Recording and/or reproducing method and apparatus having reciprocal time domain to binary conversion means
AssigneeSony Corporation
InventorsFutoshi Tsukada, Tetsuji Kawashima, Michihiko Iida
Life of this patent
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Abstract
A method and apparatus for information signals in which, in recording and/or reproducing information signals responsive to a request from a host device, a first address defined with the time domain information is converted into a second address defined with consecutive hexadecimal numbers and vice versa by way of reciprocal address conversion. Specifically, an uppermost order value in the time domain information in the first address and a second address value are converted reciprocally using a conversion table.
Claims14
A recording and/or reproducing apparatus for recording and/or reproducing information signals along a recording track on a disc-shaped optical recording medium, comprising:
- rotational driving means for rotationally driving said optical recording medium at a pre-set speed;
- recording and/or reproducing means movable along the radius of said optical recording medium for recording and/or reproducing information signals on or from the recording track of the optical recording medium;
- address conversion means for reciprocally converting a first address in said optical recording medium defined by time domain information and a second address in said optical recording medium defined by consecutive binary numbers;
- and
- memory means for holding a conversion table for conversion between an uppermost order value in the time domain information in said first address and a value of said second address;
- said address conversion means reciprocally converting said first address and said second address using said conversion table held in said memory means.
A recording and/or reproducing apparatus for recording and/or reproducing information signals along a recording track on an optical recording medium, comprising:
- a spindle motor for rotationally driving said optical recording medium at a pre-set speed;
- a recording and/or reproducing head movable along the radius of said optical recording medium for recording and/or reproducing information signals on or from the recording track of said optical recording medium;
- an address converter for reciprocally converting a first address defined with time domain information and a second address defined with consecutive binary numbers in said optical recording medium;
- and
- a memory for holding a conversion table for holding values of the time domain information in said first address and the values of said second address;
- said address converter reciprocally converting said first and second addresses using said conversion table held by said memory means;
- and further comprising:
- means for discriminating a standardized first optical recording medium and a second optical recording medium which achieves high recording density as it is rendered convertible with said first optical recording medium;
- said address converter executing address conversion, using said conversion table, responsive to the result of discrimination by said discriminating means.
A recording and/or reproducing method for recording and/or reproducing information signals along a recording track of a disc-shaped optical recording medium, comprising the steps of:
- reciprocally converting a first address in said optical recording medium defined with time domain information and a second address defined with consecutive binary numbers;
- and
- recording and/or reproducing information signals for said optical recording medium using an address as converted by said address converting step;
- said address converting step effecting address conversion using a conversion table for conversion of an uppermost order value in said time domain information in said first address and the value of said second address.
Dependencies are inferred from the claim text.