EP0342833A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
nigital data recording and/or reproduction apparatus and recording media
Assignee: Sony Corp
•
Filing: 1989-05-05
•
Granted: —
•
Expires: 2009-05-05
Abstract
Abstract Apparatus for use with a compact disc (1) for writing and reproducing data on to or from an arbitrary sector of the disc (1) or rewriting data in the arbitrary sector by allowing selection between an interleave or deinterleave process similar to that in an audio type compact disc and an interleave or deinterleave process of a length corresponding to one recording unit or sector, thereby to make possible sector-completion type encoding and decoding. Upon recording, an encoding circuit (3) provided with an interleave delay circuit (5) effects the selected interleave process. Upon reproduction, a decoding circuit (10) provided with a deinterleave delay circuit (12) effects the required deinterleave process.
Inventors
- 👤 Yoichiro Sako
- 👤 Hiroshi Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:00
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/12; G11B20/18; G11B20/1806; G11B20/1809
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
Digital data recording apparatus comprising encoding means (3) for adding a predetermined error correction code to input data and means for recording the encoded data on to a recording medium (1), characterised in that the encoding means (3) includes a memory (61) for temporarily storing the input data and control address means (63 to 65) for supplying a control address for the memory (61), the control address means (63 to 65) being capable of selecting one of a first control address and a second control address.
Claim 2
Dependent Claim
86 words
Digital data recording apparatus comprising encoding means (3) for adding a predetermined error correction code to input data and means for recording the encoded data on to a recording medium (1), characterised in that the encoding means (3) includes a memory (61) for temporarily storing the input data and control address means (63 to 65) for supplying a control address for the memory (61), the control address means (63 to 65) being capable of selecting one of a first control address and a second control address.
Claim 3
Dependent Claim
23 words
Digital data recording apparatus according to claim 1, wherein the first or second control address is recorded on to the recording medium (1).
Claim 4
Dependent Claim
76 words
Digital data recording apparatus according to claim 2, wherein the encoding means (3) includes interleave means for interleaving the input data in response to a control address supplied to the interleave means and wherein the first control address causes the interleave means to interleave input data to make convolution encoding and the second control address causes the interleave means to interleave input data in a format allowing complete encoding in a sector of the input data.
Claim 5
Dependent Claim
16 words
Digital data recording apparatus according to claim 3, wherein the sector is composed of 98 frames.
Claim 6
Dependent Claim
101 words
Digital data reproduction apparatus comprising means for reproducing and means (10) for decoding data recorded on a recording medium (1) by the recording apparatus according to claim 3, characterised in that the decoding means (10) includes a memory (71) for temporarily storing the reproduction data and control address means (73 to 75) for controlling an address for the memory (71), the control address means (73 to 75) being capable of selecting a control address depending on whether the reproduction data of the recording medium (1) is data recorded by the first control address or data recorded by the second control address.
Claim 7
Dependent Claim
67 words
Digital data reproduction apparatus according to claim 5, comprising means supplied with the reproduced data for detecting whether it is data encoded in accordance with the first control address or the second control address by reproducing the control address recorded on the recording medium (1) indicating whether convolution encoding of the data has been effected or complete encoding of the data in a sector has been effected.
Claim 8
Dependent Claim
73 words
Digital data reproduction apparatus according to claim 5 or claim 6, comprising deinterleave means responsive to the reproduced control address for deinterleaving the reproduced data, and wherein the first control address causes the deinterleave means to deinterleave the input data of which the convolution encoding has been effected and the second control address causes the deinterleave means to deinterleave the input data of which the complete encoding in a sector has been effected.
Claim 9
Dependent Claim
64 words
A recording medium (1) on to which digital data has been recorded, the recorded data being in the form of either convolution encoded input data or data which is completely encoded in a sector of input data, and a selection signal indicating whether the recorded data is in the form of the convolution encoded data or of the data completely encoded in the sector.
Claim 10
Dependent Claim
64 words
A recording medium (1) on to which digital data has been recorded, the recorded data being in the form of either convolution encoded input data or data which is completely encoded in a sector of input data, and a selection signal indicating whether the recorded data is in the form of the convolution encoded data or of the data completely encoded in the sector.
Claim 11
Dependent Claim
16 words
A recording medium (1) according to claim 8, wherein the sector is composed of 98 frames.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.