Track-address judging method

专利名称：Track-address judging method发明人：Mitsuo Oshiba,Kazutake Sugawara申请号：US07/904036申请日：19920625公开号：US05293568A公开日：19940308

摘要：The present invention reads out track addresses written onto ID sections of arecording medium, for example, from five, tracks of the plurality of tracks read outsimultaneously, to execute demodulation and error correction. In case where theaddresses are multiple-written onto the ID sections, the optical spot judges the trackaddress of the desired track on the basis of the plurality of read-out track addressesuntil the optical spot passes through the remaining track address. Further, in case wherethere is only a single one of the track addresses written on said ID sections, the trackaddresses are read out one by one, are demodulated and are error-corrected. The trackaddress of the desired track is judged on the basis of the plurality of read-out trackaddresses, prior to the fact that the optical spot enters an information recording area.

申请人：OLYMPUS OPTICAL CO., LTD.

代理机构：Armstrong, Westerman, Hattori, McLeland & Naughton

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