NL7506989A - Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands - Google Patents

Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands

Info

Publication number
NL7506989A
NL7506989A NL7506989A NL7506989A NL7506989A NL 7506989 A NL7506989 A NL 7506989A NL 7506989 A NL7506989 A NL 7506989A NL 7506989 A NL7506989 A NL 7506989A NL 7506989 A NL7506989 A NL 7506989A
Authority
NL
Netherlands
Prior art keywords
bands
signals
frequency
carrier wave
transmission system
Prior art date
Application number
NL7506989A
Other languages
Dutch (nl)
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Priority to NL7506989A priority Critical patent/NL7506989A/en
Priority to AU14595/76A priority patent/AU500050B2/en
Priority to BE2055087A priority patent/BE842523A/en
Priority to BR7603680A priority patent/BR7603680A/en
Priority to ES448800A priority patent/ES448800A1/en
Priority to SE7606616A priority patent/SE419019B/en
Publication of NL7506989A publication Critical patent/NL7506989A/en

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
    • H04J1/045—Filters applied to frequency transposition

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)

Abstract

761202 DW7651 000pp AB - BE-842523 The multiplex carrier wave transmission system each has a transmission and a receiving station, where the receiving station contains a number of sources each with one of three groups of signals. The transmitting station also contains a frequency converting and multiplexing circuit used to convert the first and second frequency bands of the first and second groups of signals and to multiplex them in the multiplex third and fourth frequency bands which are outside the thrid frequency bands of the converted first signals. The converted and multiplexed signals are combined with the third signal which has a frequency outside of the third frequency bands of the first signal, but inside the fourth frequency band of the second signals. The system incorporates filters (LPF2, 6) which suppress frequencies in the lower ranges of the frequency converters and multiplexers.
NL7506989A 1975-06-12 1975-06-12 Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands NL7506989A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL7506989A NL7506989A (en) 1975-06-12 1975-06-12 Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands
AU14595/76A AU500050B2 (en) 1975-06-12 1976-06-03 Multiplex carrier frequency transmission system
BE2055087A BE842523A (en) 1975-06-12 1976-06-03 COMMUNICATION SYSTEM AND PULSE POWER CONVERSION DEVICE FOR THIS
BR7603680A BR7603680A (en) 1975-06-12 1976-06-09 MULTIPLE CARRIER FREQUENCY TRANSMISSION SYSTEM
ES448800A ES448800A1 (en) 1975-06-12 1976-06-11 A system of multiplex transmission by frequency carriers. (Machine-translation by Google Translate, not legally binding)
SE7606616A SE419019B (en) 1975-06-12 1976-06-11 MULTIPLEXBERVAGFREKVENSTRANSMISSIONSSYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7506989A NL7506989A (en) 1975-06-12 1975-06-12 Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands

Publications (1)

Publication Number Publication Date
NL7506989A true NL7506989A (en) 1976-12-14

Family

ID=19823942

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7506989A NL7506989A (en) 1975-06-12 1975-06-12 Multiplex carrier wave transmission system - has three signal groups and filter suppressing lower ends of converter and multiplexer bands

Country Status (6)

Country Link
AU (1) AU500050B2 (en)
BE (1) BE842523A (en)
BR (1) BR7603680A (en)
ES (1) ES448800A1 (en)
NL (1) NL7506989A (en)
SE (1) SE419019B (en)

Also Published As

Publication number Publication date
BR7603680A (en) 1977-02-01
ES448800A1 (en) 1977-08-01
BE842523A (en) 1976-12-03
AU1459576A (en) 1977-12-08
SE419019B (en) 1981-07-06
AU500050B2 (en) 1979-05-10
SE7606616L (en) 1976-12-13

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Legal Events

Date Code Title Description
BV The patent application has lapsed