AT372561B - FACSIMILE TRANSMISSION ARRANGEMENT FOR IMPROVING IMAGE QUALITY - Google Patents

FACSIMILE TRANSMISSION ARRANGEMENT FOR IMPROVING IMAGE QUALITY

Info

Publication number
AT372561B
AT372561B AT0303978A AT303978A AT372561B AT 372561 B AT372561 B AT 372561B AT 0303978 A AT0303978 A AT 0303978A AT 303978 A AT303978 A AT 303978A AT 372561 B AT372561 B AT 372561B
Authority
AT
Austria
Prior art keywords
image quality
facsimile transmission
transmission arrangement
improving image
improving
Prior art date
Application number
AT0303978A
Other languages
German (de)
Other versions
ATA303978A (en
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/en
Application granted granted Critical
Publication of AT372561B publication Critical patent/AT372561B/en

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 FACSIMILE TRANSMISSION ARRANGEMENT FOR IMPROVING IMAGE QUALITY AT372561B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2720079A DE2720079C3 (en) 1977-05-05 1977-05-05 Method for improving the image quality in facsimile transmission

Publications (2)

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

Family

ID=6008068

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0303978A AT372561B (en) 1977-05-05 1978-04-27 FACSIMILE TRANSMISSION ARRANGEMENT FOR IMPROVING IMAGE QUALITY

Country Status (14)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182970A1 (en) * 1984-11-10 1986-06-04 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Method for the magnetic recording and reproduction of telecommunication signals, particularly of teletext and/or cable text signals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826755A1 (en) * 1978-06-19 1979-12-20 Hell Rudolf Dr Ing Gmbh SAMPLE DEVICE
US4589034A (en) * 1980-12-05 1986-05-13 Canon Kabushiki Kaisha Image processing apparatus

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 (en) * 1965-07-14 1968-05-22 Hell Rudolf Dr Ing Fa Process for increasing the sharpness in the recording of reproductions of photoelectrically scanned original images
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 (en) * 1971-03-24 1973-09-20 Robert Bosch Fernsehanlagen Gmbh, 6100 Darmstadt Amphtude discriminator for a circuit arrangement for generating a correction signal for flank adjustment of pulses
US3795765A (en) * 1971-12-29 1974-03-05 Xerox Corp Alternate analog encoding method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182970A1 (en) * 1984-11-10 1986-06-04 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Method for the magnetic recording and reproduction of telecommunication signals, particularly of teletext and/or cable text signals

Also Published As

Publication number Publication date
DE2720079B2 (en) 1981-01-22
IT7822932A0 (en) 1978-05-03
SE7804769L (en) 1978-11-06
NL7804772A (en) 1978-11-07
DK191378A (en) 1978-11-06
FI781369A (en) 1978-11-06
AU518941B2 (en) 1981-10-29
IT1095722B (en) 1985-08-17
CH627317A5 (en) 1981-12-31
AU3577078A (en) 1979-11-08
YU101778A (en) 1982-08-31
GB1604106A (en) 1981-12-02
BE866727A (en) 1978-09-01
DE2720079C3 (en) 1981-11-05
DE2720079A1 (en) 1978-11-09
FR2390056A1 (en) 1978-12-01
NO781338L (en) 1978-11-07
ATA303978A (en) 1983-02-15

Similar Documents

Publication Publication Date Title
JPS5412525A (en) High quality printer
GB2043392B (en) Half-tone facsimile reproduction
GB2055270B (en) Facsimile apparatus
JPS54105552A (en) Print copying apparatus including scanning apparatus
JPS5694868A (en) Facsimile apparatus
SE7809730L (en) IMAGE VIEWER
GB2048608B (en) Facsimile apparatus
DK417278A (en) IMAGE VIEWER
JPS5439517A (en) Facsimile transmitter
GB2090196B (en) Image forming apparatus
SE7807316L (en) FAX TRANSMISSION FACILITY
GB1546359A (en) Apparatus for digital halftone reproduction
SE7809731L (en) IMAGE VIEWER
GB2013363B (en) Image formation apparatus
SE7809729L (en) IMAGE VIEWER
JPS5458502A (en) Method of mounting document at color scanner
JPS5446408A (en) Document analyzer for facsimile transmitter
GB2012081B (en) Image forming apparatus
DK297478A (en) COLOR TELEVISION RECEPTION SYSTEM
DK297678A (en) COLOR TELEVISION RECEPTION SYSTEM
GB2010643B (en) Facsimile transmission system
JPS5416114A (en) Picture scanner
DK297578A (en) COLOR TELEVISION RECEPTION SYSTEM
AT372561B (en) FACSIMILE TRANSMISSION ARRANGEMENT FOR IMPROVING IMAGE QUALITY
GB2065905B (en) Line-by-line photocopying

Legal Events

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