FR2340654A1 - Dispositif de transmission de fac-similes - Google Patents

Dispositif de transmission de fac-similes

Info

Publication number: FR2340654A1
Authority: FR; France
Prior art keywords: transmission device; facsimile transmission; facsimile; transmission
Prior art date: 1976-02-05
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.): Granted

Application number

FR7703243A

Other languages

English (en)

Other versions

FR2340654B1 (fr

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.)

Fujitsu Ltd

Original Assignee

Fujitsu Ltd

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.)

1976-02-05

Filing date

1977-02-04

Publication date

1977-09-02

1977-02-04 Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd

1977-09-02 Publication of FR2340654A1 publication Critical patent/FR2340654A1/fr

1983-01-07 Application granted granted Critical

1983-01-07 Publication of FR2340654B1 publication Critical patent/FR2340654B1/fr

Status Granted 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
- H04N1/41—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
- H04N1/415—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which the picture-elements are subdivided or grouped into fixed one-dimensional or two-dimensional blocks
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture
- 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

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Facsimile Scanning Arrangements (AREA)
Facsimiles In General (AREA)
Facsimile Transmission Control (AREA)
Facsimile Image Signal Circuits (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Compression Of Band Width Or Redundancy In Fax (AREA)

FR7703243A 1976-02-05 1977-02-04 Dispositif de transmission de fac-similes Granted FR2340654A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP1205376A JPS5295113A (en)	1976-02-05	1976-02-05	Band compression transmission system

Publications (2)

Publication Number	Publication Date
FR2340654A1 true FR2340654A1 (fr)	1977-09-02
FR2340654B1 FR2340654B1 (fr)	1983-01-07

Family

ID=11794850

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7703243A Granted FR2340654A1 (fr)	1976-02-05	1977-02-04	Dispositif de transmission de fac-similes

Country Status (8)

Country	Link
US (1)	US4158861A (fr)
JP (1)	JPS5295113A (fr)
AU (1)	AU514216B2 (fr)
CA (1)	CA1119285A (fr)
DE (1)	DE2704772C3 (fr)
ES (1)	ES455697A1 (fr)
FR (1)	FR2340654A1 (fr)
GB (1)	GB1573753A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4492978A (en) *	1979-03-12	1985-01-08	Westinghouse Electric Corp.	Transmission system for TV signals
JPS57115072A (en) *	1981-01-07	1982-07-17	Fuji Xerox Co Ltd	Method for reading information of document reader
US4760462A (en) *	1981-03-26	1988-07-26	Ricoh Company, Ltd.	Heat sensitive recording system in facsimile communication
BE889996A (nl) *	1981-08-18	1981-12-16	Belge Lampes Mat Electr Mble	Facsimile overdrachtsinrichting
US4447830A (en) *	1981-09-10	1984-05-08	Xerox Corporation	Image scanning apparatus and method
JPS5911063A (ja) *	1982-07-12	1984-01-20	Ricoh Co Ltd	フアクシミリ装置
JPS59215174A (ja) *	1983-05-20	1984-12-05	Canon Inc	フアクシミリ装置
US4729034A (en) *	1985-06-27	1988-03-01	Netexpress Systems, Inc.	Method and apparatus for selection of a coding reference line for two-dimensional coding of image data representing screened images
JPH0656958B2 (ja) *	1986-07-03	1994-07-27	キヤノン株式会社	情報デ−タ復元装置
JPS6358448U (fr) *	1986-10-06	1988-04-19
US5181126A (en) *	1989-02-09	1993-01-19	Murata Kikai Kabushiki Kaisha	Reading device for facsimile apparatus
JPH04504043A (ja) *	1989-12-22	1992-07-16	イーストマン・コダック・カンパニー	画像データの高速圧縮

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3991267A (en) *	1970-01-26	1976-11-09	Eg & G, Inc.	Method for producing a compressed digital representation of a visible image
US3643016A (en) *	1970-05-11	1972-02-15	Magnavox Co	Facsimile system with data compression by {37 white space skipping{38
JPS5132488B2 (fr) *	1971-12-30	1976-09-13
GB1409365A (en) *	1972-02-17	1975-10-08	Dacom Inc	Dual-line data compression method and system for compressing transmitting and reproducing facsimile data
US3947627A (en) *	1972-10-30	1976-03-30	Matsushita Electric Industrial Company, Limited	Facsimile system
JPS5222494B2 (fr) *	1972-12-15	1977-06-17
US3830966A (en) *	1973-01-03	1974-08-20	Eg & G Inc	Apparatus and method for transmitting a bandwidth compressed digital signal representation of a visible image
US3955045A (en) *	1974-03-08	1976-05-04	Exxon Research And Engineering Company	Method and apparatus for time compression of facsimile transmissions
JPS586343B2 (ja) *	1974-06-11	1983-02-04	富士通株式会社	カヘンソウサセンミツドセイギヨホウシキ
JPS5949750B2 (ja) *	1974-06-11	1984-12-04	富士通株式会社	可変走査線密度制御方式

1976
- 1976-02-05 JP JP1205376A patent/JPS5295113A/ja active Granted
1977
- 1977-01-26 GB GB3691/77A patent/GB1573753A/en not_active Expired
- 1977-01-28 US US05/763,516 patent/US4158861A/en not_active Expired - Lifetime
- 1977-02-01 CA CA000270798A patent/CA1119285A/fr not_active Expired
- 1977-02-04 AU AU21977/77A patent/AU514216B2/en not_active Expired
- 1977-02-04 FR FR7703243A patent/FR2340654A1/fr active Granted
- 1977-02-04 DE DE2704772A patent/DE2704772C3/de not_active Expired
- 1977-02-05 ES ES455697A patent/ES455697A1/es not_active Expired

Also Published As

Publication number	Publication date
JPS5734948B2 (fr)	1982-07-26
FR2340654B1 (fr)	1983-01-07
GB1573753A (en)	1980-08-28
DE2704772C3 (de)	1981-11-12
DE2704772A1 (de)	1977-08-11
US4158861A (en)	1979-06-19
AU514216B2 (en)	1981-01-29
AU2197777A (en)	1978-08-10
DE2704772B2 (de)	1981-01-22
JPS5295113A (en)	1977-08-10
ES455697A1 (es)	1978-07-16
CA1119285A (fr)	1982-03-02

Publication	Publication Date	Title
FR2350110A1 (fr)	1977-12-02	Dispositif de catheterisme
FR2352451A1 (fr)	1977-12-16	Dispositif de diversite pour transmissions radiotelephoniques numeriques
SE7711817L (sv)	1978-05-02	Datatransmissionsanordning
BE856952A (fr)	1978-01-19	Dispositif de raccord de tuyaux
BE859287A (fr)	1978-03-30	Dispositif de traversee
FR2306384A1 (fr)	1976-10-29	Dispositif de transmission hydrostatique
NL7706893A (nl)	1978-01-03	Afbeeldingsinrichting.
AR215013A1 (es)	1979-08-31	Mecanismo de trasmision
BE885782A (fr)	1981-04-17	Dispositif de permeation
FR2341769A1 (fr)	1977-09-16	Dispositif de jonction
BE860539A (fr)	1978-03-01	Dispositif de transmission de donnees numeriques
FR2352212A1 (fr)	1977-12-16	Dispositif de transmission de couple a actionnement electromagnetique
BE860297A (fr)	1978-02-15	Dispositif de surveillance
BE850738A (nl)	1977-07-26	Dispositif de volant reglable et de verrouillage de transmission
DK451976A (da)	1977-12-17	Transmissionsenhed
FR2340654A1 (fr)	1977-09-02	Dispositif de transmission de fac-similes
BE882132A (fr)	1980-07-01	Dispositif anti-enchainement
BE858180A (fr)	1977-12-16	Dispositif de blindage
FR2347571A1 (fr)	1977-11-04	Dispositif de debrayage
BE876351A (fr)	1979-09-17	Dispositif tendeur
OA05667A (fr)	1981-05-31	Dispositif de levage
FR2472309B1 (fr)	1986-05-30	Dispositif de codage
BR7708420A (pt)	1978-07-25	Dispositivo de acoplamento
BE851486A (fr)	1977-06-16	Dispositif de raccordement
BE854366A (fr)	1977-11-07	Dispositif de catheterisme

Legal Events

Date	Code	Title	Description
1995-12-29	ST	Notification of lapse