EP0227380A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Information recording medium and process for reproducing information therefrom
Assignee: Canon Inc
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Filing: 1986-12-10
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Granted: —
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Expires: 2006-12-10
Abstract
Abstract An information recording card has plural information tracks (3) approximately perpendicular to the direction of information arrangement in each track, and reading head alignment patterns (202) recorded along the extention of the direction of plural information tracks. An information regenerating process from the information recording card has a step of positioning a reading head by relative movement of the head and the alignment pattern, and a step of moving the reading head relative to the plural information tracks, wherein the relative speed in the former step is lower than that in the latter.
Inventors
- 👤 Koyo Hasegawa
- 👤 Kiyonobu Endo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:35
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/2407; G11B7/24085; G11B21/00; G11B21/02; G11B21/08; G11B21/081; G11B23/00; G11B23/38; G11B23/42; G11B7/002; G11B7/0033; G11B7/004; G11B7/005; G11B7/08; G11B7/085; G11B7/08505; G11B7/09; G11B7/0938
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
42 words
An information recording medium comprising: plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of each information track; and a reproducing head positioning pattern, formed along the direction of arrangement of said plural information tracks.
Claim 2
Dependent Claim
42 words
An information recording medium comprising: plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of each information track; and a reproducing head positioning pattern, formed along the direction of arrangement of said plural information tracks.
Claim 3
Dependent Claim
70 words
An information reproducing process comprising the steps of: positioning an information reproducing head by a relative movement of a reproducing head positioning pattern formed on an information recording medium and said reproducing head; and reproducing information of plural information tracks by a movement of said reproducing head relative to said plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of said information track.
Claim 4
Dependent Claim
70 words
An information reproducing process comprising the steps of: positioning an information reproducing head by a relative movement of a reproducing head positioning pattern formed on an information recording medium and said reproducing head; and reproducing information of plural information tracks by a movement of said reproducing head relative to said plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of said information track.
Claim 5
Dependent Claim
27 words
An information recording medium according to Claim l, wherein said plural information tracks are arranged also in the direction of array of information of said information track.
Claim 6
Dependent Claim
33 words
An information recording medium according to Claim 3, further comprising a separating area for separating and identifying each information track from another information track neighboring in the direction of array of information thereof.
Claim 7
Dependent Claim
31 words
An information recording medium according to Claim l, wherein said reproducing head positioning pattern is composed of a uniform pattern continuous in the direction of arrangement of said plural information tracks.
Claim 8
Dependent Claim
17 words
An information recording medium according to Claim l, comprising a plurality of said reproducing head positioning patterns.
Claim 9
Dependent Claim
108 words
An information reproducing process comprising the steps of: positioning an information reproducing head by a relative movement of a reproducing head positioning pattern formed on an information recording medium and an information reproducing head; reproducing information from plural information tracks by a movement of said reproducing head, relative to said plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of said information track, in said direction of arrangement; and wherein the relative speed in said direction of arrangement in said positioning step is so controlled as not to exceed the relative speed in said direction of arrangement in said reproducing step.
Claim 10
Dependent Claim
108 words
An information reproducing process comprising the steps of: positioning an information reproducing head by a relative movement of a reproducing head positioning pattern formed on an information recording medium and an information reproducing head; reproducing information from plural information tracks by a movement of said reproducing head, relative to said plural information tracks arranged in a direction substantially perpendicular to the direction of array of information of said information track, in said direction of arrangement; and wherein the relative speed in said direction of arrangement in said positioning step is so controlled as not to exceed the relative speed in said direction of arrangement in said reproducing step.
Claim 11
Dependent Claim
92 words
An information reproducing process comprising the steps of: directing an information reproducing head to a reproducing head positioning pattern formed on an information recording medium; causing a relative movement of said head positioning pattern and said reproducing head; detecting the position of said head positioning pattern on a sensor of said reproducing head; positioning said reproducing head in response to a signal obtained in said detecting step; and reproducing information of plural information tracks by a relative movement of said reproducing head in the direction of arrangement of said plural information tracks.
Claim 12
Dependent Claim
92 words
An information reproducing process comprising the steps of: directing an information reproducing head to a reproducing head positioning pattern formed on an information recording medium; causing a relative movement of said head positioning pattern and said reproducing head; detecting the position of said head positioning pattern on a sensor of said reproducing head; positioning said reproducing head in response to a signal obtained in said detecting step; and reproducing information of plural information tracks by a relative movement of said reproducing head in the direction of arrangement of said plural information tracks.
Claim 13
Dependent Claim
85 words
An information recording medium comprising: plural information tracks arranged in a direction of array of information of said information track and also in a direction substantially perpendicular to said direction of array of information; a separating area provided for separating and identifying each of said plural information tracks from another information track neighboring in said direction of array of information; and a reproducing head positioning pattern composed of an external extention, at least in a direction, of said separating area, beyond the neighboring information tracks.
Claim 14
Dependent Claim
85 words
An information recording medium comprising: plural information tracks arranged in a direction of array of information of said information track and also in a direction substantially perpendicular to said direction of array of information; a separating area provided for separating and identifying each of said plural information tracks from another information track neighboring in said direction of array of information; and a reproducing head positioning pattern composed of an external extention, at least in a direction, of said separating area, beyond the neighboring information tracks.
Claim 15
Dependent Claim
31 words
l0. An information recording medium according to Claim 9, wherein said reproducing head positioning pattern is composed of a uniformly continuous pattern in the direction of extention of said separating area.
Claim 16
Dependent Claim
37 words
An information recording medium according to Claim 9, wherein said separating areas are alternately extended in the opposite directions, with respect to a direction substantially perpendicular to the direction of array of information of the information tracks.
Claim 17
Dependent Claim
70 words
An information recording medium according to Claim l0, wherein said separating areas are extended in mutually opposite directions substantially perpendicular to the direction of array of information of the information tracks, and additional information tracks are provided in the areas defined between the neighboring extended portions in each of said directions in such a manner that said areas in both directions are filled with said information tracks in crisscross manner.
Claim 18
Dependent Claim
42 words
A memory card comprising: plural information tracks arranged in the longitudinal and transversal directions; and plural reproducing head positioning patterns, formed along the longitudinal direction of said card and provided in the vicinity of the first ones of said plural information tracks.
Claim 19
Dependent Claim
42 words
A memory card comprising: plural information tracks arranged in the longitudinal and transversal directions; and plural reproducing head positioning patterns, formed along the longitudinal direction of said card and provided in the vicinity of the first ones of said plural information tracks.
Claim 20
Dependent Claim
34 words
A memory card according to Claim l3, further comprising a separating area for separating and identifying each of said plural information tracks from another information track neighboring in the transversal direction of said card.
Claim 21
Dependent Claim
32 words
A memory card according to Claim l4, wherein said reproducing head positioning pattern is formed adjacent to or in the vicinity of said separating area in the longitudinal direction of said card.
Claim 22
Dependent Claim
63 words
A memory card comprising: an area comprising plural information tracks arranged two-dimensionally in said area; and an information reproducing head introduction area formed close to or adjacent to the first-mentioned area, whereby an information reproducing head performs a relative movement to said introduction area and then a relative movement to said first-mentioned area to regenerate the information stored in said plural information tracks.
Claim 23
Dependent Claim
63 words
A memory card comprising: an area comprising plural information tracks arranged two-dimensionally in said area; and an information reproducing head introduction area formed close to or adjacent to the first-mentioned area, whereby an information reproducing head performs a relative movement to said introduction area and then a relative movement to said first-mentioned area to regenerate the information stored in said plural information tracks.
Claim 24
Dependent Claim
93 words
An information reproducing apparatus comprising: means for converting codes recorded on an information recording medium into electrical signals; means for selecting, from said signals, codes for positioning a reproducing head formed on said information recording medium; means for detecting the relative position of said reproducing head and said positioning codes, in response to a signal from said selecting means; and means for reproducing codes corresponding to the recorded information in the signals obtained from said converting means, after the positioning of said reproducing head in response to a signal from said detecting means.
Claim 25
Dependent Claim
93 words
An information reproducing apparatus comprising: means for converting codes recorded on an information recording medium into electrical signals; means for selecting, from said signals, codes for positioning a reproducing head formed on said information recording medium; means for detecting the relative position of said reproducing head and said positioning codes, in response to a signal from said selecting means; and means for reproducing codes corresponding to the recorded information in the signals obtained from said converting means, after the positioning of said reproducing head in response to a signal from said detecting means.
References Cited (Backward Citations)
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