JPS642488A - Registration deviation detector - Google Patents

Registration deviation detector

Info

Publication number
JPS642488A
JPS642488A JP62158478A JP15847887A JPS642488A JP S642488 A JPS642488 A JP S642488A JP 62158478 A JP62158478 A JP 62158478A JP 15847887 A JP15847887 A JP 15847887A JP S642488 A JPS642488 A JP S642488A
Authority
JP
Japan
Prior art keywords
signal
signals
multiplying
generated
difference
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
JP62158478A
Other languages
Japanese (ja)
Other versions
JPH012488A (en
Inventor
Hirobumi Hidari
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.)
Nikon Corp
Original Assignee
Nikon Corp
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 Nikon Corp filed Critical Nikon Corp
Priority to JP62-158478A priority Critical patent/JPH012488A/en
Priority claimed from JP62-158478A external-priority patent/JPH012488A/en
Publication of JPS642488A publication Critical patent/JPS642488A/en
Publication of JPH012488A publication Critical patent/JPH012488A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To accurately detect the quantity and direction of deviations in registration at a high speed by multiplying respective difference signals among primary color signals by a differential signal generated by differentiating the sum signal of the respective R, G, and B signals respectively.
CONSTITUTION: The R, G, and B signals are summed up and differentiated. A positive error signal (h) is obtained by multiplying the obtained differential signal (e) by the difference signal (f) generated by subtracting the R signal from the G signal and a negative error signal (i) is obtained by multiplying the differential signal by the difference signal (g) generated by subtracting the B signal from the G signal. Namely, when the R signal is delayed behind the G signal, the error signal (h) is positive and when the B signal leads the G signal, the error signal (i) is negative. Thus, the quantity and direction of the deviations in registration are accurately detected at a high speed with the relatively simple constitution.
COPYRIGHT: (C)1989,JPO&Japio
JP62-158478A 1987-06-25 Registration shift detection device Pending JPH012488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-158478A JPH012488A (en) 1987-06-25 Registration shift detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-158478A JPH012488A (en) 1987-06-25 Registration shift detection device

Publications (2)

Publication Number Publication Date
JPS642488A true JPS642488A (en) 1989-01-06
JPH012488A JPH012488A (en) 1989-01-06

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