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1. 发明专利

CA1301321C OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS 未知
公开(公告)号：CA1301321C
公开(公告)日：1992-05-19
申请号：CA560641
申请日：1988-03-04
申请人： AZUMATANI YASUSHI
发明人： AZUMATANI YASUSHI , SATOH ISAO , ICHINOSE MAKOTO , FUKUSHIMA YOSHIHISA , KUROKI YUZURU , TAKAGI YUJI
IPC分类号： G11B7/00 , G11B7/004 , G11B20/18 , G11B20/10
摘要： Disclosed in an optical information recording and reproducing apparatus in which parts including a onechip microcontroller, an error flag counter and an error comparison circuit are provided to detect whether or not an optical disk or an internal optical head of the apparatus is fouled. When the optical disk or the internal optical head is fouled due to attraction of dust floating in air, a recording laser beam is scattered by the dust resulting in reduced recording power, and a reproducing laser beam is also scattered by the dust, with the result that signal recording and reproduction cannot be satisfactorily carried out. In the optical information recording and reproducing apparatus, test data is recorded on a self-diagnostic area of the optical disk when the optical disk loaded in the apparatus is new and has not been used yet, and initial error information detected in the test data reproduced from the selfdiagnostic area is registered on an error managing area of the optical disk. On the other hand, when the optical disk which has been used already is loaded, error information detected in the test data recorded on and reproduced from the self-diagnostic area of the optical disk is compared with the initial error information registered in the error managing area of the optical disk. When the result of comparison proves that the number of data errors increases over a predetermined reference value, the optical disk or the internal optical head is fouled with dust to such an extent that the recording and reproducing function cannot be satisfactorily performed.

2. 发明申请

WO1997032437A1 HIGH-RESOLUTION OPTICAL DISK FOR RECORDING STEREOSCOPIC VIDEO, OPTICAL DISK REPRODUCING DEVICE, AND OPTICAL DISK RECORDING DEVICE 审中-公开
标题翻译：用于记录立体视频的高分辨光盘，光盘再现装置和光盘记录装置
公开(公告)号：WO1997032437A1
公开(公告)日：1997-09-04
申请号：PCT/JP1997000615
申请日：1997-02-28
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. , OSHIMA, Mitsuaki , KASHIWAGI, Yoshiichiro , HASEBE, Takumi , TSUGA, Kazuhiro , NAKAMURA, Kazuhiko , MORI, Yoshihiro , KOZUKA, Masayuki , FUKUSHIMA, Yoshihisa , KAWARA, Toshiyuki , AZUMATANI, Yasushi , OKADA, Tomoyuki , MATSUI, Kenichi
发明人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
IPC分类号： H04N13/02
CPC分类号： H04N21/816 , G11B20/10 , G11B20/1251 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/322 , G11B27/329 , G11B2020/10944 , G11B2220/2562 , H04N5/04 , H04N5/06 , H04N5/4401 , H04N5/45 , H04N5/46 , H04N5/775 , H04N5/783 , H04N5/85 , H04N7/012 , H04N7/0122 , H04N9/7921 , H04N9/7925 , H04N9/8042 , H04N9/8045 , H04N9/8063 , H04N9/8205 , H04N9/8227 , H04N9/877 , H04N13/10 , H04N13/15 , H04N13/161 , H04N13/167 , H04N13/178 , H04N13/189 , H04N13/194 , H04N13/239 , H04N13/341 , H04N13/359 , H04N13/361 , H04N13/398 , H04N19/597 , H04N21/42646 , H04N21/4305 , H04N21/4307 , H04N21/4325 , H04N21/4334 , H04N21/44016 , H04N21/84 , H04N2013/0085
摘要： An optical disk for recording stereoscopic videos and high-quality video signals and a system for reproducing the videos and signals from the optical disk are made compatible with the conventional video reproducing system. A reproducing device which is used for reproducing stereoscopic videos and high-quality videos obtains stereoscopic video or high-quality videos by reproducing both first and second interleave blocks on the optical disk in which first and second video signals are alternately recorded on the left and right sides by dividing the first and second video signals into frame groups of 1 GOP or more and a reproducing device which is not used for reproducing the stereoscopic videos and high-quality videos obtains ordinary videos by only reproducing either the first or second interleave block by jumping tracks.
摘要翻译：用于记录立体视频和高质量视频信号的光盘和用于再现来自光盘的视频和信号的系统与常规视频再现系统兼容。用于再现立体视频和高质量视频的再现装置通过再现第一和第二视频信号在左右交替记录的光盘上的第一和第二交错块来获得立体视频或高质量视频通过将第一和第二视频信号划分成1 GOP或更多的帧组，并且不用于再现立体视频的再现装置和高质量视频通过仅通过跳转来再现第一或第二交织块来获得普通视频轨道。

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