KR960008789A - Digital data recording / playback apparatus and method - Google Patents

Digital data recording / playback apparatus and method Download PDF

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Publication number
KR960008789A
KR960008789A KR1019940021561A KR19940021561A KR960008789A KR 960008789 A KR960008789 A KR 960008789A KR 1019940021561 A KR1019940021561 A KR 1019940021561A KR 19940021561 A KR19940021561 A KR 19940021561A KR 960008789 A KR960008789 A KR 960008789A
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KR
South Korea
Prior art keywords
signal
digital
converting
parallel
converted
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KR1019940021561A
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Korean (ko)
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KR100300953B1 (en
Inventor
김기호
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김광호
삼성전자 주식회사
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Priority to KR1019940021561A priority Critical patent/KR100300953B1/en
Priority to JP03458495A priority patent/JP3681429B2/en
Publication of KR960008789A publication Critical patent/KR960008789A/en
Priority to US08/790,415 priority patent/US5768246A/en
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Publication of KR100300953B1 publication Critical patent/KR100300953B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof

Abstract

주파수영역 특성을 이용한 디지탈 데이타의 기록/재생장치 빛 방법을 공개한다. 그 장치는 외부에서 인가되는 디지탈 신호를 병렬로 변환하는 제1직/병렬 변환수단과, 재생시를 위해 미리 보상하는 보상수단과, 기록제어신호를 발생하는 기록제어수단과, 그 보상된 신호를 저장하는 저장수단과, 그 저장수단에 기록된 신호를 읽어 디지탈 신호로 변환하는 아날로그/디지탈 변환수단과, 그 변환된 디지탈 신호를 병렬로 변환하는 제2직/병렬 변환수단과, 주파수 영역의 신호로 변환하는 주파수영역 변환수단과, 그 주파수영역으로 변환된 신호로부터 원하는 신호를 검출하는 검출수단을 구비하고 또한, 그 방법을 제공함으로써 주파수 영역으로 변환된 블럭데이타를 블럭 단위로 검출하기 때문에 비선형성이 문제되지 않으며, 따라서 기록의 고밀도화가 가능하고 훨씬 더 낮은 클럭 주파수에서 동작을 하며, 또한 잉여비트 감소에 따른 순수 정보비트의 기록 비율을, 증가시킬수 있다는 효과가 있다.Disclosed is a light method for recording / reproducing digital data using frequency domain characteristics. The apparatus stores first serial / parallel conversion means for converting an externally applied digital signal in parallel, compensation means for compensating in advance for reproduction, recording control means for generating a recording control signal, and the compensated signal Storage means for performing the conversion, analog / digital conversion means for reading the signal recorded in the storage means and converting it into a digital signal, second serial / parallel conversion means for converting the converted digital signal in parallel, and a signal in the frequency domain. A frequency domain converting means for converting and a detecting means for detecting a desired signal from the signal converted into the frequency domain, and by providing the method, block data converted into the frequency domain is detected in units of blocks. This is not a problem, thus allowing for higher density of recordings, operating at much lower clock frequencies, and also reducing redundant bits. There is an effect that the recording rate of pure information bits can be increased.

Description

디지탈 데이타 기록/재생장치 및 방법Digital data recording / playback apparatus and method

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

제2도는 본 발명에 의한 디지탈 데이타 기록/재생장치를 설명하기 위한 블럭도를 도시한 것이다.2 is a block diagram for explaining a digital data recording / reproducing apparatus according to the present invention.

제3도는 제2도에 니타낸 본 발명에 의한 디지탈 데이타 기록/재생장치의 저장체의 데이타 기록 포맷을 설명하기 위한 도면이다.FIG. 3 is a diagram for explaining the data recording format of the storage body of the digital data recording / reproducing apparatus according to the present invention shown in FIG.

Claims (8)

디지탈 데이타의 기록/재생장치에 있어서, 외부에서 인가되는 디지탈 신호를 병렬로 변환하는 제1직/병렬변환수단; 상기 병렬로 변환된 신호를 보상하는 보상수단; 상기 보상된 신호를 입력받아 기록제어신호를 발생하는 기록제어수단; 상기 기록제어신호에 응답하여 상기 보상된 신호를 저장하는 저장수단; 상기 저장수단에 기록된 신호를 읽어 디지탈 신호로 변환하는 아날로그/디지탈 변환수단; 상기 변환된 디지탈 신호를 병렬로 변환하는 제2직/병렬 변환수단; 상기 제2직/병렬 변환수단으로부터 병렬로 변환된 신호를 주파수 영역의 신호로 변환하는 주파수영역 변환수단; 상기 주파수 영역으로 변환된 신호로부터 상기 외부에서 인가되는 디지탈신호를 검출하는 검출수단을 구비한 것을 특징으로 하는 디지탈 데이타 기록/재생장치.An apparatus for recording / reproducing digital data, comprising: first serial / parallel conversion means for converting an externally applied digital signal in parallel; Compensation means for compensating the signal converted in parallel; Recording control means for receiving the compensated signal and generating a recording control signal; Storage means for storing the compensated signal in response to the recording control signal; Analog / digital conversion means for reading the signal recorded in the storage means and converting it into a digital signal; Second serial / parallel conversion means for converting the converted digital signals in parallel; Frequency domain conversion means for converting a signal converted in parallel from the second serial / parallel conversion means into a signal in a frequency domain; And detection means for detecting a digital signal applied from the outside from the signal converted into the frequency domain. 제1항에 있어서, 상기 저장수단의 데이타 포맷을 비트동기 및 블럭동기; 복수개의 데이타 블럭; 및 블럭 에러체크 코드를 구비한 것을 특징으로 하는 디지탈 데이타 기록/재생장치.The data storage device of claim 1, further comprising: bit synchronization and block synchronization; A plurality of data blocks; And a block error check code. 제2항에 있어서, 상기 데이타 블럭은 데이타 비트 및 경게비트를 구비한 것을 특징으르 하는 디지탈 데이타 기록/재생장치.The digital data recording / reproducing apparatus according to claim 2, wherein the data block includes data bits and warning bits. 제2항에 있어서, 상기 제2직/병렬 변환기와 상기 주파수영역 변환수단 및 상기 검출수단은 상기 블럭동기를 검출하는 제어신호 발생수단의 제어신호에 응답하여 처리 단위를 결정하는 것을 특징으로 하는 디지탈 데이타 기록/재생장치.The digital apparatus according to claim 2, wherein the second serial / parallel converter, the frequency domain converting means, and the detecting means determine a processing unit in response to a control signal of a control signal generating means for detecting the block synchronization. Data recording / playback device. 제2항에 있어서, 상기 아날로그/디지탈 변환수단은 상기 비트동기를 검출하는 동기신호 발생기의 클럭 신호 주기로 샘플링하는 것을 특징으로 하는 디지탈 데이타 기록/재생장치.3. The digital data recording / reproducing apparatus according to claim 2, wherein the analog / digital converting means samples at a clock signal period of a synchronization signal generator for detecting the bit synchronization. 제1항에 있어서, 상기 저장수단과 상기 아날로그/디지탈 변환수단 사이에 이득가변증폭수단과 필터를 더 구비한 것을 특징으로 하는 디지탈 데이타 기록/재생장치.The digital data recording / reproducing apparatus according to claim 1, further comprising a gain variable amplifying means and a filter between said storage means and said analog / digital converting means. 제6항에 있어서, 상기 이득가변증폭수단은 상기 변환된 디지탈 신호 혹은 상기 샘플된 신호로부터 이득 특성을 검출하는 자동이득제어수단의 제어에 응답하여 이득율이 결정되는 것을 특징으로 하는 디지탈 데이타기록/재생장치.The digital data recording / recording method as claimed in claim 6, wherein the gain variable amplifying means determines a gain ratio in response to control of an automatic gain control means for detecting gain characteristics from the converted digital signal or the sampled signal. Playback device. 디지탈 데이타 기록/재생방법에 있어서, 외부 디지탈 신호를 병렬로 변환하는 직/병렬 변환하는 단계; 상기 병렬로 변환된 신호를 재생시 오류를 방지하기 위해 보상하는 단계; 상기 보상된 신호를 기록하고 이를 재생하는 단계; 상기 재생된 신호를 디지탈 신호로 변환하는 아날로그/디지탈변환 단계; 상기 변환된 디지탈신호를 병렬로 변환하는 직/병렬 변환하는 단계; 상기 병렬로 변환된 신호를 주파수 영역의 신호로 변환하는 단계; 상기 주파수 영역으로 변환된 신호로부터 상기 외부 디지탈 신호를 검출하는 단계를 구비한 것을 특징으로 하는 디지탈 데이타의 기록/재생방법.A digital data recording / reproducing method, comprising: serial / parallel conversion for converting external digital signals in parallel; Compensating for reproducing the parallel-converted signal to prevent errors in reproduction; Recording and reproducing the compensated signal; An analog / digital conversion step of converting the reproduced signal into a digital signal; Serial / parallel conversion of converting the converted digital signals in parallel; Converting the parallel-converted signal into a signal in a frequency domain; And detecting the external digital signal from the signal converted into the frequency domain. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940021561A 1994-08-30 1994-08-30 Device for recording/reproducing digital data and method therefor KR100300953B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019940021561A KR100300953B1 (en) 1994-08-30 1994-08-30 Device for recording/reproducing digital data and method therefor
JP03458495A JP3681429B2 (en) 1994-08-30 1995-01-30 Digital data recording / reproducing apparatus and method
US08/790,415 US5768246A (en) 1994-08-30 1997-01-30 Method and apparatus for recording and reproducing digital data using frequency domain conversion and detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940021561A KR100300953B1 (en) 1994-08-30 1994-08-30 Device for recording/reproducing digital data and method therefor

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KR960008789A true KR960008789A (en) 1996-03-22
KR100300953B1 KR100300953B1 (en) 2001-10-22

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JPH0877716A (en) 1996-03-22
JP3681429B2 (en) 2005-08-10
KR100300953B1 (en) 2001-10-22

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