AU518941B2 - Transmitting facsimile signals - Google Patents

Transmitting facsimile signals

Info

Publication number: AU518941B2
Authority: AU; Australia
Prior art keywords: transmitting facsimile; facsimile signals; signals; transmitting; facsimile
Prior art date: 1977-05-05
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

AU35770/78A

Other versions

AU3577078A (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.)

1977-05-05

Filing date

1978-05-04

Publication date

1981-10-29

1978-05-04 Application filed by Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH

1979-11-08 Publication of AU3577078A publication Critical patent/AU3577078A/en

1981-10-29 Application granted granted Critical

1981-10-29 Publication of AU518941B2 publication Critical patent/AU518941B2/en

Status Expired legal-status Critical Current

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
DEDE2720079		1977-05-05
DE2720079A DE2720079C3 (en)	1977-05-05	1977-05-05	Method for improving the image quality in facsimile transmission

Publications (2)

Publication Number	Publication Date
AU3577078A AU3577078A (en)	1979-11-08
AU518941B2 true 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)	FI781369A7 (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

1977
- 1977-05-05 DE DE2720079A patent/DE2720079C3/en not_active Expired
1978
- 1978-04-07 CH CH375478A patent/CH627317A5/en not_active IP Right Cessation
- 1978-04-17 NO NO781338A patent/NO781338L/en unknown
- 1978-04-26 SE SE7804769A patent/SE7804769L/en unknown
- 1978-04-27 YU YU01017/78A patent/YU101778A/en unknown
- 1978-04-27 AT AT0303978A patent/AT372561B/en not_active IP Right Cessation
- 1978-05-03 NL NL7804772A patent/NL7804772A/en not_active Application Discontinuation
- 1978-05-03 FR FR7813231A patent/FR2390056A1/fr not_active Withdrawn
- 1978-05-03 IT IT22932/78A patent/IT1095722B/en active
- 1978-05-03 FI FI781369A patent/FI781369A7/en not_active Application Discontinuation
- 1978-05-03 DK DK191378A patent/DK191378A/en not_active Application Discontinuation
- 1978-05-04 AU AU35770/78A patent/AU518941B2/en not_active Expired
- 1978-05-05 GB GB18069/78A patent/GB1604106A/en not_active Expired
- 1978-05-05 BE BE187411A patent/BE866727A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
NL7804772A (en)	1978-11-07
BE866727A (en)	1978-09-01
FI781369A7 (en)	1978-11-06
DE2720079A1 (en)	1978-11-09
SE7804769L (en)	1978-11-06
ATA303978A (en)	1983-02-15
FR2390056A1 (en)	1978-12-01
YU101778A (en)	1982-08-31
NO781338L (en)	1978-11-07
IT1095722B (en)	1985-08-17
AU3577078A (en)	1979-11-08
IT7822932A0 (en)	1978-05-03
DE2720079C3 (en)	1981-11-05
CH627317A5 (en)	1981-12-31
DE2720079B2 (en)	1981-01-22
DK191378A (en)	1978-11-06
GB1604106A (en)	1981-12-02
AT372561B (en)	1983-10-25

Publication	Publication Date	Title
AU519482B2 (en)	1981-12-03	Duplex transmitter receiver
GB2010020B (en)	1982-07-21	Arrangement for transmitting electrical signals
JPS5658345A (en)	1981-05-21	Transceiver for completely double transmitting digital signal on single line
AU502453B2 (en)	1979-07-26	Facsimile receiver
JPS5439517A (en)	1979-03-27	Facsimile transmitter
AU514263B2 (en)	1981-01-29	Digital echo canceller
AU517559B2 (en)	1981-08-06	Duplex-transmitter receiver arrangement
JPS5413731A (en)	1979-02-01	Facsimile transmitter
AU500328B2 (en)	1979-05-17	Transmission
AU3329378A (en)	1979-05-17	Transmission
AU518883B2 (en)	1981-10-22	Digital transmission system
AU521486B2 (en)	1982-04-01	Transmitting acoustic signals
GB2002997B (en)	1982-03-03	Arrangements for transmitting electrical signals
AU9178782A (en)	1983-06-30	Transmitting alphanumerical signals
GB2010643B (en)	1982-03-31	Facsimile transmission system
AU525926B2 (en)	1982-12-09	Undesired signal canceller
AU518444B2 (en)	1981-10-01	Signal transmission system
AU518941B2 (en)	1981-10-29	Transmitting facsimile signals
AU5659680A (en)	1980-09-25	Pulse receiver
AU508389B2 (en)	1980-03-20	Transmitting facsimile picture signals
AU517762B2 (en)	1981-08-27	Telegraph transmitter
AU513375B2 (en)	1980-11-27	Receiver muting
AU521229B2 (en)	1982-03-25	Transmitting seismic wave signals
SU678705A1 (en)	1979-08-05	Phase-manipulated signal receiver
AU5217479A (en)	1980-05-01	Digital receiver for multifrequency signals