MDCP: Patent Abstact US05243588: Method and apparatus for reading digital data bursts comprising data clusters and cluster linking sectors

US05243588 Method and apparatus for reading digital data bursts comprising data clusters and cluster linking sectors

Assignee Sony Corporation

Assign./Filed Sept. 7, 1993/ Aug. 16, 1991

Inventors Maeda; Yasuaki, Ando; Ryo, Obata; Hideo, Nagashima; Hideki, Yoshida; Tadao, Fujiie; Kazuhiko, Fujisawa; Hirotoshi, Mukawa; Hiroshi

Summary Similar to US05224087, discussing the necessity of the cluster-linking sector (used as a place for the error correction code to run out).

Abstract There is provided a disc recording apparatus for recording digital data by an optical unit in such a manner that time compressed digital data are arranged into a plurality of clusters at an interval of a predetermined number of sectors, a cluster-linking sector having a length longer than an interleaving length is provided at each linking part of each cluster, and the digital data are subsequently interleaved and recorded on a disc-shaped recording medium so that interleaving at the time of data recording on the cluster-by-cluster basis is within the range of the cluster-linking sector. There is also provided a disc reproducing apparatus for reproducing digital data by an optical unit in which playback data are obtained by reproducing record data recorded on a disc-shaped recording medium in such a manner that a cluster-linking sector longer than an interleaving length is provided in a linking section of each cluster composed of a predetermined number of sectors, the resulting data is interleaved and recorded on the disc-shaped recording medium, and the playback data are deinterleaved and freed of the cluster-linking sectors so as to be stored transiently in a storage unit. Playback data are written in the storage unit when the data volume of playback data stored in the storage unit becomes smaller than a predetermined volume to maintain a readout space in the storage unit which is in excess of the predetermined data volume.

US05243588	Method and apparatus for reading digital data bursts comprising data clusters and cluster linking sectors
Assignee	Sony Corporation
Assign./Filed	Sept. 7, 1993/ Aug. 16, 1991
Inventors	Maeda; Yasuaki, Ando; Ryo, Obata; Hideo, Nagashima; Hideki, Yoshida; Tadao, Fujiie; Kazuhiko, Fujisawa; Hirotoshi, Mukawa; Hiroshi
Summary	Similar to US05224087, discussing the necessity of the cluster-linking sector (used as a place for the error correction code to run out).
Abstract	There is provided a disc recording apparatus for recording digital data by an optical unit in such a manner that time compressed digital data are arranged into a plurality of clusters at an interval of a predetermined number of sectors, a cluster-linking sector having a length longer than an interleaving length is provided at each linking part of each cluster, and the digital data are subsequently interleaved and recorded on a disc-shaped recording medium so that interleaving at the time of data recording on the cluster-by-cluster basis is within the range of the cluster-linking sector. There is also provided a disc reproducing apparatus for reproducing digital data by an optical unit in which playback data are obtained by reproducing record data recorded on a disc-shaped recording medium in such a manner that a cluster-linking sector longer than an interleaving length is provided in a linking section of each cluster composed of a predetermined number of sectors, the resulting data is interleaved and recorded on the disc-shaped recording medium, and the playback data are deinterleaved and freed of the cluster-linking sectors so as to be stored transiently in a storage unit. Playback data are written in the storage unit when the data volume of playback data stored in the storage unit becomes smaller than a predetermined volume to maintain a readout space in the storage unit which is in excess of the predetermined data volume.