AU3577078A - Transmitting facsimile signals - Google Patents

Transmitting facsimile signals

Info

Publication number
AU3577078A
AU3577078A AU35770/78A AU3577078A AU3577078A AU 3577078 A AU3577078 A AU 3577078A AU 35770/78 A AU35770/78 A AU 35770/78A AU 3577078 A AU3577078 A AU 3577078A AU 3577078 A AU3577078 A AU 3577078A
Authority
AU
Australia
Prior art keywords
transmitting facsimile
facsimile signals
signals
transmitting
facsimile
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.)
Granted
Application number
AU35770/78A
Other versions
AU518941B2 (en
Inventor
J. and Sommer R Minchow
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.)
Dr Ing Rudolf Hell GmbH
Original Assignee
Dr Ing Rudolf Hell 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 Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Publication of AU3577078A publication Critical patent/AU3577078A/en
Application granted granted Critical
Publication of AU518941B2 publication Critical patent/AU518941B2/en
Expired legal-status Critical Current

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)
AU35770/78A 1977-05-05 1978-05-04 Transmitting facsimile signals Expired AU518941B2 (en)

Applications Claiming Priority (2)

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
DEDE2720079 1977-05-05

Publications (2)

Publication Number Publication Date
AU3577078A true AU3577078A (en) 1979-11-08
AU518941B2 AU518941B2 (en) 1981-10-29

Family

ID=6008068

Family Applications (1)

Application Number Title Priority Date Filing Date
AU35770/78A Expired AU518941B2 (en) 1977-05-05 1978-05-04 Transmitting facsimile signals

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)

Families Citing this family (3)

* 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
DE3441152A1 (en) * 1984-11-10 1986-05-28 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth METHOD FOR MAGNETICALLY RECORDING AND PLAYING BACK TELECOMMUNICATION SIGNALS, IN PARTICULAR VIDEO TEXT AND / OR CABLE TEXT SIGNALS

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

Also Published As

Publication number Publication date
ATA303978A (en) 1983-02-15
SE7804769L (en) 1978-11-06
YU101778A (en) 1982-08-31
CH627317A5 (en) 1981-12-31
BE866727A (en) 1978-09-01
NL7804772A (en) 1978-11-07
FI781369A (en) 1978-11-06
DE2720079B2 (en) 1981-01-22
DE2720079C3 (en) 1981-11-05
GB1604106A (en) 1981-12-02
IT7822932A0 (en) 1978-05-03
FR2390056A1 (en) 1978-12-01
IT1095722B (en) 1985-08-17
AU518941B2 (en) 1981-10-29
AT372561B (en) 1983-10-25
DE2720079A1 (en) 1978-11-09
DK191378A (en) 1978-11-06
NO781338L (en) 1978-11-07

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