KR970003186A - Resonant frequency level control method of optical disc and its device - Google Patents

Resonant frequency level control method of optical disc and its device Download PDF

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Publication number
KR970003186A
KR970003186A KR1019950017552A KR19950017552A KR970003186A KR 970003186 A KR970003186 A KR 970003186A KR 1019950017552 A KR1019950017552 A KR 1019950017552A KR 19950017552 A KR19950017552 A KR 19950017552A KR 970003186 A KR970003186 A KR 970003186A
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KR
South Korea
Prior art keywords
voice signal
filter
resonant frequency
frequency band
level
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Application number
KR1019950017552A
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Korean (ko)
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KR0145482B1 (en
Inventor
이주용
Original Assignee
김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950017552A priority Critical patent/KR0145482B1/en
Publication of KR970003186A publication Critical patent/KR970003186A/en
Application granted granted Critical
Publication of KR0145482B1 publication Critical patent/KR0145482B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/12—Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 광디스크의 공진주파수레벨 조절방법 및 그 장치에 관한 것으로서, 공진주파수에 의해 재생장치에 진동이 발생되더라도 항상 안정된 재생동작을 수행할 수 있도록 하기 위하여, 최종출력되는 음성 신호 중 상기 필터에 의해 필터링된 공진주파수대역의 음성신호레벨과 초기 설정된 기준레벨을 비교하여, 공진주파수대역의 음성신호레벨이 기준레벨보다 큰 경우에는 공진주파수대역의 음성신호를 필터링하여 공진주파수대역이 제거된 음성신호가 출력되도록 하였다.The present invention relates to a resonant frequency level control method and an apparatus of an optical disc, in order to always perform a stable reproducing operation even if vibration occurs in the reproducing apparatus by the resonant frequency, by the filter of the final output audio signal When the voice signal level of the filtered resonant frequency band is compared with the initially set reference level, and the voice signal level of the resonant frequency band is larger than the reference level, the voice signal from which the resonant frequency band is removed is filtered by filtering the voice signal of the resonant frequency band. Output.

또한, 전술한 방법을 수행하도록 하기 위하여, 공진주파수대역의 음성신호를 필터링하는 필터; 및 필터에 의해 필터링된 음성신호레벨과 초기 설정된 기준레벨을 비교하여 비교된 결과에 따라 제어신호를 출력하여 필터의 필터링 동작을 제어하는 비교기를 구비하였다.In addition, to perform the above-described method, a filter for filtering a voice signal of the resonant frequency band; And a comparator for comparing the voice signal level filtered by the filter with an initially set reference level and outputting a control signal to control the filtering operation of the filter.

Description

광디스크의 공진주파수레벨 조절방법 및 그 장치Resonant frequency level control method of optical disc and its device

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

제1도는 본 발명에 의한 광디스크의 공진주파수레벨 조절장치의 개략적 블럭도이다.1 is a schematic block diagram of an apparatus for adjusting the resonant frequency level of an optical disc according to the present invention.

Claims (4)

공진주파수대역의 음성신호를 필터링하는 필터와, 필터에 의해 필터링된 음성신호레벨과 기준레벨을 비교하는 비교기를 구비하는 광디스크의 공진주파수레벨 조절방법에 있어서; 최종 출력되는 음성신호 중 상기 필터에 의해 필터링된 공진주파수 대역의 음성신호레벨과 초기 설정된 기준레벨을 비교하여, 공진주파수 대역의 음성신호레벨이 기준레벨보다 큰 경우에는 공진주파수대역의 음성신호를 필터링하여 공진주파수대역이 제거된 음성신호가 출력되도록 한 광디스크의 공진주파수레벨 조절방법.A resonant frequency level adjusting method of an optical disc comprising: a filter for filtering a voice signal in a resonant frequency band; and a comparator for comparing the voice signal level filtered by the filter with a reference level; The voice signal of the resonance frequency band filtered by the filter among the finally output voice signal is compared with the initially set reference level. When the voice signal level of the resonance frequency band is larger than the reference level, the voice signal of the resonance frequency band is filtered. Resonance frequency level control method of the optical disk to output the audio signal from which the resonance frequency band is removed. 공진주파수대역의 음성신호를 필터링하는 필터; 및 상기 필터에 의해 필터링된 음성신호레벨과 초기 설정된 기준레벨을 비교하여 비교된 결과에 따라 제어신호를 출력하여 상기 필터의 필터링동작을 제어하는 비교기를 구비하는 광디스크의 공진주파수레벨 조절장치.A filter for filtering a voice signal in a resonant frequency band; And a comparator for controlling the filtering operation of the filter by outputting a control signal according to a result of comparing the voice signal level filtered by the filter with an initially set reference level. 제1항에 있어서, 상기 필터와 상기 비교기 사이에, 상기 필터에 의해 필터링된 공진주파수대역의 음성신호를 정류하여 직류성분의 음성신호레벨을 검출하는 정류부를 더 구비하는 것을 특징으로 하는 광디스크의 공진주파수레벨 조절장치.2. The resonance of an optical disc according to claim 1, further comprising a rectifier between the filter and the comparator for rectifying a voice signal of a resonant frequency band filtered by the filter to detect a voice signal level of a DC component. Frequency level control device. 제1항에 있어서, 상기 비교기로부터 출력된 제어신호에 의해 온-오프제어되어 상기 필터의 필터링동작을 제어하는 스위치를 더 구비하는 것을 특징으로 하는 광디스크의 공진주파수레벨 조절장치.The apparatus of claim 1, further comprising a switch configured to control the filtering operation of the filter by being on-off controlled by a control signal output from the comparator. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017552A 1995-06-26 1995-06-26 Optical disc resonance frequency level control device KR0145482B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950017552A KR0145482B1 (en) 1995-06-26 1995-06-26 Optical disc resonance frequency level control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950017552A KR0145482B1 (en) 1995-06-26 1995-06-26 Optical disc resonance frequency level control device

Publications (2)

Publication Number Publication Date
KR970003186A true KR970003186A (en) 1997-01-28
KR0145482B1 KR0145482B1 (en) 1998-07-15

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KR1019950017552A KR0145482B1 (en) 1995-06-26 1995-06-26 Optical disc resonance frequency level control device

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