[특허]Multi-layered optical disk with track and layer identification

Multi-layered optical disk with track and layer identification 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G11B-007/24 G11B-023/40 G11B-023/42
출원번호	US-0595422 (1990-10-11)
우선권정보	JP-0283241 (1989-10-30)
발명자 / 주소	Satoh Isao (Neyagawa JPX) Fukushima Yoshihisa (Osaka JPX) Takagi Yuji (Kadoma JPX) Azumatani Yasushi (Neyagawa JPX) Hamasaka Hiroshi (Nishinomiya JPX)
출원인 / 주소	Matsushita Electrical Industrial Co., Ltd. (Osaka JPX 03)
인용정보	피인용 횟수 : 60 인용 특허 : 0

초록 ▼

A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have an identi

대표청구항 ▼

A multi-layered optical disk formatted to increase the density of information that can be read by a relatively small light beam when focused on a specific layer, comprising: a base plate; a plurality of recording layers progressively stacked above the base plate; a spacing layer positioned between recording layers to segregate adjacent recording layers; and a plurality of tracks positioned on each recording layer at a predetermined track pitch, the track pitch being the distance between adjacent tracks in the same recording layer, the respective tracks extending approximately transverse to a radial direction of the disk, all of the tracks on each adjacent recording layer being shifted in radial pitch in the radial direction from the tracks on another adjacent recording layer, wherein each track includes an identification section having a specific area on which to record a recording layer address, LA, of the layer on which the track is positioned. A multi-layered optical disk formatted to increase the density of information that can be read by a relatively small light beam of a single predetermined wavelength when focused on a specific layer, comprising: a base plate; a plurality of recording layers progressively stacked above the base plate; a spacing layer positioned between recording layers to segregate adjacent recording layers; and a plurality of tracks positioned on each recording layer at a predetermined track pitch, the track pitch being the distance between adjacent tracks in the same recording layer, each track including an identification section having a specific area on which to record a recording layer address, LA, of the layer on which the track is positioned, the respective tracks extending approximately transverse to a radial direction of the disk, all of the tracks on each adjacent recording layer being shifted in radial pitch in the radial direction from another adjacent recording layer so that each respective track on one recording layer is offset from each respective track on the other adjacent recording layer in the stacked direction of the optical disk. A multi-layered optical disk capable of being used by focusing a light beam on individual layers comprising: a first recording layer; a second recording layer, spaced from and positioned below the first recording layer; a third recording layer, spaced from and positioned below the second recording layer; a spacer material, transparent to the light beam, positioned between the first, second, and third recording layers; a plurality of tracks provided in each of the recording layers, the tracks extending approximately transverse to a radial direction of the disk, each track being divided into a plurality of sectors; and a plurality of identification sections provided in one of the sectors of each track, each identification section holding an address for discriminating one recording layer to which the identification section belongs from the other layer, the address being able to be read by the light beam which is in the state of being focused on the sector.

이 특허를 인용한 특허 (60)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Multi-layered optical disk with track and layer identification 원문보기

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Multi-layered optical disk with track and layer identification 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (60)

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