GB587489A - Multiplex telephone system - Google Patents

Multiplex telephone system

Info

Publication number
GB587489A
GB587489A GB18684/44A GB1868444A GB587489A GB 587489 A GB587489 A GB 587489A GB 18684/44 A GB18684/44 A GB 18684/44A GB 1868444 A GB1868444 A GB 1868444A GB 587489 A GB587489 A GB 587489A
Authority
GB
United Kingdom
Prior art keywords
line
pass filter
pass
signals
station
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
GB18684/44A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB587489A publication Critical patent/GB587489A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1676—Time-division multiplex with pulse-position, pulse-interval, or pulse-width modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/17—Ground-based stations employing pulse modulation, e.g. pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB18684/44A 1943-10-19 1944-09-29 Multiplex telephone system Expired GB587489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US506803A US2395467A (en) 1943-10-19 1943-10-19 Multiplex telephone system

Publications (1)

Publication Number Publication Date
GB587489A true GB587489A (en) 1947-04-28

Family

ID=24016071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18684/44A Expired GB587489A (en) 1943-10-19 1944-09-29 Multiplex telephone system

Country Status (4)

Country Link
US (1) US2395467A (pt)
BE (1) BE462299A (pt)
FR (1) FR941112A (pt)
GB (1) GB587489A (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2736007A (en) * 1956-02-21 Teledata system
US2616977A (en) * 1952-11-04 Sheetsxsheet i
US2406803A (en) * 1941-12-16 1946-09-03 Standard Telephones Cables Ltd High-frequency electrical communication system
FR957921A (pt) * 1942-03-12 1950-02-28
US2474244A (en) * 1944-05-19 1949-06-28 Standard Telephones Cables Ltd Amplitude modulated time modulated pulse system
US2472705A (en) * 1944-07-17 1949-06-07 John H Homrighous Time division carrier multiplex telephone system
BE479412A (pt) * 1944-08-07
FR960543A (pt) * 1945-01-03 1950-04-20
BE477651A (pt) * 1945-03-01
US3924074A (en) * 1945-05-19 1975-12-02 Bell Telephone Labor Inc Pulse position modulation key signaling system
US2520534A (en) * 1945-08-18 1950-08-29 Bell Telephone Labor Inc Multiplex pulse repeater
GB604817A (en) * 1945-12-28 1948-07-09 Standard Telephones Cables Ltd Improvements relating to multi-channel pulse communication systems
BE476632A (pt) * 1945-12-31
US3934078A (en) * 1946-05-01 1976-01-20 Bell Telephone Laboratories, Incorporated Key generating system
US4396801A (en) * 1946-06-11 1983-08-02 Bell Telephone Laboratories, Incorporated Multiplex communication system employing pulse code modulation
BE479963A (pt) * 1946-06-22
US2523703A (en) * 1946-06-25 1950-09-26 Research Corp System for transmitting signal modulated pulses
US2497411A (en) * 1946-07-25 1950-02-14 Stromberg Carlson Co Pulse transmission system
US2721899A (en) * 1946-07-25 1955-10-25 Gen Dynamics Corp Pulse communication system
BE478251A (pt) * 1946-07-27
BE477244A (pt) * 1946-08-24
US2468703A (en) * 1946-09-26 1949-04-26 Serdex Inc Chronometric electronic radiosonde system
GB652357A (en) * 1946-11-21 1951-04-25 Gen Electric Co Ltd Improvements in and relating to multi-channel signalling systems
US2557581A (en) * 1947-02-15 1951-06-19 Rock Ola Mfg Corp Remote control system
US2610295A (en) * 1947-10-30 1952-09-09 Bell Telephone Labor Inc Pulse code modulation communication system
US2597038A (en) * 1947-11-19 1952-05-20 Int Standard Electric Corp Two-way electric pulse communication system
GB680702A (en) * 1947-12-07 1952-10-08 Standard Telephones Cables Ltd Mixed modulation in pulsed intercommunication systems
US2587734A (en) * 1947-12-22 1952-03-04 Meguer V Kalfaian Modulator tube and circuits
US2658189A (en) * 1948-01-09 1953-11-03 Bell Telephone Labor Inc Signaling system based on orthogonal functions
US2541932A (en) * 1948-05-19 1951-02-13 Bell Telephone Labor Inc Multiplex speech interpolation system
US2750566A (en) * 1948-06-04 1956-06-12 Raytheon Mfg Co Telemetering transmission system
US2655652A (en) * 1948-06-28 1953-10-13 John H Homrighous Multiplex time division telephone systems
US2680153A (en) * 1949-01-14 1954-06-01 Philco Corp Multichannel communication system
NL86409C (pt) * 1949-10-26

Also Published As

Publication number Publication date
US2395467A (en) 1946-02-26
BE462299A (pt)
FR941112A (fr) 1949-01-03

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