JPS58175358A - Facsimile device - Google Patents

Facsimile device

Info

Publication number
JPS58175358A
JPS58175358A JP57057938A JP5793882A JPS58175358A JP S58175358 A JPS58175358 A JP S58175358A JP 57057938 A JP57057938 A JP 57057938A JP 5793882 A JP5793882 A JP 5793882A JP S58175358 A JPS58175358 A JP S58175358A
Authority
JP
Japan
Prior art keywords
transmitting
jump
receiving
check signal
signals
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.)
Pending
Application number
JP57057938A
Other languages
Japanese (ja)
Inventor
Sadasuke Kurabayashi
Takehiro Yoshida
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP57057938A priority Critical patent/JPS58175358A/en
Publication of JPS58175358A publication Critical patent/JPS58175358A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N1/333Mode signalling or mode changing; Handshaking therefor
    • H04N1/33346Mode signalling or mode changing; Handshaking therefor adapting to a particular standardised protocol
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N1/333Mode signalling or mode changing; Handshaking therefor
    • H04N1/33307Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only
    • H04N1/33323Mode signalling or mode changing; Handshaking therefor prior to start of transmission, input or output of the picture signal only transmission mode only, e.g. speed
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41Bandwidth or redundancy reduction
    • H04N1/411Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/415Systems 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N2201/333Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33342Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
    • H04N2201/3335Speed or rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N2201/333Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33342Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode
    • H04N2201/33371Mode signalling or mode changing; Handshaking therefor of a particular mode of transmission mode using test signals, e.g. checking error occurrences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N2201/333Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33378Type or format of data, e.g. colour or B/W, halftone or binary, computer image file or facsimile data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device
    • H04N2201/333Mode signalling or mode changing; Handshaking therefor
    • H04N2201/33307Mode signalling or mode changing; Handshaking therefor of a particular mode
    • H04N2201/33392Non-standard capability, e.g. relay, mail-box

Abstract

PURPOSE: To obtain an optimum transmitting system, by transmitting and receiving a check signal consisting of a prescribed picture pattern prior to the transmission of a pictures, then changing the picture transmitting system in accordance with the checking result.
CONSTITUTION: A control circuit 114 receives a check signal from a transmitter and stores the receiving result of a jump check signal and the receiving result of a black ghost check signal to memories A116 and B118 respectively. Then a decision is given to the receiving states of both jump and black ghost check signals. When the receiving states of both signals are satisfactory, an original is transmitted by the 1st transmitting system which transmits a jump signal indicating a jump of the white information group. In case the deciding result is unsatisfactory with either one of both signals, the original is transmitted by the 2nd transmitting system which transmits no jump signal or by the 3rd transmitting system which performs the phase matching immediately before transmission of the picture information.
COPYRIGHT: (C)1983,JPO&Japio
JP57057938A 1982-04-07 1982-04-07 Facsimile device Pending JPS58175358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57057938A JPS58175358A (en) 1982-04-07 1982-04-07 Facsimile device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP57057938A JPS58175358A (en) 1982-04-07 1982-04-07 Facsimile device
BR8301776A BR8301776A (en) 1982-04-07 1983-04-06 Facsimile machine
FR8305672A FR2525057B1 (en) 1982-04-07 1983-04-07 Fax system
GB08309396A GB2124851B (en) 1982-04-07 1983-04-07 Facsimile system

Publications (1)

Publication Number Publication Date
JPS58175358A true JPS58175358A (en) 1983-10-14

Family

ID=13069962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57057938A Pending JPS58175358A (en) 1982-04-07 1982-04-07 Facsimile device

Country Status (4)

Country Link
JP (1) JPS58175358A (en)
BR (1) BR8301776A (en)
FR (1) FR2525057B1 (en)
GB (1) GB2124851B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01243748A (en) * 1988-03-25 1989-09-28 Oki Electric Ind Co Ltd Facsimile communication system and facsimile equipment
JPH07105857B2 (en) * 1989-03-16 1995-11-13 富士ゼロックス株式会社 Image reader self-diagnosis system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575465A (en) * 1980-06-13 1982-01-12 Mitsubishi Electric Corp Facsimile signal transmission system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280152A (en) * 1968-03-29 1972-07-05 Smiths Industries Ltd Improvements in or relating to information transmission systems
JPS5816668B2 (en) * 1976-11-12 1983-04-01 Fujitsu Ltd
GB1543698A (en) * 1977-04-04 1979-04-04 Xerox Corp Modem speed selector
JPS6028424B2 (en) * 1977-04-25 1985-07-04 Kokusai Denshin Denwa Co Ltd
JPS5854695B2 (en) * 1977-06-20 1983-12-06 Kokusai Denshin Denwa Co Ltd
US4366505A (en) * 1978-09-20 1982-12-28 Canon Kabushiki Kaisha Information forming apparatus
IL62566D0 (en) * 1980-04-18 1981-06-29 Kearney & Trecker Corp Digital data transmission system
DE3139876A1 (en) * 1980-10-07 1982-05-27 Canon Kk Method and device for image processing
BR8300741A (en) * 1982-02-13 1983-11-16 Canon Kk Fac-simile system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575465A (en) * 1980-06-13 1982-01-12 Mitsubishi Electric Corp Facsimile signal transmission system

Also Published As

Publication number Publication date
FR2525057A1 (en) 1983-10-14
GB8309396D0 (en) 1983-05-11
BR8301776A (en) 1983-12-20
FR2525057B1 (en) 1989-07-13
GB2124851B (en) 1986-08-13
GB2124851A (en) 1984-02-22

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