Patent EP0399853A2 successfully refreshed from Google Patents.
EP0399853A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording and reproducing device
Assignee: Sharp Corp
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Filing: 1990-05-25
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Granted: —
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Expires: 2010-05-25
Abstract
Abstract A recording and reproducing device, which records and reproduces information on and from a rewritable recording medium having absolute addresses and comprising an information recording area wherein information entered from external devices is recorded and a TOC area wherein additional information with respect to the information recorded in the information recording area is recorded, comprises: an optical head and an electromagnet for recording information in the information recording area, and for recording in the TOC area the absolute addresses indicating at least the recording positions of information as additional information every time the information is recorded in the information recording area; a display section for graphically displaying the recorded and unrecorded ranges of the information recording area independently according to the absolute addresses recorded in the TOC area with respect to the recording positions of each piece of information; warning means for warning to show that a position has already been occupied by referring to the additional information recorded in the TOC area when it is instructed to record new information in the position of the information recording area where another information has already been recorded; first editing means for erasing the additional information from the TOC area with respect to any information within the information recording area when the information is completely erased therefrom; and second editing means for detecting a remaining amount of any information when the information is partially erased from the information recording area, for recording in the TOC area absolute addresses indicating the recording positions of the remaining information part in the TOC area, after replacing the absolute addresses indicating the recording positions of its original information with those indicating the recording positions of the remaining information part when the remaining amount is not less than a predetermined value, and for erasing the additional information of the partially erased information from the TOC area when the remaining amount of the partially erased information is less than the predetermined value. With the arrangement, even if the stored additional information is lost due to the cut-off of the power source, in the recording operation thereafter, the user can accurately recognize the recording conditions of the information recording area, and such trouble as to record another information overlapping with information already recorded is perfectly prevented, and further the user can recognize space domains easily and accurately.
Inventors
- 👤 Shigeo Terashima
- 👤 Toshihisa Deguchi
- 👤 Kunio Kojima
- 👤 Shigemi Maeda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 12:42
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/012; G11B27/00; G11B27/10; G11B27/11; G11B11/00; G11B11/10; G11B11/105; G11B11/10502; G11B11/10595; G11B19/00; G11B19/02; G11B19/04; G11B27/02; G11B27/031; G11B27/034; G11B27/036; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B27/34; G11B27/36; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2525; G11B2220/60; G11B2220/65
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
316 words
A recording and reproducing device, which records and reproduces information on and from a rewritable recording medium having absolute addresses and comprising an information recording area wherein information entered from external devices is recorded and a TOC area wherein additional information with respect to the information recorded in the information recording area is recorded, comprising: recording means for recording information in the information recording area and for recording in the TOC area the absolute addresses indicating at least the recording positions of the information as additional information; display means for graphically displaying the recorded and unrecorded ranges of the information recording area independently according to the absolute addresses recorded in the TOC area with respect to the recording positions of each piece of information; warning means for warning to show that a position has already been occupied by referring to the additional information recorded in the TOC area when it is instructed to record new information in the position of the information recording area where another information has already been recorded; first editing means for erasing the additional information in the TOC area with respect to any information within the information recording area when it is completely erased therefrom; and second editing means for detecting a remaining amount of any information when the information is partially erased from the information recording area, for recording in the TOC area the absolute addresses indicating the recording positions of the remaining information part after replacing the absolute addresses indicating the recording positions of its original information with those indicating the recording positions of the remaining information part by judging the remaining information part as one piece of information, when the remaining amount is not less than a predetermined value, and for erasing the additional information of the partially erased information from the TOC area, when the remaining amount of the partially erased information is less than the predetermined value.
Claim 2
Dependent Claim
316 words
A recording and reproducing device, which records and reproduces information on and from a rewritable recording medium having absolute addresses and comprising an information recording area wherein information entered from external devices is recorded and a TOC area wherein additional information with respect to the information recorded in the information recording area is recorded, comprising: recording means for recording information in the information recording area and for recording in the TOC area the absolute addresses indicating at least the recording positions of the information as additional information; display means for graphically displaying the recorded and unrecorded ranges of the information recording area independently according to the absolute addresses recorded in the TOC area with respect to the recording positions of each piece of information; warning means for warning to show that a position has already been occupied by referring to the additional information recorded in the TOC area when it is instructed to record new information in the position of the information recording area where another information has already been recorded; first editing means for erasing the additional information in the TOC area with respect to any information within the information recording area when it is completely erased therefrom; and second editing means for detecting a remaining amount of any information when the information is partially erased from the information recording area, for recording in the TOC area the absolute addresses indicating the recording positions of the remaining information part after replacing the absolute addresses indicating the recording positions of its original information with those indicating the recording positions of the remaining information part by judging the remaining information part as one piece of information, when the remaining amount is not less than a predetermined value, and for erasing the additional information of the partially erased information from the TOC area, when the remaining amount of the partially erased information is less than the predetermined value.
Claim 3
Dependent Claim
53 words
A recording and reproducing device as set forth in claim 1, wherein said recording means records information in the information recording area, and records absolute addresses indicating at least the recording positions of the information in the TOC area as additional information every time the information is recorded in the information recording area.
Claim 4
Dependent Claim
30 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the absolute addresses are prerecorded in the form of wobbling guiding grooves on rewritable disk.
Claim 5
Dependent Claim
31 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the absolute addresses are recorded by the use of pits or grooves which are mechanically formed.
Claim 6
Dependent Claim
25 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the rewritable recording medium includes optical cards and magnetic tapes.
Claim 7
Dependent Claim
31 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the rewritable recording medium includes magneto-optical disk which performs recording and erasing by utilizing magneto-optical effect.
Claim 8
Dependent Claim
45 words
A recording and reproducing device as set forth in claim 6, wherein the recording means includes an optical head for applying a light beam to the magneto-optical disk and an electromagnet for applying external magnetic fields to the magneto-optical disk in response to recording signals.
Claim 9
Dependent Claim
31 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the rewritable recording medium includes rewritable disks which perform recording and erasing by utilizing phase transition.
Claim 10
Dependent Claim
32 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the rewritable recording medium includes Direct Read After Write type disks capable of recording information only once.
Claim 11
Dependent Claim
37 words
A recording and reproducing device as set forth in claim 8 or claim 9, wherein the recording means includes an optical head for applying a laser beam to the disk so as to record and reproduce information.
Claim 12
Dependent Claim
46 words
A recording and reproducing device as set forth in claim 1 or claim 2, the display means includes a display section for graphically displaying the recorded ranges and unrecorded ranges of the information recording area separately by using bars with different contrasts, colors or the like.
Claim 13
Dependent Claim
60 words
A recording and reproducing device as set forth in claim 6, claim 8 or claim 9, wherein the display means includes a display section, comprising a disc shaped display modelled after the disk, for graphically displaying the recorded ranges and unrecorded ranges of the information recording area separately in the disc with different contrasts, colors or the like each other.
Claim 14
Dependent Claim
33 words
A recording and reproducing device as set forth in claim 1 or claim 2, wherein the warning means is designed to give warning by a voice, warning sound, predetermined display or other methods.
Claim 15
Dependent Claim
60 words
A recording method for information in a recording and reproducing device comprising the steps of: recording information in an information recording area; and recording additional information, comprising the absolute addresses indicating the recording start position and recording end position of the information, in a TOC area immediately after the additional information has been stored in a buffer memory for TOC.
Claim 16
Dependent Claim
60 words
A recording method for information in a recording and reproducing device comprising the steps of: recording information in an information recording area; and recording additional information, comprising the absolute addresses indicating the recording start position and recording end position of the information, in a TOC area immediately after the additional information has been stored in a buffer memory for TOC.
Claim 17
Dependent Claim
140 words
An editing processing method for additional information in a TOC area of a recording and reproducing device, comprising the steps of: erasing additional information from the TOC area with respect to information when the information recorded in an information recording area has been completely erased; detecting remaining amount of the information partially left over when information recorded in the information recording area is partially erased; recording absolute addresses indicating the recording positions of a remaining information part in the TOC area after replacing the absolute addresses indicating the recording positions of its original information with those indicating the recording positions of the remaining information part when the remaining amount is not less than a predetermined value; and erasing additional information of the information from the TOC area when the remaining amount of the information is less than the predetermined value.
Claim 18
Dependent Claim
140 words
An editing processing method for additional information in a TOC area of a recording and reproducing device, comprising the steps of: erasing additional information from the TOC area with respect to information when the information recorded in an information recording area has been completely erased; detecting remaining amount of the information partially left over when information recorded in the information recording area is partially erased; recording absolute addresses indicating the recording positions of a remaining information part in the TOC area after replacing the absolute addresses indicating the recording positions of its original information with those indicating the recording positions of the remaining information part when the remaining amount is not less than a predetermined value; and erasing additional information of the information from the TOC area when the remaining amount of the information is less than the predetermined value.
Claim 19
Dependent Claim
72 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including warning means for providing a user-sensible warning when a position selected for the recording of new information in said information recording area is already occupied.
Claim 20
Dependent Claim
72 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including warning means for providing a user-sensible warning when a position selected for the recording of new information in said information recording area is already occupied.
Claim 21
Dependent Claim
82 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including graphic display means which includes a visual representation of the total time capacity of the information recording area, and which displays on said visual representation the recorded and unrecorded portions of said information recording area.
Claim 22
Dependent Claim
82 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including graphic display means which includes a visual representation of the total time capacity of the information recording area, and which displays on said visual representation the recorded and unrecorded portions of said information recording area.
Claim 23
Dependent Claim
127 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including editing means operable so that if a remaining part of an existing recorded information which is partly erased by the recording of new information, is smaller than a predetermined amount, the address data relating to said existing recorded information is erased from said address data recording area whereas if it is equal to or greater than said predetermined amount, said address data is revised so as to identify said remaining part instead of the whole of said existing recorded information.
Claim 24
Dependent Claim
127 words
Apparatus for recording and reproducing on and from a rewritable recording medium having an information recording area for the information itself and an address data recording area for address data identifying the portion or portions of the information recording area occupied by such information, the apparatus including editing means operable so that if a remaining part of an existing recorded information which is partly erased by the recording of new information, is smaller than a predetermined amount, the address data relating to said existing recorded information is erased from said address data recording area whereas if it is equal to or greater than said predetermined amount, said address data is revised so as to identify said remaining part instead of the whole of said existing recorded information.
References Cited (Backward Citations)
No citation records indexed.
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