KR960030132A - 광 디스크 시스템 - Google Patents
광 디스크 시스템 Download PDFInfo
- Publication number
- KR960030132A KR960030132A KR1019960001556A KR19960001556A KR960030132A KR 960030132 A KR960030132 A KR 960030132A KR 1019960001556 A KR1019960001556 A KR 1019960001556A KR 19960001556 A KR19960001556 A KR 19960001556A KR 960030132 A KR960030132 A KR 960030132A
- Authority
- KR
- South Korea
- Prior art keywords
- assembly
- lens
- disc
- medium
- light
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims abstract 30
- 230000007246 mechanism Effects 0.000 claims 33
- 238000000034 method Methods 0.000 claims 9
- 238000012544 monitoring process Methods 0.000 claims 9
- 238000001514 detection method Methods 0.000 claims 8
- 238000005070 sampling Methods 0.000 claims 5
- 239000003990 capacitor Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 claims 3
- 238000000926 separation method Methods 0.000 claims 3
- 230000004308 accommodation Effects 0.000 claims 2
- 230000002401 inhibitory effect Effects 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 239000002991 molded plastic Substances 0.000 claims 2
- 229920002635 polyurethane Polymers 0.000 claims 2
- 239000004814 polyurethane Substances 0.000 claims 2
- 229920002379 silicone rubber Polymers 0.000 claims 2
- 239000004945 silicone rubber Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000010606 normalization Methods 0.000 claims 1
- 238000009877 rendering Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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Abstract
광 디스크 시스템은 초점 맞춤 기구와 트랙킹 기구를 포함하고, 이들 기구들은 서보 에러 신호를 발생하는 전자 회로를 갖는 피드백 루프에 의해 제어된다. 이 에러 신호는 초점 맞춤 기구와 트랙킹 기구의 정정을 행하는 패드백 루프에서 전달된다. 광 디스크 시스템은 서보 루프 전달함수와 에러 신호를 갖는 서보 루프를 포함하는 디지탈 선행/지체 보상 회로 어셈블리를 구비한다. 이 회로 어셈블리는 소정의 샘플링 주파수보다 작은 기계적 공진 주파수를 갖는 모터 및 액츄에이터와 서보 루프를 안정화시키는 보상 회로를 포함한다. 서보 루프의 에러 신호는 소정 샘플링 주파수로 샘플된다. 정보 신호로의 에러 신호의 정규화는 샘플링 중에 일어난다. 보상회로는 단일 선행과 복소 지체를 포함하는 보상 전달 함수를 가져 노치를 갖는 노치 필터를 생성한다. 보상 전달 함수는 노치는 소정의 샘플링 주파수의 대략 1/2 주파수에서 일어나서 그에 의해 서보 루프 전달 함수에서의 기계적 공진 주파수의 진폭을 감소시키도록 공식화된다. 광 디스크 시스템은 또한 진동 분리와 열 팽창의 수용을 위한 기계적 분리기, 저항이 증가된 탱크 회로를 갖는 발진기, 개선된 초점 캡쳐시스템, 및 저장 매체에서의 블랭크 섹터를 식별하는 수단을 포함한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 제1도의 디스크 드라이브에서 드라이브 하우징이 제거된 상면도, 제5도는 제1도의 디스크 드라이브의 전자 장치에 대한 시스템 블록도.
Claims (28)
- 초점 맞춤 기구와 트랙킹 기구를 갖고 상기 기구들은 피드백 루프에 의해 제어되는 유형의 광디스크 시스템에 있어서, 상기 피드백 루프는 서보 에러 신호를 발생하는 전자회로로서, 상기 서보 에러 신호는 피드백 루프에서 통신되어 상기 초점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자회로를 구비하는 것을 특징으로 하는 광디스크 시스템.
- 서보 루프 전달함수와 에러신호를 갖고 위치정함 어플리케이션에 적합한 서보 루프를 포함하는 디지탈 선행/지체 보상회로 어셈블리에 있어서, 소정의 샘플링 주파수보다 작은 기계적 공징 주파수를 갖고, 상기 서보 루프의 에러 신호는 상기 소정 샘플링 주파수로 샘플되는 모터 혹은 액츄에이터, 및 상기 서보 루프를 안정화시키는 보상회로로서, 상기 보상회로는 단행 선행과 복소 지체를 포함하는 보상 전달 함수를 가져 노치를 갖는 노치 필터를 생성하고, 상기 보상 전달 함수는 상기 노치 필터의 상기 노차가 대략 소정 샘플 주파수의 대략 1/2에서 발생하도록 공식화되어 상기 서보 루프 전달함수에서의 상기 기계적 공진 주파수의 진폭을 감소시키는 보상회로를 구비하는 것을 특징으로 하는 디지탈 선행/지체 보상 회로 어셈블리.
- 광 드라이브 시스템에 있어서, 광 어셈블리, 상기 광 어셈블리에 광을 전송할 수 있는 광원, 상기 광 어셈블리와 각 정보저장 매체 사이에서 상기 광원으로부터의 광을 지향시키는 대물렌즈 서브어셈블리, 상기 대물렌즈 서브어셈블리에 배치된 대물렌즈, 액츄에이터 어셈블리로서, 상기 액츄에이터 어셈블리에 관한 상대적 이동을 위해 상기 대물 렌즈 서브어셈블리를 서스펜드하는 액츄에이터 어셈블리, 상기 액츄에이터 어셈블리에 관한 트랙킹 방향으로 상기 대물렌즈 서브어셈블리를 이동시키는 제1서보 모터, 상기 액츄에이터 어셈블리에 관한 초점 맞춤 방향으로 상기 대물렌즈 서브어셈블리를 이동시키는 제2서보 모터, 각 매체에 관한 트랙킹 방향으로 상기 액츄에이터 어셈블리는 이동시키는 제3서보 모터, 상기 제1, 제2 및 제3서보 모터를 제어하는 제1전자수단, 상기 대물렌즈 서브어셈블리에 관한 각 매체를 이동시키고, 각 매체를 지지하는 서브 어셈블리를 갖는 모터, 각 매체로부터 복귀하는 광경로에 배치된 광검출기, 상기 광검출기의 출력신호에 반응하여 각 매체로부터 복귀하는 상기 광에 반송된 정보를 디코드하는 제2전자수단, 상기 광원이 제1강도 레벨로 발광하도록 하여 각 매체상에 정보를 인코드하고 인코드된 정보를 제2강도레벨로 판독하는 제3전자수단, 각 매체상에 저장 가능한 데이터를 받는 데이터 수신수단, 상기 데이터 수신수단에 반응하여 상기 데이터가 소정 포맷으로 저장되도록 나타내고, 또한 데이터를 상기 제3전자수단에 지향시키는 데이터 인코딩 수단, 각 매체의 부분상에 자계를 발생하고 상기 제3전자수단과 상기 광원과 협력하여 각 매체에 정보의 기록 및 소거를 행하는 자계발생기, 상기 모터의 상기 허브 어셈블리에 각 매체를 제거가능하게 배치되는 카트리지 로딩 어셈블리, 상기 제1전자 수단에 연결되고 각 매체로부터 복귀하는 광경로에 배치되어 각 매체에 관한 상기 대물렌즈의 위치에 따라 변하는 상기 복귀광의 특성을 검출하는 서보 에러 검출수단, 및 상기 광드라이브 시스템의 구성요소를 서로에 관해 배치하는 하우징 구조부를 구비하는 것을 특징으로 하는 광드라이브시스템.
- 광드라이브시스템에 있어서, 광어셈블리, 상기 광어셈블리에 광을 전송할 수 있는 광원, 상기 광어셈블리와 각 정보 저장 매체 사이에서 상기 광원으로부터의 광을 지향시키는 대물렌즈 서브어셈블리, 상기 대물렌즈 서브어셈블리에 배치된 대물렌즈, 각 매체로부터 복귀하는 광경로에 배치되고 각 매체로부터의 전체수광을 측정하는 광검출수단, 액츄에이터 어셈블리로서, 상기 액츄에이터 어셈블리에 관한 상대적 이동을 위해 상기 대물렌즈 서브 어셈블리를 서스펜드하는 액츄에이터 어셈블리, 쿼드합 신호를 감시하는 수단, 상기 액츄에이터 어셈블리에 관한 트랙킹 방향으로 상기 대물렌즈 서브어셈블리를 이동시키고, 초점 캡쳐 동안 상기 대물렌즈를 제1위치로 이동시키고, 최대 쿼드합 신호를 탐색하는 동안 상기 렌즈를 상기 제1위치로부터 멀리 판독되는 각 매체를 향하여 이동시키고, 상기 렌즈를 다시 각 매체로부터 멀리 이동시키는 제1서보 모터, 상기 액츄에이터 어셈블리에 관한 초점맞춤 방향으로 상기 대물렌즈 서브어셈블리를 이동시키는 제2서보 모터, 각 매체에 관한 트랙킹 방향으로 상기 액츄에이터 어셈블리를 이동시키는 제3서보 모터, 상기 제1, 제2, 및 제3서보 모터를 제어하는 제1전자수단, 상기 대물렌즈 서브 어셈블리에 관해 각 매체를 이동시키고, 각 매체를 지지하는 표면을 갖는 모터, 상기 광 검출 수단의 출력신호에 반응하여 각 매체로부터 복귀하는 상기 광에 반송된 정보를 디코드하는 제2전자수단, 상기 광원이 제1강도 레벨로 발광하도록 하여 각 매체상에 정보를 인코드하고 인코드된 정보를 제2강도레벨로 판독하는 제3전자수단, 각 매체상에 저장가능한 데이터를 받는 데이터 수신수단, 상기 데이터 수신수단에 반응하여 상기 데이터가 소정 포맷으로 저장되도록 나타내고, 또한 데이터를 상기 제3전자수단에 지향시키는 데이터 인코딩 수단, 상기 제3전자수단과 협력하여 각 매체상에 정보를 기록하는 기록수단, 상기 모터의 상기 표면에 각 매체를 제거가능하게 배치하는 카트리지 로딩 어셈블리, 상기 제1전자수단에 연결되고 각 매체로부터 복귀하는 광경로에 배치되어 상기 전체광이 측정된 1/2 피크치를 초과하는 때를 결정하고, 상기 쿼드합 신호가 1/2 피크 진폭을 초과하는 때를 결정하는 제1영교차를 탐색하고, 상기 쿼드합 신호가 1/2 피크 진폭을 초과할 때 상기 제1전자수단이 상기 제2서보모터에 의한 초점의 클로즈를 지시하도록 하는 것을 나타내는 서보 에러 검출 수단, 상기 광 드라이브 시스템의 구성요소를 서로에 관해 배치하는 하우징 구조부를 구비하는 것을 특징으로 하는 광드라이브시스템.
- 초점 맞춤 기구와 트랙킹 기구를 갖는 디스크 드라이브시스템에 사용하는 기계적 분리기에 있어서, 가동 디스크 드라이브 구성요소에 비소망의 기계적 힘의 영향을 완화하는 제1수단, 및 상기 구성요소와 상기 비소망의 기계적 힘의 소스 사이에서 상기 제1수단을 지지하여 상기 구성요소의 기계적 분리가 제공되게 하는 제2수단을 구비하는 기계적 분리기.
- 초점 맞춤 기구와 트랙킹 기구를 갖는 디스크 드라이브 시스템에 사용하는 기계적 분리기에 있어서, 극편 어셈블리, 상기 극편 어셈블리의 단부를 고정하기 적합한 하우징, 상기 하우징에 장착되고 비소망의 기계적 힘의 영향을 완화하며, 최소 크리프를 나타내며 실리콘 고무, 폴리우레탄 및 사출성형 플라스틱으로 이루어진 군에서 선택되는 재료로 형성되는 복수개의 압출 리브를 구비하고, 그에 의해 진동분리와 열팽창의 수용이 제공되는 것을 특징으로 하는 기계적 분리기.
- 초점 맞춤 기구와 트랙킹 기구를 갖는 디스크 드라이브 시스템에 사용하는 기계적 분리기에 있어서, 극편 어셈블리, 상기 극편 어셈블리의 단부를 고정하기 적합한 하우징, 상기 하우징에 장착되고 비소망의 기계적 힘의 영향을 감소시키며 가동 캐리지가 고체면에 충돌하는 것을 방지하는 충돌 정지부를 제공하고, 최소 크리프를 나타내며 실리콘 고무, 폴리우레탄 및 사출성형 플라스틱으로 이루어진 군에서 선택되는 재료로 형성되는충격 흡수 펌퍼를 구비하고, 그에 의해 진동분리와 열팽창의 수용이 제공되는 것을 특징으로 하는 기계적분리기.
- 초점 맞춤 기구, 트랙킹 기구, 렌즈 및 판독되는 디스크를 갖고, 초점 맞춤 및 트랙킹 기구들이 피드백루프에 의해 제어되는 유형의 광디스크 시스템에서, 상기 피드백 루프가 서보 신호를 발생하여 상기 촛점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자회로, 가동 디스크 구성요소에의 비소망 기계적 힘의 영향을 감소시키는 제1수단, 상기 구성요소와 상기 비소망 기계적 힘의 소스 사이에서 상기 제1수단을 지지하여 상기 구성요소의 기계적 분리가 얻어지도록 하는 제2수단을 구비하는 것을 특징으로 하는 광디스크 시스템.
- 광디스크 시스템과 관련하여 사용하는 감소된 펄스 링잉을 갖는 개선된 콜피츠형 발진기로서, 상기 발진기는 저항이 증가된 탱크회로를 구비하는 개선된 콜피츠형 발진기.
- 개선된 콜피츠 발진기 전기 회로에 있어서, 에미터, 베이스, 및 콜렉터를 갖는 트랜지스터, 전압 공급부 및 상기 콜렉터와 상기 전압공급부 사이에서 직렬로 접속된 부하저항을 구비하고, 그에 의해 기록 펄스가 발진기에 공급될 때 발진기 링잉이 감소되는 것을 특징으로 하는 개선된 콜피츠 발진기 전기 회로.
- 광 드라이브 시스템에 사용되는 개선된 콜피츠 발진기 전기회로에 있어서, 에미터, 베이스 및 콜렉터를 갖는 트랜지스터, 상기 에미터와 상기 콜렉터 양단에서 상기 콜렉터와 접지 사이에 접속된 분리 캐패시터 탱크, 전압공급부, 및 상기 콜렉터와 상기 전압 공급부 사이에서 직렬인 부하 인덕턴스와 부하저항기를 구비하고, 그에 의해 기록 펄스가 상기 부하 저항과 상기 부하 인덕턴스 사이의 접합부에 공급될 때 발진기 링잉이 감소되는 것을 특징으로 하는 개선된 콜피츠 발진기 전기회로.
- 디스크 드라이브 시스템에 사용하는 어셈블리에 있어서, 레이저, 기록 펄스원 및 저항이 증가된 부하회로를 갖는 콜피츠 발진기를 구비하는 것을 특징으로 하는 디스크 드라이브 시스템에 사용되는 어셈블리.
- 디스크 드라이브 시스템에 사용되는 어셈블리에 있어서, 레이저; 기록 펄스원; 전압 공급부; 에미터, 베이스 및 콜렉터를 갖는 트랜지스터를 포함하는 콜피츠 발진기; 및 상기 콜렉터와 상기 전압 공급부 사이에서 직렬로 접속된 부하 저항을 구비하고, 그에 의해 기록 펄스가 발진기에 공급될 때 발진기 링잉 감소되는 것을 특징으로 하는 디스크 드라이브 시스템에 사용되는 어셈블리.
- 디스크 드라이브 시스템에 사용되는 어셈블리에 있어서, 레이저, 기록 펄스원, 에미터, 베이스 및 콜렉터를 갖는 트랜지스터와 상기 에미터와 상기 콜렉터 양단에서 상기 콜렉터와 접지 사이에 접속된 분리 캐패시터 탱크를 갖는 콜피츠 발진기, 전압 공급부, 및 상기 콜렉터와 상기 전압 공급부 사이에서 직렬인 부하 인덕턴스와 부하 저항기를 구비하고, 그에 의해 기록 펄스가 상기 부하저항과 상기 부하인덕턴스 사이의 접합부로 공급될 때 발진기 링잉이 감소되는 것을 특징으로 하는 디스크 드라이브 시스템에 사용하는 어셈블리.
- 초점 맞춤 기구와 트랙킹 기구를 갖고 상기 기구들이 피드백 루프에 의해 제어되는 유형의 광디스크 시스템에 있어서, 상기 피드백 루프는 서보 에러 신호를 발생하여 상기 초점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자 회로, 레이저, 기록 펄스원, 에미터, 베이스 및 콜렉터를 갖는 트랜지스터와 상기 에미터와 상기 콜렉터 양단에서 상기 콜렉터와 접지 사이에 접속된 분리 캐패시터 탱크를 포함하는 콜피츠 발진기, 전압 공급부, 및 상기 콜렉터와 상기 전압 공급부 사이에서 직렬인 탱크 인덕턴스와 부하 저항기를 구비하고, 그에 의해 기록 펄스가 상기 부하저항과 상기 탱트 인덕턴스 사이의 접합부에 공급될 때 발진기 링잉이 감소되는 것을 특징으로 하는 광디스크 시스템.
- 렌즈와 판독되는 디스크를 갖는 광디스크 시스템에서의 촛점 캡쳐방법에 있어서, 광을 판독하는 디스크에 닿도록 하는 단계, 렌즈를 렌즈행정의 최저부로 초기적으로 후퇴하는 단계, 최대 쿼드합 신호를 탐색하면서 렌즈 행정의 최상부까지 스캔하는 단계, 렌즈를 다시 디스크로부터 멀리 이동시키는 단계, 디스크로부터 돌아오는 전체광을 감시하는 단계, 상기 감시하는 동안 전체광이 측정된 1/2 피크치를 넘는 때를 결정하는 단계, 제1영교차를 탐색하는 단계, 쿼드합 신호가 1/2 피크 진폭을 넘는 때를 결정하는 단계, 및 그 점에서 초점을 클로즈하는 단계를 구비하는 것을 특징으로 하는 초점 캡쳐 방법.
- 렌즈와 판독되는 디스크를 갖는 광디스크 시스템에서의 초점 캡쳐 방법에 있어서, 광을 판독되는 디스크에 닿도록 하는 단계, 렌즈를 제1위치로 이동시키는 단계, 최대 쿼드합 신호를 탐색하면서 렌즈를 제1위치로부터 멀리하여 판독하는 디스크로 향하도록 이동시키는 단계, 렌즈를 다시 디스크로부터 멀리 이동시키는 단계, 디스크로부터 전체 수광을 감시하는 단계, 상기 광을 감시하는 동안 전체광이 측정된 1/2 피크치를 넘는 때를 결정하는 단계, 제1영교차를 탐색하는 단계, 쿼드합 신호가 1/2 피크진폭을 초과하는 때를 결정하는 단계, 및 쿼드합 신호가 1/2 피크 진폭을 초과하는 때 초점을 클로즈하는 단계를 구비하는 것을 특징으로 하는 초점 캡쳐 방법.
- 렌즈와 판독되는 디스크를 갖는 광디스크 시스템에서 사용하는 개선된 촛점 캡쳐시스템에 있어서, 광을 판독되는 디스크에 닿도록 하는 수단, 렌즈를 렌즈행정의 최저부로 초기적으로 후퇴하고, 이어서 최대 쿼드합 신호를 탐색하면서 렌즈행정의 최상부까지 스캔하고, 그런 다음 상기 렌즈를 다시 디스크로부터 멀리 이동시키는 수단, 상기 디스크로부터 돌아오는 전체광을 감시하고, 상기 감시하는 동안 상기 전체광이 측정된 1/2 피크치를 넘는 때를 결정하는 수단, 제1영교차를 탐색하는 수단, 및 쿼드합 신호가 1/2 피크진폭을 넘는 때를 결정하고, 그점에서 초점을 클로즈하는 수단을 구비하는 것을 특징으로 하는 개선된 초점 캡쳐시스템.
- 렌즈와 판독되는 디스크를 갖는 광디스크 시스템에 사용되는 개선된 초점 캡쳐 시스템에 있어서, 광을 판독되는 디스크에 닿도록 하는 수단, 상기 렌즈를 제1위치로 이동시키고, 최대 쿼드합 신호를 탐색하면서 상기 렌즈를 상기 제1위치로부터 멀리 그리고 판독되는 상기 디스크를 향하여 이동시키며, 상기 렌즈를 다시 상기 디스크로부터 멀리 이동시키는 수단, 상기 디스크로부터 전체 수광을 감시하는 수단, 상기 광의 감시동안 상기 전체광이 측정된 1/2 피크치를 넘는 때를 결정하는 수단, 제1영교차를 탐색하는 수단, 상기 쿼드합 신호가 1/2 피크 진폭을 초과하는 때를 결정하는 수단, 및 상기 쿼드합 신호가 1/2 피크 진폭을 초과하는 때 초점을 클로즈하는 수단를 구비하는 것을 특징으로 하는 개선된 초점 캡쳐시스템.
- 초점 맞춤 기구 및 트랙킹 기구, 렌즈와 판독되는 디스크를 갖고, 기구들이 피드백 루프에 의해 제어되는 유형의 광 디스크 시스템에 있어서, 상기 피드백 루프는 서보 신호를 발생하여 상기 초점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자회로, 광을 판독하는 디스크에 닿도록 하는 수단, 렌즈를 렌즈행정의 최저부로 초기적으로 후퇴시키고, 이어서 최대 쿼드합 신호를 탐색하면서 렌즈 행정의 최상부까지 스캔하고, 그런 다음 상기 렌즈를 상기 디스크로부터 멀리 이동시키는 수단, 상기 디스크로부터 돌아오는 전체광을 감시하고, 상기 감시하는 동안 상기 전체광이 측정된 1/2 피크치를 넘는 때를 결정하는 수단, 제1영교차를 탐색하는 수단, 및 쿼드합 신호가 1/2 피크 진폭을 넘는 때를 결정하고, 그 점에서 초점을 클로즈하는 수단을 구비하고, 그에 의해 초점 캡쳐의 개선이 이루어지는 것을 특징으로 하는 광 디스크 시스템.
- 복수개의 데이터 섹터를 갖는 디스크 형태의 저장 매체, 상기 섹터가 블랭크인지를 결정하기 위해 상기 섹터 중 특정 하나를 평가하는 증폭기 수단, 및 상기 섹터가 평가되면서 상기 증폭기 수단이 최대 이득으로 동작하는 것을 금지하는 수단을 구비하는 것을 특징으로 하는 광 디스크 드라이브 시스템.
- 초점 및 기구 및 트랙킹 기구, 렌즈와 판독되는 디스크를 갖고, 기구들이 피드백 루프 의해 제어되는 유형의 광 디스크 시스템에 있어서, 상기 피드백 루프는 서보 신호를 발생하여 상기 초점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자회로, 섹터가 블랭크인지를 결정하기 위해 상기 디스크의 특정 섹터를 평가하는 증폭기 수단, 및 상기 섹터가 평가되면서 상기 증폭기 수단이 최대 이득으로 동작하는 것을 금지하는 수단을 구비하는 것을 특징으로 광 디스크 시스템.
- 레이저, 전류를 상기 레이저로 전하는 제1수단, 및 상기 레이저를 드라이브하기 위해 상기 제1수단을 전력 전환하는 디지탈 논리 수단을 구비하고, 그에 의해 상기 레이저가 여기될 때만 전력이 소비되고 상승 및 하강 전환 특성의 개선이 이루어지는 것을 특징으로 하는 광 디스크 시스템.
- 초점 맞춤 기구 및 트랙킹 기구, 렌즈와 판독되는 디스크를 갖고, 기구들이 피드백 루프에 의해 제어되는 유형의 광 디스크 시스템에 있어서, 상기 피드백 루프는 서보 신호를 발생하여 상기 초점 맞춤 기구와 상기 트랙킹 기구의 정정을 행하는 전자회로, 전류를 레이저로 전하는 제1수단, 및 상기 레이저를 드라이브하기 위해 상기 제1수단을 전력전환하는 디지탈 논리 수단을 구비하고, 그에 의해 상기 레이저가 여기될 때만 전력이 소비되고 상승 및 하강 전환 특성의 개선이 이루어지는 것을 특징으로 하는 광 디스크 시스템.
- 저장 매체의 회전 속도를 초기 회전 속도로부터 하부 수용가능 한계 및 상부 사용가능 한계를 갖는 소망의 회전 속도로 변경시키는 방법에 있어서, 상기 저장 매체에 힘을 가하여 상기 저장 매체의 회전속도를 상기초기 회전 속도로부터 상기 초기 회전 속도와 상기 소망의 회전 속도 사이에 있는 제1상부 한계를 향해 변경시키는 단계.상기 힘을 가하는 단계를 수행하면서, 상기 저장매체의 회전 속도가 상기 제1상부 한계를 초과하는 때 제1신호를 발생하는 단계, 상기 힘을 가하는 단계를 수행하면 그리고 상기 제1신호를 발생하는 단계 후에, 상기 저장 매체의 상기 회전 속도가 상기 하부 수용가능 한계를 초과할 때 제2신호를 발행하는 단계, 및 그 후 상기 저장 매체로의 상기 힘의 상기 인가를 종료하는 단계로 이루어지는 것을 특징으로 하는 저장 매체 회전 속도 변경 방법.
- 저장 매체의 회전 속도를 초기 회전 속도로부터 제1수용 가능 한계 및 제2수용 가능 한계를 갖는 소망의 회전 속도로 변경시키는 방법에 있어서, 상기 저장 매체에 힘을 가하여 상기 저장 매체의 회전 속도를 상기 초기 회전 속도로부터 상기 초기 회전 속도와 상기 소망의 회전 속도 사이에 있는 제1중간 한계를 향해 변경시키는 단계, 상기 힘을 가하는 단계를 수행하면서, 상기 저장 매체의 회전 속도가 상기 제1중간 한계를 넘을 때 제1신호를 발생하는 단계, 상기 힘을 가하는 단계를 수행하면 그리고 상기 제1신호를 발생하는 단계 후에, 상기 저장 매체의 상기 회전 속도가 상기 제1허용 가능 한계를 넘을 때 제2신호를 발생하는 단계, 및 그후 상기 저장 매체로의 상기 힘의 상기 인가를 종료하는 단계로 이루어지는 것을 특징으로 하는 저장 매체 회전 속도 변경 방법.
- 기록 매체 상의 정보를 검색하는 장치에서 서보 에러 신호를 정규화 하는 회로, 기준 전압 입력, 클럭 입력, 아날로그 입력, 및 디지탈 출력을 갖는 아날로그/디지탈 변환기, 다수의 검출 출력과 검출되는 정보에 대한 동작을 제어하는 하나 이상의 서보 기구를 갖는 정보 검출 장치, 상기 아날로그/디지탈 변환기의 상기 기준 전압 입력에 접속된 합 신호 출력과 상기 검출 장치의 상기 다수의 검출 출력에 접속된 다수의 입력을 갖는 신호 합 회로, 서보 에러 신호 출력과 다수의 입력을 갖는 서보 에러 신호 회로로서, 상기 다수의 입력은 상기 검출 장치의 상기 다수의 검출 출력에 접속되고, 상기 서보 에러 신호 출력은 상기 다수의 입력과 상기 합 신호 출력의 일부의 조합하며, 상기 서보 에러 신호 출력은 변환을 위해 상기 아날로그/디지탈 변환기의 상기 아날로그 입력에 접속되는 서보 에러 신호 회로, 상기 클럭 입력에 접속되고 상기 변환기를 제어하여 상기 서보 에러 신호를 상기 합 신호 출력으로 정규화하는 디지탈 신호로 변환하는 샘플링 클럭부, 및 상기 아날로그/디지탈 변환기의 상기 디지탈 출력에 접속되는 입력과 상기 하나 이상의 서보 기구를 제어하는 출력을 갖는 처리 회로를 구비하는 광 정보시스템.
- 아날로그/디지탈 변환기의 기준 전압 입력을 다중화 하여 샘플링 클럭에 의해 제어되는 속도로 복수개의 아날로그 입력의 정규화와 기준 교호 디지탈 출력을 생성하는 회로로서, 상기 샘플링 클럭은 제1 및 제2입력, 출력, 및 상기 제1및 상기 제2입력을 상기 출력에 교대로 접속하는 제어 입력을 포함하는 스위치를 포함하고, 상기 출력은, 상기 기준 전압 입력에 인가되는 회로, 다수의 검출 출력을 갖고 검출되는 정보에 대한 동작을 제어하는 하나 이상의 서보 기구를 갖는 정보 검출 장치, 상기 스위치의 상기 제1입력에 접속된 합 신호 출력을 갖고 상기 검출 장치의 상기 다수의 검출 출력에 접속된 다수의 입력을 갖는 신호합 회로, 상기 스위치의 상기 제2입력에 접속된 직류 전압 기준부, 상기 스위치의 상기 제어 입력에 접속되어 상기 스위치를 소정 속도로 작동시키고, 그에 의해 상기 합 신호와 상기 직류 전압 기준부를 상기 기준 전압 입력에 다중화하는 제어 클럭부, 서보 에러 신호 출력과 다수의 입력을 갖는 서보 에러 신호 회로로서, 상기 다수의 입력은 상기 검출 장치의 상기 다수의 검출 출력에 접속되고, 상기 서보 에러 신호 출력은 상기 다수의 입력과 상기 합 신호 출력의 일부의 조합이며, 상기 서보 에러 신호 출력은 변환을 위해 상기 아날로그/디지탈 변환기의 상기 아날로그 입력에 접속되는 서보 에러 신호 회로, 상기 클럭 입력에 접속되고 상기 스위치가 상기 제1입력을 상기 출력에 접속할 때 상기 변환기를 제어하여 상기 서보 에러 신호를 상기 합 신호 출력을 정규화되는 디지탈 신호로 변환하는 샘플링 클럭부, 및 상기 아날로그/디지탈 변환기의 상기 디지탈 출력에 접속되는 입력과 상기 하나 이상의 서보 기구를 제어하는 출력을 갖는 처리 회로를 구비하는 광 정보시스템.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US08/376,882 | 1995-01-25 | ||
US08/376,882 US5729511A (en) | 1991-02-15 | 1995-01-25 | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
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Application Number | Title | Priority Date | Filing Date |
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KR1019990020166A Division KR100307210B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 회전 속도를 초기 속도로부터 소망의 속도로 변경하기 위한 방법 및 장치 |
KR1019990020135A Division KR100307204B1 (ko) | 1995-01-25 | 1999-06-02 | 감소된 링잉을 갖는 콜피츠형 발진기 및 이를 이용하는 광 디스크 시스템 |
KR1019990020156A Division KR100307209B1 (ko) | 1995-01-25 | 1999-06-02 | 광 디스크 시스템에서 레이저로 향하는 전류를 제어하기 위한레이저 구동기 |
KR1019990020168A Division KR100333793B1 (ko) | 1995-01-25 | 1999-06-02 | 정보 저장 장치용 서보 제어 시스템 |
KR1019990020131A Division KR100333792B1 (ko) | 1995-01-25 | 1999-06-02 | 원하지 않는 기계적 힘의 영향을 완화시키기 위한 디스크 드라이브 시스템용 분리 장치 및 이를 포함하는 디스크 드라이브 시스템 |
KR1019990020138A Division KR100307205B1 (ko) | 1995-01-25 | 1999-06-02 | 서보 에러 신호를 정규화하고 기준 전압 입력 및 디지탈 출력을 멀티플렉스하기 위한 광 드라이브 시스템용 아날로그 디지탈 변환기 및 조립체 |
KR1019990020148A Division KR100307207B1 (ko) | 1995-01-25 | 1999-06-02 | 초점 에러 신호 회로를 갖는 초점 포착 조립체를 포함하는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020149A Division KR100307208B1 (ko) | 1995-01-25 | 1999-06-02 | 판독 가능 디스크상의 공백 섹터 검사용 회로를 갖는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020164A Division KR100333791B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 정보를 처리하기 위하여 바이어스 코일 및 광원을제어하기 위한 광 디스크 시스템 및 방법 |
KR1019990020139A Division KR100307206B1 (ko) | 1995-01-25 | 1999-06-02 | 초점을 클로즈하기 위한 쿼드 합 신호의 검출을 포함하는 광 디스크 시스템용 초점 포착 방법 |
KR1019990020161A Division KR100333794B1 (ko) | 1995-01-25 | 1999-06-02 | 레이저 드라이버용 제어기를 구비하는 전류 감시 회로를 갖는광 디스크 시스템 및 그 동작 방법 |
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KR960030132A true KR960030132A (ko) | 1996-08-17 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019960001556A KR960030132A (ko) | 1995-01-25 | 1996-01-18 | 광 디스크 시스템 |
KR1019990020135A KR100307204B1 (ko) | 1995-01-25 | 1999-06-02 | 감소된 링잉을 갖는 콜피츠형 발진기 및 이를 이용하는 광 디스크 시스템 |
KR1019990020156A KR100307209B1 (ko) | 1995-01-25 | 1999-06-02 | 광 디스크 시스템에서 레이저로 향하는 전류를 제어하기 위한레이저 구동기 |
KR1019990020138A KR100307205B1 (ko) | 1995-01-25 | 1999-06-02 | 서보 에러 신호를 정규화하고 기준 전압 입력 및 디지탈 출력을 멀티플렉스하기 위한 광 드라이브 시스템용 아날로그 디지탈 변환기 및 조립체 |
KR1019990020139A KR100307206B1 (ko) | 1995-01-25 | 1999-06-02 | 초점을 클로즈하기 위한 쿼드 합 신호의 검출을 포함하는 광 디스크 시스템용 초점 포착 방법 |
KR1019990020166A KR100307210B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 회전 속도를 초기 속도로부터 소망의 속도로 변경하기 위한 방법 및 장치 |
KR1019990020161A KR100333794B1 (ko) | 1995-01-25 | 1999-06-02 | 레이저 드라이버용 제어기를 구비하는 전류 감시 회로를 갖는광 디스크 시스템 및 그 동작 방법 |
KR1019990020131A KR100333792B1 (ko) | 1995-01-25 | 1999-06-02 | 원하지 않는 기계적 힘의 영향을 완화시키기 위한 디스크 드라이브 시스템용 분리 장치 및 이를 포함하는 디스크 드라이브 시스템 |
KR1019990020148A KR100307207B1 (ko) | 1995-01-25 | 1999-06-02 | 초점 에러 신호 회로를 갖는 초점 포착 조립체를 포함하는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020168A KR100333793B1 (ko) | 1995-01-25 | 1999-06-02 | 정보 저장 장치용 서보 제어 시스템 |
KR1019990020149A KR100307208B1 (ko) | 1995-01-25 | 1999-06-02 | 판독 가능 디스크상의 공백 섹터 검사용 회로를 갖는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020164A KR100333791B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 정보를 처리하기 위하여 바이어스 코일 및 광원을제어하기 위한 광 디스크 시스템 및 방법 |
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KR1019990020135A KR100307204B1 (ko) | 1995-01-25 | 1999-06-02 | 감소된 링잉을 갖는 콜피츠형 발진기 및 이를 이용하는 광 디스크 시스템 |
KR1019990020156A KR100307209B1 (ko) | 1995-01-25 | 1999-06-02 | 광 디스크 시스템에서 레이저로 향하는 전류를 제어하기 위한레이저 구동기 |
KR1019990020138A KR100307205B1 (ko) | 1995-01-25 | 1999-06-02 | 서보 에러 신호를 정규화하고 기준 전압 입력 및 디지탈 출력을 멀티플렉스하기 위한 광 드라이브 시스템용 아날로그 디지탈 변환기 및 조립체 |
KR1019990020139A KR100307206B1 (ko) | 1995-01-25 | 1999-06-02 | 초점을 클로즈하기 위한 쿼드 합 신호의 검출을 포함하는 광 디스크 시스템용 초점 포착 방법 |
KR1019990020166A KR100307210B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 회전 속도를 초기 속도로부터 소망의 속도로 변경하기 위한 방법 및 장치 |
KR1019990020161A KR100333794B1 (ko) | 1995-01-25 | 1999-06-02 | 레이저 드라이버용 제어기를 구비하는 전류 감시 회로를 갖는광 디스크 시스템 및 그 동작 방법 |
KR1019990020131A KR100333792B1 (ko) | 1995-01-25 | 1999-06-02 | 원하지 않는 기계적 힘의 영향을 완화시키기 위한 디스크 드라이브 시스템용 분리 장치 및 이를 포함하는 디스크 드라이브 시스템 |
KR1019990020148A KR100307207B1 (ko) | 1995-01-25 | 1999-06-02 | 초점 에러 신호 회로를 갖는 초점 포착 조립체를 포함하는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020168A KR100333793B1 (ko) | 1995-01-25 | 1999-06-02 | 정보 저장 장치용 서보 제어 시스템 |
KR1019990020149A KR100307208B1 (ko) | 1995-01-25 | 1999-06-02 | 판독 가능 디스크상의 공백 섹터 검사용 회로를 갖는 광 디스크 시스템 및 그 동작 방법 |
KR1019990020164A KR100333791B1 (ko) | 1995-01-25 | 1999-06-02 | 저장 매체의 정보를 처리하기 위하여 바이어스 코일 및 광원을제어하기 위한 광 디스크 시스템 및 방법 |
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US (14) | US5729511A (ko) |
EP (14) | EP0840309B1 (ko) |
JP (7) | JPH08293121A (ko) |
KR (12) | KR960030132A (ko) |
CN (13) | CN1144186C (ko) |
AT (6) | ATE254790T1 (ko) |
AU (1) | AU716195B2 (ko) |
BR (1) | BR9600141A (ko) |
CA (1) | CA2167549A1 (ko) |
DE (6) | DE69630783T2 (ko) |
DK (1) | DK4696A (ko) |
ID (4) | ID26670A (ko) |
IL (1) | IL116805A (ko) |
NO (1) | NO960220L (ko) |
PT (2) | PT829861E (ko) |
SG (18) | SG91802A1 (ko) |
TW (8) | TW385439B (ko) |
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Cited By (1)
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KR100570578B1 (ko) * | 1997-11-21 | 2006-07-25 | 텍사스 인스트루먼츠 인코포레이티드 | 액츄에이터코일상의역기전력전압을정확하게측정하기위한방법및장치 |
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