KR970009201A - Pop Noise Reduction Device for Multimedia Devices - Google Patents

Pop Noise Reduction Device for Multimedia Devices Download PDF

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Publication number
KR970009201A
KR970009201A KR1019950021952A KR19950021952A KR970009201A KR 970009201 A KR970009201 A KR 970009201A KR 1019950021952 A KR1019950021952 A KR 1019950021952A KR 19950021952 A KR19950021952 A KR 19950021952A KR 970009201 A KR970009201 A KR 970009201A
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KR
South Korea
Prior art keywords
audio
pop noise
power
signal
output
Prior art date
Application number
KR1019950021952A
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Korean (ko)
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KR0153182B1 (en
Inventor
원용명
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구자홍
Lg 전자 주식회사
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Priority to KR1019950021952A priority Critical patent/KR0153182B1/en
Publication of KR970009201A publication Critical patent/KR970009201A/en
Application granted granted Critical
Publication of KR0153182B1 publication Critical patent/KR0153182B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)

Abstract

본 발명은 씨디를 이용하는 멀티미디어기기에 관한 것으로서, 종래에는 시스템 각부에 동작전원 인가시 오디오 채널상에 팝 노이즈가 발생하는데 이를 제거하기 위한 노이즈제거신호는 일정시간이 경과한 후에, 즉 시스템 제어부에 동작전원이공급된 다음 상기 시스템 제어부가 I/O부를 제어하므로서, 시간적으로 너무 늦게 되어 팝 노이즈를 완전히 제거하지 못하는 문제점이 있었다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia device using a CD. In the related art, pop noise is generated on an audio channel when an operation power is applied to each part of a system. Since the system control unit controls the I / O unit after the power is supplied, there is a problem that it is too late in time to completely eliminate pop noise.

따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 팝 노이즈를 발생시키는 상승전원의 발생을 시스템 전원의 발생보다 지연시키도록 하는 리셋트(RESET)신호에 동기시키고, 초기 전원인 시스템 전원을 팝 노이즈 제거부에 적용하므로서,시스템 리세트 신호의 제어에 따라 지연 발생되면서 증폭부에서 출력과 동시에 발생되는 팝 노이즈를 상기 팝 노이즈 제거부에 공급되는 시스템 리세트 신호에 의해 충분히 제거시키는 멀티미디어기기의 팝 노이즈 제거장치이다.Therefore, in order to solve the above problem, the present invention synchronizes the generation of the rising power generating the pop noise with the RESET signal for delaying the generation of the system power and generates the initial power supply. Applied to the remover, the pop noise of the multimedia apparatus that sufficiently removes the pop noise generated at the same time as the output from the amplifier by the system reset signal supplied to the pop noise remover while being delayed under the control of the system reset signal. It is a removal device.

Description

멀티미디어기기의 팝노이즈 제거장치Pop Noise Reduction Device for Multimedia Devices

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명 팝노이즈 제거장치의 구성을 보인 블럭도.Figure 3 is a block diagram showing the configuration of the present invention noise reduction apparatus.

Claims (3)

일정전원의 인가에 따라 시스템 각부에 동작전원을 공급하는 전원발생부(11)와, 상기 전원발생부(11)에서 출력된 동작전원에 따라 시스템 각부에 로직(LOGIC)안정화용 리세트(RESET)신호를 출력시키는 시스템 리세트부(12)와, 상기 전원발생부(11)에서 발생되어 출력된 동작전원에 따라 오디오/비디오 신호를 발생시키는 오디오/비디오 신호발생부(13)와, 시스템 리세트부(12)에서 출력된 리세트신호에 따라 오디오/비디오 신호발생부(13)에서 발생된 오디오/비디오 신호의 데이타를 처리하는 오디오/비디오 데이타 처리부(14)와,상기 오디오/비디오 데이타 처리부(14)에서 데이타 처리되어 출력된 오디오/비디오 신호의 디지탈을 아날로그로 변환출력시키는 오디오 및 비디오 D/A변환부(15)(16)와, 상기 오디오 D/A변환부(15)에서 변환되어 출력된 오디오 신호를 증폭하여 제1 및 제2오디오 채널로 출력시키는 제1 및 제2증폭부(17)(18)와, 상기 비디오 D/A변환부(16)에서 변환되어 출력된 비디오 신호를 필터링하여 출력시키는 비디오 신호 필터부(19)와, 전원발생부(11)에서 출력된 동작전원 및 시스템 리세트부(12)에서 출력된 리세트신호에 따라 상기 제1 및 제2증폭부(17)(18)에서 증폭출력된 오디오신호의 팝 노이즈를 제거시키는 팝 노이즈 제거부(20)로 구성된 멀티미디어기기의 팝 노이즈 제거장치.A power generation unit 11 for supplying operation power to each system part upon application of a constant power supply, and a reset for logic stabilization to each system part according to the operating power output from the power generation unit 11. A system reset unit 12 for outputting a signal, an audio / video signal generator 13 for generating an audio / video signal according to the operating power generated by the power generator 11, and a system reset; An audio / video data processor 14 for processing data of an audio / video signal generated by the audio / video signal generator 13 according to the reset signal output from the unit 12, and the audio / video data processor ( 14) an audio and video D / A converter 15 and 16 for converting and outputting a digital signal of an audio / video signal which has been processed and outputted by the data, and is output by being converted by the audio D / A converter 15. Amplified audio signal First and second amplifiers 17 and 18 for outputting the first and second audio channels, and a video signal for filtering and outputting the video signal converted and output by the video D / A converter 16. Amplification in the first and second amplifiers 17 and 18 according to the filter unit 19, the operating power output from the power generator 11 and the reset signal output from the system reset unit 12. Pop noise removing device of the multimedia device consisting of a pop noise removing unit 20 for removing the pop noise of the output audio signal. 제1항에 있어서, 전원발생부(11)는 시스템의 내부처리 기능작용을 하는 각 시스템(12)(14)(15)(16)(20)에 시스템전원을 공급하는 시스템 전원발생단(21)과, 상기 시스템 전원발생단(21)보다 높은 상승전원을 각 시스템(13)(17)(18)(19)에 공급하는 입출력 상승전원 발생단(22)으로 구성된 것을 특징으로 하는 멀티미디어기기의 팝 노이즈제거장치.The system power generator 21 according to claim 1, wherein the power generator 11 supplies system power to each of the systems 12, 14, 15, 16, and 20, which function as an internal processing function of the system. And an input / output rising power generation stage 22 for supplying rising power higher than the system power generation stage 21 to each of the systems 13, 17, 18, and 19. Pop noise canceller. 제1항에 있어서, 팝 노이즈 제거부(20)는 입력되는 시스템 전원 및 시스템 리세트 신호에 따라 팝 노이즈제어신호를 발생시키는 팝 노이즈 제어신호 발생단(23)과, 상기 팝 노이즈 제어신호 발생단(23)에서 출력된 팝 노이즈 제어신호를 반전시켜 제1 및 제2오디오 채널상에서 발생되는 팝 노이즈를 정확한 타이밍으로 제거시키는 제1 및 제2오디오채널 제어단(24)(25)로 구성된 것을 특징으로 하는 멀티미디어기기의 팝 노이즈 제거장치.The pop noise control signal generator (23) of claim 1, wherein the pop noise remover (20) generates a pop noise control signal (23) for generating a pop noise control signal according to an input system power supply and a system reset signal. And a first and second audio channel control stages 24 and 25 for inverting the pop noise control signal output from 23 to remove pop noise generated on the first and second audio channels at an accurate timing. Noise reduction device for popping multimedia equipment. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950021952A 1995-07-24 1995-07-24 Apparatus for eliminating pop noise in multi-media apparatus KR0153182B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950021952A KR0153182B1 (en) 1995-07-24 1995-07-24 Apparatus for eliminating pop noise in multi-media apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950021952A KR0153182B1 (en) 1995-07-24 1995-07-24 Apparatus for eliminating pop noise in multi-media apparatus

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KR970009201A true KR970009201A (en) 1997-02-24
KR0153182B1 KR0153182B1 (en) 1998-11-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030007274A (en) * 2002-11-16 2003-01-23 최현용 Time delay remote controller and method thereof
KR102524228B1 (en) 2021-12-31 2023-04-21 주식회사 마이크로원 Belt cleaning apparatus for removing dust particles from belt-conveyor and dust collecting system using the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101675271B1 (en) 2015-10-30 2016-11-14 서우테크놀로지 주식회사 Grinder and semiconductor strip grinder with the same
KR101721833B1 (en) 2016-03-04 2017-03-31 서우테크놀로지 주식회사 Polishing unit and semiconductor strip grinder with the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030007274A (en) * 2002-11-16 2003-01-23 최현용 Time delay remote controller and method thereof
KR102524228B1 (en) 2021-12-31 2023-04-21 주식회사 마이크로원 Belt cleaning apparatus for removing dust particles from belt-conveyor and dust collecting system using the same

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KR0153182B1 (en) 1998-11-16

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