JPS53132203A - Carrier telegraphy system - Google Patents

Carrier telegraphy system

Info

Publication number
JPS53132203A
JPS53132203A JP4707977A JP4707977A JPS53132203A JP S53132203 A JPS53132203 A JP S53132203A JP 4707977 A JP4707977 A JP 4707977A JP 4707977 A JP4707977 A JP 4707977A JP S53132203 A JPS53132203 A JP S53132203A
Authority
JP
Japan
Prior art keywords
unit
signals
telegraphy system
carrier
carrier telegraphy
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.)
Pending
Application number
JP4707977A
Other languages
Japanese (ja)
Inventor
Seiya Shida
Masao Sato
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4707977A priority Critical patent/JPS53132203A/en
Priority to US05/843,917 priority patent/US4145575A/en
Publication of JPS53132203A publication Critical patent/JPS53132203A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE:To obtain the frequency division multiplex signal rejecting unnecessary side band and to make small the unit in size and to economize the unit, by unifying output signals from each modulator corresponding to input signals and passing through the signals into comb type filters.
JP4707977A 1976-10-21 1977-04-22 Carrier telegraphy system Pending JPS53132203A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4707977A JPS53132203A (en) 1977-04-22 1977-04-22 Carrier telegraphy system
US05/843,917 US4145575A (en) 1976-10-21 1977-10-20 Frequency-division multiplexed signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4707977A JPS53132203A (en) 1977-04-22 1977-04-22 Carrier telegraphy system

Publications (1)

Publication Number Publication Date
JPS53132203A true JPS53132203A (en) 1978-11-17

Family

ID=12765155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4707977A Pending JPS53132203A (en) 1976-10-21 1977-04-22 Carrier telegraphy system

Country Status (1)

Country Link
JP (1) JPS53132203A (en)

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