JPS5680963A - Picture reader - Google Patents

Picture reader

Info

Publication number
JPS5680963A
JPS5680963A JP15856479A JP15856479A JPS5680963A JP S5680963 A JPS5680963 A JP S5680963A JP 15856479 A JP15856479 A JP 15856479A JP 15856479 A JP15856479 A JP 15856479A JP S5680963 A JPS5680963 A JP S5680963A
Authority
JP
Japan
Prior art keywords
picture
signal
element data
final
overlapping
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
JP15856479A
Other languages
Japanese (ja)
Inventor
Tadashi Yoshida
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.)
Canon Inc
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 JP15856479A priority Critical patent/JPS5680963A/en
Publication of JPS5680963A publication Critical patent/JPS5680963A/en
Pending 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
    • H04N1/40—Picture signal circuits
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means

Abstract

PURPOSE:To make picture data continue without overlapping and sepaating by setting adjacent solid-state scanning elements overlapping by one picture element and by finding the average of overlapping picture element and regarding it as the level of one picture element. CONSTITUTION:Signal 8 from solid-stage scanning element 1 is outputted, as it is, to output terminal 19 until the final picture-element data arrives. The final picture- element data enters operational amplifier 18 via switch S2. Signal 9 from solid-state scanning element 2, on the other hand has the 1st picture-element data held by sample holding circuit 17 and the following signals are outputted, as they are, to output terminal 20. The picture-element data held by sample holding circuit 17 is inputted to operational amplifier 18 simultaneously with the final picture-element data of signal 8 to calculate the mean value, which becomes the final picture- element data of signal 8 via switch S1. Output picture-element signals at output terminals 19 and 20 are linked together after AD conversion.
JP15856479A 1979-12-06 1979-12-06 Picture reader Pending JPS5680963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15856479A JPS5680963A (en) 1979-12-06 1979-12-06 Picture reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15856479A JPS5680963A (en) 1979-12-06 1979-12-06 Picture reader

Publications (1)

Publication Number Publication Date
JPS5680963A true JPS5680963A (en) 1981-07-02

Family

ID=15674447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15856479A Pending JPS5680963A (en) 1979-12-06 1979-12-06 Picture reader

Country Status (1)

Country Link
JP (1) JPS5680963A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219258A (en) * 1985-03-26 1986-09-29 Toshiba Corp Image reader
JPS62101170A (en) * 1985-10-28 1987-05-11 Toshiba Corp Picture reader
US9392140B2 (en) 2014-09-22 2016-07-12 Fuji Xerox Co., Ltd. Image processing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61219258A (en) * 1985-03-26 1986-09-29 Toshiba Corp Image reader
JPS62101170A (en) * 1985-10-28 1987-05-11 Toshiba Corp Picture reader
US9392140B2 (en) 2014-09-22 2016-07-12 Fuji Xerox Co., Ltd. Image processing apparatus

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