JPS5633505A - Device for detecting abnormality of circuit pattern - Google Patents

Device for detecting abnormality of circuit pattern

Info

Publication number
JPS5633505A
JPS5633505A JP10836079A JP10836079A JPS5633505A JP S5633505 A JPS5633505 A JP S5633505A JP 10836079 A JP10836079 A JP 10836079A JP 10836079 A JP10836079 A JP 10836079A JP S5633505 A JPS5633505 A JP S5633505A
Authority
JP
Japan
Prior art keywords
circuit
camera
signal
circuit pattern
abnormality
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
JP10836079A
Other languages
Japanese (ja)
Inventor
Takeshi Inoue
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10836079A priority Critical patent/JPS5633505A/en
Publication of JPS5633505A publication Critical patent/JPS5633505A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE: To simplify detecting device and widen the range of its utility, by using a TV camera of variable scanning direction to scan a circuit pattern in an optional direction, processing the output signal of the camera through a digital circuit and an abnormality extraction circuit and displaying an abnormal section on an output unit.
CONSTITUTION: A circuit pattern is scanned in a horizontal direction, for example, by a random access type TV camera 10 according to a scanning direction signal A or B from a scanning direction control circuit 14. The output signal of the TV camera is changed into a binary signal of 1's and 0's by a binary coding circuit 12. The binary signal is applied to an abnormality extraction circuit 12 so that the numbers of consecutive 1's and 0's of the signal are separately counted and compared with the minimum values of prescribed width and spacing for the pattern. The results of the comparison are applied to a computer 15, which performs synthetic analysis about the abnormality of the circuit pattern to indicate its abnormal section. The same inspection is effected by scanning in a vertical direction, for example. This results in simplifying detection device and making it flexible for wider utility to cope with the change in the type of machines.
COPYRIGHT: (C)1981,JPO&Japio
JP10836079A 1979-08-24 1979-08-24 Device for detecting abnormality of circuit pattern Pending JPS5633505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10836079A JPS5633505A (en) 1979-08-24 1979-08-24 Device for detecting abnormality of circuit pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10836079A JPS5633505A (en) 1979-08-24 1979-08-24 Device for detecting abnormality of circuit pattern

Publications (1)

Publication Number Publication Date
JPS5633505A true JPS5633505A (en) 1981-04-04

Family

ID=14482753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10836079A Pending JPS5633505A (en) 1979-08-24 1979-08-24 Device for detecting abnormality of circuit pattern

Country Status (1)

Country Link
JP (1) JPS5633505A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60253854A (en) * 1984-05-30 1985-12-14 Toshiba Corp Discrimination of printed circuit board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60253854A (en) * 1984-05-30 1985-12-14 Toshiba Corp Discrimination of printed circuit board

Similar Documents

Publication Publication Date Title
JPS53135653A (en) Photoelectric detecting optical device
JPS5633505A (en) Device for detecting abnormality of circuit pattern
JPS5537982A (en) Solid-shape detector for characteristic test of deformation of curved-surface body
JPS5511343A (en) Position detecting device
JPS57194304A (en) Inspecting method for circuit pattern
JPS55110905A (en) Defect detecting device
JPS5381153A (en) Inspecting apparatus for positions of object to be inspected
JPS5593365A (en) Judging method for video quality
JPS5644263A (en) Original inclination detecting unit
JPS5617483A (en) Character position detector
JPS5520470A (en) Signal processing method in surface defect detection of high-temperature tested material
JPS5429914A (en) Manuscript reader
JPS55154654A (en) Pattern inspection system
JPS5525105A (en) Character detecting segmantation unit
JPS5492774A (en) Method and apparatus for detecting objects
JPS57179611A (en) Configuration detecting device
JPS5660463A (en) Original size detector of copying machine
JPS5680959A (en) Picture scanner
JPS54147740A (en) Detection system for pattern location
JPS53102736A (en) Original speed detector
JPS5472077A (en) Pattern inspection apparatus
JPS57204969A (en) Closed pattern detection
JPS5531742A (en) Paper-clogging detecting apparatus
JPS5440685A (en) Induction heating type surface flaw detector of test piece
JPS55119766A (en) Picture analyzer