EP0571191A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus and method of reproducing and/or recording a recording medium
Assignee: Sony Corp
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Filing: 1993-05-19
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Granted: —
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Expires: 2013-05-19
Abstract
Abstract A recording and/or reproducing apparatus records and/or reproduces a recording medium (1) on which musical information is recorded discretely together with management information for managing the recorded musical information. The apparatus calculates, based on the management information, a playing time of each musical piece, a total playing time of all of the musical pieces recorded on the recording medium, a remaining time for which the recording medium can be further recorded, and a remaining number of musical pieces which can be further recorded onto the recording medium, and displays the result of the calculation.
Inventors
- 👤 Masayuki Takezawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 16:21
CPC Classifications
G; G11; G11B; G11B7/00; G11B19/00; G11B19/02; G11B27/00; G11B27/02; G11B27/031; G11B27/034; G11B27/10; G11B27/102; G11B27/105; G11B27/11; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B27/34; G11B33/00; G11B33/10; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2525; G11B2220/2529; G11B2220/60; G11B2220/65
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
193 words
A reproducing and/or recording apparatus for reproducing and/or recording a recording medium (1) which has a plurality of recorded and/or recordable areas (TN) each constituted from a single continuous segment (T1, T2) or a plurality of discrete segments (T4, T5) and has recorded thereon a management table including a plurality of part tables ((OO) to (FF)) each of which has a start address and an end address of a segment on the recording medium and link information indicative of another segment to be linked and a corresponding table including data (P-DFA, P-EMPTY, P-FRA) indicating an absolute position of one of the part tables on the management table, said apparatus comprising: data read-out means (3, 7, 8) for reading out the management table data on the recording medium; storage means (21) for storing therein the management table data read out by said read-out means; calculation means (11) for successively tracing the link information of the management table data stored in said storage means to calculate a time or a program number; and display means (20) for displaying the time or the program number based on a result of the calculation by said calculation means.
Claim 2
Dependent Claim
205 words
A reproducing and/or recording apparatus for reproducing and/or recording a recording medium which has recorded thereon program data each of which is recorded on a single continuous segment or a plurality of discrete segments and a management table for managing the program data, the management table including a plurality of part tables each of which has a start address and an end address of a segment on the recording medium and link information indicative of another segment to be linked and a corresponding table including data indicating an absolute position of one of the part tables, said apparatus comprising: data read-out means for reading out the data recorded on the recording medium; storage means for storing therein the management table data read out by said data read-out means; calculation means for calculating, in accordance with the management table data stored in said storage means, a sum total of data lengths of segments indicated by all of those part tables successively linked in accordance with the link information beginning with the part table indicated by the corresponding table indicating data and for converting the total value obtained by the calculation into time information; and display means for displaying thereon the time information from said calculation means.
Claim 3
Independent Claim
207 words
A method of calculating the time duration of a recorded area on a recording medium having at least one recordable area, at least one recorded area and a management area, the recordable area and the recorded area being constituted as a single continuous segment or a plurality of separated segments, the management table including a plurality of part tables and indication data indicating absolute address data of the head part table in the plurality of part tables, the plurality of part tables having start address data of the segment, end address data of the segment and link data indicating a next segment which is linked to a preceding segment, the method comprising steps of: subtracting the start address from the end address of the part table on the management table designated by the indicating data; adding " 1 " and a current total value of segment data to said difference value obtained at the subtracting step to yield a new total value of segment data; comparing the link data of the part table with a predetermined identification code; and converting, when the result at the comparing step is coincidence between the link data and the predetermined identification code, the total value of segment data into time information.
Claim 4
Dependent Claim
16 words
A method according to claim 3, wherein the predetermined identification code is OO in hexadecimal notation.
Claim 5
Dependent Claim
226 words
A reproducing and/or recording apparatus for reproducing and/or recording a recording medium which has recorded thereon program data each of which is recorded on a single continuous segment or a plurality of discrete segments and a management table for managing the program data, the management table including a plurality of part tables each of which has a start address and an end address of a segment on the recording medium and link information indicative of another segment to be linked and a corresponding table including data for each of the program data indicating an absolute position of the corresponding part table, said apparatus comprising: data read-out means for reading out the data recorded on the recording medium; storage means for storing therein the management table data read out by said data read-out means; calculation means for calculating, in accordance with the management table data stored in said storage means, a sum total of data lengths of segments indicated by all of those part tables successively linked in accordance with the link information beginning with the part table indicated by each of the corresponding table indicating data, adding all of the total values of data lengths calculated for the individual program data and converting the sum value obtained by the addition into time information; and display means for displaying thereon the time information from said calculation means.
Claim 6
Dependent Claim
208 words
A reproducing and/or recording apparatus for reproducing and/or recording a recording medium which has a plurality of recorded and/or recordable areas each constituted from a single continuous segment or a plurality of discrete segments and has recorded thereon a management table including a plurality of part tables each of which has a start address and an end address of a segment on the recording medium and link information indicative of another segment to be linked and a corresponding table including data indicating an absolute position of one of the part tables in the recordable areas on the management table, said apparatus comprising: data read-out means for reading out the management table data on the recording medium; storage means for storing therein the management table data read out by said read-out means; calculation means for calculating, in accordance with the management table data stored in said storage means, a sum total of data lengths of segments indicated by all of those part tables successively linked in accordance with the link information beginning with the part table indicated by the corresponding table indicating data and for converting the total value obtained by the calculation into time information; and display means for displaying thereon the time information from said calculation means.
Claim 7
Dependent Claim
202 words
A recordable time information calculating method for a recording medium having at least one recordable area, and a management table, the recordable area being constituted as a single continuous segment or a plurality of separated segments, the management table including a plurality of part tables and indication data indicating absolute address data of the head part table in the plurality of part tables, the plurality of part tables having start address data of the segment, end address data of the segment and link data indicating next segment which is linked to precedent segment, the method comprising steps of: subtracting the start address from the end address of the part table on the management table designated by the indicating data; adding " 1 " and a current total value of segment data to a difference value obtained at the subtracting step to yield a new total value of segment data; comparing the link data of the part table with a predetermined identification code; and converting, when the result at the comparing step is coincidence between the link data and the predetermined identification code, the total value of segment data into time information of the recording medium, and displaying the result of the calculation.
Claim 8
Dependent Claim
16 words
A method according to claim 7, wherein the predetermined identification code is OO in hexadecimal notation.
Claim 9
Dependent Claim
224 words
A reproducing and/or recording apparatus for reproducing and/or recording a recording medium which has one or a plurality of recorded areas and one or a plurality of recordable areas each of which is constituted from a single continuous segment or a plurality of discrete segments and has recorded thereon a management table for managing the segments of the recorded and the recordable areas, which management table includes a plurality of part tables each of which has a start address and an end address of a segment on the recording medium and link information indicative of another segment to be linked and part table indicating data for the recorded area, the recordable area or the unusable part table indicating absolute positions of the part tables on the management table, said apparatus comprising: data read-out means for reading out the management table data on the recording medium; storage means for storing therein the management table data read out by said read-out means; calculation means for counting, in accordance with the management table data stored in said storage means, the-number of all of those part tables successively linked in accordance with the link information individually beginning with the part tables indicated by the corresponding table indicating data for the unusing part table; and display means for displaying thereon the recordable program number information from said calculation means.
Claim 10
Dependent Claim
48 words
A reproducing and/or recording apparatus according to claim 9, wherein said calculation means executes its counting operation including the steps of: comparing the part table indicating data with a predetermined identification code; and counting the number of part tables until the result at the comparing step reveals coincidence.
Claim 11
Dependent Claim
19 words
A reproducing and/or recording apparatus according to claim 10, wherein the predetermined identification code is OO in hexadecimal notation.
References Cited (Backward Citations)
No citation records indexed.
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