JPS5510690A - Handy scanner - Google Patents

Handy scanner

Info

Publication number
JPS5510690A
JPS5510690A JP8429278A JP8429278A JPS5510690A JP S5510690 A JPS5510690 A JP S5510690A JP 8429278 A JP8429278 A JP 8429278A JP 8429278 A JP8429278 A JP 8429278A JP S5510690 A JPS5510690 A JP S5510690A
Authority
JP
Japan
Prior art keywords
signal
output
light
picture signal
ccd
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
JP8429278A
Other languages
Japanese (ja)
Inventor
Toshitaka Hirata
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 JP8429278A priority Critical patent/JPS5510690A/en
Publication of JPS5510690A publication Critical patent/JPS5510690A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To make it possible to read a picture signal under the circumstances of the fixed quantity of light.
CONSTITUTION: In the figure, 1 and 2 indicate an original and lamps and a clock signal generated by supplying synchronizing signal A to clock generatot 13 is supplied to CCD driver circuit 14; and CCD scanner 4 is operated picture signal output G can be obtained from amplifier 15. The output of photo sensor 7 receiving light from standard reflecting plate 5 is amplified by amplifier 10 and applied to integrator 11. Output B from integrator 11, on the other hand, is applied to level detector 12 and when the level reaches a fixed value, level detector 12 output signal D. Signal D indicates that the quantity of light reaches the fixed level, CCD is driven on the basis of this signal to extract a picture signal, so that a picture signal with the constant quantity of accumulated light can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP8429278A 1978-07-11 1978-07-11 Handy scanner Pending JPS5510690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8429278A JPS5510690A (en) 1978-07-11 1978-07-11 Handy scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8429278A JPS5510690A (en) 1978-07-11 1978-07-11 Handy scanner

Publications (1)

Publication Number Publication Date
JPS5510690A true JPS5510690A (en) 1980-01-25

Family

ID=13826385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8429278A Pending JPS5510690A (en) 1978-07-11 1978-07-11 Handy scanner

Country Status (1)

Country Link
JP (1) JPS5510690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752968A (en) * 1980-09-16 1982-03-29 Matsushita Graphic Commun Syst Inc Hand scanning device
JPS61133859U (en) * 1985-02-04 1986-08-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752968A (en) * 1980-09-16 1982-03-29 Matsushita Graphic Commun Syst Inc Hand scanning device
JPS61133859U (en) * 1985-02-04 1986-08-21
JPH0215160Y2 (en) * 1985-02-04 1990-04-24

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