ATA303978A - Faksimile-uebertragungsanordnung zur verbesserung der bildqualitaet - Google Patents

Faksimile-uebertragungsanordnung zur verbesserung der bildqualitaet

Info

Publication number
ATA303978A
ATA303978A AT783039A AT303978A ATA303978A AT A303978 A ATA303978 A AT A303978A AT 783039 A AT783039 A AT 783039A AT 303978 A AT303978 A AT 303978A AT A303978 A ATA303978 A AT A303978A
Authority
AT
Austria
Prior art keywords
image quality
facsimile transmission
transmission arrangement
improving image
improving
Prior art date
Application number
AT783039A
Other languages
English (en)
Other versions
AT372561B (de
Inventor
Juergen Muenchow
Ruediger Sommer
Original Assignee
Hell Rudolf Dr Ing Gmbh
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 Hell Rudolf Dr Ing Gmbh filed Critical Hell Rudolf Dr Ing Gmbh
Publication of ATA303978A publication Critical patent/ATA303978A/de
Application granted granted Critical
Publication of AT372561B publication Critical patent/AT372561B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Solid State Image Pick-Up Elements (AREA)
AT0303978A 1977-05-05 1978-04-27 Faksimile-uebertragungsanordnung zur verbesserung der bildqualitaet AT372561B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2720079A DE2720079C3 (de) 1977-05-05 1977-05-05 Verfahren zur Verbesserung der Bildqualität bei der Faksimile-Übertragung

Publications (2)

Publication Number Publication Date
ATA303978A true ATA303978A (de) 1983-02-15
AT372561B AT372561B (de) 1983-10-25

Family

ID=6008068

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0303978A AT372561B (de) 1977-05-05 1978-04-27 Faksimile-uebertragungsanordnung zur verbesserung der bildqualitaet

Country Status (14)

Country Link
AT (1) AT372561B (de)
AU (1) AU518941B2 (de)
BE (1) BE866727A (de)
CH (1) CH627317A5 (de)
DE (1) DE2720079C3 (de)
DK (1) DK191378A (de)
FI (1) FI781369A (de)
FR (1) FR2390056A1 (de)
GB (1) GB1604106A (de)
IT (1) IT1095722B (de)
NL (1) NL7804772A (de)
NO (1) NO781338L (de)
SE (1) SE7804769L (de)
YU (1) YU101778A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826755A1 (de) * 1978-06-19 1979-12-20 Hell Rudolf Dr Ing Gmbh Abtasteinrichtung
US4589034A (en) * 1980-12-05 1986-05-13 Canon Kabushiki Kaisha Image processing apparatus
DE3441152A1 (de) * 1984-11-10 1986-05-28 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Verfahren zur magnetischen aufzeichnung und wiedergabe von telekommunikations-signalen, insbesondere von videotext- und/oder kabeltext-signalen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189685A (en) * 1961-04-21 1965-06-15 Philco Corp Two-level quantization system
DE1268657B (de) * 1965-07-14 1968-05-22 Hell Rudolf Dr Ing Fa Verfahren zur Steigerung der Schaerfe bei der Aufzeichnung der Reproduktionen lichtelektrisch abgetasteter Bildvorlagen
US3538246A (en) * 1968-05-22 1970-11-03 Southern Pacific Transport Co Bandwidth reduction technique for analog signals
US3495032A (en) * 1968-10-07 1970-02-10 Graphic Transmission Systems I Bandwidth reduction system
US3761610A (en) * 1971-02-16 1973-09-25 Graphics Sciences Inc High speed fascimile systems
DE2114149C3 (de) * 1971-03-24 1973-09-20 Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt Amphtudendiskriminator fur eine Schaltungsanordnung zur Erzeugung eines Korrektursignals zur Flankenverstelle rung von Impulsen
US3795765A (en) * 1971-12-29 1974-03-05 Xerox Corp Alternate analog encoding method and apparatus

Also Published As

Publication number Publication date
AU518941B2 (en) 1981-10-29
FI781369A (fi) 1978-11-06
YU101778A (en) 1982-08-31
IT7822932A0 (it) 1978-05-03
AT372561B (de) 1983-10-25
NL7804772A (nl) 1978-11-07
DK191378A (da) 1978-11-06
IT1095722B (it) 1985-08-17
BE866727A (fr) 1978-09-01
DE2720079B2 (de) 1981-01-22
CH627317A5 (en) 1981-12-31
SE7804769L (sv) 1978-11-06
DE2720079C3 (de) 1981-11-05
FR2390056A1 (de) 1978-12-01
NO781338L (no) 1978-11-07
DE2720079A1 (de) 1978-11-09
AU3577078A (en) 1979-11-08
GB1604106A (en) 1981-12-02

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee