KR940016176A - Track Jump / Cheek Control Device and Method by Position Error Correction - Google Patents

Track Jump / Cheek Control Device and Method by Position Error Correction Download PDF

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Publication number
KR940016176A
KR940016176A KR1019920023635A KR920023635A KR940016176A KR 940016176 A KR940016176 A KR 940016176A KR 1019920023635 A KR1019920023635 A KR 1019920023635A KR 920023635 A KR920023635 A KR 920023635A KR 940016176 A KR940016176 A KR 940016176A
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KR
South Korea
Prior art keywords
signal
tracking error
peak
peak value
track jump
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KR1019920023635A
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Korean (ko)
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KR950000127B1 (en
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박성철
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김주용
현대전자산업 주식회사
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Priority to KR1019920023635A priority Critical patent/KR950000127B1/en
Publication of KR940016176A publication Critical patent/KR940016176A/en
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Publication of KR950000127B1 publication Critical patent/KR950000127B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Abstract

본 발명은 광 디스크 드라이브의 트랙 점프( TRACK JUMP) 및 목표 트랙을 찾아가는 시크(SEEK) 동작 시 발생하는 위치 오차 보정을 위한 트랙 점프/시크 제어 장치 및 방법에 관한 것으로, 트랙을 크로스하는 트래킹 에러 신호를 입력하여 트래킹 에러 피크신호를 검출하는 제 1 피크치 검출 수단, 상기 제 1 피크치 검출수단의 출력신호를 클럭단으로 인가받고, 클리어 신호 단자로의 클리어 신호를 인가받아 트래킹 에러 피크치 신호를 출력하는 플립-플롭, 및 합산 신호(SUM)를 인가받아 합산 신호의 피크치를 검출하여 디스크 랜드 신호와 디스크 그루브 신호를 출력하는 피크 검출 수단을 구비하며, 트랙 점프 및 시크시 발생하는 위치오차의 보정을 보다 정확하게 행하는 것이 가능하므로 정확한 트랙 점프 및 시크 동작이 가능하게 되는 효과가 있다.The present invention relates to a track jump / seek control apparatus and method for correcting a position error occurring during a track jump and an seek operation of a target track of an optical disc drive. A first peak detection means for detecting a tracking error peak signal by inputting a signal, a flip for receiving an output signal of the first peak value detection means at a clock terminal and a clear signal to a clear signal terminal to output a tracking error peak value signal; A peak detection means for receiving a flop and a sum signal SUM to detect peak values of the sum signal and output a disc land signal and a disc groove signal, and more accurately correct the position error occurring during track jump and seek. Since this can be done, there is an effect that accurate track jump and seek operations are possible.

Description

위치 오차 보정에 의한 트랙 점프/시크 제어 장치 및 방법Track Jump / Cheek Control Device and Method by Position Error Correction

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

제 1 도는 본 발명을 설명하기 위한 개략적인 원리 설명도, 제 2 도는 본 발명에 따른 블럭 구성도, 제 3 도는 본 발명에 따른 타이밍도, 제 4 도는 트래킹 에러 피크치 검출부의 상세 회로도.1 is a schematic diagram for explaining the present invention, FIG. 2 is a block diagram according to the present invention, FIG. 3 is a timing diagram according to the present invention, and FIG. 4 is a detailed circuit diagram of a tracking error peak value detection unit.

Claims (4)

트랙을 크로스 하는 트래킹 에러 신호를 입력하여 트래킹 에러 피크 신호를 검출하는 제 1 피크 검출 수단(1), 상기 제 1피크치 검출 수단(1)의 출력신호를 클럭단으로 인가받고, 클리어 신호 단자로의 클리어 신호를 인가받아 트래킹 에러 피크치 신호를 출력하는 플립-플롭(3), 및 합산 신호(SUM)를 인가받아 합산 신호의 피크치를 검출하여 디스크 랜드 신호와디스크 그루브 신호를 출력하는 피크치 검출수단(2)을 구비하는 것을 특징으로 하는 위치 오차 보정에 의한 트랙 점프/시크 제어 장치.A first peak detecting means (1) for detecting a tracking error peak signal by inputting a tracking error signal that crosses a track, and an output signal of the first peak value detecting means (1) are applied to the clock terminal and sent to the clear signal terminal. A flip-flop 3 that receives a clear signal and outputs a tracking error peak value signal, and a peak value detecting means 2 that receives a sum signal SUM to detect peak values of the sum signal and outputs a disc land signal and a disc groove signal 2 Track jump / seek control device by the position error correction, characterized in that it comprises a). 제 1 항에 있어서, 상기 제 1 피크치 검출 수단(1)은, 트래킹 에러 신호를 인가받는 증폭수단, 상기 증폭수단으로 부터의출력신호를 미분하는 미분 회로 수단(7), 상기 미분 회로 수단(7)의 미분된 출력을 인가받아 트래킹 에러 신호의 피크치를 비교 출력하기 위한 비교 수단(8)을 구비하고 있는 것을 특징으로 하는 위치 오차 보정에 의한 트랙 점프/시크 제어장치.2. The circuit according to claim 1, wherein said first peak value detecting means (1) comprises: amplifying means for receiving a tracking error signal, differential circuit means (7) for differentiating an output signal from said amplifying means, and said differential circuit means (7). And a comparison means (8) for receiving the differential output of the < RTI ID = 0.0 > a) < / RTI > to compare and output the peak value of the tracking error signal. 제 1 항에 있어서, 상기 제 2 피크치 검출 수단(2)은, 합산 신호(SUM)를 다이오드의 방향에 따라 인가하여 증폭하는 제 1증폭 수단(9), 상기 제 1 증폭 수단(9)의 증폭된 신호를 미분하기 위한 미분 회로 수단(10), 상기 미분 회로 수단(10)의 미분된 출력을 인가받아 트래킹 에러 신호의 피크치를 비교 출력하기 위한 비교 수단(11)을 구비하고 있는 것을 특징으로하는 위치 오차 보정에 의한 트랙 점프/시크 제어 장치.2. The second peak value detecting means (2) according to claim 1, wherein the second peak value detecting means (2) comprises: first amplifying means (9) and amplifying of the first amplifying means (9) for applying and amplifying a sum signal (SUM) along the direction of the diode. Characterized in that it comprises a differential circuit means (10) for differentiating the corrected signal and a comparison means (11) for receiving the differential output of the differential circuit means (10) and comparing the peak values of the tracking error signals. Track jump / seek control by position error correction. 제 1, 2 피크치 검출 수단(1, 2), 플립-플롭(3)을 구비한 위치 오차 보정에 의한 트랙 점프/시크 제어 장치의 운용 방법에 있어서 ; 전원 공급으로 시스팀이 시작되면 포커스 서보(도시하지 않음)만을 온하고 트래킹 에러 피크치 시간을 측정하는 제 1 단계(16, 17), 상기 제 1 단계(16, 17) 수행 후, 디스크 랜드 신호와 디스크 그루브 신호가 하이인가를 조사하여 하이가 아니면 트래킹 에러의 시간을 측정하는 과정 이하를 수행하고 하이이면 각각의 기울기를 구하는 제 2 단계(18내지 21), 상기 제 2 단계(18 내지 21) 수행 후, 상기 랜드부와 그루브에서 측정한 트래킹 에러 기울기의 비율을 비교하고, 드라이버에서 트래킹 에러 기준 신호타입을 판단하여 트랙 점프 및 시크시 필요한 트래킹 에러 기준 신호 타입을 선택하고 종료하는 제 3 단계(22, 23)로 이루어지는 것을 특징으로 하는 위치 오차 보정에 의한 트랙 점프/시크 제어 장치의 운용 방법.In the operating method of the track jump / seek control apparatus by the position error correction provided with the 1st, 2nd peak value detection means (1, 2) and the flip-flop (3); When the system is started by the power supply, after performing the first steps 16 and 17 and the first steps 16 and 17 that measure only the tracking servo peak time and turn on the focus servo (not shown), the disc land signal and the disc Investigate whether the groove signal is high to determine the time of the tracking error if it is not high, and if it is high, after each of the second steps (18 to 21) and the second steps (18 to 21) of obtaining the respective slopes, And comparing the ratio of the tracking error slope measured in the land part and the groove, and determining the tracking error reference signal type by the driver to select and terminate the tracking error reference signal type required for track jumping and seeking (22, 22). 23) A method of operating a track jump / seek control by the position error correction, characterized in that consisting of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920023635A 1992-12-08 1992-12-08 Track jump/seek control device & method of position error rivision KR950000127B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920023635A KR950000127B1 (en) 1992-12-08 1992-12-08 Track jump/seek control device & method of position error rivision

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Application Number Priority Date Filing Date Title
KR1019920023635A KR950000127B1 (en) 1992-12-08 1992-12-08 Track jump/seek control device & method of position error rivision

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KR940016176A true KR940016176A (en) 1994-07-22
KR950000127B1 KR950000127B1 (en) 1995-01-10

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