GB517036A - Multiplex multi-line carrier system - Google Patents

Multiplex multi-line carrier system

Info

Publication number
GB517036A
GB517036A GB21076/38A GB2107638A GB517036A GB 517036 A GB517036 A GB 517036A GB 21076/38 A GB21076/38 A GB 21076/38A GB 2107638 A GB2107638 A GB 2107638A GB 517036 A GB517036 A GB 517036A
Authority
GB
United Kingdom
Prior art keywords
modulators
group
channel
frequencies
frequency
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
GB21076/38A
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 GB517036A publication Critical patent/GB517036A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/12—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB21076/38A 1937-08-18 1938-07-15 Multiplex multi-line carrier system Expired GB517036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159667A US2142316A (en) 1937-08-18 1937-08-18 Multiplex multiline carrier system

Publications (1)

Publication Number Publication Date
GB517036A true GB517036A (en) 1940-01-18

Family

ID=22573475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21076/38A Expired GB517036A (en) 1937-08-18 1938-07-15 Multiplex multi-line carrier system

Country Status (4)

Country Link
US (1) US2142316A (enrdf_load_stackoverflow)
FR (1) FR842226A (enrdf_load_stackoverflow)
GB (1) GB517036A (enrdf_load_stackoverflow)
NL (1) NL54983C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528090A (en) * 1943-09-14 1950-10-31 Punch Engineering Pty Ltd Means for changing the transmission carrier frequencies in multichannel signaling and communication systems
US4845756A (en) * 1986-09-09 1989-07-04 Siemens Aktiengesellschaft Apparatus for through-connecting audio signals

Also Published As

Publication number Publication date
FR842226A (fr) 1939-06-08
US2142316A (en) 1939-01-03
NL54983C (enrdf_load_stackoverflow)

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