JPS6484988A - Movement detection circuit - Google Patents

Movement detection circuit

Info

Publication number
JPS6484988A
JPS6484988A JP62242104A JP24210487A JPS6484988A JP S6484988 A JPS6484988 A JP S6484988A JP 62242104 A JP62242104 A JP 62242104A JP 24210487 A JP24210487 A JP 24210487A JP S6484988 A JPS6484988 A JP S6484988A
Authority
JP
Japan
Prior art keywords
signal
color
difference
detection circuit
detect
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
JP62242104A
Other languages
Japanese (ja)
Inventor
Shigeo Niitsu
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62242104A priority Critical patent/JPS6484988A/en
Publication of JPS6484988A publication Critical patent/JPS6484988A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To detect a color moving signal without being disturbed by a luminance signal very easily and surely by detecting a difference of an absolute value of a color signal between frames to detect a color moving signal. CONSTITUTION:An input signal 11 digitized by A/D-converting an input video signal is subject to one frame delay by a frame memory 12 and only a color signal is extracted by band pass filters 13, 14 from a signal before one frame delay and a retarded signal. The band pass filters 13, 14 are used to pass frequency components below and over the 3.58MHz component being a color subcarrier of the color signal. The signal is given respectively to absolute value circuits 15, 16 to convert it into a DC signal and a differential detection circuit 17 takes each difference to obtain a detection signal 18 being a difference of the color signal.
JP62242104A 1987-09-25 1987-09-25 Movement detection circuit Pending JPS6484988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242104A JPS6484988A (en) 1987-09-25 1987-09-25 Movement detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242104A JPS6484988A (en) 1987-09-25 1987-09-25 Movement detection circuit

Publications (1)

Publication Number Publication Date
JPS6484988A true JPS6484988A (en) 1989-03-30

Family

ID=17084358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242104A Pending JPS6484988A (en) 1987-09-25 1987-09-25 Movement detection circuit

Country Status (1)

Country Link
JP (1) JPS6484988A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60160795A (en) * 1984-02-01 1985-08-22 Hitachi Ltd Movement detecting circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60160795A (en) * 1984-02-01 1985-08-22 Hitachi Ltd Movement detecting circuit

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