JPS5592074A - Picture reader - Google Patents

Picture reader

Info

Publication number
JPS5592074A
JPS5592074A JP34879A JP34879A JPS5592074A JP S5592074 A JPS5592074 A JP S5592074A JP 34879 A JP34879 A JP 34879A JP 34879 A JP34879 A JP 34879A JP S5592074 A JPS5592074 A JP S5592074A
Authority
JP
Japan
Prior art keywords
circuit
group
read
code indicating
comparator
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
JP34879A
Other languages
Japanese (ja)
Other versions
JPS6311827B2 (en
Inventor
Shinji Miura
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP34879A priority Critical patent/JPS5592074A/en
Publication of JPS5592074A publication Critical patent/JPS5592074A/en
Publication of JPS6311827B2 publication Critical patent/JPS6311827B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make the read speed of a line sensor high by determining effectively the read width of a divided group of the line sensor to reduce the read ineffective time.
CONSTITUTION: In respect to line sensor 1, plural photoelectric conversion elements are divided into m-number groups, and an output end and a drive end are provided for every group, and transfer clocks ϕ1 and ϕ2 are inputted to this drive end from read selection circuit 2. Circuit 2 is constituted by MOSFET F1∼F2m and decoder 2a, and a code indicating a group is given to decoder 2a from group selection circuit 3. Circuit 3 is constituted by a gate circuit, counter 3a and comparator 3b, and a code indicating a read width is inputted to this circuit 3 from read width setting circuit 4. Circuit 4 is constituted by start address buffer 4a and terminal address buffer 4b and gives a code indicating the start group and a code indicating the terminal group to counter 3a and comparator 3b respectively. When the code of counter 3a becomes equal to the output code of buffer 4b, comparator 3b generates an output.
COPYRIGHT: (C)1980,JPO&Japio
JP34879A 1979-01-01 1979-01-01 Picture reader Granted JPS5592074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34879A JPS5592074A (en) 1979-01-01 1979-01-01 Picture reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34879A JPS5592074A (en) 1979-01-01 1979-01-01 Picture reader

Publications (2)

Publication Number Publication Date
JPS5592074A true JPS5592074A (en) 1980-07-12
JPS6311827B2 JPS6311827B2 (en) 1988-03-16

Family

ID=11471340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34879A Granted JPS5592074A (en) 1979-01-01 1979-01-01 Picture reader

Country Status (1)

Country Link
JP (1) JPS5592074A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125185A (en) * 1982-01-20 1983-07-26 Fujitsu Ltd Character reader
JPS6255777A (en) * 1985-09-05 1987-03-11 Toshiba Corp Reader for picture information
JPS62137682A (en) * 1985-12-11 1987-06-20 Oki Electric Ind Co Ltd Ccd image sensor driving circuit
JPH01315887A (en) * 1988-01-04 1989-12-20 Sumitomo Electric Ind Ltd Optical character reader
JPH10233902A (en) * 1997-02-19 1998-09-02 Nec Robotics Eng Ltd Image input device
US7030920B1 (en) 1999-08-04 2006-04-18 Canon Kabushiki Kaisha Image pickup apparatus using a selector circuit
JP2011101096A (en) * 2009-11-04 2011-05-19 Nihon Art Analog Kk Imaging element control signal generator and method therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917918A (en) * 1972-06-07 1974-02-16
JPS4968610A (en) * 1972-11-02 1974-07-03

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917918A (en) * 1972-06-07 1974-02-16
JPS4968610A (en) * 1972-11-02 1974-07-03

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125185A (en) * 1982-01-20 1983-07-26 Fujitsu Ltd Character reader
JPS6255777A (en) * 1985-09-05 1987-03-11 Toshiba Corp Reader for picture information
JPS62137682A (en) * 1985-12-11 1987-06-20 Oki Electric Ind Co Ltd Ccd image sensor driving circuit
JPH01315887A (en) * 1988-01-04 1989-12-20 Sumitomo Electric Ind Ltd Optical character reader
JPH10233902A (en) * 1997-02-19 1998-09-02 Nec Robotics Eng Ltd Image input device
US7030920B1 (en) 1999-08-04 2006-04-18 Canon Kabushiki Kaisha Image pickup apparatus using a selector circuit
JP2011101096A (en) * 2009-11-04 2011-05-19 Nihon Art Analog Kk Imaging element control signal generator and method therefor

Also Published As

Publication number Publication date
JPS6311827B2 (en) 1988-03-16

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