Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
An optical recording medium for reading out recorded data by optical means. characterized in that a recordable region for recording the main information is provided on a previously formed recording track along the track direction, and in that for each frame as an information recording unit, frame sync signals having the same signal format as that of the frame sync signals for said main information are previously formed by offsetting said recording track along the width thereof,
Claim 2
Dependent Claim
38 words
The optical recording medium according to claim 1 characterized in that the reproduce-only information having the same signal format as that of said main information is previously recorded by offsetting of said recording track along the width thereof.
Claim 3
Dependent Claim
19 words
The optical recording medium according to claim 1 characterized in that said optical recording medium is a magneto-optical disc.
Claim 4
Independent Claim
76 words
A method for recording an information wherein a main information is recorded on a recording track previously formed on an optical recording medium along the direction of said recording track comprising employing a recording medium on which a reproduce-only information is previously formed by offsetting said recording track along the width of said recording track, and recording said main information in accordance with a signal format which is the same as that for said reproduce-only information.
Claim 5
Dependent Claim
26 words
The method according to claim 4 wherein the recording of said main information is controlled in dependence upon the information obtained upon reproducing said reproduce-only information.
Claim 6
Dependent Claim
24 words
The method according to claim 5 wherein, of said main information, an information which is the same as said reproduce-only information is not recorded.
Claim 7
Dependent Claim
23 words
The method according to claim 4 wherein said main information is recorded with the same recording density as that for said reproduce-only information.
Claim 8
Independent Claim
115 words
A method for reproducing a main information recorded on a recording track previously formed on an optical recording medium along the direction of said recording track, comprising employing a recording medium on which frame sync signals having the same signal format as that of frame sync signals for said main information are previously formed for each frame as an information recording unit by offsetting said recording track along the width thereof and reproducing said frame sync signals of said main information by a frame sync signal reproducing circuit which is the same as a frame sync signal reproducing circuit for reproducing said frame sync signals recorded by offsetting the recording track along the width thereof.
Claim 9
Dependent Claim
66 words
The method according to claim 8 wherein said main information is generated by a signal processing circuit, which is the same as a reproducing signal processing circuit for said reproduce-only information, with the use of a recording medium on which the reproduce-only information having the same signal format as that of said main information is previously formed by offsetting said recording track along the width thereof.
Claim 10
Dependent Claim
25 words
The method according to claim 9 wherein reproduction of said main information is controlled in dependence upon the information obtained upon reproducing said reproduce-only information.