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EP0702370A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Data reproduction

Assignee: Sony Corp
•
Filing: 1995-09-04
•
Granted: —
•
Expires: 2015-09-04
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Abstract

Abstract There is provided a method and apparatus for reproducing data which allow a reduction in the time required for recovery from the occurrence of an error. In a method and apparatus for reproducing data wherein data read from a disc is demodulated and written in a memory and data read from the memory is decoded to reproduce the original data by employing an arrangement wherein data is recorded in the disc on a sector basis; sector information associated with the sectors of demodulated data is detected; and writing and reading operations on the memory means are controlled based on the detected information. Control over the memory and distribution of data is performed on the basis of units (sectors) for data access to a disc. Therefore, even if the synchronization of data at the distribution device and decoder is disturbed, the synchronization on a sector basis can be recovered.

Inventors

  • 👤 Kiyoshi c/o Int. Prop. Div. Sony Corp. Ota
  • 👤 Hajime c/o Int. Prop. Div. Sony Corp. Nitta
  • 👤 Toshiyuki c/o Int. Prop. Div. Sony Corp. Ishii

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 16:34
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95; G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B20/00; G11B20/10; G11B20/10527; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; H04N19/00; H04N19/85; H04N19/89; H04N9/00; H04N9/79; H04N9/87; H04N9/877; G11B20/00007; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2525; G11B2220/2537; G11B2220/2562; H04N5/78; H04N5/781; H04N5/84; H04N5/85; H04N9/80; H04N9/804; H04N9/8042

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 72 words
A method for reproducing data wherein data read from a disc is demodulated and written in a memory means and data read from said memory means is decoded to reproduce the original data, comprising the steps of: recording data in said disc on a sector basis; detecting sector information associated with said sector from the demodulated data; and controlling writing and reading operations on said memory means based on said detected information.
Claim 2
Dependent Claim 23 words
The method according to Claim 1, wherein the data recorded in said disc includes at least an encoded video signal or audio signal.
Claim 3
Dependent Claim 35 words
The method according to Claim 1, wherein the data read from said memory means is analyzed and said data is distributed to a decoder appropriate for the type of the data identified by the analysis.
Claim 4
Independent Claim 77 words
A method for reproducing data comprising the steps of: demodulating data read from a disc; writing the demodulated data in a memory means; reproducing data rad from said memory means as the original data; detecting sector information associated with sectors of said disc, the data being recorded on said disc on a sector basis; and controlling writing and reading operations on said memory means based on said sector information detected in said step of detecting sector information.
Claim 5
Dependent Claim 23 words
The method according to Claim 4, wherein the data recorded in said disc includes at least an encoded video signal or audio signal.
Claim 6
Dependent Claim 35 words
The method according to Claim 5, wherein the data read from said memory means is analyzed and said data is distributed to a decoder appropriate for the type of the data identified by the analysis.
Claim 7
Independent Claim 127 words
An apparatus for reproducing data comprising: a data supply means for supplying data on a sector basis; a sector information detection means for detecting a sector in response to the output of said data supply means and for classifying the output into sector information associated with the sector and information other than the sector information; a memory means for buffering data output by said sector information detection means; a distribution means for analyzing and distributing data read from said memory means; a decoding means for decoding data output by said distribution means; and a control means for controlling data writing and reading operations on said memory means and distribution to a decoder on a sector basis based on the sector information from said sector information detection means.
Claim 8
Dependent Claim 22 words
The apparatus according to Claim 7, wherein said decoder decodes at least the data of a video signal and an audio signal.
Claim 9
Dependent Claim 27 words
The apparatus according to Claim 7, wherein the sector data supplied by said data supply means includes information indicating the presence of video data or audio data.

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