browne
Norris C. Hekimian
Joseph E. Murtha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CARRIER TELEPHONE Corp OF AMERICA
Original Assignee
CARRIER TELEPHONE Corp OF AMERICA
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 TELEPHONE Corp OF AMERICA filed Critical CARRIER TELEPHONE Corp OF AMERICA
Application granted granted Critical
Publication of CA1030675A publication Critical patent/CA1030675A/en
Expired legal-status Critical Current

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)
CA176,269A 1972-07-14 1973-07-12 System for efficient connection of telephone subscribers to central office Expired CA1030675A (en)

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
CA1030675A true CA1030675A (en) 1978-05-02

Family

ID=26955095

Family Applications (1)

Application Number Title Priority Date Filing Date
CA176,269A Expired CA1030675A (en) 1972-07-14 1973-07-12 System for efficient connection of telephone subscribers to central office

Country Status (11)

Country Link
US (2) US3804988A (en)
JP (1) JPS5415721B2 (en)
AT (1) ATA604273A (en)
BE (1) BE802278A (en)
CA (1) CA1030675A (en)
DE (1) DE2334650C3 (en)
FR (1) FR2193294B1 (en)
GB (1) GB1444258A (en)
IT (1) IT998241B (en)
NL (1) NL161946C (en)
SE (1) SE391096B (en)

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 (en) * 1976-08-26 1978-03-24 Thomson Csf BILATERAL TRANSMISSION SYSTEM BETWEEN A MAIN STATION AND SECONDARY STATIONS
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 (en) * 1983-11-09 1985-06-05 Hitachi Ltd Transmitter for audio signal
US5159613A (en) * 1990-04-02 1992-10-27 William Beaumont Hospital Side-band generator
FR2667750A1 (en) * 1990-10-05 1992-04-10 Philips Electro Grand Public CABLE NETWORK AND MODULATOR-DEMODULATOR DEVICE FOR SUCH A NETWORK.
US5247515A (en) * 1991-01-28 1993-09-21 Rockwell International Corporation Apparatus for extracting one from many multiplexed signals
DE4228407C2 (en) * 1992-08-26 1994-06-30 Ant Nachrichtentech Company management participants and method for establishing a connection between company management participants
SE519541C2 (en) * 1996-10-02 2003-03-11 Ericsson Telefon Ab L M Method and apparatus for transforming a real digital broadband bandpass signal into a set of digital baseband signals with I and Q components
US6546061B2 (en) 1996-10-02 2003-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Signal transformation method and apparatus
DE10154995A1 (en) * 2001-11-08 2003-06-05 Eads Deutschland Gmbh Mixer circuit with preamplifier

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 (en) * 1964-08-17 1967-12-21 Standard Elektrik Lorenz Ag Method for frequency stabilization of carriers by transmitting a control frequency in carrier frequency systems
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 (en) * 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
DE2334650B2 (en) 1979-10-11
US3804988A (en) 1974-04-16
NL7309656A (en) 1974-01-16
FR2193294A1 (en) 1974-02-15
GB1444258A (en) 1976-07-28
SE391096B (en) 1977-01-31
IT998241B (en) 1976-01-20
DE2334650A1 (en) 1974-02-14
JPS5415721B2 (en) 1979-06-16
NL161946C (en) 1980-03-17
DE2334650C3 (en) 1980-06-26
AU5781673A (en) 1975-01-09
FR2193294B1 (en) 1979-07-13
ATA604273A (en) 1979-10-15
NL161946B (en) 1979-10-15
BE802278A (en) 1973-11-05
US3806655A (en) 1974-04-23
JPS4960111A (en) 1974-06-11

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