JPS6489764A - Noise eliminating circuit - Google Patents

Noise eliminating circuit

Info

Publication number
JPS6489764A
JPS6489764A JP62244310A JP24431087A JPS6489764A JP S6489764 A JPS6489764 A JP S6489764A JP 62244310 A JP62244310 A JP 62244310A JP 24431087 A JP24431087 A JP 24431087A JP S6489764 A JPS6489764 A JP S6489764A
Authority
JP
Japan
Prior art keywords
edge
output
circuit
signal
coefficient
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
JP62244310A
Other languages
Japanese (ja)
Inventor
Koichi Sato
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.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba Audio Video Engineering 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 Toshiba Corp, Toshiba Audio Video Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP62244310A priority Critical patent/JPS6489764A/en
Publication of JPS6489764A publication Critical patent/JPS6489764A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the resolution of the title circuit from deteriorating by switching the characteristics of a coefficient K in accordance with an edge detecting output when a noise canceling signal is generated with the multiplication of the differential output of the signal before and after one frame and the coefficient stored in a memory. CONSTITUTION:The larger absolute value is selected out of the values of the differential output of the signals on the input side of a latch circuit 11 and on the output side, and the differential output of the signals on the input side of a latch circuit 12 and on the output side, and it is supplied to an edge deciding circuit 26 to switch a coefficient converting action. When the value is larger than an edge deciding level A, the edge deciding circuit 26 outputs the edge signal at one bit, and supplies it to the characteristic switching control terminal of a ROM 15. Thus, at the edge part, even when the value of the differential signal becomes large, the canceling signal is not so large, and the resolution can be prevented from deteriorating.
JP62244310A 1987-09-30 1987-09-30 Noise eliminating circuit Pending JPS6489764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62244310A JPS6489764A (en) 1987-09-30 1987-09-30 Noise eliminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62244310A JPS6489764A (en) 1987-09-30 1987-09-30 Noise eliminating circuit

Publications (1)

Publication Number Publication Date
JPS6489764A true JPS6489764A (en) 1989-04-04

Family

ID=17116831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62244310A Pending JPS6489764A (en) 1987-09-30 1987-09-30 Noise eliminating circuit

Country Status (1)

Country Link
JP (1) JPS6489764A (en)

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