EP0089020A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data processing apparatus with means for recording data by moving a head to a plurality of tracks
Assignee: Toshiba Corp
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Filing: 1983-03-10
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Granted: —
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Expires: 2003-03-10
Abstract
Abstract A data recording apparatus is provided which has a recording/reproduction head (3) for recording data on or reproducing the data from a recording medium, a moving mechanism (92, 93) for moving the recording/reproducing head (3) on the recording medium, an error detectors (78,85) for detecting an error in accordance with a signal from the recording/reproduction head (3) in the recording mode, and a control section (21) for detecting that an access to a recording start track cannot be made by the recordingl reproduction head (3) for recording data, for determining a track number in the vicinity of the recording start track by the recording/reproduction head (3) in accordance with a detection result, and for controlling a moving mechanism (92, 93) to move the recording/reproduction head (3) to a target track ahead of a predetermined number of tracks which correspond to a distance between the target track and the recording start track without performing recording of data on the predetermined number of tracks in accordance with a detection result from a tracking error detector (78, 85).
Inventors
- 👤 Katsumi Kimoto
- 👤 Atsushi Ishihara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/02; G11B19/04; G11B21/00; G11B21/02; G11B21/08; G11B21/081; G11B27/00; G11B27/36; G11B7/00; G11B7/004; G11B7/0045
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
285 words
A data processing apparatus having: a recording/reproduction head means (3) for recording data on or reproducing the data from a recording medium on which a plurality of tracks are formed at a predetermined track pitch; moving means (11), connected to said recording/reproduction head means (3), for moving said recording/reproducing head means (3) on the recording medium; position detecting means (13) having a scale of a predetermined scale pitch corresponding to positions of the recording medium; scale translating means (17) for translating a desired track number to a scale value corresponding to a scale value detected by said position detecting means (13); and driving means (22), connected to said scale translating means (17), said position detecting means (13) and said moving means (11), for driving said moving means until the scale value from said scale translating means (17) coincides with the scale value detected by said position detecting means (13), characterized in that there is provided controlling means (21), connected to said recording/reproduction head means (3), said position detecting means (11), said scale translating means (17), and said driving means (22), for detecting that an access to a recording start track cannot be made by said recording/reproduction head means (3) for recording the data, for determining a track number in the vicinity of the recording start track by said recording/reproduction head means (3) in accordance with a detection result, and for controlling said recording/reproduction head means (3), said position detecting means (11), said scale translating means (17) and said driving means (22) so as to move said recording/reproduction head means (3) to a target track ahead of a predetermined number of tracks which correspond to a distance between the target track and the recording start track.
Claim 2
Dependent Claim
285 words
A data processing apparatus having: a recording/reproduction head means (3) for recording data on or reproducing the data from a recording medium on which a plurality of tracks are formed at a predetermined track pitch; moving means (11), connected to said recording/reproduction head means (3), for moving said recording/reproducing head means (3) on the recording medium; position detecting means (13) having a scale of a predetermined scale pitch corresponding to positions of the recording medium; scale translating means (17) for translating a desired track number to a scale value corresponding to a scale value detected by said position detecting means (13); and driving means (22), connected to said scale translating means (17), said position detecting means (13) and said moving means (11), for driving said moving means until the scale value from said scale translating means (17) coincides with the scale value detected by said position detecting means (13), characterized in that there is provided controlling means (21), connected to said recording/reproduction head means (3), said position detecting means (11), said scale translating means (17), and said driving means (22), for detecting that an access to a recording start track cannot be made by said recording/reproduction head means (3) for recording the data, for determining a track number in the vicinity of the recording start track by said recording/reproduction head means (3) in accordance with a detection result, and for controlling said recording/reproduction head means (3), said position detecting means (11), said scale translating means (17) and said driving means (22) so as to move said recording/reproduction head means (3) to a target track ahead of a predetermined number of tracks which correspond to a distance between the target track and the recording start track.
Claim 3
Dependent Claim
63 words
An apparatus according to claim 1, characterized in that the predetermined number of tracks corresponding to the distance between the recording start track and the track in the vicinity of the recording start track corresponds to a sum of the distance between the recording start track and the track corresponding to said recording/reproducing head and a width of a predetermined number of tracks.
Claim 4
Dependent Claim
170 words
An apparatus according to claim 1, characterized in that said controlling means comprises a programmable microprocessor connected to said scale translating means, said position detecting means and said moving means, said programmable microprocessor including a central processing unit for receiving data to compute the track pitch data and a read-only memory device for storing a permanent program for functions of said central processing unit, thereby allowing said controlling means to execute a predetermined function, wherein said controlling means detects that the recording start track cannot be accessed by said recording/reproduction head means for recording the data, determines the track number in the vicinity of the recording start track by said recording/reproduction head means in accordance with the detection result, and controls said recording/reproduction head means, said position detecting means, said scale translating means and said driving means so as to move said recording/reproduction head means to the target track ahead of the predetermined number of tracks which corresponds to the distance between the target track and the recording start track.
Claim 5
Dependent Claim
63 words
An apparatus according to claim 3, characterized in that the predetermined number of tracks corresponding to the distance between the recording start track and the track in the vicinity of the recording start track corresponds to a sum of the distance between the recording start track and the track corresponding to said recording/reproducing head and a width of a predetermined number of tracks.
Claim 6
Dependent Claim
158 words
A data recording apparatus, having: a recording/reproduction head means (3) for recording data on or reproducing the data from a recording medium on which a plurality of tracks are formed at a predetermined track pitch; and moving means (92, 93), connected to said recording/reproduction head means (3), for moving said recording/reproducing head means (3) on the recording medium, characterized in that there are provided: error detecting means (78, 85), connected to said recording/reproduction head means (3), for detecting an error in accordance with a signal from said recording/reproduction head means (3) in a recording mode; and controlling means (77), connected to said recording/reproduction head means (3), said moving means (92, 93), and said error detecting means (78, 85), for controlling said moving means (92, 93) such that said recording/reproduction head means (3) is moved by a distance corresponding to the predetermined number of tracks in accordance with a detection result from said error detecting means without performing recording.
Claim 7
Dependent Claim
158 words
A data recording apparatus, having: a recording/reproduction head means (3) for recording data on or reproducing the data from a recording medium on which a plurality of tracks are formed at a predetermined track pitch; and moving means (92, 93), connected to said recording/reproduction head means (3), for moving said recording/reproducing head means (3) on the recording medium, characterized in that there are provided: error detecting means (78, 85), connected to said recording/reproduction head means (3), for detecting an error in accordance with a signal from said recording/reproduction head means (3) in a recording mode; and controlling means (77), connected to said recording/reproduction head means (3), said moving means (92, 93), and said error detecting means (78, 85), for controlling said moving means (92, 93) such that said recording/reproduction head means (3) is moved by a distance corresponding to the predetermined number of tracks in accordance with a detection result from said error detecting means without performing recording.
Claim 8
Dependent Claim
55 words
An apparatus according to claim 5, characterized in that said controlling means controls to move said recording/reproduction head means by the distance corresponding to the predetermined number of tracks in accordance with the detection result from said error detecting means without performing recording so as to record dummy data on the predetermined number of tracks.
Claim 9
Dependent Claim
108 words
An apparatus according to claim 5, characterized in that said controlling means comprises a programmable microprocessor connected to said recording/reproduction head, said moving means and said error detecting means, said programmable microprocessor including a central processing unit for receiving data to compute the track pitch data and a read-only memory device for storing a permanent program for functions of said central processing unit, thereby allowing said controlling means to execute a predetermined function, wherein said controlling controls said moving means so as to move said recording/reproduction head means without performing recording for the predetermined number of tracks in accordance with the detection result from said error detecting means.
Claim 10
Dependent Claim
55 words
An apparatus according to claim 7, characterized in that said controlling means controls to move said recording/reproduction head means by the distance corresponding to the predetermined number of tracks in accordance with the detection result from said error detecting means without performing recording so as to record dummy data on the predetermined number of tracks.
References Cited (Backward Citations)
No citation records indexed.
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