FR1208549A - Système pour transmettre des signaux à bande plus large que celle des canaux de transmission - Google Patents

Système pour transmettre des signaux à bande plus large que celle des canaux de transmission

Info

Publication number
FR1208549A
FR1208549A FR1208549DA FR1208549A FR 1208549 A FR1208549 A FR 1208549A FR 1208549D A FR1208549D A FR 1208549DA FR 1208549 A FR1208549 A FR 1208549A
Authority
FR
France
Prior art keywords
transmitting signals
transmission channels
wider band
wider
band
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
Other languages
English (en)
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1208549A publication Critical patent/FR1208549A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/66—Nitrates, with or without other cations besides aluminium
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/10—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/917—Television signal processing therefor for bandwidth reduction
    • H04N5/919—Television signal processing therefor for bandwidth reduction by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
    • H04N7/125—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Television Signal Processing For Recording (AREA)
  • Dc Digital Transmission (AREA)
FR1208549D 1957-06-21 1958-06-20 Système pour transmettre des signaux à bande plus large que celle des canaux de transmission Expired FR1208549A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL894713X 1957-06-21

Publications (1)

Publication Number Publication Date
FR1208549A true FR1208549A (fr) 1960-02-24

Family

ID=19856070

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1208549D Expired FR1208549A (fr) 1957-06-21 1958-06-20 Système pour transmettre des signaux à bande plus large que celle des canaux de transmission

Country Status (3)

Country Link
DE (1) DE1069672B (de)
FR (1) FR1208549A (de)
GB (1) GB894713A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562491A (en) * 1982-03-26 1985-12-31 Mitsubishi Denki Kabushiki Kaisha Multichannel digital magnetic recording apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975764A (en) * 1973-10-12 1976-08-17 Matsushita Electric Industrial Co., Ltd. Television signal recording and reproducing system
US4388656A (en) * 1980-10-03 1983-06-14 Eastman Kodak Company Multitrack recording with minimal intermodulation
GB8703554D0 (en) * 1987-02-16 1987-03-25 British Broadcasting Corp Signal transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562491A (en) * 1982-03-26 1985-12-31 Mitsubishi Denki Kabushiki Kaisha Multichannel digital magnetic recording apparatus

Also Published As

Publication number Publication date
GB894713A (en) 1962-04-26
DE1069672B (de) 1959-11-26

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