IT1097113B - Impianto di trasmissione di fac simile a riduzione di ridondanza - Google Patents

Impianto di trasmissione di fac simile a riduzione di ridondanza

Info

Publication number: IT1097113B
Authority: IT; Italy
Prior art keywords: fac; transmission system; system similar; redundancy reduction; redundancy
Prior art date: 1977-06-30

Application number

IT24789/78A

Other languages

English (en)

Other versions

IT7824789A0 (it

Original Assignee

Cit Alcatel

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.)

1977-06-30

Filing date

1978-06-21

Publication date

1985-08-26

1978-06-21 Application filed by Cit Alcatel filed Critical Cit Alcatel

1978-06-21 Publication of IT7824789A0 publication Critical patent/IT7824789A0/it

1985-08-26 Application granted granted Critical

1985-08-26 Publication of IT1097113B publication Critical patent/IT1097113B/it

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/005—Statistical coding, e.g. Huffman, run length coding
- 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
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Multimedia (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Signal Processing (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Facsimile Transmission Control (AREA)
Communication Control (AREA)

IT24789/78A 1977-06-30 1978-06-21 Impianto di trasmissione di fac simile a riduzione di ridondanza IT1097113B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7720078A FR2396479A1 (fr)	1977-06-30	1977-06-30	Installation de transmission de fac-simile a reduction de redondance

Publications (2)

Publication Number	Publication Date
IT7824789A0 IT7824789A0 (it)	1978-06-21
IT1097113B true IT1097113B (it)	1985-08-26

Family

ID=9192767

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT24789/78A IT1097113B (it)	1977-06-30	1978-06-21	Impianto di trasmissione di fac simile a riduzione di ridondanza

Country Status (14)

Country	Link
US (1)	US4228467A (it)
JP (1)	JPS5413731A (it)
BE (1)	BE868029A (it)
BR (1)	BR7804206A (it)
CA (1)	CA1111547A (it)
DE (1)	DE2828012C2 (it)
DK (1)	DK146430C (it)
FR (1)	FR2396479A1 (it)
GB (1)	GB2000663B (it)
IE (1)	IE46860B1 (it)
IT (1)	IT1097113B (it)
LU (1)	LU79877A1 (it)
NL (1)	NL176826C (it)
SE (1)	SE438584B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5537003A (en) *	1978-09-07	1980-03-14	Hitachi Ltd	Facsimile transmitter having redundancy suppression function
FR2441297A1 (fr) *	1978-11-09	1980-06-06	Cit Alcatel	Dispositif de conversion binaire et applications aux emetteurs et recepteurs d'informations d'image a reduction de redondance
US4371908A (en) *	1979-09-17	1983-02-01	Tokyo Shibaura Denki Kabushiki Kaisha	Digital protective relaying systems
US4316222A (en) *	1979-12-07	1982-02-16	Ncr Canada Ltd. - Ncr Canada Ltee	Method and apparatus for compression and decompression of digital image data
US4334246A (en) *	1980-05-16	1982-06-08	Xerox Corporation	Data decompressor circuit
FR2494529B1 (fr) *	1980-11-17	1986-02-07	France Etat	Systeme de transmission numerique a codage adaptatif d'informations analogiques echantillonnees et transformees par transformation orthogonale
US4499498A (en) *	1982-01-14	1985-02-12	Nippon Electric Co., Ltd.	Run length decoding apparatus
US4516246A (en) *	1982-02-26	1985-05-07	Prentice Corporation	Data compression system
US4509194A (en) *	1982-09-09	1985-04-02	Minnesota Mining And Manufacturing Company	Apparatus for producing a code word
US4493093A (en) *	1982-11-08	1985-01-08	Eastman Kodak Company	Zero overhead sync in data recording
JPS59131267A (ja) *	1983-01-18	1984-07-28	Ricoh Co Ltd	符号化装置
JPS59148467A (ja) *	1983-02-14	1984-08-25	Canon Inc	デ−タ圧縮装置
GB2146874A (en) *	1983-08-26	1985-04-24	British Telecomm	Decoding of minimum redundancy codes
US4574382A (en) *	1983-10-05	1986-03-04	International Business Machines Corporation	Variable length character code system
DE3482298D1 (de) *	1983-12-08	1990-06-21	Crosfield Electronics Ltd	Apparat zum kodieren und dekodieren von daten.
US5060242A (en) *	1989-02-24	1991-10-22	General Electric Company	Non-destructive lossless image coder
WO1991006153A1 (en) *	1989-10-06	1991-05-02	Zoran Corporation	Huffman data string decompression apparatus and method
GB9020596D0 (en) *	1990-09-21	1990-10-31	Alcatel Business Systems	Data transmission method and apparatus
US5874907A (en) *	1997-09-19	1999-02-23	International Business Machines Corporation	Method and apparatus for providing improved data compression efficiency for an adaptive data compressor
KR20040077921A (ko) *	2002-02-01	2004-09-07	코닌클리케 필립스 일렉트로닉스 엔.브이.	가변 길이 칼라 코드들로 팔레트화된 칼라 화상들의 압축
JP4569785B2 (ja) *	2008-01-07	2010-10-27	富士ゼロックス株式会社	二値化装置及び二値化処理プログラム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3474442A (en) *	1966-10-03	1969-10-21	Xerox Corp	Format generator circuit
US3748379A (en) *	1970-01-22	1973-07-24	Electronic Image Sys Corp	Run length coding technique
DE2127516C2 (de) *	1971-06-03	1982-04-29	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Verfahren zur Übertragung binärcodierter Signale von Bildvorlagen oder Schriftvorlagen
US4092676A (en) *	1976-12-29	1978-05-30	Xerox Corporation	Block length multiple plus run length residue codes for run length encoding
US4092675A (en) *	1976-12-29	1978-05-30	Xerox Corporation	Truncated run length encoding with a modular variable length code format

1977
- 1977-06-30 FR FR7720078A patent/FR2396479A1/fr active Granted
1978
- 1978-06-12 BE BE1008929A patent/BE868029A/xx not_active IP Right Cessation
- 1978-06-19 GB GB7827273A patent/GB2000663B/en not_active Expired
- 1978-06-20 US US05/917,428 patent/US4228467A/en not_active Expired - Lifetime
- 1978-06-21 IT IT24789/78A patent/IT1097113B/it active
- 1978-06-26 DE DE2828012A patent/DE2828012C2/de not_active Expired
- 1978-06-27 LU LU79877A patent/LU79877A1/xx unknown
- 1978-06-28 CA CA306,369A patent/CA1111547A/fr not_active Expired
- 1978-06-28 SE SE7807316A patent/SE438584B/sv not_active IP Right Cessation
- 1978-06-29 IE IE1310/78A patent/IE46860B1/en unknown
- 1978-06-29 DK DK294478A patent/DK146430C/da not_active IP Right Cessation
- 1978-06-30 JP JP7879578A patent/JPS5413731A/ja active Pending
- 1978-06-30 BR BR7804206A patent/BR7804206A/pt unknown
- 1978-06-30 NL NLAANVRAGE7807141,A patent/NL176826C/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE2828012C2 (de)	1981-09-17
DE2828012A1 (de)	1979-01-04
JPS5413731A (en)	1979-02-01
BE868029A (fr)	1978-12-12
FR2396479A1 (fr)	1979-01-26
NL176826C (nl)	1985-06-03
LU79877A1 (fr)	1979-02-12
BR7804206A (pt)	1979-04-03
NL176826B (nl)	1985-01-02
IT7824789A0 (it)	1978-06-21
FR2396479B1 (it)	1982-10-29
GB2000663A (en)	1979-01-10
IE781310L (en)	1978-12-30
DK294478A (da)	1978-12-31
GB2000663B (en)	1982-01-20
CA1111547A (fr)	1981-10-27
US4228467A (en)	1980-10-14
DK146430C (da)	1984-03-12
NL7807141A (nl)	1979-01-03
DK146430B (da)	1983-10-03
IE46860B1 (en)	1983-10-05
SE438584B (sv)	1985-04-22
SE7807316L (sv)	1978-12-31

Publication	Publication Date	Title
IT1097113B (it)	1985-08-26	Impianto di trasmissione di fac simile a riduzione di ridondanza
FI790170A (fi)	1979-07-20	System foer personlig identifiering
SE7804475L (sv)	1978-10-21	Hydraulisk transmission
NO822846L (no)	1983-02-23	Fremgangsmaate for aa tilveiebringe adgang til et telekommunikasjonsoverfoeringssystem
IT7967399A0 (it)	1979-02-22	Di fac simile pparecchiatura per la trasmissione
DK153346C (da)	1988-12-19	Processtyringssystem
IT1130052B (it)	1986-06-11	Impianto idraulico
NL7710503A (nl)	1979-03-29	Digitaal transmissiestelsel.
AT373408B (de)	1984-01-25	Gefahrenmeldeanlage
DK413478A (da)	1980-03-20	Byggesystem
IT1078093B (it)	1985-05-08	Unita'di freno con trasmissione idraulica
BE880754A (fr)	1980-04-16	Perfectionnements relatifs a des systemes de haut-parleurs
BE875253A (nl)	1979-10-02	Hydraulisch systeem
NL7806930A (nl)	1979-01-03	Transmissiestelsel.
IT1123854B (it)	1986-04-30	Disposizione di comando per generare un segnale dipendente dalla frequenza
JPS5538600A (en)	1980-03-18	Double reflectinggmirror type optical system
IT1122722B (it)	1986-04-23	Perfezionamenti a sistemi idraulici
DK77379A (da)	1979-08-24	Ingitalt informationsoverfoeringssystem
RO78448A (ro)	1982-02-26	Sistem de glisare cu caracteristici imbunatatite
BR8207870A (pt)	1983-08-30	Aperfeicoamentos relativos a dispositivos de levantamento
SE7906560L (sv)	1980-02-05	Avgasrenande ljuddempare
FI793568A (fi)	1980-05-21	Videotex-system
DK109378A (da)	1979-09-11	Elektromedicinsk anlaeg
AT380980B (de)	1986-08-11	Fernmeldevermittlungsanlage
FR2510530B1 (fr)	1986-10-17	Transporteur-accumulateur a marche alternee