{"title":"光记录读写通道","authors":"Hans J. Verboom, R. Bracht, C. Steenbergen","doi":"10.1364/ods.1984.wcc3","DOIUrl":null,"url":null,"abstract":"Generally optical discs are divided into several sectors in which an amount of data is stored. Each sector starts with a header which contains an address and synchronization information. If, because of aging of the disc, this sync-info is destroyed, one needs a backup for having access to the data in that sector. A convenient way of attaining this is to have a prerecorded clock (a depth modulation of the pregroove) in the disc. Using this clock, a defect-insensitive phase lock loop and a counter, the sync-info of previous sectors can be used to reach the data in the damaged sector.","PeriodicalId":268493,"journal":{"name":"Topical Meeting on Optical Data Storage","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Read-Write Channel for Optical Recording\",\"authors\":\"Hans J. Verboom, R. Bracht, C. Steenbergen\",\"doi\":\"10.1364/ods.1984.wcc3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Generally optical discs are divided into several sectors in which an amount of data is stored. Each sector starts with a header which contains an address and synchronization information. If, because of aging of the disc, this sync-info is destroyed, one needs a backup for having access to the data in that sector. A convenient way of attaining this is to have a prerecorded clock (a depth modulation of the pregroove) in the disc. Using this clock, a defect-insensitive phase lock loop and a counter, the sync-info of previous sectors can be used to reach the data in the damaged sector.\",\"PeriodicalId\":268493,\"journal\":{\"name\":\"Topical Meeting on Optical Data Storage\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Topical Meeting on Optical Data Storage\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1364/ods.1984.wcc3\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Topical Meeting on Optical Data Storage","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/ods.1984.wcc3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Generally optical discs are divided into several sectors in which an amount of data is stored. Each sector starts with a header which contains an address and synchronization information. If, because of aging of the disc, this sync-info is destroyed, one needs a backup for having access to the data in that sector. A convenient way of attaining this is to have a prerecorded clock (a depth modulation of the pregroove) in the disc. Using this clock, a defect-insensitive phase lock loop and a counter, the sync-info of previous sectors can be used to reach the data in the damaged sector.
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