GB291110A - Process for simultaneous low frequency and carrier frequency telephony - Google Patents

Process for simultaneous low frequency and carrier frequency telephony

Info

Publication number
GB291110A
GB291110A GB15421/28A GB1542128A GB291110A GB 291110 A GB291110 A GB 291110A GB 15421/28 A GB15421/28 A GB 15421/28A GB 1542128 A GB1542128 A GB 1542128A GB 291110 A GB291110 A GB 291110A
Authority
GB
United Kingdom
Prior art keywords
frequency
cycles
lying
band
known means
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
GB15421/28A
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB291110A publication Critical patent/GB291110A/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
    • H04J1/04—Frequency-transposition arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/26—Improving frequency characteristic by the use of loading coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Near-Field Transmission Systems (AREA)
GB15421/28A 1927-05-27 1928-05-25 Process for simultaneous low frequency and carrier frequency telephony Expired GB291110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE291110X 1927-05-27

Publications (1)

Publication Number Publication Date
GB291110A true GB291110A (en) 1928-11-22

Family

ID=6066017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15421/28A Expired GB291110A (en) 1927-05-27 1928-05-25 Process for simultaneous low frequency and carrier frequency telephony

Country Status (2)

Country Link
GB (1) GB291110A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL34382C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
NL34382C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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