JPS5528690A - Noise reduction circuit - Google Patents

Noise reduction circuit

Info

Publication number
JPS5528690A
JPS5528690A JP10329078A JP10329078A JPS5528690A JP S5528690 A JPS5528690 A JP S5528690A JP 10329078 A JP10329078 A JP 10329078A JP 10329078 A JP10329078 A JP 10329078A JP S5528690 A JPS5528690 A JP S5528690A
Authority
JP
Japan
Prior art keywords
circuit
output
pulsive noise
noise
delay line
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.)
Granted
Application number
JP10329078A
Other languages
Japanese (ja)
Other versions
JPS6221308B2 (en
Inventor
Tetsuo Hanaoka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10329078A priority Critical patent/JPS5528690A/en
Publication of JPS5528690A publication Critical patent/JPS5528690A/en
Publication of JPS6221308B2 publication Critical patent/JPS6221308B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reject pulsive noise efficiently, by detecting the high band component more than a given level from the video signal and using the non-corelativity of pulsive noise.
CONSTITUTION: The video signal from the terminal 3A is inputted to the 1H delay line 302 and the high band pick up circuit 303 via the delay line 301. The output of the circuit 303 is delayed by one H period at the shift registers 305 and 306 respectively. After that, the signal from the terminal 3A is fed to the high band component pick up circuit 304. The output of the circuit 304, register 305 and monostable multivibrator 307 is inputted to the discrimination circuit 308 to discriminate the basis of pulsive noise or profile noise taking use of non-core-lativity of pulsive noise and the pulsive noise component-is picked up from the circuit 308. On the other hand, the output of the delay line 302 is fid to LPF 101 and HPF 102, and the pulsive noise component is removed from the output of HPF 102 at the gate circuit 309. The output of the circuit 309 is combined with the output of LPF 101 at the adder 104 via the core ring 310.
COPYRIGHT: (C)1980,JPO&Japio
JP10329078A 1978-08-23 1978-08-23 Noise reduction circuit Granted JPS5528690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10329078A JPS5528690A (en) 1978-08-23 1978-08-23 Noise reduction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10329078A JPS5528690A (en) 1978-08-23 1978-08-23 Noise reduction circuit

Publications (2)

Publication Number Publication Date
JPS5528690A true JPS5528690A (en) 1980-02-29
JPS6221308B2 JPS6221308B2 (en) 1987-05-12

Family

ID=14350156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10329078A Granted JPS5528690A (en) 1978-08-23 1978-08-23 Noise reduction circuit

Country Status (1)

Country Link
JP (1) JPS5528690A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583480A (en) * 1981-06-22 1983-01-10 アールシーエー　ライセンシング　コーポレーシヨン Noise detecting circuit
JPH01200783A (en) * 1988-02-03 1989-08-11 Olympus Optical Co Ltd Luminescent spot reduction circuit
JPH03136612A (en) * 1990-09-13 1991-06-11 Masasuke Hotsuta Household buddhist altar

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583480A (en) * 1981-06-22 1983-01-10 アールシーエー　ライセンシング　コーポレーシヨン Noise detecting circuit
JPH025353B2 (en) * 1981-06-22 1990-02-01 Rca Licensing Corp
JPH01200783A (en) * 1988-02-03 1989-08-11 Olympus Optical Co Ltd Luminescent spot reduction circuit
JPH03136612A (en) * 1990-09-13 1991-06-11 Masasuke Hotsuta Household buddhist altar

Also Published As

Publication number Publication date
JPS6221308B2 (en) 1987-05-12

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