TH30699A - Optical disc - Google Patents

Abstract

DC60 (26/09/43) Land Track Format Optical Discs. And a single loop groove that allows for precise correction of track indentation. And reliable measurement of the turning point Between land-based tracks And grooved tracks And driving equipment for that purpose As revealed in this invention, four physical address regions, PID1, PID2, PID3, and PID4 were recorded with the subject area in such a way that PID1 and PID2 would be 1/2 of the track distance toward the outer circle edge. Of the disc from the center of the groove track and PID3 and PID4 are 1/2 offset of the track distance towards the inner circle edge of the disc. From the center of the grooved track And the physical address area PID1-PID4 can be measured. By the path of the circular differential signal around the single-frequency VFO model at the starting point of each value, the PID is extended by PID1 and PID3, allowing the tracking indentation to be corrected. Using combined signals And point measurement Change land-rut By using the difference signal obtained from the indentation PID, optical disc using land format. And a single-loop groove that allows for precise adjustment of the tracking indentation. And reliable measurement of the turning point Between land-based tracks And grooved tracks And driving equipment for that purpose As revealed in this invention, four physical address regions, PID1, PID2, PID3, and PID4 were recorded with the subject area in such a way that PID1 and PID2 would be 1/2 of the track distance toward the outer circle edge. Of the disc from the center of the groove track and PID3 and PID4 are 1/2 offset of the track distance towards the inner circle edge of the disc. From the center of the grooved track And the physical address area PID1-PID4 can be measured. By the path of the circular differential signal around the single-frequency VFO model at the starting point of each PID value is extended by PID1 and PID3, allowing for correction of the indentation of the tractor. Using combined signals And point measurement Change land-rut Using the difference signal obtained from the indentation PID

Claims (4)

1.Optical disc with recording area Which consists of Disk substrates With grooves around the circle And there is a land between the said rut Phase change recording film In the recording area To record information using the front and back edges of the log mark, generated by point transitions in the ratio of Reflection Effect in phase change recording film By shining it there with a beam of light A laser with a specific wavelength, a lambda, focused by a lens with a specific aperture NA and a loop, uses a single-loop recording formed by an alternate connection. Of a groove recording track that is equal to one round of the disc circle And a land record track equal to one lap circle of disc with track distance P, where p < (Lambda / NA) < 2p The log track contains the integer of the log sector. Where length Of record sectors It is sufficient to store the log data to the log sector of a read-only optical disc. And is an integer twice the length of the synchronized frame of read-only optical discs, and each log sector consists of a mirror area. Which is a normal mirrored surface area and pre-formatted heading area With the edge of the radio measured from the signal Circular differences And display the said information As address information of the data Where at least The address information of the data recorded with the subject area is modulated with a viewing method that limits the scroll length. The subject area contains the PID of the four recorded physical address regions containing the single-frequency VFO body region for the generation of scrambled signals. For the process of synchronization and measurement of time during reconstruction And mark the AM address for byte synchronization. During headline reconstruction And initiate the measurement interval and the Pid of the address area to collect the address information of the sector. And the IED address tolerance detection area to collect the address tolerance code and PA back end to complete the modulation process, where the PIDs of the four physical address regions are named PID1, PID2, PID3 and PID4 from one PID in the subject area. The indentation of PID1 and PID2 approximately p / 2 toward the outer circle or the inner circle. From the center of the track Of the slit log track and the indentation of PID3 and PID4 approximately p / 2 towards the inner circle edge. Or the outer circle edge from the track's center point Of the grooved log track Address of the next land log sector on the outer circle of the sector. Record the trench pattern recorded on the PID1 and PID2 PID addresses and record sector addresses. A groove pattern recorded to the PID of the address regions of PID3 and PID4, each segment is numbered in increments of 1 in the order of the log segments. The log mark in the VFO is longer. Mark the record for the shortest of the modulation method. And the length of VFOs in PID1 and PID3 is pure enough to contain the edge of the recorded mark. Enough to lock Synchronization of the internal VFO recursion clog signal, with the length of the VFO in PID2 and PID4 long enough to contain the edge of the mark, it is sufficient for the process of synchronizing the clog signal of the Repeat within VFO, and VFO regions in PID1 and PID3 are longer than VFO regions. In PID2 and PID4, AM address mark is longer than longest log mark. Of modulation method and is long enough to contain a number of channel bit models Of the length of the log mark does not appear in the order of the bit modulation, the Pid is at least long enough Per classifying the number of log sectors that can store user data that exceed their capacity In the recording of the above read-only optical disc media, the IED is the length that makes the Pid reconstruction error of the address region. The manure was measured. With a lower rate of measurement error Or equal to any rate, at least after the PA Will have the required length By modulation method and long enough to complete the mark and the mirror area is longer than the recording mark. The longest of the modulation method 2.Optical disc with recording area Where Disk substrates With a groove in a circular edge And land between the rut Phase change recording film In the recording area To record information using the front and back edges of the log mark generated from a local change in the bounce rate. Effect in phase change recording film It is emitted there by a laser beam of specific wavelength, a lambda focused by a lens with a specific aperture NA, and a single recording loop generated by an alternate link. Equal groove recording track With one round disc circle And a land record track that is equal to one lap circle of the disc, with the track distance p < (Lambda / NA) < 2p Record tracks include Integer of log sectors By the length of Record sector It is sufficient to hold log data with the log sector of an optical disc read-only and be an integer twice its length. Of the optical disc's synchronization frame read-only, and each log sector contains Mirror area It is a simple mirror surface area and a pre-formatted heading with a measurable edge doctor. From push-pull signal in Tissue way in a circle And display the said information Is the address information that, at least Address information recorded with the subject part. Will be modulated by means of Modulation that limits flow length The subject area that contains Four log sections of the PID of the physical address area. Image with a single frequency VFO body area for signal generation, sync, synchronization, and time measurements during rebuilding. And mark AM addresses for byte synchronization during headline rebuild. And start the measurement interval and the Pid of the address area To collect the address information of the sector and IED of the address tolerance measurement area. To store the measurement code Address tolerance and PA back to complete modulation where the PIDs of the four physical address regions are given PID1, PID2, PID3, and PID4 names from one PID in the subject area. PID1 and PID2 are Indent approximately p / 2 towards the inner circular edge from the center of the track. The grooved log track and PID3 and PID4 are approximately p / 2 indent to the outer circle edge. From the center of the track Of the grooved log track Address of the groove log sector recorded with the Pid of the PID1 and PID2 address regions and the land log sector addresses. Next to the outer circle edge of the sector The log form with the Pid of the address regions of PID3 and PID4 each is numbered in increments of 1 in the log segment sector order. The log mark in the VFO is longer. Mark the record for the shortest of the modulation method. And the length of VFOs in PID1 and PID3 is pure enough to contain the edge of the log mark at Enough to lock Synchronization of the clog signal is reproduced within VFO, with the VFIO lengths in PID2 and PID4 long enough to contain a sufficient margin of the log mark. Per confirmation Synchronize the clog signal. Duplicate within VFO, and VFO regions in PID1 and PID3 are longer than VFO regions. In PID2 and PID4, AM address mark is longer than longest log mark. Of modulation method and is long enough to contain a number of channel bit models Of the log mark whose length does not appear in the order of the bit modulation At the very least, the Pid is long enough to identify the number of log sectors that can store user data that exceed its capacity. In the recording of the above read-only optical disc media, the IED is the length that makes it possible to reproduce the Pid value of the address region. Be measured With a lower rate of measurement error Or equal to the specific rate behind the PA at least Will have the required length By modulation method and long enough to complete the log mark, and the mirror area is longer than the log mark. The longest of the modulation method 3.Optical disc as described in claim 1 where the track distance p is 0.74 m m when the lambda laser beam wavelength is 650 nm and the aperture of the NA lens is 0.6. Modulation method is a modulation method at the rate of 8 bit data to 16 bit channels, with the shortest log mark being 3 bit channel. And the longest log mark will be 11 bit, VFO channel will be 36 bytes in PID1 and PID3 and 8 bytes in PID2 and PID4, AM address mark is 3 byte, Pid is 4 byte, IED is 2 byte. The back of the PA is 1 byte and the mirror area is 2 byte. 4.Optical disc, as described in Clause 2, where the track distance p is 0.74 mu when the lambda laser beam wavelength is 650 nm and the aperture of the NA lens is 0.6. Modulation method It is a modulation method at the rate of 8 bit data to 16 bit channels, with the shortest recording mark being 3 bit channel. And the longest log mark will be 11 bit, VFO channel will be 36 byte in PID1 and PID3 and 8 byte in PID2 and PID4, AM address mark is 3 byte, Pid is 4 byte, IED is 2 byte. PA is 1 byte and mirror area is 2 byte.