Patent EP0800172A2 successfully refreshed from Google Patents.
EP0800172A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Information recording method and apparatus with additional recording function
Assignee: Pioneer Corp
•
Filing: 1997-04-01
•
Granted: —
•
Expires: 2017-04-01
Abstract
Abstract An information recording apparatus (S) includes: a unit (8, 9) for applying a predetermined processing to record information (S R ) divided into error correction units (30) and generating processed record information (S RE ) including a plurality of record units (42); a unit (2) for recording the processed record information on an information record medium (1); and a unit (2) for recording, after the recording of the processed record information, predetermined dummy information of an information amount corresponding for the plurality of record units, on the information record medium, subsequent to the processed record information recorded.
Inventors
- 👤 Kazuo c/o Pioneer Electronic Corporation Kuroda
- 👤 Toshio c/o Pioneer Electronic Corporation Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:15
CPC Classifications
G; G11; G11B; G11B20/00; G11B20/10; G11B20/18; G11B20/1866; G11B20/12; G11B20/1217; G11B20/1833; G11B27/00; G11B27/02; G11B27/031; G11B27/034; G11B27/10; G11B27/19; G11B27/24; G11B27/28; G11B27/30; G11B27/3027; G11B2020/10898; G11B2020/1218; G11B2020/1222; G11B2020/1264; G11B2020/1265; G11B2020/1267; G11B2020/1274; G11B2020/1277; G11B2020/1285; G11B2020/1287; G11B2020/1288; G11B2020/1291; G11B2020/1292; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/215; G11B2220/218; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/2554; G11B2220/2562
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
89 words
An information recording method comprising the steps of: applying a predetermined processing to record information (S R ) divided into error correction units (30) and generating processed record information (S RE ) comprising a plurality of record units (42); recording the processed record information on an information record medium (1); and recording, after the recording of the processed record information, predetermined dummy information (44) for an information amount corresponding to the plurality of record units (42), on the information record medium, subsequent to the processed record information recorded (40).
Claim 2
Dependent Claim
93 words
A method according to claim 1, further comprising the step of overwriting dummy information comprising the steps of: detecting a head position (N+1, 21) of an old dummy information previously recorded on said information record medium; and recording new dummy information on said information record medium, based on the detected head position, such that a total information amount of the old dummy information (21, 44) after the recording of the new dummy information and the new dummy information (42) recorded is no more than an information amount of one error correction unit (30).
Claim 3
Dependent Claim
37 words
A method according to claim 2, wherein said processed record information recording step further comprising the step of recording new record information on said information recording medium from a position subsequent to the new dummy information recorded.
Claim 4
Dependent Claim
28 words
A method according to claim 2, wherein said dummy information recording step records the new dummy information over a part of the old dummy information (44) previously recorded.
Claim 5
Dependent Claim
141 words
A method according to claim 1, wherein said processed record information recording step comprising the steps of: detecting a head position (N+1, 21) of the dummy information previously recorded on said information record medium (1); determining a recording start position from which new record information is recorded on the basis of the detected head position of the dummy information and an information amount in a single error correction block which is a minimum information unit of error correction; calculating an information removal amount corresponding to an information capacity in an area from the head position to the recording start position; removing the record information corresponding to the calculated removal amount from a head of the record information so as to produce an actual record information; and recording the actual record information from the recording start position onto said information recording medium.
Claim 6
Dependent Claim
29 words
A method according to claim 5, wherein said recording start position determining step determines the recording start position within an area where the dummy information (44) is previously recorded.
Claim 7
Dependent Claim
94 words
An information recording apparatus (S) comprising: means (8, 9) for applying a predetermined processing to record information (S R ) divided into error correction units (30) and generating processed record information (S RE ) comprising a plurality of record units (42); means (2) for recording the processed record information on an information record medium (1); and means (2) for recording, after the recording of the processed record information, predetermined dummy information of an information amount corresponding for the plurality of record units, on said information record medium, subsequent to the processed record information recorded.
Claim 8
Dependent Claim
93 words
An apparatus according to claim 7, further comprising means for overwriting dummy information comprising: means for detecting a head position (N+1, 21) of an old dummy information previously recorded on said information record medium; and means for recording new dummy information on said information record medium, based on the detected head position, such that a total information amount of the old dummy information (21, 44) after the recording of the new dummy information and the new dummy information (42) recorded is no more than an information amount of one error correction unit (30).
Claim 9
Dependent Claim
37 words
An apparatus according to claim 8, wherein said processed record information recording means further comprising means (2) for recording new record information on said information recording medium from a position subsequent to the new dummy information recorded.
Claim 10
Dependent Claim
28 words
An apparatus according to claim 7, wherein said dummy information recording means records the new dummy information over a part of the old dummy information (44) previously recorded.
Claim 11
Dependent Claim
150 words
An apparatus according to claim 7, wherein said processed record information recording means comprising: means (8) for detecting a head position of the dummy information previously recorded on said information record medium; means (8) for determining a recording start position from which the new record information is recorded on the basis of the detected head position of the dummy information and an information amount in a single error correction block which is a minimum information unit of error correction; means (8) for calculating an information removal amount corresponding to an information capacity in an area from the head position to the recording start position; means (8) for removing the record information corresponding to the calculated removal amount from a head of the record information to produce an actual record information; and means (2, 8) for recording the actual record information from the recording start position onto said information recording medium.
Claim 12
Dependent Claim
28 words
An apparatus according to claim 11, wherein said recording start position determining means determines the recording start position within an area where the dummy information is previously recorded.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.