JPS5397319A - Facsimile scanning system - Google Patents

Facsimile scanning system

Info

Publication number
JPS5397319A
JPS5397319A JP1272977A JP1272977A JPS5397319A JP S5397319 A JPS5397319 A JP S5397319A JP 1272977 A JP1272977 A JP 1272977A JP 1272977 A JP1272977 A JP 1272977A JP S5397319 A JPS5397319 A JP S5397319A
Authority
JP
Japan
Prior art keywords
scanning system
video signal
scanning frequency
facsimile scanning
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
JP1272977A
Other languages
Japanese (ja)
Other versions
JPS5855712B2 (en
Inventor
Minoru Tanaka
Takeshi Kubota
Setsuo Hashimoto
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.)
Panasonic System Solutions Japan Co Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Graphic Communication Systems Inc
Matsushita Electric Industrial Co 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.)
Filing date
Publication date
Application filed by Matsushita Graphic Communication Systems Inc, Matsushita Electric Industrial Co Ltd filed Critical Matsushita Graphic Communication Systems Inc
Priority to JP52012729A priority Critical patent/JPS5855712B2/en
Priority to GB474778A priority patent/GB1572539A/en
Priority to DE19782804979 priority patent/DE2804979A1/en
Priority to FR7804052A priority patent/FR2379955A1/en
Priority to CA296,601A priority patent/CA1130443A/en
Priority to US05/877,795 priority patent/US4159488A/en
Publication of JPS5397319A publication Critical patent/JPS5397319A/en
Publication of JPS5855712B2 publication Critical patent/JPS5855712B2/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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • 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
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means

Abstract

PURPOSE: To prevent the reduction of the video output level by the amount equivalent to the increase of the basic scanning frequency, by delivering the video signal without applying the start pulse at the necessary part of the video signal based on the minimum cycle among the plural main scanning frequency.
COPYRIGHT: (C)1978,JPO&Japio
JP52012729A 1977-02-07 1977-02-07 Facsimile scanning method Expired JPS5855712B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP52012729A JPS5855712B2 (en) 1977-02-07 1977-02-07 Facsimile scanning method
GB474778A GB1572539A (en) 1977-02-07 1978-02-06 Variable speed facsimile transmitter using storage mode photodetection array
DE19782804979 DE2804979A1 (en) 1977-02-07 1978-02-06 FACSIMILE TRANSMITTER WITH CHANGEABLE SENDING SPEED AND PROCEDURE FOR OPERATING SUCH
FR7804052A FR2379955A1 (en) 1977-02-07 1978-02-07 VARIABLE SPEED FACSIMILE TRANSMITTER USING A PHOTO-DETECTION NETWORK IN MEMORY MODE
CA296,601A CA1130443A (en) 1977-02-07 1978-02-07 Variable speed facsimile transmitter using storage mode photodetection array
US05/877,795 US4159488A (en) 1977-02-07 1978-02-13 Variable speed facsimile transmitter using storage mode photodetection array

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52012729A JPS5855712B2 (en) 1977-02-07 1977-02-07 Facsimile scanning method

Publications (2)

Publication Number Publication Date
JPS5397319A true JPS5397319A (en) 1978-08-25
JPS5855712B2 JPS5855712B2 (en) 1983-12-10

Family

ID=11813518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52012729A Expired JPS5855712B2 (en) 1977-02-07 1977-02-07 Facsimile scanning method

Country Status (5)

Country Link
JP (1) JPS5855712B2 (en)
CA (1) CA1130443A (en)
DE (1) DE2804979A1 (en)
FR (1) FR2379955A1 (en)
GB (1) GB1572539A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556759A (en) * 1978-10-23 1980-04-25 Alden Res Found Facsimile recorder having scanning speed detector
JPS56158571A (en) * 1980-05-12 1981-12-07 Nec Corp Facsimile dispatching broadcast communication system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141520A (en) * 1977-05-16 1978-12-09 Ricoh Co Ltd Picture scanning read system of semiconductor photo detector
FR2440668A1 (en) * 1978-11-03 1980-05-30 Thomson Csf PHOTOSENSOR ANALYSIS DEVICE AND FACSIMILE APPARATUS COMPRISING SUCH A DEVICE
JPS5995769A (en) * 1982-11-25 1984-06-01 Hitachi Ltd Ccd sensor driver
FR2568077B1 (en) * 1984-07-17 1994-08-12 Canon Kk IMAGE READING APPARATUS.
JPH0748785B2 (en) * 1986-07-04 1995-05-24 キヤノン株式会社 Signal readout method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130118A (en) * 1973-04-13 1974-12-13

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867569A (en) * 1974-02-25 1975-02-18 Bell Telephone Labor Inc Compact flatbed page scanner
JPS5423761B2 (en) * 1975-03-13 1979-08-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130118A (en) * 1973-04-13 1974-12-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556759A (en) * 1978-10-23 1980-04-25 Alden Res Found Facsimile recorder having scanning speed detector
JPS56158571A (en) * 1980-05-12 1981-12-07 Nec Corp Facsimile dispatching broadcast communication system
JPS6226623B2 (en) * 1980-05-12 1987-06-10 Nippon Electric Co

Also Published As

Publication number Publication date
DE2804979A1 (en) 1978-08-17
FR2379955A1 (en) 1978-09-01
DE2804979B2 (en) 1981-07-18
FR2379955B1 (en) 1983-01-14
CA1130443A (en) 1982-08-24
GB1572539A (en) 1980-07-30
JPS5855712B2 (en) 1983-12-10
DE2804979C3 (en) 1982-05-13

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