摘要:
An information recording medium is provided with: a first recording layer in which one portion of record information including predetermined data can be recorded, the predetermined data being (i) capable of setting a recording layer close to a physically or optically recorded state, and (ii) capable of setting the recording layer close to a buffer state for finalizing; and a second recording layer in which another portion of the record information can be recorded by laser light transmitted through the first recording layer, the information recording medium is provided with a management area in which management information can be recorded, the management information including (iii) identification information indicating whether or not there is a predetermined data recording area in which the predetermined data can be recorded, (iv) position information of the predetermined data recording area, and (v) attribute information of the predetermined data recording area.
摘要:
An information reproducing apparatus (1) is provided with: a detecting device (11) for irradiating an information. recording medium with laser light (LB) and detecting reflected light as a detection signal, the information recording medium including a first recording layer (L0) and a second recording layer (L1); a high pass filter (14) for performing a filtering process on the detected detection signal; and a reproducing device (15, 16) for performing a reproduction process of the filtered detection signal to reproduce the data, the high pass filter attenuates a fluctuation component of the detection signal, caused by a relative eccentricity between the first recording layer and the second recording layer, by a first attenuation amount (34dB) or more.
摘要:
An information recording medium is provided with: a first recording layer in which one portion of record information including predetermined data can be recorded, the predetermined data being (i) capable of setting a recording layer close to a physically or optically recorded state, and (ii) capable of setting the recording layer close to a buffer state for finalizing; and a second recording layer in which another portion of the record information can be recorded by laser light transmitted through the first recording layer, the information recording medium is provided with a management area in which management information can be recorded, the management information including (iii) identification information indicating whether or not there is a predetermined data recording area in which the predetermined data can be recorded, (iv) position information of the predetermined data recording area, and (v) attribute information of the predetermined data recording area.
摘要:
An information reproducing apparatus (1) is provided with: a detecting device (11) for irradiating an information recording medium with laser light (LB) and detecting reflected light as a detection signal, the information recording medium including a first recording layer (L0) and a second recording layer (L1); a high pass filter (14) for performing a filtering process on the detected detection signal; and a reproducing device (15, 16) for performing a reproduction process of the filtered detection signal to reproduce the data, the high pass filter attenuates a fluctuation component of the detection signal, caused by a relative eccentricity between the first recording layer and the second recording layer, by a first attenuation amount (34 dB) or more.
摘要:
A recording medium (100) is provided with: a first recording layer (L0) and a second recording layer (L1) to record therein record information, and a control area (102, 118) in said recording layer and a control area in said second recording layer to record therein control information for controlling at least one of recording and reproduction of the record information, wherein a distance between an inner radius of the control area in the first recording layer and an outer radius of the control area in the second recording layer is larger than or equal to a first predetermined value.
摘要:
A recording medium (100) is provided with a first recording layer (L0) and a second recording layer (L1) for recording information. The first recording layer and the second recording layer are provided with control areas (102, 118), respectively, for recording control information for controlling at least recording or reproduction of the recording information. An area portion of the second recording layer which corresponds to an end portion on an inner circumference side of the control area in the first recording layer, and an end portion on an outer circumference side of the control area in the second recording layer are separated by a prescribed value or more.
摘要:
An information recording apparatus (300) is for recording record information onto an information recording medium (100) provided with: a first area (112) to record therein the record information; and a second area (111) in which the record information is prerecorded as embossed pits, the information recording apparatus is provided with: a recording device (353) for recording the record information into the first area; a detecting device (354) for detecting that the record information is mistakenly recorded in the second area; and an erasing device (352) for erasing the mistakenly recorded record information.