CN101188119B

CN101188119B - Recording medium, recording method, reproduction method, recording apparatus and reproduction apparatus

Info

Publication number: CN101188119B
Application number: CN2007101807107A
Authority: CN
Inventors: 具岛丰治; 古宫成; 石田隆; 石桥广通; 出口博纪; 中村敦史; 南野顺一; 臼井诚; 中岛健
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2000-12-26
Filing date: 2001-12-26
Publication date: 2012-06-13
Anticipated expiration: 2021-12-26
Also published as: CN101188121B; CN101188118B; CN101188120B; CN101188120A; CN101188119A; CN101188121A; CN101188118A

Abstract

A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded.

Description

Recording medium, recording method, reproducting method, pen recorder and transcriber

The application is to be that Dec 36 calendar year 2001, application number are 01821385.5, name is called dividing an application of " recording medium, recording method, reproducting method, pen recorder and transcriber " applying date.

Technical field

The present invention relates to a kind ofly allow the CD media of high density data record and be used at the CD media identifying recording layer or from its method of reproducing data and device.

Background technology

Recently, the recording density of CD media increases rapidly.Under the situation of the CD media that allows digital data record, data recording, reproduction and management normally are that unit carries out every byte length with regulation with the piece.(such piece is become " data block ".) the given address information of each data block.Data recording is carried out with reproduction reference address information.

For at a CD media identifying recording layer; That stores has redundant data such as the for example user data of audio frequency, video and computer data, detects during the data that for example are used for storing reading or the error check code (parity check code) of correction data mistake.Come conversion to have the user data of redundant data according to a modulation code system that is well-suited for CD media record and playback signal characteristic.On CD media, data bit stream after the record coversion.A kind of known modulation code system that usually is used for CD media is a run-length limited code.

Run-length limited code is confirmed data bit stream after the conversion, so that with numerical limitations to a defined amount that is inserted into " 0 " position between two " 1 " position in the bit sequence.The number that is inserted into " 0 " position between two " 1 " position is known as " zero run-length ".One " 1 " position in the data bit stream (code sequence) is known as " reversal interval " to the interval (length) between next " 1 " position.The restriction of zero run-length confirm the reversal interval of a data bit stream boundary, be maximal value and minimum value.Maximal value is known as " maximum reversal interval k ", and minimum value is known as " minimum reversal interval d ".

(PPM: groove position modulation) be recorded under the situation on the CD media, the position of data bit stream " 1 " corresponding to a record mark, zero run-length " 0 " is corresponding to a space by mark position record at a data bit stream.At a data bit stream by mark lengths record (PWM: pulse-length modulation) be recorded under the situation on the CD media; When one " 1 " position of data bit stream occurring; Switching recording status, that is, is that a record mark or a space are recorded on the CD media.Under the situation of mark lengths record, reversal interval is corresponding to the length of a record mark or the length in a space.

Therefore; For example; When can in mark position record and mark lengths write down be in the minimum value (such minimum value is called as " mark unit ") of the physical size of the mark that forms on the CD media equate time; 3 mark units of mark position record needs write down the data (3 " 100 " of a data bit stream) of minimum codelength, and the mark lengths record only needs 1 mark unit.

When using the run-length limited code of a minimum reversal interval d=2, the bits number of the per unit length in the mark road of CD media is big under situation about writing down than mark position under the situation of mark lengths record.That is, the recording density of mark lengths record will be higher than the recording density of mark position record.

Usually, when a data bit stream that is transformed into modulation code is recorded on the CD media, usually a synchronous mode each specified period at data bit stream is inserted in the data bit stream.When the reading of data bit stream, it is synchronous that such synchronous mode is carried out appropriate data.According to a kind of known technology that is used to insert synchronous mode, a kind of synchronous mode of a non-existent sequence in the modulation code sequence that comprises is inserted into a beginning with zone that is called as the frame zone of specified byte length.

At some data layouts of the optical disk of recordable type medium that is used for recently being implemented, the DVD-RW data layout will be by concise and to the point description.

In the DVD-RW data layout, address information is arranged by the pre-pit (pre-pit) in the land face (land) between the adjacent grooves mark road of wherein wanting record data at two.Data by continuous recording on recessed groove track.ECC piece as the least unit of data recording and reproduction comprises a plurality of zones that are called as the Frame zone, and each zone has fixing byte length.The Frame zone comprises one in its synchronizing information that begins to locate a to provide zone and a data areas.Data recording or the data area that is reproduced in the beginning that is positioned at each ECC piece in the Frame zone begin and stop.Be used for having recorded therein after the ECC piece of data an ECC piece in addition the operation of record data be called as " link ".Be called as " linking frames zone " corresponding to beginning and a Frame zone stopping the position of data recording.

Figure 44 has shown the link position of a conventional DVD-RW and near data layout thereof.In DVD-RW, an ECC piece comprises 16 sectors, and a sector comprises 26 frame zones.The least unit of data recording is an ECC piece.The data area DATA that data are recorded in the guiding frame zone (linking frames zone) of the boot sector S0 of an ECC piece begins and stops.Figure 44 begins data recording and the position display that stops is " starting position of data recording ".In example shown in Figure 44, carry out link, so that data are recorded in the 16th byte place termination from the beginning in linking frames zone, data are recorded between the 15th byte of the beginning in linking frames zone and the 17th byte and begin.

Data recording begin and the linking frames zone that stops in, data are with discontinuous mode record.Therefore, the data from link starting position (reference position) to the next frame regional record can not be read, because can not realize accurate bit synchronization.In addition; When the link of low precision makes that the length in frame zone is greater than or less than specified length; Perhaps when the chained record of the repetition in the same frame zone makes the Signal Degrade in the frame zone, the signal reproduction system that is used for level amplitude limit, PLL etc. reproduction be recorded in link position and near data the time become unstable.Under the worst situation, can not reading of data in might the several frames zone after link position.In this case, can not the execution error verification, this might produce a read error.When the bearing accuracy when carrying out link during less than, the possibility that precise information reads increases.Yet, along with the recording density of data increases, be difficult to realize less than one tolerance, be unpractical therefore.

According to the problems referred to above, even target of the present invention provides recording medium, recording method, reproducting method, pen recorder and the transcriber that also can allow the stable data record and reproduce at the starting position of data recording and final position.

Summary of the invention

According to one aspect of the present invention, a kind of recording medium that comprises a posting field is provided.Posting field comprises first area and second area.The first area comprises a frame zone.The frame zone comprises the zone that wherein will write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.

In one embodiment of the invention, the second synchronizing code sequence is represented the beginning in frame zone, and the 3rd synchronizing code sequence is represented the beginning of second area, and at least a portion of the 4th synchronizing code sequence is used to stably reproduce data.

In one embodiment of the invention, the first area is arranged on back (rearward) with respect to the 3rd zone.Second area is arranged on the back with respect to the first area.The 3rd zone comprises the zone that wherein will write down the first synchronizing code sequence.

In one embodiment of the invention, at least a portion of the first synchronizing code sequence is used to stably reproduce data.

In one embodiment of the invention, the 3rd zone comprises the zone that wherein will write down the 5th synchronizing code sequence.

In one embodiment of the invention, the 5th synchronizing code sequence is used to specify in the beginning of first area thereafter.

In one embodiment of the invention; The first area comprises a plurality of frames zone; The first area is divided into four zones; Each zone comprises the frame zone of defined amount, and it is different with the second synchronizing code sequence that is recorded in any one the frame zone except being arranged in the frame zone that four-range begins to be recorded in the second synchronizing code sequence that is arranged in the frame zone that four-range begins.

In one embodiment of the invention, be recorded in the second synchronizing code sequence in the frame zone that four-range begins and be recorded in not being both and being equal to or greater than 2 code distance between the second synchronizing code sequence in any one the frame zone except the frame zone that begins at four-range.

The length of the 4th synchronizing code sequence is set when being recorded in data on the recording medium in one embodiment of the invention, at every turn at random.

The length of the first synchronizing code sequence is set when being recorded in data on the recording medium in one embodiment of the invention, at every turn at random.

In one embodiment of the invention, at least a portion of the 4th synchronizing code sequence is rewritten by the first synchronizing code sequence that when being recorded in additional data on the recording medium, is write down.

According to another aspect of the present invention, a kind of method for recording information on a recording medium with posting field that is used for is provided.This method comprises the steps: to receive data; The record first synchronizing code sequence in posting field; At zone record one frame in the first area of back with respect to the posting field that wherein records the first synchronizing code sequence; Wherein, said frame comprises at least a portion of the second synchronizing code sequence and the data that receive; In a zone of back, writing down the 3rd synchronizing code sequence with respect to the first area; And, in zone record the 4th synchronizing code sequence in a zone of back with respect to the posting field that wherein records the 3rd synchronizing code sequence.

In one embodiment of the invention, this method further comprise the steps: with respect to the zone that wherein records the first synchronizing code sequence the back and with respect to first area record the 5th synchronizing code sequence in the zone of the posting field of (forward) in front.

In one embodiment of the invention, the step that writes down the first synchronizing code sequence comprises the step of the length that the first synchronizing code sequence is set at random.

In one embodiment of the invention, the step that writes down the 4th synchronizing code sequence comprises the step of the length that the 4th synchronizing code sequence is set at random.

In one embodiment of the invention, at least a portion of the first synchronizing code sequence is used to stably reproduce data.The second synchronizing code sequence is represented the beginning in frame zone.The 3rd synchronizing code sequence is represented a beginning that comprises the second area of the 3rd synchronizing code sequence and the 4th synchronizing code sequence.At least a portion of the 4th synchronizing code sequence is used to stably reproduce data.The 5th synchronizing code sequence is used to specify the beginning of first area.

In one embodiment of the invention, the first synchronizing code sequence that when being recorded in additional data on the recording medium, write down of at least a portion of the 4th synchronizing code sequence rewrites.

According to another aspect of the present invention, provide a kind of being used for to have the method that writes down additional information on the recording medium that wherein records the recording of information zone at one.Posting field comprises first area and second area.The first area comprises a frame zone.The frame zone comprises a zone that wherein records at least a portion of the second synchronizing code sequence and data.Second area comprises a zone that wherein records the 3rd synchronizing code sequence and the 4th synchronizing code sequence.This method comprises the steps: to receive additional data; Detect the 3rd synchronizing code sequence; Confirm a record start position in the posting field based on the position of detected the 3rd synchronizing code sequence; Write down the first appended synchronization code sequence at record start position; In the additional first area data that comprise an additional frame with respect to the zone that wherein records first appended synchronization code sequence record in a zone of the posting field of back; Wherein, additional frame comprises at least a portion of the second appended synchronization code sequence with the additional data that is received of the beginning that is used to discern additional frame; In a zone of back, writing down the 3rd appended synchronization code sequence with respect to the additional first area that wherein records additional first area data; And, in a zone of back, writing down the 4th appended synchronization code sequence with respect to the zone that wherein records the 3rd appended synchronization code sequence.

In one embodiment of the invention; This scheme further comprises the steps, with respect to the zone that wherein records the first appended synchronization code sequence the back and with respect to a zone of additional first area posting field in front in record the 5th appended synchronization code sequence.

In one embodiment of the invention, at least a portion of the first appended synchronization code sequence is used to stably reproduce data.The second appended synchronization code sequence is represented the beginning in frame zone.The 3rd appended synchronization code sequence is represented a beginning that comprises the second area of the 3rd appended synchronization code sequence and the 4th appended synchronization code sequence.At least a portion of the 4th appended synchronization code sequence is used to stably reproduce data.The 5th appended synchronization code sequence is used to specify the beginning of additional first area.

In one embodiment of the invention; A plurality of additional frames are grouped into a plurality of sector datas; Each sector data comprises the additional frame of defined amount, different with the second appended synchronization code sequence of any one additional frame except the additional frame in the beginning of each sector data at the second appended synchronization code sequence of the additional frame of the beginning of each sector data in the additional frame of defined amount.

In one embodiment of the invention, not being both one and being equal to or greater than 2 code distance in the additional frame of defined amount at the second appended synchronization code sequence of the second appended synchronization code sequence of the additional frame of the beginning of each sector data and any one additional frame except additional frame in the beginning of each sector data.

In one embodiment of the invention, the step of confirming the record start position in the posting field comprises the step of confirming record start position at random.

In one embodiment of the invention, the step that writes down the first appended synchronization code sequence comprises the step of the length that the first appended synchronization code sequence is set at random.

In one embodiment of the invention, the step that writes down the 4th appended synchronization code sequence comprises the step of the length that the 4th appended synchronization code sequence is set at random.

In one embodiment of the invention, the step of confirming the record start position in the posting field comprises confirms that record start position is so that the step that at least a portion of the 4th synchronizing code sequence is rewritten by the first appended synchronization code sequence.

According to another aspect of the present invention, a kind of pen recorder that is used for recorded information on a recording medium with posting field is provided.This pen recorder comprises: receiving unit is used to receive data; And recording section is used in the posting field record first synchronizing code sequence.Recording section is at zone record one frame in the first area of back with respect to the posting field that wherein records the first synchronizing code sequence.Said frame comprises at least a portion of the second synchronizing code sequence and the data that receive.Recording section is writing down the 3rd synchronizing code sequence with respect to the first area in a zone of back.Recording section is in zone record the 4th synchronizing code sequence in a zone of back with respect to the posting field that wherein records the 3rd synchronizing code sequence.

In one embodiment of the invention, pen recorder with respect to the zone that wherein records the first synchronizing code sequence the back and with respect to a zone of first area posting field in front in the record the 5th synchronizing code sequence.

In one embodiment of the invention, recording section is provided with the length of the first synchronizing code sequence at random.

In one embodiment of the invention, recording section is provided with the length of the 4th synchronizing code sequence at random.

According to another aspect of the present invention, provide a kind of being used for to have the pen recorder that writes down additional information on the recording medium that wherein records the recording of information zone at one.Posting field comprises first area and second area.The first area comprises a frame zone.The frame zone comprises a zone that wherein records at least a portion of the second synchronizing code sequence and data.Second area comprises a zone that wherein records the 3rd synchronizing code sequence and the 4th synchronizing code sequence.Pen recorder comprises: recording section is used to receive additional data; The test section is used to detect the 3rd synchronizing code sequence; Confirm part, be used for confirming the record start position of posting field based on the position of the 3rd synchronizing code sequence that is detected; And recording section is used for writing down the first appended synchronization code sequence at record start position.Recording section will comprise that the additional first area data of an additional frame are recorded in respect in the zone of the zone that wherein records the first appended synchronization code sequence in the posting field of back; Wherein, additional frame comprises at least a portion of the second appended synchronization code sequence with the additional data that is received of the beginning that is used to discern additional frame.The additional first area that recording section is recorded in respect to wherein record additional first area data with the 3rd appended synchronization code sequence is in a zone of back.Recording section is recorded in the 4th appended synchronization code sequence with respect to the zone that wherein records the 3rd appended synchronization code sequence in a zone of back.

In one embodiment of the invention, recording section with respect to the zone that wherein records the first appended synchronization code sequence the back and with respect to a zone of additional first area posting field in front in record the 5th appended synchronization code sequence.

In one embodiment of the invention, confirm the definite at random record start position of part.

In one embodiment of the invention, recording section is provided with the length of the first appended synchronization code sequence at random.

In one embodiment of the invention, recording section is provided with the length of the 4th appended synchronization code sequence at random.

In one embodiment of the invention, confirm the definite record start position of part, make at least a portion of the 4th synchronizing code sequence rewritten by the first synchronizing code sequence.

According to another aspect of the present invention, a kind of method that is recorded in the information on the recording medium with posting field that is used to reproduce is provided.Posting field comprises first area and second area.The first area comprises a frame zone.The frame zone comprises a zone that wherein records at least a portion of the second synchronizing code sequence and data.Second area comprises a zone that wherein records the 3rd synchronizing code sequence and the 4th synchronizing code sequence.This method comprises the steps: to reproduce the 3rd synchronizing code sequence; Reproduce the 4th synchronizing code sequence; Reproduce the second synchronizing code sequence; And, reproduce at least a portion of said data.

In one embodiment of the invention, the first area is provided in the back, second area is provided in the back with respect to the first area with respect to the 3rd zone.The 3rd zone comprises a zone that wherein records the first synchronizing code sequence.This method further comprises the step of reproducing the first synchronizing code sequence.

In one embodiment of the invention, the 5th synchronizing code sequence is used to specify the beginning of the first area of its back.

According to another aspect of the present invention, provide a kind of be used to reproduce be recorded in a recording of information device on the recording medium with posting field.Posting field comprises first area and second area.The first area comprises a frame zone.The frame zone comprises a zone that wherein records at least a portion of the second synchronizing code sequence and data.Second area comprises a zone that wherein records the 3rd synchronizing code sequence and the 4th synchronizing code sequence.Transcriber comprises: the part that is used to reproduce the 3rd synchronizing code sequence; Be used to reproduce the part of the 4th synchronizing code sequence; Be used to reproduce the part of the second synchronizing code sequence; And, be used to reproduce the part of at least a portion of said data.

In one embodiment of the invention, with respect to the 3rd zone the first area is provided in the back.With respect to the first area second area is provided in the back.The 3rd zone comprises a zone that wherein records the first synchronizing code sequence.Transcriber further comprises the part that is used to reproduce the first synchronizing code sequence.

According to another aspect of the present invention, but a kind of recording medium comprises a regenerative recording zone that is used for record data; And one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.But the regenerative recording zone comprises first area and second area.The first area comprises a frame zone.The frame zone comprises the zone that wherein will write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.The posting field that is specifically designed to reproduction comprises a plurality of additional frames (further frame) zone and a zone that wherein records additional the 3rd synchronizing code sequence and specific purpose data, and wherein each additional frame zone comprises at least a portion of replenishing the second synchronizing code sequence and user data that is used to discern the regional beginning of each additional frame that is recorded in wherein.Replenish the beginning of the 3rd synchronizing code recognition sequence specific purpose data.

According to another aspect of the present invention, a kind of method that is used to reproduce the specific purpose data that are recorded on the recording medium is provided.But recording medium comprises a regenerative recording zone that is used for record data, and one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.But the regenerative recording zone comprises first area and second area.The first area comprises a frame zone.The frame zone comprises the zone that wherein will write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.The posting field that is specifically designed to reproduction comprises a plurality of additional frame zones and a zone that wherein records additional the 3rd synchronizing code sequence and specific purpose data, and wherein each additional frame zone comprises at least a portion of replenishing the second synchronizing code sequence and user data that is used to discern the regional beginning of each additional frame that is recorded in wherein.Replenish the beginning of the 3rd synchronizing code recognition sequence specific purpose data.This method comprises the steps: to detect replenishes the 3rd synchronizing code sequence, and reproduces the specific purpose data in response to the detection that replenishes the 3rd synchronizing code sequence.

According to another aspect of the present invention, a kind of transcriber that is used to reproduce the specific purpose data that are recorded on the recording medium is provided.But recording medium comprises a regenerative recording zone that is used for record data, and one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.But the regenerative recording zone comprises first area and second area.The first area comprises a frame zone.The frame zone comprises the zone that wherein will write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.The posting field that is specifically designed to reproduction comprises a plurality of additional frame zones and a zone that wherein records additional the 3rd synchronizing code sequence and specific purpose data, and wherein each additional frame zone comprises at least a portion of replenishing the second synchronizing code sequence and user data that is used to discern the regional beginning of each additional frame that is recorded in wherein.Replenish the beginning of the 3rd synchronizing code recognition sequence specific purpose data.Transcriber comprises that one is used to detect the test section that replenishes the 3rd synchronizing code sequence, and a reproducing part of reproducing the specific purpose data in response to the detection that replenishes the 3rd synchronizing code sequence.

According to another aspect of the present invention, a kind of recording medium comprises that one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.The posting field that is specifically designed to reproduction comprises a plurality of frames zone and a zone that wherein records the 3rd synchronizing code sequence and specific purpose data, wherein each frame zone comprise be recorded in wherein be used to discern the second synchronizing code sequence of the regional beginning of each frame and at least a portion of user data.

According to another aspect of the present invention, a kind of method that is used to reproduce the specific purpose data that are recorded on the recording medium is provided.Recording medium comprises that one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.The posting field that is specifically designed to reproduction comprises a plurality of frames zone and a zone that wherein records the 3rd synchronizing code sequence and specific purpose data, wherein each frame zone comprise be recorded in wherein be used to discern the second synchronizing code sequence of the regional beginning of each frame and at least a portion of user data.The beginning of the 3rd synchronizing code recognition sequence specific purpose data.This method comprises the steps: to detect the 3rd synchronizing code sequence, and reproduces the specific purpose data in response to the detection of the 3rd synchronizing code sequence.

According to another aspect of the present invention, a kind of transcriber that is used to reproduce the specific purpose data that are recorded on the recording medium is provided.Recording medium comprises that one wherein records user data and the posting field that is specifically designed to reproduction that is different from the specific purpose data of user data.The posting field that is specifically designed to reproduction comprises a plurality of frames zone and a zone that wherein records the 3rd synchronizing code sequence and specific purpose data, wherein each frame zone comprise be recorded in wherein be used to discern the second synchronizing code sequence of the regional beginning of each frame and at least a portion of user data.The beginning of the 3rd synchronizing code recognition sequence specific purpose data.Transcriber comprises a test section that is used to detect the 3rd synchronizing code sequence, and the reproducing part of specific purpose data is reproduced in detection in response to the 3rd synchronizing code sequence.

According to another aspect of the present invention, provide a kind of and be used for recording on the recording of information medium in addition recorded information above that or be used for the recording of information device of regenerative recording on recording medium.Recording medium comprises at least one second data unit (unit); In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one the first frame zone that is used for each second data unit, and the 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone.Pen recorder comprises: first test section is used for detecting the second synchronizing code sequence from second data unit; The 3rd test section is used for detecting the 3rd synchronizing code sequence from second data unit; And start-of-record is regularly confirmed part, is used to adopt by the testing result of first test section acquisition and/or by the testing result that the 3rd test section obtains confirm to begin the other record or the timing of rewriting.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one the first frame zone that is used for each second data unit, and the 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone.Transcriber comprises: first test section is used to detect the second synchronizing code sequence; The 3rd test section is used to detect the 3rd synchronizing code sequence; And, reproduce beginning and regularly confirm part, adopt by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And/or by the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains from its second data unit that reads information, confirm the timing that begins to reproduce.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one the first frame zone that is used for each second data unit, and the 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone.Transcriber comprises: level amplitude limit part is used for through carrying out the level amplitude limit and produce the level sliced data reading signal from of recording medium; First test section is used for detecting the second synchronizing code sequence from the level sliced data of partly having been carried out the level amplitude limit by the level amplitude limit; The 3rd test section is used for detecting the 3rd synchronizing code sequence from the level sliced data; And level limiter mode (level-sliced pattern) switching part adopts by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And/or by the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains, the level limiter mode of an assigned position switch level amplitude limit part at least one first frame zone from its second data unit that reads information.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one the first frame zone that is used for each second data unit, and the 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone.Transcriber comprises: the clock generating part is used to adopt a signal that reads from recording medium to produce a bit synchronization clock; First test section is used to adopt the bit synchronization clock detection second synchronizing code sequence; The 3rd test section is used to adopt bit synchronization clock detection the 3rd synchronizing code sequence; And clock reproduction mode switching part adopts by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And/or by the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains from its second data unit that reads information, an assigned position at least one first frame zone switches the clock reproducing mode of clock generating part.

According to another aspect of the present invention, provide a kind of and be used for recording on the recording of information medium in addition recorded information above that or be used for the recording of information device of regenerative recording on recording medium.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one first frame zone that is used for each second data unit; The 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone, and the 5th synchronizing code sequence is recorded in each the end at least one first frame zone.Pen recorder comprises: first test section is used for detecting the second synchronizing code sequence from second data unit; The 3rd test section is used for detecting the 3rd synchronizing code sequence from second data unit; The 4th test section is used for detecting the 5th synchronizing code sequence from second data unit; And; Start-of-record is regularly confirmed part, and at least one of testing result that be used for adopting the testing result that obtained by first test section, is obtained by the 3rd test section and the testing result that obtained by the 4th test section confirms to begin the other record or the timing of rewriting.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one first frame zone that is used for each second data unit; The 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone, and the 5th synchronizing code sequence is recorded in each the end at least one first frame zone.Transcriber comprises: first test section is used to detect the second synchronizing code sequence; The 3rd test section is used to detect the 3rd synchronizing code sequence; The 4th test section is used to detect the 5th synchronizing code sequence; And, reproduce beginning and regularly confirm part, adopt by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; By the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And by the 4th test section from respect at least one of testing result that will be arranged in the 4th synchronizing code sequence that second data unit of front obtains from its second data unit that reads information, confirm the timing that begins to reproduce.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one first frame zone that is used for each second data unit; The 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone, and the 5th synchronizing code sequence is recorded in each the end at least one first frame zone.Transcriber comprises: level amplitude limit part is used for through carrying out the level amplitude limit and produce the level sliced data reading signal from of recording medium; First test section is used for detecting the second synchronizing code sequence from the level sliced data of partly having been carried out the level amplitude limit by the level amplitude limit; The 3rd test section is used for detecting the 3rd synchronizing code sequence from the level sliced data; The 4th test section is used for detecting the 5th synchronizing code sequence from the level sliced data; And level limiter mode switching part adopts by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; By the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And by the 4th test section from respect at least one of testing result that will be arranged in the 4th synchronizing code sequence that second data unit of front obtains, the level limiter mode of an assigned position switch level amplitude limit part at least one first frame zone from its second data unit that reads information.

According to another aspect of the present invention, a kind of transcriber that the recording of information medium reads information that is used for recording from it is provided.Recording medium comprises at least one second data unit; In said at least one second data unit each comprises first data unit of defined amount; In first data unit of said defined amount each comprises a plurality of frames zone with specified byte length; The second synchronizing code sequence is recorded in the beginning at least one the frame zone in a plurality of frames zone; Recording medium further comprises at least one first frame zone that is used for each second data unit; The 3rd synchronizing code sequence is recorded in each the beginning at least one first frame zone, and the 5th synchronizing code sequence is recorded in each the end at least one first frame zone.Transcriber comprises: the clock generating part is used to adopt a signal that reads from recording medium to produce a bit synchronization clock; First test section is used to adopt the bit synchronization clock detection second synchronizing code sequence; The 3rd test section is used to adopt bit synchronization clock detection the 3rd synchronizing code sequence; The 4th test section is used to adopt bit synchronization clock detection the 5th synchronizing code sequence; And the reproduction mode switching part adopts by first test section from respect to the testing result that will be positioned at the first synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; By the 3rd test section from respect to the testing result that will be positioned at the 3rd synchronizing code sequence that second data unit of front obtains from its second data unit that reads information; And by the 4th test section from respect to the testing result that will be positioned at the 4th synchronizing code sequence that second data unit of front obtains from its second data unit that reads information, an assigned position at least one first frame zone switches the clock reproducing mode of clock generating part.

Function of various details.

In foundation recording medium of the present invention, posting field comprises first area and second area.The first area comprises a frame zone.In the frame zone, write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.On a such recording medium, regard a position in the 4th synchronizing code sequence as starting position, can begin other data recording (link).Like this, other data recording is not carried out in having write down the frame zone of data.Therefore, even at the starting position and the final position of data recording, data recording also can stably be carried out with reproducing.

Description of drawings

Fig. 1 has shown the top view according to the CD-R medium (recording medium) 101 of first example of the present invention.

Fig. 2 has shown the data layout of the data block 103 of CD media 101.

Fig. 3 has shown an example of a pattern (PA pattern) that will be recorded among the first retaining zone PA, and it is desirable especially in first example of the present invention.

Fig. 4 has shown an example of a pattern (VFO pattern) that will be recorded among the second retaining zone VFO, and it is desirable especially in first example of the present invention.

Fig. 5 has shown the illustration pattern that when Tmin=3 and Tmin=2, will be recorded among the second retaining zone VFO.

Fig. 6 has shown an example of a pattern (SY pattern) that will be recorded among the 3rd retaining zone SY, and it is desirable especially in first example of the present invention.

Fig. 7 A has shown the illustration logging mode of a starting position in the normal frames zone (that is second frame zone) in first example of the present invention.

Fig. 7 B has shown the illustration logging mode of a starting position in the linking frames zone (that is first frame zone) in first example of the present invention.

Fig. 8 has shown the top view according to the CD-R medium (recording medium) 3103 of second example of the present invention.

Fig. 9 has shown an example of the data layout of the CD media 3103 in second example of the present invention.

Figure 10 has shown each a example of the synchronizing code sequence that begins to locate that is arranged in 26 frame zones that sector 3103 (Fig. 9) comprises.

Figure 11 has shown an example that in second example of the present invention, preferably is used as a pattern of synchronizing code sequence.

Figure 12 has shown SY0 pattern and the object lesson of SY pattern in second example of the present invention.

Figure 13 has schematically shown the code distance between various types of synchronizing code sequences (pattern).

Figure 14 has shown the exemplary inner structure of a frame zone F0.

Figure 15 has shown the object lesson of SY0 pattern, SY pattern and PA pattern in second example of the present invention.

Figure 16 has shown other object lessons of SY0 pattern, SY pattern and PA pattern in second example of the present invention.

Figure 17 has shown each another example of the synchronizing code sequence that begins to locate that is arranged in 26 frame zones that sector 3103 (Fig. 9) comprises.

Figure 18 A has shown that to 18D the order that is recorded on the CD media according to the synchronizing code sequence arranges the example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.

Figure 19 A has shown that to 19C the order that is recorded on the CD media according to the synchronizing code sequence arranges the example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.

Figure 20 has shown that the order that is recorded on the CD media according to the synchronizing code sequence arranges another example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.

Figure 21 has shown each another example of the synchronizing code sequence that begins to locate that is arranged in 26 frame zones that sector 3103 (Fig. 9) comprises.

Figure 22 A has shown that to 22C the order that is recorded on the CD media according to the synchronizing code sequence when the Mode S Y0 that uses four types, SY1, SY2 and the SY3 arranges the example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.

Figure 23 has shown the top view according to the CD-R medium 401 of the 3rd example of the present invention.

Figure 24 has shown the data layout according to the data block 403 of the CD media 401 (Figure 23) of the 3rd example of the present invention.

Figure 25 has shown an example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and it is desirable especially in the 3rd example of the present invention.

Figure 26 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and it is desirable especially in the 3rd example of the present invention.

Figure 27 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and it is desirable especially in the 3rd example of the present invention.

Figure 28 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and it is desirable especially in the 3rd example of the present invention.

Figure 29 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and it is desirable especially in the 3rd example of the present invention.

Figure 30 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS.

Figure 31 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS.

Figure 32 has shown the top view according to the CD-R medium 701 of the 4th example of the present invention.

Figure 33 has shown the data layout according to the data block 703 of the CD media 701 of the 4th example of the present invention.

Figure 34 A and 34B have shown other examples of the structure of first frame zone 801a in the 4th example of the present invention.

Figure 35 has shown the top view according to the CD-R medium 1001 of the 5th example of the present invention.

Figure 36 has shown the data layout of the data block 1003a that comprises in the reproduction regions 1004 of the CD media 1001 in the 5th example of the present invention.

Figure 37 has shown the data layout of the data block 1003b that comprises in the rewritable area 1005 of the CD media 1001 in the 5th example of the present invention.

Figure 38 has shown the structure according to the information record carrier (pen recorder) 1710 of the 6th example of the present invention.

Figure 39 has shown an example of the inner structure of mode detection and sync section 1703.

Figure 40 has shown another example of the inner structure of mode detection and sync section 1703.

Figure 41 has shown the data layout of CD media 3101 and the relation between the positional information.

Figure 42 has shown the structure according to the information reproduction apparatus (transcriber) 1801 of the 7th example of the present invention.

Figure 43 has shown and has been used for reproducing the work wave that is recorded in corresponding to the various timing signals of the first frame area L F of linking frames and near data thereof.

Figure 44 has shown the link position of a conventional DVD-RW and near data layout thereof.

Embodiment

After this, will with way of example the present invention be described with reference to accompanying drawing.In this instructions, term " beginning " and " end " refer to along the relative position in the information mark road of CD media.At first be called as " beginning " beginning of data recorded (or in section) of section at one along data in the section in information mark road, at " end " end of data recorded (or in section) that is called as section along data in the section in information mark road at last by a position of record or reproduction by record or the position of reproducing.Regional A and area B are being arranged along information mark road and after area B under the situation of regional A execution data recording or reproduction, regional A is expressed as with respect to area B in " at the back ", area B is expressed as with respect to regional A in " front ".A zone is not to mean that inevitably these two zones are adjacent one another are with respect to another zone in " at the back " or the expression in " front ".When regional A with respect to area B in the back and regional A when adjacent with area B, it is an adjacent zone after area B that regional A is expressed as.

In this instructions, a specific region on the information mark road of term " frame zone " expression CD media.In the frame zone, write down the code sequence of stated amount of data and/or ormal weight.The data or the code sequence that are recorded in the frame zone are called as one " frame ".In this instructions, a specific region on the information mark road of CD media also represented in term " sector ", and comprise above-mentioned a plurality of frames zone.

(example 1)

Fig. 1 has shown the top view according to the CD-R medium (recording medium) 101 of first example of the present invention.On the recording surface of CD media 101, record mark road 102 (posting fields) form in a spiral manner.Record mark road 102 is divided into plurality of data piece 103.In other words, on the recording surface of CD media 101, data block 103 is arranged by circumferencial direction continuously, to form information mark road 102.

Fig. 2 has shown the data layout of the data block 103 of CD media 101.As shown in Figure 2, each data block 103 is included in its first frame that begins zone 201 and a plurality of second frames zone 202 thereafter.201 and second frame zone, first frame zone 202 forms a data block 103.In Fig. 2, the back, a zone that the regional on the left side that the right shows shows.

Like this, the information mark road 102 of CD media 101 is included in a plurality of second frame zone 202 (close and be called the first area) and one first frame zone 201 (second areas) that comprise in the data block.

First frame zone 201 is included in its first retaining zone PA that begins and the second retaining zone VFO thereafter.

Second frame zone 202 (frame zone) is included in its 3rd retaining zone SY that begins and data area DATA thereafter.The 3rd retaining zone SY is the zone that wherein will write down a SY pattern (the second synchronizing code sequence).Data area DATA is the zone that wherein will write down at least a portion of the user data that will in recording medium, write down.In other words, second frame zone 202 (frame zone) comprises the zone that wherein will write down at least a portion of a SY pattern (the second synchronizing code sequence) and user data.

Each regional effect will be described below.At first, data area DATA is used to write down a data bit stream that comprises user data.Data bit stream comprises that one is used for when reading of data detecting or the parity check code of correction data mistake.Parity check code is included in the zone except user data.Data bit stream is not registered as binary data itself, but the modulating system that before record, is complementary by a record and a playback signal characteristic with CD media carries out conversion.

Here; Suppose that data bit stream is a code sequence that is restricted to minimal tour (minimum reversal interval) d and maximum run (maximum reversal interval) k after the conversion, and this code sequence is to be divided into through the data bit stream with input to have unit respectively for (piece of position of m * i) will import every of data then and be transformed into one and have unit for (n * i) code sequence obtains.In this case, d and k are natural numbers, satisfy d＜k, and m and n are natural numbers, satisfy m＜n, and i is a natural number, satisfy 1≤i≤r.Especially when r=1, this transformation system is called as the fixed length code system, and when r >=1 (i can be a plurality of values), this transformation system is called as the variable-length codes system.

When a code sequence during by NRZ (non-return to zero system) format record, the position of code sequence " 1 " corresponding to a record mark, a zero run-length " 0 " is corresponding to a space.In CD media, record mark and space are protruding or recessed through pit or are distinguished from each other through the difference in the reflectance that is caused by the phase transformation in the recording layer.When code sequence during, when the data bit stream of " 1 " position occurring, switch recording status, promptly be to write down a record mark or will write down a space by NRZI (Non Return to Zero Inverted) format record.Under the situation of mark lengths record, reversal interval is corresponding to the length of a record mark or the length in a space.

Suppose and to equate in the NRZ record writes down with NRZI in the minimum value (such minimum value is called as " mark unit ") of the size of the mark that forms on the recording layer of CD media; Then 3 mark units of NRZ record needs write down the data (3 " 100 " of a data bit stream) of minimum codelength, but the NRZI record only needs a mark unit.Therefore, when using the run-length limited code of a minimum reversal interval d=2, the ratio under the situation of NRZI record of the figure place on the per unit length in the mark road of CD media is big under the situation of NRZ label record.That is, the recording density of NRZI record is higher than the recording density of NRZ record.

In first example of the present invention, the run-length limited code that to adopt a parameter that is used to modulate be d=2, k=10, m=8, n=16 and r=1 is carried out the mark lengths record.In other words, the data bit stream that is recorded among the data area DATA of CD media 101 (Fig. 1) comprises record mark and the record space with minimum length Tmin=3 position and maximum length Tmax=11 position.

The beginning that provides the first retaining zone PA to discern first frame zone 201, the first retaining zone PA preferably has the absent variable pattern that writes down in the data bit stream in will being recorded in data area DATA at least.Through with one in the DATA of data area absent variable mode record in the first retaining zone PA, when the reading of data bit stream, can easily the first retaining zone PA and data area DATA be made a distinction.

Provide the second retaining zone VFO to come when reading each data block 103, to realize the stable operation of data playback system.Data playback system for example refers to the part and PLL (phaselocked loop) part that is used for extracting from the level sliced data bit synchronization clock that are used for the reproducing signal RF (radio frequency) that reads from data block 103 is carried out the level amplitude limit.In order to realize the stable operation of data playback system, the pattern that is recorded among the second retaining zone VFO preferably satisfies condition 1 to 3 given below.

Enough amplitudes of (condition 1) assurance reproducing signal RF and enough S/N are than (signal to noise ratio (S/N ratio)).

The number of times that switch in (condition 2) record mark/space is enough.

The DSV value (digital summing value) of (condition 3) pattern is as far as possible near 0.

Condition 1 is to be used for suitably obtaining the level sliced data from reproducing signal RF.Too little or its S/N is when too low when the amplitude of reproducing signal RF, because the interference of noise of data playback system, signal can not be by accurately level amplitude limit or signal are become wrong data by the level amplitude limit.

Condition 2 is to be used for stably obtaining a bit synchronization clock from the level sliced data at a high speed.When the clock frequency/phase was partly locked by PLL in the second retaining zone VFO, the number of times that switches along with record mark/space was bigger, and being used for frequency/phase information relatively can be obtained more continually.Like this, clock frequency/phase place can be by locking more promptly.The number of times that switches when record mark/space too hour can not obtain to be used for frequency/phase information relatively.Consequently, clock frequency/phase place more slowly or is more astatically locked.

Condition 3 is used for reproducing signal RF is carried out level amplitude limit stably.Use one usually as the situation of the DC feedback system of level limiter system under (the DC component of data is carried out the FEEDBACK CONTROL of clipping lever after being used for the level amplitude limit); When the DSV of pattern value obviously fluctuateed or disperses, clipping lever obviously fluctuateed from the center of reproducing signal RF or obviously drifts about (shift).Consequently, can not stablize acquisition level sliced data.Preferably give the DC feedback system near a DSV value of 0 pattern as far as possible.

Provide the 3rd retaining zone SY to discern the beginning in each second frame zone 202.Be similar to the first retaining zone PA of the beginning that is used to discern first frame zone 201, be preferably in absent variable pattern in will being recorded at least one data bit stream of data area DATA of record among the 3rd retaining zone SY.Through absent variable pattern in the DATA of data area of record in the 3rd retaining zone SY, when the reading of data bit stream, can the 3rd retaining zone SY and data area DATA easily be made a distinction.

Fig. 3 has shown an example of a pattern (PA pattern) that will be recorded among the first retaining zone PA, and this example is desirable especially in first example of the present invention.A characteristic of PA pattern shown in Figure 3 is that this pattern comprises that length is the record mark or the space of 14 channels bits (14T), and this is (Tmax+3) individual channel bit length.As stated, in first example, the maximum mark/space length Tmax that be recorded in the data bit stream among the DATA of data area is 11 channels bits (11T), and the 14T that comprises among this and the first retaining zone PA differs 3.Even when the edge shifting of 1 channels bits occurring owing to the The noise that produces at reproduction period and consequently the 14T mark (or 14T space) in first retaining zone shortens to 11T mark (or 11T space) among 13 channels bits and the data area DATA and is elongated to 12 channels bits, the difference of 1 channels bits is arranged still between the mark (or space) among mark in first retaining zone (or space) and the data area DATA.Like this, with respect to about 1 edge shifting, provide enough mistake tolerance limit to prevent that the 11T pattern among the DATA of data area is mistakenly detected as the pattern among the first retaining zone PA.Like this, the PA pattern is used to discern the beginning of follow-up VFO pattern.

In example shown in Figure 3, a 4T space/mark is positioned at adjacent after the 14T mark/space.During data in read block 103, through using (14T+4T) as detecting pattern, the possibility of error-detecting with only use 14T to compare to be reduced as detecting pattern.Through with (15T+3T) or (13T+5T) adding detecting pattern to, and be not only (14T+4T), even also can avoid not detecting 14T when an edge drift then occurring in the rear end of 14T, and the possibility of error-detecting still can keep low as much as possible.

Like this, the PA pattern can easily make a distinction with the VFO pattern of its back or any other pattern that is recorded among the DATA of data area.Through detecting the transcriber or the pen recorder of PA pattern; Become and might confirm termination with respect to the data area DATA in the PA pattern data block in front, or the beginning of the data block of the beginning of the second retaining zone VFO of prediction after the PA pattern or second retaining zone VFO back.The PA pattern that writes down in first retaining zone is used to the object lesson of reproducing control or record controls and will be in the back describes in the 6th and the 7th example.The beginning in PA modal representation first frame zone (second area).

In Fig. 3, the pattern among the first retaining zone PA is shown { 10010010010001000000000000010001} by the NRZ form shfft.Through adjacent (14T+4T) add before with situation at modulation code in equally satisfy d=2 and the k=10 (restriction on zero run-length; Promptly; The sequence (3T+3T+3T+4T) of the run-length restriction number of continuous " 0 " position); Form a pattern that has 32 channels bits (that is 2 bytes) altogether.Be positioned at adjacent sequence before the 14T and preferably satisfy the identical run-length restriction with modulation code, but the present invention is not limited to this point.The pattern of the first retaining zone PA is not limited to a pattern, but can from a plurality of patterns, select.For example, prepare have different zero run-lengths a plurality of patterns of (number of continuous " 0 " position) of beginning in pattern.From a kind of pattern of these a plurality of model selections, make selected pattern when being connected to, satisfy the identical run-length restriction with modulation code from zero run-length (last zero run-length) that the modulation of adjacent byte in front obtains.Perhaps, a plurality of patterns have different DSV values, select a pattern, make that the DSV value after selecting is minimum.DSV value after the selection is the summation of DSV value of DSV value and the selected pattern of adjacent sequence in selected pattern front.

Fig. 4 has shown an example that will be recorded in a pattern among the second retaining zone VFO (VFO pattern), and this example is desirable especially in first example of the present invention.A characteristic of the VFO pattern shown in Fig. 4 is 4 channels bits record marks and the space that this pattern comprises repetition.Pattern shown in Figure 4 satisfies condition 1 to 3 as stated.

Pattern with single length (a single length of) of 4T has guaranteed enough amplitudes (condition 1) of reproducing signal RF.The pattern that maximum mark/space switching times is provided is the pattern with single length (minimum length) of 3 channels bits, but the pattern with single length of 4T is considered to preferable, and its reason is following.In the record and reproducing characteristic of a CD media of realizing high density recording, the amplitude of reproducing signal RF with minimum length position is usually significantly less than longer mark/space.Therefore, utilize the length of 3 channels bits, may not obtain the quilt reproducing signal RF of level amplitude limit stably.Therefore, in order to satisfy

condition

1 and 2 simultaneously, the pattern with single length of 4T is considered to preferable.Can have DSV=0 owing to have the pattern of the single length of 4T, this pattern also satisfies condition 3.

The pattern among the second retaining zone VFO of being recorded in is not limited to have the pattern of the single length of 4T.Preferably write down a pattern that satisfies full terms 1 to 3, but these conditions can have according to the record of CD media and the priority of reproducing characteristic.For example, under the situation of the CD media of the enough amplitudes (condition 1) that reproducing signal RF are provided in the record mark or the space of the minimum length that has 3T with, can use one to have the 3T record mark of repetition or the pattern in space.Like this, the number of times of mark/space switching is compared with the pattern of the single length with 4T and can be increased (condition 2).By this way, condition 2 obtains the priority higher than condition 1, and data PLL can lock quickly.Perhaps, even also do not provide in the pattern of the single length that has 4T under the situation of CD media of enough amplitudes of reproducing signal RF, can use the 5T record mark with repetition or the pattern in space.In this case, condition 1 obtains higher priority than condition 2; That is, be reduced though the number of times that mark/space is switched is compared with the pattern of the single length with 4T, the precision of data level amplitude limit can be enhanced.

Fig. 5 has shown the illustration pattern that when Tmin=3 and Tmin=2, will be recorded among the second retaining zone VFO.In example shown in Figure 5, when Tmin=3, use one and have the 4T record mark of repetition and the pattern in space; And, when Tmin=2, use one and have the 3T record mark of repetition and the pattern in space.

Like this, the pattern with single length of (Tmin+1) individual channels bits provides enough amplitudes of reproducing signal RF, so satisfies condition 1.

When using one 8/16 modulating system, a Tmin=3 and 1 byte=16 channels bits.Therefore, 4T mark or space are repeated 4 times in each byte.Because the length of the second retaining zone VFO in first example is 91 bytes, so 4T mark or space are repeated (=91 * 4) 364 times.

8/16 modulating system is one and is used for 8 bit binary data are transformed into a system with code word of 16 channels bits.8/16 modulating system is for example described in detail in day disclosure text No.8-31100.In 8/16 modulating system; A plurality of map tables are distributed to (pre-modulation) data before 8 modulation; And the switching map table, so that data conversion before 8 modulation is become a code, make modulation back (post-modulation) code sequence have the least possible low frequency component.Switch map table,, make the absolute value of the DSV in the code sequence minimum simultaneously so that satisfy the condition of minimum reversal interval d=2 and maximum reversal interval k=11.

Fig. 6 has shown an example of a pattern (SY pattern) that will be recorded among the 3rd retaining zone SY, and this example is desirable especially in first example of the present invention.A characteristic of SY pattern shown in Figure 6 is that this pattern comprises that length is the record mark or the space of 14 channels bits (14T), and this is (Tmax+3) individual channel bit length.The length of 14T differs 3 with the maximum mark/space length Tmax=11 (11T) that will be recorded in the data bit stream among the DATA of data area.Therefore; As above with reference to figure 3 about being recorded in the description of the pattern among the first retaining zone PA; With respect to about 1 edge shifting, provide enough mistake tolerance limit to prevent that the 11T pattern among the DATA of data area is mistakenly detected as the pattern among the 3rd retaining zone SY.Like this, the SY pattern is used to the beginning in identification (or expression) second frame zone 202 (frame zones).

To be described in the absolute position (after this being called " address ") that a kind of in first example of the present invention is used for discerning the information mark road 102 of CD media 101 below.For specified address record data on the CD-R medium, pen recorder need read the information on the specified address before data recording, and the search data position that will record.In order to obtain an address information in the zone of record data not also, address information need be by preformatting.According to an illustrative preformatting technology, address information representes by using at the definite pre-pit of recessed and the bossing of recording surface, and perhaps address information is represented by the tortuous mode of the groove that is formed for forming information mark road 102.

In the present invention, can use any technology to obtain the address information in the CD media 101.Only if in this instructions, describe especially, otherwise each data block all is given intrinsic address information, and the established part of the address information of each data block through visit information mark road 102 obtains.

Refer again to Fig. 2, with describing a method that is used at the CD media with above-mentioned data layout 101 (Fig. 1) identifying recording layer.On CD media 101, adopt data block 103 to come record data as least unit.A series of data are recorded among the second retaining zone VFO in first frame zone 201 beginning and stop.Here, comprise that first frame zone 201 in the position of these place's addition record data is called as " linking frames zone ".

When the final position from a series of data recording writes down additional data, confirm the starting position of additional data record and the final position of additional data record, make and always satisfy the S≤E that concerns with following condition.The starting position of additional data record is as S the byte of the second retaining zone VFO in first frame zone 201 in a linking frames zone (" S " is a rational number less than the byte number of the length of the expression second retaining zone VFO).The final position of additional data record is E the byte (" E " is a rational number less than the byte number of the length of the expression second retaining zone VFO) of the second retaining zone VFO.Through confirming the starting position and the final position of additional data record like this, the addition record section data does not comprise the zone of any pattern of not record (VFO pattern) that stays therein.Next when not writing down any VFO pattern regional when staying, playback system is then arranged not by undesirable possibility of accurate locking.

Difference between S and the E is preferably under the situation of the various fluctuating error factors of considering a drive unit to be confirmed.Be under zero the perfect condition at fluctuating error, when data recording stops and the byte number that when start-of-record, provides by (S-E) be recorded in the same area.Therefore, the data of precedence record are rewritten by the data of current record in this zone.Therefore, the byte number that is preferably provided by (S-E) is set to the upper limit of fluctuating error factor or higher.In this case, even when fluctuating error is maximum, also can under the situation that does not stay the zone of not writing down any VFO pattern, carry out the additional data record.

When CD media 101 is the rewritable optical disc medium of formation such as employing phase-change recording material, repeat the deterioration that the additional data record possibly cause recording layer many times in same position.Minimum and still improve rewriting property (increase data and can be recorded in the number of times on the same mark road) for the deterioration that makes recording layer, when each record data the starting position of data recording and final position can be in a specialized range randomly changing.Under such a case, the length in first frame zone 201 needs not to be a fixed byte length.Its reason is that the length of the second retaining zone VFO changes according to the starting position of data recording and the variation of final position.The starting position of data recording and final position should change the length of how much preferably considering the second retaining zone VFO, the degradation characteristic that locks required time cycle of playback system, recording layer waits to confirm.

According to the present invention, the frame zone of beginning additional data record, be that the linking frames zone is first frame zone 201 that does not comprise data area DATA.Therefore, in addition additional data record neither carry out discontinuously.Therefore, eliminated undesirable possibility that the addition record data were not read and consequently were recorded in a loss of data in the frame zone.Compare reading the mistake tolerance limit and can be significantly increased in the addition record data with in the DATA of data area, carrying out the conventional CD media that links (additional data is recorded among the DATA of data area).Consequently, even at the starting position and the final position of data recording, data recording can stably be carried out with reproducing also.

As can be from what Fig. 2 understood, pen recorder be as follows at CD media 101 identifying recording layers.At first; Start-of-record VFO part 2102 (the first synchronizing code sequence that provides in order stably to reproduce data) shown in Fig. 2 at first is recorded in 201 (the 3rd zones), first frame zone on the information mark road 102, writes down at least one second frame zone 202 then.Therefore, the zone (first area) at least one second frame place is in the back in first frame zone 201 (the 3rd zones).201 (the 3rd zones), first frame zone comprise the zone that wherein will write down a start-of-record VFO part 2102 (the first synchronizing code sequence).

Second frame zone 202 comprises the SY pattern (the second synchronizing code sequence) of the beginning that is used for discerning second frame zone 202 and wants at least a portion (will be recorded in the data of data area DATA) of data recorded.Under the situation of data corresponding to a plurality of data blocks 103 that will be recorded on the CD media 101, first frame zone 201 is provided, on the border of two adjacent data blocks 103 so that record PA pattern and VFO pattern.When the data recording on CD media 101 stops, a PA pattern (the 3rd synchronizing code sequence) is recorded in after at least one second frame zone 202.Then, (record finish) VFO part 2101 (the 4th synchronizing code sequence that provides in order stably to reproduce data) accomplished in the record of shown in the record diagram 2.The PA pattern is accomplished VFO part 2101 with record and is recorded in 201 (second areas) of first frame zone.This first frame zone 201 (second areas) are different with regional 201 (the 3rd zones) of first frame of writing down said start-of-record VFO part 2101 when the start-of-record, provide in the back of first area.First frame zone, 201 (second areas) comprise the zone that wherein will write down PA pattern (the 3rd synchronizing code sequence) and record completion VFO part 2101 (the 4th zones).

In order to change the starting position of addition record randomly, the length of the start-of-record VFO part 2102 (the first synchronizing code sequence that provides in order stably to reproduce data) as shown in Figure 2 in the VFO pattern can be provided with at random.In order to change the final position of addition record randomly, the length that VFO part 2101 (the 4th synchronizing code sequences that provide in order stably to reproduce data) accomplished in the record as shown in Figure 2 in the VFO pattern can be provided with at random.When starting position or the final position of record during by randomly changing, the length that VFO part 2101 or start-of-record VFO part 2102 accomplished in record is not indispensable by randomly changing.As stated, the position of record data to obtain by the address information of preformatting, and no matter data record whether.Therefore, the starting position of record or final position can be with respect to the absolute position on the CD media 101 that obtains through the reproduction address information and by randomly changings.In this case, the record end of accomplishing VFO part 2101 preferably is located in respect to the beginning of start-of-record VFO part 2102 in the back.

As stated, the starting position of additional data record and final position are provided so that always to satisfy and concern S≤E.Therefore, being recorded in record on the CD media 101 accomplishes at least a portion of VFO part 2101 (the 4th synchronizing code sequences) and is rewritten by the start-of-record VFO part 2102 (the first synchronizing code sequence) of the VFO pattern that when carrying out the additional data record, is write down.

As stated, in first example of the present invention, be included in one first frame zone and frame zone after the first frame zone of beginning as a data block of the least unit that writes down and reproduce.The first frame zone comprises first retaining zone (PA) and second retaining zone (VFO).The second frame zone comprises the 3rd retaining zone (SY) and a data area (DATA) that is used for record data.Because such structure, the beginning/termination of data recording (link) can be carried out in second retaining zone (VFO) in first frame zone (linking frames zone).Various fluctuating factors in the data recording can be absorbed in the second retaining zone VFO, so always provide stable data record and reproduction.System overhead is retained as less, for each data block just over a frame.

According to the present invention, will bearing accuracy accurately not be set to less than a channels bits.Therefore, can be with simple structural design drive unit, thus reduce the manufacturing cost of drive unit.

Fig. 7 A shown in first example of the present invention a normal frames zone (promptly; The illustration logging mode of starting position second frame zone 202); Fig. 7 B has shown the illustration logging mode of the starting position in the linking frames zone (that is, first frame zone 201) in first example of the present invention.Example shown in Fig. 7 A and the 7B is when the run-length limited code that use has parameter d=1, k=9 and a n/m=1.5 is used for the modulation of data area, to obtain.

In Fig. 7 A, the starting position in normal frames zone refers to the beginning in the second frame zone 202 (Fig. 2) consistent with the data layout of first example of the present invention.202 the beginning in second frame zone provides the 3rd retaining zone SY of (that is 24 channels bits) length that has 2 bytes.Data area DATA provides since the 3rd byte.In the SY pattern of the 3rd retaining zone SY, underlined partial mode " 10000000000001001 " is corresponding to (Tmax+3) pattern (Tmin+1) in the run-length limited code with parameter d=1 and k=9.Consider and being connected of adjacent data area DATA in front, preferably confirm " YYYYYY " (left side of Fig. 7 A), so that satisfy the run-length restriction of d=1 and k=9 in the beginning of SY pattern.

In Fig. 7 B, the starting position in linking frames zone refers to the beginning in the first frame zone 201 consistent with the data layout of first example of the present invention.201 the beginning in first frame zone provides the first retaining zone PA of (that is 24 channels bits) length that has 2 bytes.The second retaining zone VFO provides since the 3rd byte.Underlined partial mode " 10000000000001000001 " in the first retaining zone PA and the second retaining zone VFO is corresponding to (Tmax+3) pattern (Tmin+4) in the run-length limited code with parameter d=1 and k=9.The unique pattern in linking frames zone, promptly the regional unique pattern of (Tmax+3) pattern and normal frames (Tmin+4), promptly the relation of (Tmax+3) pattern (Tmin+1) does; Length from the starting position to the starting position of (Tmax+3) is identical (8 channels bits), and final position (Tmax+3) is identical.

In Fig. 7 B, consider and being connected of adjacent data area DATA in front, preferably confirm " YYYYYY " in beginning, so that satisfy the run-length restriction of d=1 and k=9." YYYYYY " among Fig. 7 B can be identical with " YYYYYY " among Fig. 7 A.Even in this case, the code distance between PA pattern and the SY pattern still is 3, because adjacent (Tmax+3) pattern afterwards in the SY pattern is (Tmin+1), and adjacent (Tmax+3) pattern afterwards in the PA pattern is (Tmin+4).

Therefore; For example; Even when SY pattern and PA pattern all have the length of 2 bytes and therefore the pattern of many types can not be formed when (Tmax+3) is included in the length of 2 bytes, can be increased by the number of types of the adjacent pattern that makes a distinction in the length of (Tmax+3) pattern afterwards.Like this, the degree of freedom of pattern use increases.

When the degree of freedom of pattern use increases; Also might code distance is remained 2 or more situation under increase the number of types of the pattern that can be used as SY pattern or PA pattern, or under the situation of the number of types of the pattern that keeps can be used as SY pattern or PA pattern, code distance is increased to 3 or more on the contrary.

The byte length in 201 and second frame zone, first frame zone 202 and the number in the zone of second frame in each data block 103 202 will be described in this example.

The byte length in the byte length in first frame zone 201 and second frame zone 202 is preferably roughly the same each other, and perhaps one of them regional byte length roughly is the integral multiple of another regional byte length.Through making one byte length in 201 and second frame zone, first frame zone 202 roughly is the integral multiple of another byte length, and the data that same circuits (timing generation circuit etc.) that then might service recorder/transcriber comes for example when record data, to be used for these two frame zones produce and when the reproduction data, are used in the frame in these two frame zones slotting.Like this, the scale of data recording/reproducing device can reduce, and therefore cost can reduce.In first example of the present invention, 201 and second frame zone, first frame zone 202 all has the length of 93 bytes.Perhaps, the byte length in first frame zone 201 can be about integral multiple of the byte length in second frame zone 202.

Have in first frame zone 201 under the situation of length of 93 bytes; Pattern shown in Figure 3 is arranged in the first retaining zone PA; Pattern shown in Figure 4 is arranged in the second retaining zone VFO, and the first retaining zone PA has the length of 2 bytes, and the second retaining zone VFO has the length of 91 bytes.In this case, the pattern among the second retaining zone VFO comprises the 4T record mark or the space of repetition 182 times.

In first example of the present invention, the number in second frame zone 202 in each data block 103 is 208.This number has confirmed to insert the frequency in first frame zone 201 and the data size of data block 103.When this number is big, less by the system overhead (redundancy section of form) that first frame zone 201 that does not have data area DATA causes, therefore obtained to increase the effect of the memory capacity of CD media 101.Yet such big figure is disadvantageous when handling undersized data, because the data size of data block 103 is increased.

As shown in Figure 2, an ECC piece comprises 4 continuous data block 103.In this case, the number in second frame of each ECC piece zone 202 is 208 * 4=832.The ECC piece is defined as the coding unit of an error check code.For example, adopting known Reed Solomon code two dimensional terrain to become under the situation as one of an error check code known product code, the ECC piece is the unit of product code.When the 3rd retaining zone SY had the length of 2 bytes, the overall dimensions of all data area DATA of each ECC piece was 91 * 832=75712 byte.In first example of the present invention, 65536 bytes in 75712 bytes are used to user data, and remaining byte is assigned to redundant data, for example error checking and correction, block identification ID etc.

Through forming an ECC piece that the error check code of integer number of data blocks, wherein each data block is the least unit of a series of data recording, and the effect that helps the management of record data in drive unit (pen recorder or transcriber) is provided.In first example of the present invention, 1 ECC piece=4 data block, but the present invention is not limited to this point.Even the number of the data block that in an ECC piece, comprises also can provide similar effects when changing.For example, 1 ECC piece can comprise a data block.Yet in first example, the number of the data block that in an ECC piece, comprises must have a upper limit, because the guiding frame zone of each data block is first frame zone, 201 (that is the redundant datas) that do not comprise data area DATA.Consider the error checking and correction performance and the system overhead of drive unit, the number of the data block that preferably will in an ECC piece, comprise is confirmed as a value that is suitable for the use of optical disc apparatus 101, the performance of drive unit etc.

Irrelevant with second frame zone 202, the pattern that is recorded among the 3rd retaining zone SY does not need identical.For example, second frame zone 202 after first frame in each data block 103 zone 201 can have one and is different from the AD HOC that is recorded in the pattern in other second frames zones 202.Like this, AD HOC above-mentioned can be discerned by drive unit.Therefore, the first data area DATA in each data block 103 can be to be detected with degree of precision, and this has improved the reliability of drive unit.In second following example, the SY pattern that is recorded in one beginning in a plurality of second frames zone 202 is different with the SY pattern of the beginning that is recorded in other second frame zones 202.

In first example, first frame zone (first area and the 3rd zone) comprises the first retaining zone PA and the second retaining zone VFO, but also can comprise other synchronizing code sequence or data bit streams.

(example 2)

Fig. 8 has shown the top view according to the CD-R medium (recording medium) 3101 of second example of the present invention.As shown in Figure 8, on a recording surface of CD media 3101, form record mark road 3102 (posting fields) in a spiral manner.Record mark road 3102 is divided into plurality of data piece 301.In other words, on the recording surface of CD media 3101, data block 301 is arranged to form information mark road 3102 in a circumferential direction continuously.

Fig. 9 has shown an example of the data layout of the CD media 3103 in second example of the present invention.In Fig. 9, be denoted by the same reference numerals with top those components identical of describing with reference to figure 2, will be not described in detail here.In Fig. 9, the back in the zone shown in the regional on the left side shown in the right.

As shown in Figure 9, each data block 301 comprises 201 and 8 sectors 3103, one first frame zone.Four data blocks 301 form an ECC piece 302.Therefore, an ECC piece comprises 32 sectors.

The a plurality of second frame zones that in each data block 301, comprise are grouped into a plurality of sectors 3103, and each sector comprises 26 second frame zones.

Each sector 3103 (the 4th zone) comprises 26 second frame zones.Each frame zone has the length of 93 bytes.The frame zone that is positioned at the beginning of sector 3103 represented by label F0,25 remaining frame zones by label F1, F2 ... F24 and F25 represent.

Frame zone F0 is included in its retaining zone SY0 that begins (the 3rd retaining zone) and data area DATA subsequently.Frame zone F1 is included in its retaining zone SY that begins (the 3rd retaining zone) and data area DATA subsequently respectively to F25.Retaining zone SY0 and retaining zone SY have the length of 2 bytes.Therefore, the length of each among frame zone F0 and the regional F1 of frame all data area DATA in the F25 is 91 bytes.

The sum of the byte of all the data area DATA in each sector 3103 is 91 * 26=2366 byte.Be recorded in user data in each sector and have the length of 2048 bytes, such as the address information of the record position that is used for recognition data, be used to detect or the redundant data of the parity check code of check for errors etc. has the length of 318 bytes.User data and redundant data are 2366 bytes altogether.

The data bit stream that is recorded among the DATA of data area is not registered as binary data itself, but before by record, carries out conversion by the record of a coupling CD media and the modulating system of playback signal characteristic.Here supposition adopts one 8/16 modulating system to carry out the NRZI record.The data bit stream that is recorded among each data area DATA has the length of 91 * 16=1456 channels bits, and comprises record mark or the space of minimum length Tmin with 3 and 11 s' maximum length Tmax.

The beginning that provides retaining zone SY0 to be used to discern frame zone F0, and retaining zone SY0 preferably has the absent variable pattern that writes down at least one data bit stream in will being recorded in data area DATA.Through absent variable pattern in the DATA of data area of record in retaining zone SY0, retaining zone SY0 can easily make a distinction with data area DATA when the reading of data bit stream.

Provide each retaining zone SY to be used to discern the beginning of second frame zone F1 to each second frame of F25.The same with the retaining zone SY0 in the F0 of frame zone, each retaining zone SY preferably has the absent variable pattern that writes down at least one data bit stream in will being recorded in data area DATA.Through absent variable pattern in the DATA of data area of record in retaining zone SY, retaining zone SY can easily make a distinction with data area DATA when the reading of data bit stream.After this, the pattern that is recorded among retaining zone SY or the retaining zone SY0 also is called as one " synchronizing code sequence ".

Figure 10 has shown each a example of the synchronizing code sequence that begins to locate that is arranged in 26 frame zones that sector 3103 (Fig. 9) comprises.The synchronizing code sequence is classified into two types, SY0 pattern and SY pattern.The SY pattern is arranged in second to the 26th frame zone.

Figure 11 has shown an example that in second example of the present invention, preferably is used as a pattern of synchronizing code sequence.Pattern shown in Figure 11 comprises a record mark or a space with length of 14 channels bits (14T), and wherein 14T is (Tmax+3) individual channel bit length.In second example, as stated, the maximum mark/space length Tmax that be recorded in the data bit stream among the DATA of data area is 11 channels bits (11T), and the 14T that comprises in this and the synchronizing code sequence differs 3.Even when the edge shifting of 1 channels bits occurring owing to the The noise that produces at reproduction period and consequently the 14T mark (or 14T space) in the synchronizing code sequence shortens to 11T mark (or 11T space) among 13 channels bits and the data area DATA and is elongated to 12 channels bits, the difference of 1 channels bits is arranged still between the mark (or space) among mark in the synchronizing code sequence (or space) and the data area DATA.Like this, with respect to about 1 edge shifting, provide enough mistake tolerance limit to prevent that the 11T pattern among the DATA of data area is mistakenly detected as the pattern in the synchronizing code sequence.

Provide one 2 therebetween or more code distance in order SY0 pattern and SY pattern to be distinguished from each other out, to be preferably in.Here, code distance refers to the figure place that differs between two data bit streams.Under the situation of NRZ record, code distance is provided by the data bit stream in the NRZ representation.Under the situation of NRZI record, code distance is provided by the data bit stream in the NRZI representation.When the code distance between SY0 pattern and the SY pattern was equal to or greater than 2, even when 1 drift errors in the process that reads a pattern, occurring, a pattern can be identified as another pattern by error yet.

When code distance was equal to or greater than 3, recognition performance was further improved.For example, adopt code distance 2, when SY0 pattern and SY pattern near drifting about on the direction each other one the time, these two patterns become identical, can not be distinguished from each other out.On the contrary, adopt to be equal to or greater than 3 code distance, when SY0 pattern and SY pattern near drifting about on the direction each other one the time, a difference that is equal to or greater than is still arranged, these two patterns can be distinguished from each other out.Therefore, SY0 pattern and SY pattern always can be distinguished from each other out, and keep the fault-tolerant of 1 faults simultaneously.As long as the code distance between SY0 pattern and each the SY pattern is equal to or greater than 2, can use polytype SY pattern.

Figure 12 has shown SY0 pattern and the object lesson of SY pattern in second example of the present invention.SY0 pattern and SY pattern all have the length (that is 32 channels bits) of 2 bytes and all comprise a public unique pattern (14T+4T).This equipment matees the length of these two patterns and makes these two patterns comprise that all an advantage of a public unique pattern is to simplify the equipment that is used for detecting pattern, because can comprise a public mode detecting system that is used for these two patterns.

Unique pattern is corresponding to (Tmax+3) pattern (Tmin+1) in 8/16 modulating system.Through will have (Tmin+1) position space (or mark) be positioned adjacent have (Tmax+3) position mark (or space) afterwards, improved the detection performance of pattern itself.In other words, through using (14T+4T), compare the possibility that can reduce error-detecting as detecting pattern during data in read block 3103 with only using 14T as detecting pattern.Through with (15T+3T) or (13T+5T) adding detecting pattern to, and be not only (14T+4T), even when an edge shifting appears at the rear end of 14T, also can avoid not detecting 14T, and the possibility of error-detecting still is held as far as possible little.

Figure 12 has shown four types pattern that can be used as the SY0 pattern and four types the pattern that can be used as the SY pattern (two types are used for state 1 and are used for state 3 and state 4 with 2, two types of states).Here, state 1 to 4 shows which the index information in a plurality of map tables that will select 8/16 modulating system.The pattern that is used for state 1 and state 2 has a characteristic, and promptly the zero run-length in MSB one side (left side of Figure 12) is 2 or 3.The pattern that is used for state 3 and state 4 has a characteristic, and promptly the zero run-length in MSB one side (left side of Figure 12) is 0; That is, MSB is with the beginning of " 1 " position.

To describe below and how from four SY0 patterns, to make one's options.When adjacent before the retaining zone SY0 modulation result, when promptly the NextState of last data byte among the data area DATA in the F25 of frame zone after modulated is 1 or 2, selection mode 1 and state 2.Otherwise, selection mode 3 and state 4.Like this, zero run-length can be in a specialized range of the tie point of last byte of frame zone F25 and SY0 pattern (in 2 to 10 the scope).About the SY pattern, carry out in a similar fashion and select.

Then, will describe how to select first selection code sequence (left side that is presented at Figure 12 is half of) or the second selection code sequence (being presented at right one side of something of Figure 12).Select in the code sequence first, CDS (code word numeral summation) be one on the occasion of; Select in the code sequence second, CDS is a negative value.Here, CDS is the value that all the summation in the code sequence (pattern) that obtains through the NRZI conversion of calculating by code sequence obtains, and supposes that MSB is 1.Position " 1 " is made as+1 and position " 0 " is made as-1 carries out summation.That is, the summation of the CDS of adjacent DSV value and code sequence in front is the DSV value of having selected after this code sequence.Because first selects the symbol and second of the CDS of code sequence to select the symbol of code sequence opposite each other, one of them makes that the value of DSV is more approaching zero so select them.Consequently, the value of DSV can be by control effectively.

The notable attribute of the pattern among Figure 12 will be described below.Notable attribute is to can be used as four types pattern of SY0 pattern and the code distance that can be used as between four types the pattern of SY pattern all is equal to or greater than 2 (in the NRZI representations).

For example, inspection can be used as the underlined pattern " 10010001000001000000000000010001 " in the pattern of SY0 pattern and can be used as the code distance between each of four kinds of patterns of SY pattern.Code distance between the pattern " 00010000000001000000000000010001 " in above-mentioned underlined pattern and the NRZI representation is 7.This code distance is through relatively through to carrying out pattern " 11100001111110... " that the NRZI conversion obtains and finding through the latter's pattern that begins with position " 0 " being carried out the pattern " 00011111111110... " that the NRZI conversion obtains with the former of position " 1 " beginning.

Equally; Code distance between above-mentioned underlined pattern and the pattern " 00100000001001000000000000010001 " is 4; Code distance between above-mentioned underlined pattern and the pattern " 10001000010001000000000000010001 " is 3, and the code distance between above-mentioned underlined pattern and the pattern " 10001000000001000000000000010001 " is 6.Therefore, all code distances all satisfy 2 the condition that is equal to or greater than.Remain through all code distances and to be equal to or greater than 2,, also can reduce the possibility of the wrong identification of two patterns even when a mistake such as a drift etc. occurring with SY0 pattern and SY pattern.Through only the guiding frame of sector 3103 zone F0 and the regional F1 of other frames being differentiated to F25, can easily detect the beginning of sector 3103.Being recorded in each frame zone F1 can be to comprise that a pattern with (Tmax+3) position and one have the pattern of (Tmin+1) position and satisfies any one in a plurality of patterns that code distance with SY0 is equal to or greater than 2 condition to the pattern among the retaining zone SY of the beginning of F25.

Figure 13 has schematically shown the different code distance between the type of synchronizing code sequence (pattern).Figure 13 has shown the relation between synchronizing code sequence SY0 (SY0 pattern) and the synchronizing code sequence SY (SY pattern).When the code distance when therebetween had only 1,1 faults when reading the SY0 pattern, occurring, will to cause the SY0 pattern to be read as identical with the SY pattern.Therefore, when 1 faults occurring, even confirm the type of the pattern that (having only just definite two definite technology that pattern is mutually the same when whole pattern is mated each other fully) can not be confirmed to be read through coupling fully.

When the code distance between SY0 pattern and the SY pattern is 2,1 faults in a pattern, occurs and can not cause two patterns mutually the same.Even when in these two patterns, 1 faults all occurring, as long as use fully coupling to confirm, the type of the pattern that also can confirm to be read.Therefore, employing coupling fully is definite, and confirming of the type of synchronizing code sequence is possible.

When the code distance between SY0 pattern and the SY pattern was 3, also still to make code distance be 1 even 1 faults in these two patterns, all occurs.Therefore, even when using the definite technology that allows 1 faults, also can confirm the type of read mode.When using that coupling is confirmed fully, even can allow 2 faults.

From top description, be appreciated that the code distance that uses between the type be equal to or greater than 3 synchronizing code sequence is 2 compare with using code distance, reliability is higher.

Figure 14 has shown the illustration inner structure of frame zone F0.In example shown in Figure 9, data area DATA only is positioned at adjacent after retaining zone SY0.On the contrary, in example shown in Figure 14, the Data Position identified areas data ID that is used for the Data Position identified areas and error checking and correction zone parity checking be provided after retaining zone SY0 adjacent.Because such structure, can be after detecting the SY0 pattern that is recorded among the retaining zone SY0 content of reading of data position identified areas data ID immediately.The content of Data Position identified areas data ID for example can comprise a sector number.In this case, the position of sector can only be confirmed through reading of data position identified areas data ID.Therefore, the position of sector can only be discerned through detecting the SY0 pattern, and this allows transcriber easily and promptly to detect the sector.

Figure 15 has shown the object lesson of SY0 pattern, SY pattern and PA pattern in second example of the present invention.SY0 pattern and SY pattern and top described identical with reference to Figure 12 are not described in detail here.

To confirm the PA pattern with the top similar mode of mode with reference to the described SY0 of being used for pattern of Figure 12 and SY pattern.The PA pattern has the length of 2 bytes (that is 32 channels bits).For consistent with 8/16 modulating system; State Control (be used for the pattern of state 1 and state 2 or be used for state 3 and the selection of the pattern of state 4) is possible; And DSV control (selection of pattern, the symbol of reciprocal CDS, that is, plus or minus) also be possible.DSV control suppresses the DC component of modulation back data bit stream.

SY0 pattern, SY pattern and PA pattern all comprise a public unique pattern (14T+4T).This equipment has identical figure place and comprises that an advantage of these three patterns of a public unique pattern is that the equipment that is used for detecting pattern can be simplified, because can comprise a commonality schemata detection system that is used for these three patterns.

The notable attribute of the pattern among Figure 15 is four types pattern can be used as the SY0 pattern, can be used as four types pattern of SY pattern and the code distance that can be used as between four types the pattern of PA pattern all is equal to or greater than 2 (in the NRZI representations).

For example, inspection can be used as the underlined pattern " 00000010010001000000000000010001 " in the pattern of PA pattern and can be used as each in four patterns of SY0 pattern and can be used as the code distance between each in four patterns of SY pattern.Code distance between the SY0 pattern " 00100100001001000000000000010001 " in above-mentioned underlined pattern and the NRZI representation is 4.This code distance is through relatively through to carrying out pattern " 11111100011110... " that the NRZI conversion obtains and finding through the latter's pattern that begins with position " 0 " being carried out the pattern " 00111000001110... " that the NRZI conversion obtains with the former of position " 1 " beginning.

Equally; Code distance between above-mentioned underlined pattern and the SY0 pattern " 00010000100001000000000000010001 " is 4; Code distance between above-mentioned underlined pattern and the SY0 pattern " 10010001000001000000000000010001 " is 5, and the code distance between above-mentioned underlined pattern and the SY0 pattern " 10000000010001000000000000010001 " is 6.Therefore, all code distances all satisfy 2 the condition that is equal to or greater than.Code distance between above-mentioned underlined pattern and the SY pattern " 00010000000001000000000000010001 " is 6; Code distance between above-mentioned underlined pattern and the SY pattern " 00100000001001000000000000010001 " is 5; Code distance between above-mentioned underlined pattern and the SY pattern " 10001000010001000000000000010001 " is 3, and the code distance between above-mentioned underlined pattern and the SY pattern " 10001000000001000000000000010001 " is 7.Therefore, all code distances all satisfy 2 the condition that is equal to or greater than.

The object lesson of SY0 pattern, SY pattern and PA pattern when the run length of data bit stream is limited to Tmin=3 and Tmax=11 after modulation has been described in the above.Below, the object lesson of SY0 pattern, SY pattern and PA pattern when Tmin=2 and the Tmax=8 is described with reference to Figure 16.The pattern that describes below is for example being used so-called (1-7) modulating system, especially desirable when promptly having the run-length limited code system changeover data area DATA of parameter d=1, k=7, m=2 and n=3.

As stated, Figure 16 has shown the object lesson of SY0 pattern, SY pattern and PA pattern desirable in second example of the present invention.Pattern shown in Figure 16 all has the characteristic of the pattern " 100000000001001 " that comprises underlined NRZ representation.Commonality schemata is corresponding to (Tmax+3) pattern (Tmin+1) of (1-7) modulating system.The advantage and top in first example, describe the same of so public unique pattern are provided.

In example shown in Figure 16; Four types pattern can be used as the SY0 pattern is provided, has can be used as four types pattern of SY pattern and has can be used as four types pattern of PA pattern that (two types just are used for that the LSB of the coded word of front is the situation of " 0 ", the situation of promptly not reversing at LSB through the NRZI representation; Two types just are used for that the LSB of the coded word of front is the situation of " 1 ", and the situation of counter-rotating promptly takes place at LSB through the NRZI representation).Based on the classification of the LSB of the coded word of front just corresponding to the Tmin in (1-7) modulating system.In other words, be 0 or being equal to or greater than 1 carries out above-mentioned selection through zero run-length according to LSB one side, when the data of front just were modulated, run-length restriction can realize in the coupling part.

First select code sequence (left side that is presented at Figure 16 is half of) have on the occasion of CDS, second select code sequence (being presented at the right half of of Figure 16) to have negative value CDS.Like this, described with reference to figure 15 like above, the DSV value can be effectively controlled.

The notable attribute of the pattern among Figure 16 is four types pattern can be used as the SY0 pattern, can be used as four types pattern of SY pattern and the code distance that can be used as between four types the pattern of PA pattern all is equal to or greater than 2 (in the NRZI representations).

For example, inspection can be used as the upper left pattern " 010000000100000000001001 " in the pattern of SY0 pattern and can be used as each in four patterns of SY pattern and can be used as the code distance between each in four patterns of PA pattern.Code distance between the SY pattern " 010001010100000000001001 " in above-mentioned underlined pattern and the NRZI representation is 2.This code distance is through relatively through to carrying out pattern " 1000000001... " that the NRZI conversion obtains and finding through the latter's pattern that begins with position " 1 " being carried out the pattern " 1000011001... " that the NRZI conversion obtains with the former of position " 1 " beginning.

Equally; Code distance between above-mentioned underlined pattern and the SY pattern " 010010000100000000001001 " is 4; Code distance between above-mentioned underlined pattern and the SY pattern " 101010000100000000001001 " is 3, and the code distance between above-mentioned underlined pattern and the SY pattern " 100010000100000000001001 " is 3.Therefore, all code distances all satisfy 2 the condition that is equal to or greater than.Code distance between above-mentioned underlined pattern and the PA pattern " 010101000100000000001001 " is 2; Code distance between above-mentioned underlined pattern and the PA pattern " 010101010100000000001001 " is 5; Code distance between above-mentioned underlined pattern and the PA pattern " 100010100100000000001001 " is 3, and the code distance between above-mentioned underlined pattern and the PA pattern " 101010100100000000001001 " is 3.Therefore, all code distances all satisfy 2 the condition that is equal to or greater than.

Keep being equal to or greater than 2 with SY0 pattern, the SY pattern code distance relevant with the PA pattern through making, even when one occurs such as a mistake of drifting about etc., the possibility of the wrong identification of three patterns also can reduce.Therefore, the guiding frame of sector 3103 zone F0 can come to the F25 difference with other frame zones F1, and this helps to detect the beginning of sector 3103.

Can come with other frame zone differences in first frame zone 201 corresponding to the linking frames zone with confirming, this helps to detect link position.Through detecting link position, the uncontinuity of the data that caused by link can easily suitably be handled.Processing of carrying out by pen recorder during will in the 6th and the 7th example, being described in the additional data record below and the processing of in the linking frames zone, carrying out by transcriber.

Figure 17 has shown each another example of the synchronizing code sequence that begins to locate that is arranged in 26 frames zones that sector 3103 (Fig. 9) comprises.In example shown in Figure 17, the SY0 pattern is arranged in the guiding frame zone of sector 3103.{ SY1SY1SY2SY1SY1SY2SY1...SY1SY2SY1} sequentially is arranged in follow-up frame zone from the subsequent frame zone beginning that is close to.In this example, a SY2 pattern is with one frequency localization in three successive frame zones except guiding frame zone.

Figure 18 A has shown that to 18D the order that is recorded on the CD media according to the synchronizing code sequence arranges the example that will be recorded in the synchronizing code sequence in second included in the sector frame zone.Figure 18 A is corresponding to the arrangement of the top synchronizing code sequence of describing with reference to Figure 10.In the example shown in Figure 18 A, the synchronizing code sequence (SY0 pattern) that only is arranged in guiding frame zone be with the synchronizing code sequence that is positioned at other frame zones (SY pattern) be dissimilar.Therefore, when because defective of the recording surface of CD media etc. and when on the position in the sector vertical shift (slip) taking place, be difficult to confirm the position in current frame zone of reading, up to detecting next SY0 pattern.

In the arrangement of Mode S Y0, SY1 and the SY2 of three types of the uses of Figure 18 B, the arrangement through checking minimum three successive frames zone (for example, and SY1SY2SY1}), can confirm to have taken place a forward frame skew still is to vertical shift after having taken place one.{ detect the SY0 pattern immediately after the arrangement of SY1SY2SY1}, owing to be expected at so can be than the beginning that detects the sector under the situation that only detects the SY0 pattern more reliably.

Effective arrangement of this Mode S Y0 of three types, SY1 and SY2 is not limited to above-mentioned arrangement.Adjacent the arrangement after the SY0 pattern can be shown in Figure 18 C { SY1SY2SY1SY1SY2...}, or { SY2SY1SY1SY2SY1...}.This can provide and aforesaid similar effects.Perhaps, a circulation can comprise four the pattern that is equal to or greater than.Figure 18 D has shown such example, i.e. { a SY1SY1SY1SY2SY1SY1SY1SY2...}.

The aforesaid way of the arrangement of the synchronizing code sequence in the second frame zone can be summed up as follows.The SY2 pattern is positioned at the beginning in M frame zone of sector, and the SY1 pattern is positioned at each the beginning in other frames zones.Here; " M " satisfies M=J * K+L; Wherein M is a natural number that is equal to or less than N (N is the regional sum of second frame that in a sector, comprises, is one and is equal to or greater than 3 integer), and J and L are that (J is one and is equal to or greater than 2 integer constant; L is a natural number that is equal to or less than J), K is one and is equal to or greater than 0 integer.When pattern is located by this way,, can confirm to have taken place still to have taken place until (J-1) individual back to vertical shift until (J-1) individual forward frame skew through checking the arrangement in minimum J successive frame zone.

Example shown in Figure 18 B and the 18C is corresponding to the situation of N=26, J=3 and K=0 to 8 wherein.

When with the pattern of three types of the cycle repeats of four patterns (four frame zones),, can confirm until 2 vertical shifts through checking the arrangement in minimum four successive frames zone.Along with the number in the frame that comprises in circulation zone increases to 5,6..., the number of the vertical shift that can detect also increases.Yet,, need the number in the successive frame zone of checked arrangement also to increase along with the number in the frame zone that comprises in the circulation increases.Like this, spent the definite vertical shift of longer time cycle.Under the too much situation of the figure place of a mistake, be difficult to this arrangement of inspection, and possibly undesirably damaged the reliability of transcriber.Therefore, to usually optimum be confirmed as in the circulation in frame zone according to the maximum number or desired other of transcriber of the vertical shift that should be detected.

Figure 19 A has shown that to 19C the order that is recorded on the CD media according to the synchronizing code sequence arranges other examples that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.Figure 19 A is identical with Figure 18 A, and only the cause for reference provides.In Figure 19 B, the synchronizing code sequence (SY2 pattern) that only is arranged in last frame zone be with the synchronizing code sequence that is arranged in other frame zones (SY1 pattern) be dissimilar.In this case, { arrangement of SY1SY2SY1} is compared with the situation that only detects the SY0 pattern, and the reliability that detects the beginning of sector can be enhanced through detecting three continuous modes.Perhaps, shown in Figure 19 C, different synchronization code sequence (SY2 pattern) can be arranged in last a plurality of frames zone of sector rather than last frame zone of sector.

Figure 20 has shown that the order that is recorded on the CD media according to the synchronizing code sequence arranges another example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.In example shown in Figure 20, the synchronizing code sequence (SY2 pattern) that is arranged in an intermediate frame zone of sector be with the synchronizing code sequence that is arranged in other frame zones (SY1 pattern) be dissimilar.For example, when the SY2 pattern is arranged in the 14th frame zone of sector, per 1/2 sector (13 frame zones) record and the dissimilar pattern (SY2 pattern) of other patterns (SY1 pattern).Like this, can be sooner and detect the beginning of sector more reliably.Using under two types the situation of Mode S Y0 and SY1, need be to several successive sector detection SY0 pattern, so that with the beginning of higher reliability detection sector.Under the situation of Mode S Y0, SY1 and the SY2 of three types of arrangements shown in figure 20, only through detect per 13 frames zone { arrangement of SY0SY2} just can be with the beginning of higher reliability detection sector.

As stated,, compare, can improve the reliability of the beginning that detects the sector with using two types synchronizing code sequence through suitably arranging three types synchronizing code sequence in a plurality of frames zone that in a sector, comprises.

When the synchronizing code sequence of using three types, be set to be equal to or greater than 2 (or being equal to or greater than 3) through all code distances and obtain higher reliability.As long as other patterns of two types of SY0 pattern distance are a code distance that is equal to or greater than 2 (or 3), just obtained to improve the effect of the reliability of the beginning that detects the sector.

To be described in the example of the arrangement under the situation of the synchronizing code sequence of using four types below.

Figure 21 has shown each another example of synchronizing code sequence of beginning that is arranged in 26 frames zones that sector 3103 (Fig. 9) comprises.In example shown in Figure 21, a sector comprises 26 frame zones.Four types synchronizing code sequence SY0, SY1, SY2 and SY3 is arranged in this 26 frame zones.The SY0 pattern is arranged in the first frame zone.{ SY1SY2SY3SY1SY2SY3...SY1SY2SY3SY1} sequentially is arranged in the frame zone of back since second frame zone.In this example, except guiding frame zone, SY2 pattern and SY3 pattern are respectively with one frequency localization in three successive frame zones.

Figure 22 A has shown that to 22C the order that is recorded on the CD media according to the synchronizing code sequence when the Mode S Y0 that uses four types, SY1, SY2 and the SY3 arranges the example that will be recorded in the synchronizing code sequence in the second frame zone that comprises in the sector.Figure 22 A is corresponding to the arrangement of the top synchronizing code sequence of describing with reference to Figure 21.In the example shown in Figure 22 A; Even when a vertical shift appears in a position in the sector; Through check minimum three successive frame zones, for example the arrangement of SY1SY2SY3}, also can detect the skew of forward direction occurred or occurred one after to skew.Because expection SY0 pattern is detected as adjacent { after the arrangement of SY1SY2SY1}, so can detect the beginning of sector than the situation that only detects the SY0 pattern more reliably.

Perhaps, shown in Figure 22 B, for the detection of the SY0 pattern that guarantees next sector, only the synchronizing code sequence (SY3 pattern) in last frame zone of sector is dissimilar with the synchronizing code sequence that is arranged in other frame zones.In this case, for example, { arrangement of SY2SY3SY0} is compared with the situation that only detects the SY0 pattern, can improve the reliability of the beginning that detects the sector through detecting.About other frames zone,, { can detect during the arrangement of SY1SY1SY2} even a locational vertical shift in the sector in repetition as top described to 18D with reference to figure 18B.

Again perhaps, shown in Figure 22 C, it can be dissimilar with the synchronizing code sequence that is arranged in other frame zones having only the synchronizing code sequence (SY3 pattern) in the intermediate frame zone of sector.In other frame zones, can repeat { the arrangement of SY1SY1SY2}.In this case, through comprise the arrangement of SY3 pattern in the inspection of per 1/2 sector, can improve the reliability of the beginning that detects the sector.In addition, can improve the reliability that detects a vertical shift.

As stated, through suitably arranging four types synchronizing code sequence in a plurality of frames zone that in a sector, comprises, except the effect that provides through the synchronizing code sequence of using three types, can also improve frame synchronization/sector net synchronization capability.

When the synchronizing code sequence of using four types, be set to be equal to or greater than 2 (or being equal to or greater than 3) through all code distances, obtained higher reliability.As long as other patterns of three types of SY0 pattern distance for being equal to or greater than the code distance of 2 (or 3), just can obtain to improve the effect of reliability of the beginning of detection sector.

As stated, in the foundation CD media 3101 of second example of the present invention, first data unit (sector) comprises a guiding frame zone (F0) and is positioned at least one frame regional (F1 is to F25) of (F0) back, guiding frame zone.Guiding frame zone (F0) comprises that one will be write down the zone of SY0 pattern and the data area (DATA) that is wanted user data.In at least one frame zone (F1 is to F25) each comprises that one will be write down the zone of SY pattern and the data area (DATA) that is wanted user data.The SY0 pattern is all identical on length with the SY pattern, and is set to have betwixt and is equal to or greater than 2 code distance.

More specifically, each the second synchronizing code sequence that SY pattern (the second synchronizing code sequence) distance that is arranged in the guiding frame zone F0 in the individual frame of 26 (defined amounts) zone (F0 is to F25) is arranged in other frames regional (F1 is to F25) is to be equal to or greater than 2 code distance.

Because such structure can easily detect the SY0 pattern during data reproduction, therefore can easily detect the beginning of each first data unit (sector) fast.

Being equal to or greater than at the code distance between SY0 pattern and the SY pattern under 3 the situation, is that 2 situation is compared with code distance, on the contrary further reduced with SY0 pattern error-detecting be the SY pattern or possibility.SY0 pattern and SY1 pattern can be distinguished from each other out, and still allow 1 mistake simultaneously.Therefore, can further improve the reliability of synchronous stability in frame synchronization/sector and the beginning that detects first data unit (sector).Like this, can improve the reliability of transcriber.

Through synchronizing code sequence (SY1 and SY2 with at least two types; Or SY1, SY2 and SY3) be placed on and follow after guiding frame zone at least one frame zone, can obtain information about the arrangement of the synchronizing code sequence in the successive frame zone of the regional F1 of frame in the F25.This information can be used for being expected at the vertical shift that appearance or detection and the correction of the SY0 pattern of next first data unit (sector) cause owing to the non-locking of PLL part.

Preferably the code distance between the SY0 pattern in the guiding frame zone of first data unit (sector) and other synchronizing code sequences (SY1 and SY2, or SY1, SY2 and SY3) is set to be equal to or greater than 2 (or 3).Preferable, the code distance between all dissimilar synchronizing code sequences is set to be equal to or greater than 2 (or 3).By this way, can further improve the reliability of the beginning that detects a sector and the reliability of the frame synchronization that causes by faults such as non-locking such as the PLL part.

First data unit (sector) of defined amount has formed second data unit (data block).First frame zone 201 is arranged in each second data unit (data block).The PA pattern is positioned at the beginning in first frame zone 201.The SY0 pattern is all identical on bit length with the SY1 pattern, and its position is to be equal to or greater than 2 code distance each other apart.Because such structure can easily detect the PA pattern, and can easily detect the beginning of each second data unit (data block) fast during data reproduction.The starting position of a series of information records (link) and final position are set in first frame zone 201 (linking frames zone).Therefore, can improve the reliability of link (addition record), and can stablize executive logging at high speed link position and near the data reproduction of information.

In second example, first frame zone (first area and the 3rd zone) comprises the first retaining zone PA and the second retaining zone VFO, but can comprise other synchronizing code sequence or data bit streams.In above-mentioned preferred example; Synchronous mode SY0 and the synchronous mode SY that will be recorded in the second frame zone except the second frame zone of the beginning that is arranged in each sector that be recorded in synchronous mode PA in the first frame zone, will be recorded in the second frame zone of the beginning that is arranged in each sector are set to have identical length, and also have therebetween and be equal to or greater than 2 code distance.The present invention is not limited to this point.

(example 3)

Figure 23 has shown the top view according to the CD-R medium 401 of the 3rd example of the present invention.On a recording surface of CD media 401, form record mark road 402 in a spiral manner.To write down mark road 402 and be divided into plurality of data piece 403.In other words, on the recording surface of CD media 401, at the continuous array data piece 403 of circumferencial direction to form information mark road 402.

Figure 24 has shown the data layout according to the data block 403 of the CD media 401 (Figure 23) of the 3rd example of the present invention.Shown in figure 24, first frame zone 501 is positioned at the beginning of each data block 403, and a plurality of second frames zone 502 is positioned at after first frame zone 501.First frame zone 501 forms a data block 403 with a plurality of second frames zone 502.In Figure 24, after the zone shown in the regional on the left side shown in the right.

First frame zone 501 is included in its first retaining zone PA that begins, follow at thereafter the second retaining zone VFO and at the 4th retaining zone PS at its end.Each second frame zone 502 is included in its 3rd retaining zone SY that begins and follows the data area DATA thereafter.

In the 3rd example of the present invention, the first retaining zone PA, the second retaining zone VFO, the 3rd retaining zone SY and data area DATA have with first example in identical effect, will be not described in detail.The difference of the 3rd example and first example is that the 4th retaining zone PS provides at the end in first frame zone 501.

The 4th retaining zone PS has and helps transcriber (especially when reading a data block 403a corresponding to the beginning of the data of addition record) when reading each data block 403 to detect the effect of the beginning in second frame zone 502 error-free.Data are recorded among the data block 403a as follows.In the first of the first retaining zone PAa of first frame zone 501a and the second retaining zone VFOa (since E byte of the number of the first retaining zone PAa), with adjacent at a data block 403a data block 403 before record data side by side.That is, VFO part 2101 being accomplished in PA pattern and record is recorded among the 501a of first frame zone.(begin among data block 403a, to carry out addition record (link) from position that last registration stops since the S of the number of the first retaining zone PAa (S≤E) individual byte).That is, start-of-record VFO part 2102 is recorded among first frame zone 501a (the 3rd zone) with the PS pattern.The 3rd zone comprises the 4th a retaining zone PS that wherein will write down the zone of start-of-record VFO part 2102 and wherein will write down the 5th synchronizing code sequence (PS pattern).

In Figure 24, the adjacent second frame zone after the 501a of first frame zone is represented by label 502a.Second frame zone 502a has with top with reference to figure 2 described second frame zones 202 similar structures with other second frame zones 502.In the following description, the 3rd retaining zone SY that in the 502a of second frame zone, comprises is expressed as " SYa " especially.

As top described in the prior art part, transcriber relates to various mistake factors, for example is used for the rotation shake of the table motor of rotary CD medium, frequency of record channel clock or the like.This mistake factor causes starting position discontinuous of the additional data record in the second retaining zone VFOa.Therefore, compare with the length in first frame of each other data block 403 zone 501, the length of first frame zone 501a is owing to mistake (discontinuous) changes.When this situation occurs; When transcriber adopts the second retaining zone VFO reading of data; Even carry out the level amplitude limit that partly carries out by PLL and the locking of clock frequency/phase place definitely, also be difficult to correctly detect the 3rd retaining zone SYa of the beginning that is positioned at second frame zone 502a.When the 3rd retaining zone SYa was not correctly detected, the data area DATAa after the 3rd retaining zone SYa can not be by correct modulation.Consequently, occur one and read mistake.

In the 3rd example of the present invention, increased the beginning that the 4th retaining zone PS comes to detect second frame zone 501a definitely.As long as detect the 4th retaining zone PS, though when the 3rd retaining zone SYa is not correctly detected also modulating data region D ATAa correctly.Like this, can increase prevention ability to mistake.

In the 3rd example of the present invention, the run-length limited code with parameter d=2, k=10, m=8, n=16 and r=1 that is used to modulate is carried out the mark lengths record.That is, be recorded in data bit stream among the DATA of data area and comprise having Tmin to be 3 be 11 record mark or space with Tmax.

Figure 25 has shown an example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and this example is desirable especially in the 3rd example of the present invention.Pattern shown in Figure 25 is { 000001000100100000100001001000001000001000010000} in the NRZ representation.This pattern has 48 channels bits altogether.This pattern has following characteristic: (i) strong auto-correlation; (ii) DSV=0; And (iii) through the partial mode that obtains with 4 partition modes be five types 0000,1000,0100,0010 or 0001 in one.When the run-length limited code that will have parameter d=2, k=10, m=8, n=16 and r=1 was used for the modulation of data area DATA, the pattern shown in Figure 25 had the length of 3 bytes.This pattern is desirable when the adjacent second retaining zone VFO in front has the 4T record mark of repetition/space.This pattern is described in detail in Jap.P. No.3098258.

Figure 26 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and this example is desirable especially in the 3rd example of the present invention.Pattern shown in Figure 26 is { 000000000010000000000100000000001000000000010} in the NRZ representation.This pattern has 45 channels bits altogether.This pattern has following characteristic: the 11T record mark and the 11T space that (i) comprise twice of alternately repetition; And (ii) has a little absolute value to 1 DSV.When the run-length limited code that will have parameter d=2, k=10, m=8, n=15 and r=1 was used for the modulation of data area DATA, the pattern shown in Figure 26 had the length of 3 bytes.This pattern sequence after modulation is desirable especially when not comprising repetition four times or more 11T record mark or space; Because this pattern provides the enough code distances that may reside in all types of patterns in data area DATA and other zones certainly, and is the high resistance error-detecting.

Figure 27 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and this example is desirable especially in the 3rd example of the present invention.Pattern shown in Figure 27 is { 000000000010000001000000100000000001} in the NRZ representation.This pattern has 36 altogether.This pattern has following characteristic: the pattern that (i) comprises 11T7T7T11T; And (ii) have one and equal 0 DSV.When the run-length limited code that will have parameter d=1, k=7, m=2, n=3 and r=1 was used for the modulation of data area DATA, the pattern shown in Figure 27 had the length of 3 bytes.This pattern is desirable especially; Because this has comprised between all types of patterns of pattern in may reside in data area DATA and other zones of pattern of two (Tmax+3)=11T (Tmax is maximum reversal interval) enough code distances are provided, thereby have been the high resistance error-detecting.

A kind of be used in the method for 401 identifying recording layers of the CD media with above-mentioned data layout is not described in detail with similar in the method described in first example here.

Figure 28 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and this example is desirable especially in the 3rd example of the present invention.Pattern shown in Figure 28 is " 000000000001000000000001000000000001000000000001 " in the NRZ representation.This pattern has 48 channels bits altogether.This pattern has following characteristic: the 12T record mark and the 12T space that (i) comprise twice of alternately repetition; And (ii) have one and equal 0 CDS.When 8/16 modulating system is used among the DATA of data area, as (Tmax+1) position 12T be not present in any data bit stream among the DATA of data area.When the pattern in 12T record mark and 12T space was repeated 4 times, the code distance between such pattern and the data bit stream that obtained by 8/16 modulation can be by remarkable expansion.Therefore, pattern shown in figure 28 is an anti-error-detecting very to heavens.

Have at the adjacent second retaining zone VFOa (Figure 24) in front under the situation of a pattern " 0001000100010001... " that wherein repeats 4T record mark and 4T space, the DSV value all remains on 0 since the final position to the 4th retaining zone PS of the second retaining zone VFOa.Therefore, the clipping lever of being carried out by transcriber that data are carried out the level amplitude limit can be stable.This is recorded in adjacent pattern in the included retaining zone SYa of second frame zone of back 502a for reproduction is favourable.

When using 8/16 modulating system, pattern shown in Figure 28 has the length of 3 bytes.When length and the 3rd synchronizing code sequence PA that has 93 bytes when first frame zone 501a (Figure 24) had the length of 2 bytes, the second retaining zone VFOa (Figure 24) had the length of 88 bytes.

Figure 29 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS, and this example is desirable especially in the 3rd example of the present invention.Pattern shown in Figure 29 is " 000000001000000000000100000000000010000000010 " in the NRZ representation.This pattern has 45 channels bits altogether.This pattern has following characteristic: the pattern that (i) comprises a 9T13T13T9T; And (ii) has a little absolute value to 1 DSV.When the run-length limited code that will have parameter d=2, k=10, m=8, n=15 and r=1 was used for the modulation of data area DATA, the pattern shown in Figure 29 had the length of 3 bytes.

This pattern comprises a pattern and the pattern with (Tmax-2) position with (Tmax+2) position that repeats twice respectively.Therefore, can be with the same in the situation of the pattern shown in Figure 28, shown in Figure 29 pattern and the code distance between the data bit stream of modulation back by remarkable expansion.In addition, pattern shown in Figure 29 is the combination of long record mark/long spacing, but has an average reversal interval, that is, a required edge of being carried out by data PLL of phase bit comparison appears in every Tmax.This equals the maximum frequency that the edge occurs, and therefore in the data PLL of transcriber, does not detect the secondary face sound that the edge produces the time cycle by a segment length.

Since long record mark be ordered as (Tmax-2) (Tmax+2) (Tmax+2) (Tmax-2), so can detect a partial mode with higher reliability.The whole pattern that writes down among detected the 5th synchronizing code sequence PS of method that replacement is mated by an employing fully; Can only detect the first half of this pattern; Promptly (Tmax-2) (Tmax+2) perhaps can only detect the back half the of this pattern, and promptly (Tmax+2) (Tmax-2).Its reason be in addition the first half or back half also can keep enough code distances with all types of patterns that are present in data area DATA and other zones.Therefore, pattern shown in Figure 29 is the high resistance error-detecting, is desirable especially.

Figure 30 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS.For example, when being used to the modulation of data area DATA, the pattern that shows among Figure 30 is especially desirable when the run-length limited code with parameter d=1, k=7, m=2 and n=3 (so-called (1-7) modulating system).

The pattern that shows among Figure 30 is " 001000001000000000100000000010000010 " in the NRZ representation.This pattern has 36 channels bits altogether.This pattern has following characteristic: (i) comprise the pattern of 6T10T10T6T and (ii) have equaling 0 CDS.According to known (1-7) modulating system that is transformed to 8 bit binary data one 12 bit channel code word, the pattern that in Figure 30, shows has the length of 3 bytes.

Since long record mark be ordered as (Tmax-2) (Tmax+2) (Tmax+2) (Tmax-2), so can detect a partial mode with higher reliability.The whole pattern among the 5th synchronizing code sequence PS that is recorded in that the method that replacement is mated by a use fully detects; The first half of detecting pattern only; Promptly (Tmax-2) (Tmax+2), or detecting pattern back half the only, promptly (Tmax+2) (Tmax-2).Its reason be in addition the first half or back half also can keep enough code distances with all types of patterns that are present in data area DATA and other zones.Therefore, pattern shown in Figure 30 is the high resistance error-detecting, is desirable especially.

Figure 31 has shown another example of a pattern (PS pattern) that will be recorded among the 4th retaining zone PS.Pattern shown in Figure 31 is " 0100100000001000000000001000000000001000000010010 " in the NRZ representation.This pattern has 48 channels bits altogether.This pattern has the characteristic of the pattern that comprises a 8T12T12T8T.This pattern is desirable when the run-length limited code that will have parameter d=1, k=9, n/m=1.5 is used for the modulation of data area DATA.The same with pattern shown in Figure 30, this pattern comprise (Tmax-2) (Tmax+2) (Tmax+2) therefore be the high resistance error-detecting (Tmax-2).As the result of NRZI record who carries out 8T record mark or space and insert two 3T spaces or the record mark in 8T record mark or space, the total length of record mark part equals the total length (wherein CDS=0) of space segment.Pattern shown in Figure 31 is in the circumferencial direction symmetry.Therefore, even (wherein, the amplitude of the amplitude of record mark part and space segment is asymmetrical relative to one another asymmetric; When the well known phenomenon that is used for caused reproduced signal deteriorates when the power of CD media identifying recording layer changes) when occurring, pattern shown in Figure 31 also can stably be detected.

Because pattern shown in Figure 31 begins with 3T, so when adjacent pattern in the second retaining zone VFO before the 4th synchronizing code sequence PS is the 3T of (Tmin+1), i.e. repetition, in the continuity better (satisfying run-length restriction easily) of link position.

As stated, first frame zone 501 corresponding to a linking frames zone comprises the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS.Because such structure, though in the length in frame zone because the various fluctuation mistake factors of drive unit when changing, the data that are recorded in second frame regional 502 also can stably be read.Like this, the CD media that has high anti-mistake property can be used minimum possibly the realization by system overhead.Like this, the reliability of transcriber can keep higher.

In example shown in Figure 24, data block 403a is not shown as and comprises a sector.Data block 403a can have one as top with reference to figure 9 described sectors.Also as top described with reference to figure 9, the guiding frame of each sector zone can have the different synchronization code sequence (SY0 and SY) that is recorded in wherein with other frame zones.In this case, the beginning of sector or data block can more easily be detected, and has therefore significantly improved the reliability of information record reproducing.

As stated, in the 3rd example of the present invention, the information mark road 402 of CD media 401 is divided into plurality of data piece 403 (403a), and wherein each is a unit of record and reproduction.Each data block 403 (403a) comprises and is positioned at its first frame that begins to locate zone 501 (501a) and is positioned at first frame zone, 501 (501a) at least one second frame regional 502 afterwards.Each first frame zone, 501 (501a) comprises the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS.The data area DATA that each second frame zone 502 comprises the 3rd retaining zone SY and wherein wants user data.Carry out among the second retaining zone VFO of the beginning of data recording (link)/terminate in first frame zone 501a (linking frames zone).Therefore, even when data are write down with discontinuous mode, this uncontinuity also will be absorbed in the second retaining zone VFO.In the 3rd example of the present invention, the 4th retaining zone PS is positioned at after the second retaining zone VFO of first frame zone, 501 (501a).In the 4th retaining zone PS, the PS pattern (the 5th synchronizing code sequence) at end that is used to discern the VFO pattern is by record.The identification at the end of VFO pattern is equivalent to the identification at the end of the first synchronizing code sequence of in first example, describing (part 2102 among Fig. 1).Because before link with after synchronizing information (data among the first retaining zone PA and the 4th retaining zone PS) be enhanced (reinforce) by this way, data can stably be reproduced always.The PS pattern is used to specify all beginnings (that is, being used to specify the beginning of the first area data that write down) at least one second frame zone (first area) of wherein writing down at least one second frame (close and be called the first area data).The first area is positioned at the back of the 4th retaining zone PS.

In the 3rd example, first frame zone (first area and the 3rd zone) comprises the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS, can also comprise other synchronizing code sequence or data bit streams.

(example 4)

Figure 32 has shown the top view according to the CD-R medium 701 of the 4th example of the present invention.On the record surface of CD media 701, form record mark road 702 in a spiral manner.Record mark road 702 is divided into plurality of data piece 703.In other words, on the record surface of CD media 701, data block 703 is arranged continuously in a circumferential direction and is formed information mark road 702.

Figure 33 has shown the data layout according to the data block 703 of the CD media 701 of the 4th example of the present invention.As shown in Figure 33, first frame zone 801 is positioned at the beginning of each data block 703, and a plurality of second frames zone 802 is positioned at after first frame zone 801.First frame zone 801 has formed a data block 703 with a plurality of second frames zone 802.In Figure 33, a zone that shows on the right side is after the zone that the left side shows.

First frame zone 801 is included in its first retaining zone PA that begins and at thereafter specific purpose data area DASP.Each second frame zone 802 is included in its 3rd retaining zone SY that begins and at thereafter data area DATA.

In the 4th example of the present invention, the first retaining zone PA, the 3rd retaining zone SY and data area DATA have with first example in identical effect, will not be described in detail.The 4th example is different from first example aspect following; Be that specific purpose data area DASP is provided with first frame that begins the to locate zone 801a (being included in first frame zone of the vectoring information piece 703a of ECC piece) that is arranged in the ECC piece, rather than be arranged in the second retaining zone VFO in first frame zone 201.First frame zone 801 of each data block except the vectoring information piece of ECC piece can have the identical structure with first frame zone 801a.

In the 4th example of the present invention, as shown in Figure 33, the ECC piece 804 that forms an error check code comprises four continuous data block 703.An error check code only solves and is included in four data area DATA in the continuous data block 703, and does not solve specific purpose data area DASP.

In the DASP of specific purpose data area, write down comprise have be included in data area DATA in the data bit stream of specific purpose data of the different purposes of user data.Be recorded in data among the DASP of specific purpose data area can be treated for the data independence that is recorded among the DATA of data area.What therefore, be recorded in data among the DASP of specific purpose data area reads that the data that do not require among the data area DATA that is recorded in the same data block 703 are read or error recovery etc.

At least one specific purpose data area DASP is provided in each data block.A plurality of specific purposes data area DASP is provided in each ECC piece.Therefore, can in the DASP of specific purpose data area, write down the data (specific purpose data) of expression corresponding to the information of each data block or ECC piece.

For example, specific purpose data area DASP can have following purposes.

(purposes 1) is recorded in the data attribute of the user data among the data area DATA of each data block.

(purposes 2) relevant to be used for record data or to write down the information of method of the characteristic of each data block.

Purposes 1 is used on the basis of data block one by one, writing down the attribute of the user data that is write down.Irrespectively obtain this attribute with the user data among the data area DATA that is included in each data block.Therefore, under the situation that does not read user data, obtained this attribute.Therefore, for example when the information about copyright protection is comprised as attribute, can adopt each data block to come to carry out control for copyright protection as least unit.

Purposes 2 is to be used on the basis of data block one by one record about being used for record data or writing down the information of method of the characteristic of each data block.Irrespectively obtain such information with the user data among the data area DATA that is included in each data block.Therefore, under the situation that does not read user data, obtained this information.Therefore, in the time of in being recorded in data each data block or other data blocks, can use about being used for record data or writing down the information of method of the characteristic of each data block.

An ECC piece comprises a plurality of data blocks.Data are rewritten on the basis of ECC piece one by one.First frame zone 801a corresponding to the beginning of each ECC piece is used as the linking frames zone.Because such structure, a plurality of specific purposes data area DASP can be arranged in an ECC piece.It is effective being recorded in identical specific purpose data among all specific purpose data area DASP that are included in the ECC piece.By this way; Even when the specific purpose data among the specific purpose data area DASP who is recorded in first frame zone 801a can not be read and lose because of rewriting, can the identical specific purpose data of reading and recording in the DATA of other specific purpose data areas.Like this, the specific purpose data can be reproduced safely.

In the example shown in Figure 34 A, first frame zone 801a comprises the first retaining zone PA and the second retaining zone VFO.In the example shown in Figure 34 B, first frame zone 801a comprises the first retaining zone PA, the second retaining zone VFO and the 3rd retaining zone PS.

In these examples, the second retaining zone VFO only provides in (corresponding to linking frames zone) the guiding frame zone that begins to locate that is arranged in each ECC piece.Like this, be used in stable recording and be enhanced (that is the synchronous pattern when, record is used to guarantee to reproduce) at the needed synchronous mode of the reproduction of the data on the CD media 701.Specific purpose data area DASP is located in first frame that begins the to locate zone 801 of each data block the data block that begins to locate of each ECC piece.Therefore, even at the beginning/final position of data recording, data also can stably be read.Moreover the specific purpose data can irrespectively be write down with the user data in each ECC piece or reproduced.

In the example shown in Figure 34 A and the 34B, comprise the feasible synchronous mode that strengthens of the second retaining zone VFO in the frame zone that begins to locate of each ECC piece.The present invention is not limited to this.When data are recorded in a plurality of ECC pieces with the form of a series of data recording, second and ECC piece subsequently in each guiding frame zone can have specific purpose data area DASP, rather than have the frame zone of the synchronous mode that is enhanced.

In the 4th example; Described the situation that first frame zone (first area and the 3rd zone) comprises the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS, and first frame zone (first area and the 3rd zone) comprises the situation of the first retaining zone PA and specific purpose data area DASP.The present invention is not limited to this.For example, when comprising specific purpose data area DASP or other synchronizing code sequence or data bit stream, the first frame zone can comprise the 4th retaining zone PS.

(example 5)

Figure 35 has shown the top view according to the CD-R medium 1001 of the 5th example of the present invention.On the record surface of CD media 1001, record mark road 1002 forms in a spiral manner.Record mark road 1002 is divided into plurality of data piece 1003a and 1003b.Information mark road 1002 is divided into inside part, center section and Outboard Sections.Inside part and Outboard Sections all are reproduction regions 1004 that is specifically designed to reproduction.Center section is a rewritable area 1005.Each the data block 1003a that is included in the reproduction regions 1004 has the pit that is recorded in wherein.For example, the convexity and the depressed portions on service recorder surface assign to form pit.Among each data block 1003b in being included in rewritable area 1005, data will be come record through pen recorder.

Figure 36 has shown the data layout of the data block 1003a in the reproduction regions 1004 that is included in the CD media 1001 in the 5th example of the present invention.As shown in Figure 36, each data block 1003a is included in its first frame that begins to locate zone 1101 and is positioned at a plurality of second frames zone 1102 afterwards, first frame zone 1101.First frame zone 1101 forms a data block 1003a with a plurality of second frames zone 1102.In Figure 36, the zone that shows on the right side is located at the back in the zone of left side demonstration.

First frame zone 1101 is included in its first retaining zone PA that begins to locate and specific purpose data area DASP subsequently.Each second frame zone 1102 is included in its 3rd retaining zone SY that begins to locate and data area DATA subsequently.The first retaining zone PA, the 3rd retaining zone SY and data area DATA have with first example in identical functions, will not be described in detail.Specific purpose data area DASP have with the 4th example in identical functions, will not be described in detail.

Figure 37 has shown the data layout of the data block 1003b in the rewritable area 1005 that is included in the CD media 1001 in the 5th example of the present invention.As shown in Figure 37, each data block 1003b has the structure identical with data block 1003a.Each data block 1003b is included in its first frame that begins to locate zone 1201 and is positioned at a plurality of second frames zone 1202 afterwards, first frame zone 1201.First frame zone 1201 forms a data block 1003b with a plurality of second frames zone 1202.In Figure 37, the zone that shows on the right side is located at the back in the zone of left side demonstration.

First frame zone 1201 is included in its first retaining zone PA that begins to locate, the second retaining zone VFO subsequently and the 4th retaining zone PS.Second frame zone 1202 is included in its 3rd retaining zone SY that begins to locate and data area DATA after the 3rd retaining zone SY.

The first retaining zone PA, the second retaining zone VFO, data area DATA and the 3rd retaining zone SY have with first example in identical functions, will not be described in detail.The 4th retaining zone PS have with second example in identical functions, will not be described in detail.The 4th retaining zone PS can randomly be provided.

Shown in Figure 36 and 37, a reproduction regions 1004 all is divided into a plurality of data blocks with rewritable area 1005 and has similar each other frame structure.Therefore; Although two zones have with different physical forms records (promptly; Utilize convexity and the recessed part record of record surface; Or the phase transformation that utilizes recording layer is write down) data, the reproduction step (the level amplitude limit of data, PLL, demodulation etc.) after having obtained to reproduce RF can be carried out with mode much at one in a reproduction regions 1004 and rewritable area 1005 at least.Therefore, transcriber need not comprise two dissimilar reproducing circuits, i.e. a reproducing circuit and a reproducing circuit that is used for rewritable area that is used for reproduction regions.Like this, can simplify the structure of reproducing circuit, reduce the cost of transcriber like this.

The data block 1003a that is included in the reproduction regions 1004 differs from one another on the inner structure in its first frame that begins to locate zone 1101 and 1201 with the data block 1003b that is included in the rewritable area 1005.

First frame zone 1201 of vectoring information piece that is included in each the ECC piece in the rewritable area 1005 is corresponding to the linking frames zone of the beginning/final position that comprises the additional data record.Like what in first example, describe in detail, when data at the beginning/final position (linking frames zone) of additional data record when being write down with discontinuous mode, data block subsequently needs correctly to be reproduced.For this purpose, first frame zone 1201 comprises the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS so that strengthen synchronizing information.In addition, beginning and stopping among the data recording second retaining zone VFO that can user data of no use therein will be write down.

First frame zone 1101 in the reproduction regions 1004 will be recorded in system overhead zone wherein corresponding to user data of no use.In this zone, because data are not rewritten, so the data uncontinuity does not occur.Therefore, in this zone, can irrespectively reproduce with user data, representative can be by record corresponding to the data (specific purpose data) of the information of each data block.For this purpose, specific purpose data area DASP provides behind the first retaining zone PA, so can be by record with the information that user data irrespectively reproduces.

In the example shown in Figure 35, CD media 1001 comprises a reproduction regions 1004 and rewritable area 1005.CD media 1001 can only have a reproduction regions 1004.

As stated, in the CD media 1001 in the 5th example of the present invention, the data block that is included in the reproduction regions 1004 has identical frame structure with data block in being included in rewritable area 1005.This helps to reduce the scale of the reproducing circuit of drive unit.

In the CD media 1001 in the 5th example of the present invention, in first frame in each data block in a reproduction regions 1004 zone 1101 or the data block in rewritable area 1005 is not that first frame zone 1201 of link area can comprise the specific purpose data area DASP that substitutes the zone that is used to strengthen synchronism.Like this, can with user data irrespectively information processed can or be reproduced as the specific purpose data by record.For example, intrinsic information of information, each drive unit of relevant copyright protection or the information that supplies to use in the future can or be reproduced by record.This helps the expansion in the use of CD media and record and transcriber widely.

In the 5th example, described first frame zone (first area and the 3rd zone) and comprised the situation of the first retaining zone PA, the second retaining zone VFO and the 4th retaining zone PS and the situation that first frame zone (first area and the 3rd zone) comprises the first retaining zone PA and specific purpose data area DASP.The present invention is not limited to this.For example, when comprising specific purpose data area DASP or other synchronizing code sequences or data bit stream, the first frame zone can comprise the 4th retaining zone PS.

(example 6)

Figure 38 has shown the structure according to the information record carrier (pen recorder) 1710 of the 6th example of the present invention.For example, information record carrier 1710 is recorded in information on CD media 101 (Fig. 1), CD media 3101 (Fig. 8), CD media 401 (Figure 23) or the CD media 1001 (Figure 35).In the following description, information record carrier 1710 is recorded in information on the CD media of in second example, describing in detail 3101.

Record and reproduce shaven head 1701 data are recorded on the CD media 3101, or read the data that are recorded in advance on the CD media 3101 or by the data of a device recording on CD media 3101.

For example; Record and reproduce shaven head 1701 comprise be used for the light source of tracer signal (for example, semiconductor laser) optically, be used for record data WTDT as one man driving light source driving circuit, be used on the record surface of CD media 3101, assembling the light that light source sends or be used to detect by the light of CD media 3101 reflections and to be read as light the optical system of a signal and to be used for a signal reproduction that reads be the photoelectric commutator of electric signal RF.

Signal level amplitude limit part 1702 is amplified by record and is reproduced signal RF that shaven head 1701 reads and come signal RF is carried out the level amplitude limit through necessary processing.

Mode detection uses the level sliced data RDDT that is obtained by signal level amplitude limit part 1702 to detect the synchronizing code sequence consistent with the data layout of CD media 3101 with sync section 1703, and discerns the positional information of the data that read through record and reproduction shaven head 1701 in real time.The detailed built-in function of mode detection and sync section 1703 will be described later.

The operation of timing controlled part 1704 control ECC coded portions 1705 and modulating part 1706 makes and must data recorded be recorded on the assigned position of CD media 3 101 based on the positional information ADR that obtains through the Real time identification of being carried out by mode detection and sync section 1703.Except the control operation that is used to read, the search operation that timing controlled part 1704 also utilizes positional information ADR execution to be used for moving recording and reproduction shaven head 1701 makes signal on the assigned position of CD media 3101, to be read or record.

ECC coded portion 1705 adds redundant data, for example error check code etc. from the user data that will be write down of the outside input of information record carrier 1710 to, and is encoded to the form of regulation to this redundant data.ECC coded portion 1705 also outputs to modulating part 1706 to the data ECCDT after encoding based on the recording operation timing signal WTGT from timing controlled part 1704.ECC coded portion 1705 usefulness act on the receiving unit of reception from the user data of the outside of information record carrier 1710.

Modulating part 1706 receives by ECC coded portion 1705 coded data ECCDT, uses the modulating system modulating data ECCDT of regulation, and outputs to the data that obtain record and reproduce shaven head 1701 as record data WTDT.

The cooperation and unite of information record carrier 1710 in the 6th example of the present invention through said units is recorded in information on the CD media 3101.For other record data (link) after being positioned at the data block that has write down data, need carry out accurate record to data recorded.

Information record carrier 1710 should correctly detect by the position of data recorded and with its accurately synchronous operation be very important.For this purpose; Use is by record and reproduce shaven head 1701 and the data of the level amplitude limit of level amplitude limit part 1702 reproductions; The various synchronizing code sequences that detection is described in detail in second example are to obtain the operation of correct positional information, and promptly the operation of mode detection and sync section 1703 is very important.For example, positional information ADR comprises sector position SPt, frame position FPt and byte location BPt.

Figure 39 has shown the example of the inner structure of mode detection and sync section 1703, and it comprises like lower unit.

SY0 mode detection part 1901 detects the SY0 pattern and exports SY0 detection signal SY0DET from the data RDDT of level amplitude limit.SY0 mode detection part 1901 is used as first test section that is used to detect SY0 pattern (the second synchronizing code sequence).

PA mode detection part 1902 detects the PA pattern and exports PA detection signal PADET from the data RDDT of level amplitude limit.PA mode detection part 1902 is used as the 3rd test section that is used to detect PA pattern (the 3rd synchronizing code sequence).

SY mode detection part 1903 detects the SY pattern and exports SY detection signal SYDET from the data RDDT of level amplitude limit.

1 frame timer 1904 is from the byte location signal BPt and the frame-synchronizing impulse FRMPLS that begin to discern byte location and the recognition result of output reflection in real time in each frame zone.For example, 1 frame timer 1904 comprise the byte number (93 byte) that is used for calculating in a frame zone or channels bits number (being 1488 channels bits in the situation of 8/16 modulating system) the first segment count (not shown) be used to the byte location detection window that the synchronizing code sequence produces detection window and produce the part (not shown).1 frame timer 1904 receives detection signal SY0DET, PADET and SYDET and produces part at built-in (built-in) byte location detection window by the synchronous displacement that is used to prevent produced by the error-detecting of pattern from mode detection part 1901 to 1903 respectively suitably adjusts built-in first segment count in the control detection window.The count value that first segment count obtains (byte location that begins to locate in expression frame zone) is outputted as byte location signal BPt, and output once at the byte location of stipulating (approximately per 93 bytes) in a frame for frame-synchronizing impulse FRMPLS.

The position that 1 frame timer 1904 is predicted the synchronizing code sequence basically based on the mode detection result of adjacent synchronizing code sequence in front, and in expection will detect time cycle of synchronizing code sequence, open detection window.When the detection signal to the synchronizing code sequence was received in this time cycle, 1 frame timer 1904 judged that correct synchronizing code sequence is to be detected and be predisposed to a setting to the count value BPt of first segment count.Prevalue is not to be necessary for 0, judges but consider to detect needed time delay.

The number of the byte in each frame equates in these frames.Therefore, the byte location detection window produces part control detection window, so that open the official hour cycle at the byte cycle of each regulation (particularly, about per 93 bytes, this is the quantity of byte in the frame zone).The width of detection window can be considered all about by record with reproduce the fluctuating factor that signal that shaven head 1701 carries out reads and (for example judge; By the living jittering component of rotation wave movable property, the deflection of CD media 3101 etc., or the data uncontinuity in the linking frames zone).

Frame position in frame counter 1905 each sector of identification, and the frame position signal FRt and the sector synchronizing pulse SCTPLS of the recognition result of output reflection in real time.For example; Frame counter 1905 comprises the second segment count (not shown) of frame number (26 to the 27 frame) counting that is used for a sector and is used to the first synchronizing code sequence SY0 and the frame position prediction window generation part (not shown) of the 3rd synchronizing code sequence PA generation prediction window.Frame counter 1905 is from 1 frame timer, 1904 received frame synchronizing pulse FRMPLS and be added to built-in second segment count.Frame counter 1905 also partly receives detection signal SY0DET and PDDET from each mode detection, and is adjusting built-in second segment count by being used to prevent that built-in frame position prediction window that error-detecting owing to pattern produces synchronous displacement from producing when part is suitably controlled prediction window.

The frame position prediction window produces part and considers that the order of these patterns appearance is each SY0 pattern and prediction window of PA mode producing.Like what described in detail in second example, each synchronizing code sequence is only to be detected with order specified.For example, the second synchronizing code sequence SY0 in a sector to be detected once (in 26 frame zones once; Or in 27 frame zones that comprise first frame zone 201 (Fig. 9) once).Utilize this point, the frame position prediction window produces part can produce a prediction window for each synchronizing code sequence.

When output detection signal SY0DET when the prediction window for the SY0 pattern is to open, frame counter 1905 is predisposed to 0 to the count value FPt of second segment count.When output detection signal PADET when the prediction window for the PA pattern is to open, frame counter 1905 is predisposed to 26 to the count value FPt of second segment count.Only if detection signal is exported, the count value FPt of second segment count is increased 1 when each frame-synchronizing impulse FRMPLS exports.By this way, the count value of built-in second segment count is outputted as frame position signal FPt, sector synchronizing pulse SCTPLS in a sector on the frame position of regulation (per 26 to 27 frame zones) by being exported once.

Sector position in sector counter 1906 each data block of identification, and the sector position signal SPt of the recognition result of output reflection in real time.For example, sector counter 1906 comprises the 3rd segment count (not shown) of the number of sectors (8 sectors) that is used for counting a data block and is used to the sector position prediction window generation part (not shown) that the 3rd synchronizing code sequence PA produces prediction window.Sector counter 1906 is from frame counter 1905 reception sector synchronizing pulse SCTPLS and be added to (count up) built-in the 3rd segment count.Sector counter 1906 also receives detection signal PADET from PA mode detection part 1902, and is adjusting built-in three segment count because the built-in sector position prediction window of the synchronous displacement that the error-detecting of pattern produces produces when part is suitably controlled prediction window by being used to prevent.

The sector position prediction window produces the order that part considers that the PA pattern occurs, and is PA mode producing prediction window.Like what described in detail in second example, the 3rd synchronizing code sequence PA only occurs once in 8 sectors.Sector prediction window generation part can be utilized this to put and produce prediction window.

When output detection signal PADET when the prediction window for the PA pattern is to open, sector counter 1906 is predisposed to 0 to the count value SPt of the 3rd segment count.Only if detection signal PADET is exported, the count value SPt of the 3rd segment count is increased 1 when each sector synchronizing pulse SCTPLS exports.By this way, the count value of built-in third part is outputted as sector position signal SPt.

Mode detection and sync section 1703 with above-mentioned inner structure uses the data RDDT of the level amplitude limit that reads from CD media 3101 to detect and is included in each the synchronizing code sequence (pattern) in the data layout of describing in detail second example.Like this, the positional information of reading of data, be that sector position SPt, frame position FPt and byte location BPt are obtained in real time.Use is from such positional information of mode detection and sync section 1703 outputs, and timing controlled part 1704 (Figure 38) can produce and export to oligodactyly and show that ECC coded portion 1705 comes the recording operation timing signal WTGT of executive logging operation.

The inner structure that in Figure 39, shows only is an example.The inner structure of mode detection and sync section 1703 is not limited to this.In the example that in Figure 39, shows, SY0 pattern, SY pattern and PA pattern are used as synchronizing code sequence to be detected.The PS pattern of in the 3rd example, describing can be used in addition.In this case, the quantity of pattern to be detected has increased, so net synchronization capability and positional information recognition performance have improved.This will describe with reference to Figure 40 below.

All positional informations in the CD media 3101 can not only be discerned with four types synchronizing code sequence.With four types synchronizing code sequence, the sector position in each data block, frame position and byte location can be identified, but the position of the current data block that in CD media, reads can not be identified.In order to discern the position of the current data block that reads, need id information.For example, data presented location recognition region D ataID is used to this purpose in Figure 14.

Figure 40 has shown another example of the inner structure of mode detection and sync section 1703, and it comprises following unit.The inner structure that in Figure 40, shows is further to comprise PS mode detection part 2001 with the difference of the inner structure that in Figure 39, shows.Have corresponding label with top with reference to described same unit of Figure 39 and the identical inner signal that between the unit, transmits, will not be described in detail.

Like what describe in the 3rd example, from the purpose of the reliability that improves the beginning that detects each data block, the PS pattern is positioned at the end as first frame zone 501a of link position.When data block comprised the sector, first frame zone 501a needed adjacent before being located at the second frame zone that begins to locate of sector.Therefore, the PS pattern also is used to realize improving the purpose of the reliability that begins to locate that detects each sector.Because the PS pattern is positioned at the end of first frame zone 501a, the PS pattern also is used to realize improving the purpose of the reliability that begins to locate that detects each frame zone.PS mode detection part 2001 is used as the 4th test section that is used to detect PS pattern (the 5th synchronizing code sequence).

For above-mentioned reason, be imported into 1 frame timer 2002, frame counter 2003 and sector counter 2004 as the output PSDET of PS mode detection result's PS mode detection part 2001, and in each counter, be used to location recognition.

Figure 41 has shown the data layout of CD media 3101 and the relation between the positional information.In Figure 41, the first frame zone is represented by " LF ".The first frame zone is represented as has the 4th retaining zone PS that in the 3rd example, describes.Figure 41 has shown the example value of the positional information under the state that is established synchronously, i.e. sector position signal SPt, frame position signal FPt and byte location signal BPt.

Sector position signal SPt sequentially gets 0 to 7 value from the boot sector of each data block.In being in the first frame area L F that begins to locate of data block, sector position signal SPt is 0.

Frame position signal FPt sequentially gets 0 to 25 value from the boot sector of each sector, although the value of frame position signal FPt is 26 in the first frame area L F.In all sectors in being included in each data block, the value of the frame position signal FPt in each frame zone (F0 is to F25) is in 0 to 25 the scope.

Byte location signal BPt sequentially gets 0 to 92 value from the boot sector in each frame zone.In all frame zones in being included in each sector, it is 0 that the value of byte location signal BPt is located in regional the beginning of frame.When through any one of SY0 pattern, SY pattern or PA pattern, the value of byte location signal BPt is 0 or 1.

Figure 41 has also shown the example waveform of the recording operation timing signal WTGT that is produced by timing controlled part 1704 use location information (position signalling SPt, FPt and BPt).Be used at an ECC piece, the i.e. record data of four continuous data block at the recording operation timing signal WTGT shown in Figure 41.When being in the HIGH level, recording operation timing signal WTGT representes recording operation.At this time, ECC coded portion 1705 outputs to modulating part 1706 to ECC coded data ECCDT.

Additional data are recorded in the first frame zone as the linking frames zone and carry out.In other words, the beginning/termination of data recording is always carried out in the second retaining zone VFO in first frame zone.Therefore; From the S byte that begins to locate to count of the first frame area L F that begins to locate of the data block that begins that is in the ECC piece (in example shown in Figure 41; S=8), recording operation timing signal WTGT changes into HIGH (height) level (beginning of record) from LOW (low) level.(in example shown in Figure 41, E=11), recording operation timing signal WTGT changes into LOW level (termination of record) from the HIGH level from the E byte that begins to locate to count of the first frame area L F that begins that is in next ECC piece.

When correct when being performed synchronously, in first frame area L F, SPt=0 and FPt=26.Therefore, recording operation timing signal WTGT preferably is controlled as and makes { SPt=0, FPt=26 in the current ECC piece; Be in the HIGH level during BPt=S} (when data are write down); And { SPt=0, FPt=26 are in the LOW level during BPt=E} in next ECC piece.

Like this, mode detection and sync section 1703 are used as the test section that is used to detect PA pattern (the 3rd synchronizing code sequence).Timing controlled part 1704 is used as and is used for beginning to confirm record start position certain portions really based on PA pattern to be detected.As top described with reference to Fig. 2, timing controlled part 1704 can be confirmed record start position at random when each record is performed.

ECC coded portion 1705, modulating part 1706 and record and reproduction shaven head 1701 are together as the recording section that is used for the executive logging process.As top described with reference to Fig. 2; Recording process comprises record start-of-record VFO part 2102 (being used for stably reproducing the first appended synchronization code sequence of data) step (Fig. 2); Write down the step of second frame, the step of record PA pattern and processing record completion VFO part 2101 (being used for stably reproducing the 4th appended synchronization code sequence of data) step (Fig. 2) in the VFO pattern.Have in the situation of the data layout of describing in the 3rd example at CD media, this recording processing comprises the step of record PS pattern.

During recording operation, each synchronizing code sequence (or being controlled to be not to be detected) not to be detected.Therefore, (SPt, FPt BPt) and in continuing insert not preset each position signalling.

As stated, information record carrier 1710 comprises and ought be additionally be used for detecting from data recorded in advance the mode detection and the sync section 1703 of SY0 pattern and PA pattern to data recording on the information that is recorded in advance on the CD media (link) or overwriting data the time.Information record carrier 1710 comprises that also the result who is used to use mode detection confirms to be used to begin the timing controlled part 1704 of timing of the record of additional data.Because such structure, at a high speed with stably detect first data unit (sector) that data are recorded in advance or second data unit (data block) begin locate in, information can be by addition record or rewriting.Like this, information record carrier has obtained the positional precision of the record of improvement greatly, has obtained the reliability that strengthens like this.

Therefore, when being applied to high capacity, high-speed data storage device, video disc record device and multimedia recording device, information record carrier 1710 provides significant effect.

(example 7)

Figure 42 has shown the structure according to the information reproduction apparatus (transcriber) 1810 of the 7th example of the present invention.For example, information reproduction apparatus 1810 reproduces the information on CD media 101 (Fig. 1), CD media 3101 (Fig. 8), CD media 401 (Figure 23) or the CD media 1001 (Figure 35) that is recorded in.In the following description, information reproduction apparatus 1810 reproduces the information on the CD media of describing in detail in second example 3101 that is recorded in.In Figure 42, signal level amplitude limit part 1702 and mode detection and sync section 1703 with top with reference to Figure 38 describe identical, will not be described in detail.

Reproduce the data of bare headed 1801 reading and recording on CD media 3101.For example; Reproducing shaven head 1801 comprises the light source (for example, semiconductor laser) that is used to use up irradiation CD media 3101, is used to detect by the light of the record surface reflection of CD media 3101 and to be read as this light the optical system of a signal and to be used for a signal reproduction that reads be the photoelectric commutator of electric signal RF.

PLL part 1802 uses the data RDDT of the level amplitude limit that is partly obtained by the signal level amplitude limit to reproduce the position phase locked bit synchronization clock RDCLK with the edge of the data RDDT of level amplitude limit.

Data DEMDT after the data RDDT of demodulation part 1804 use level amplitude limits and bit synchronization clock RDCLK come demodulation reproduction data and export demodulation.

Timing controlled part 1803 outputs to the demodulation part 1804 feasible data that are recorded in the assigned position of CD media 3101 to demodulation operation timing signal RDGT and can reproduce based on the positional information ADR that the Real time identification of being carried out by mode detection and sync section 1703 obtains.When being the HIGH level, demodulation operation timing signal RDGT representes to reproduce the demodulation operation of data.Data DEMDT demodulation is only just exported in demodulation part 1804 when RDGT is the HIGH level after.

Timing controlled part 1803 outputs to signal level amplitude limit part 1702 to the level amplitude limit of the pattern that is used for control level amplitude limit control timing signal SLGT.When being the HIGH level, level amplitude limit control timing signal SLGT representes common level amplitude limit operator scheme.When SLGT was the HIGH level, signal level amplitude limit part 1702 was used reproducing signal RF control level clipping lever.When SLGT was the LOW level, signal level amplitude limit part 1702 remained on the value when SLGT is the HIGH level to the level clipping lever, does not carry out control.

The PLL control timing signal PLLGT that timing controlled part 1803 will be used to control the pattern of PLL phase bit comparison outputs to PLL part 1802.When being the HIGH level, PLL control timing signal PLLGT representes the PLL follow the mode used always.When the PLLGT signal was in the HIGH level, PLL part 1802 was controlled to be built-in PLL the data RDDT that is phase-locked to the level amplitude limit.When the PLLGT signal was in the LOW level, PLL part 1802 kept this PLL and does not carry out control.

Except the control operation that is used to reproduce, timing controlled part 1803 is also carried out and is used for use location information A DR and moves the search operation that reproduces shaven head 1801 and make signal to be read in the position of the regulation of CD media 3101.

ECC decoded portion 1805 is used error check code to proofread and correct the data that retrieve when mistake is detected as required, and is output as user data to result's data from the data that demodulated data DEMDT retrieval needs.

Reproduce shaven head 1801, signal level amplitude limit part 1702, PLL part 1802, demodulation part 1804 and ECC decoded portion 1805 together as being used for reproducing the various synchronizing signals of the retaining zone that is recorded in CD media 3101 and being recorded in the reproducing part of at least a portion of the user data among the DATA of data area.

Information reproduction apparatus 1810 through said units cooperation and unite the information that is recorded on the CD media 3101 of reproducing.Information reproduction apparatus 1810 should correctly detect the position that is recorded in the data on the CD media 3101 with data layout of describing in second example and operate with its precise synchronization ground is very important.For this purpose; The various synchronizing code sequences that the level sliced data detection that use is reproduced by reproduction shaven head 1801 and level amplitude limit part 1702 is described in detail in second example are to obtain the operation of correct positional information; Being the operation of mode detection and sync section 1703, is very important.The operation of mode detection and sync section 1703 is described in detail with reference to Figure 39 and 40 in the above, will be not described in detail.

Figure 43 has shown and has been used to reproduce the operation waveform that is recorded in corresponding to the various timing signals of the first frame area L F of linking frames and near the data it.Level amplitude limit control timing signal SLGT becomes the LOW level at the BR1 byte place that locates to count since the first frame area L F from the HIGH level, becomes the HIGH level at the BR2 byte place that locates to count since the first frame area L F from the LOW level.As level amplitude limit control timing signal SLGT; PLL control timing signal PLLGT becomes the LOW level at the BR1 byte place that locates to count since the first frame area L F from the HIGH level, becomes the HIGH level at the BR3 byte place that locates to count since the first frame area L F from the LOW level.

Based on adjacent data block in front whether, control demodulation operation timing signal RDGT in every way by demodulation.When adjacent data block is in front separated timing; Demodulation operation timing signal RDGT is high level (shown in a dotted line among Figure 43); But, in the first frame area L F, change into the LOW level from the HIGH level or before since the BR1 byte of locating to count of the first frame area L F.Then, since the BR4 byte of locating to count of the first frame area L F or afterwards, demodulation operation timing signal RDGT becomes the HIGH level from the LOW level.When adjacent data block is not in front separated timing, demodulation operation timing signal RDGT the first frame area L F to begin the place be LOW level (shown in solid line among Figure 43).

Here; The final position of hypothetical record is E the byte of locating to count since the first frame area L F; The beginning position of record is that (S and E are less than the rational number of 93 bytes and satisfy that S≤E), the length of the 3rd synchronizing code sequence PA is 2 bytes for S the byte of locating to count since the first frame area L F.The value of confirming BR1, BR2, BR3 and BR4 is to satisfy 2≤BR1＜S, E＜BR2＜BR3＜BR4＜93.

In other words; Through level amplitude limit control timing signal SLGT at least S the byte that begins to locate to count from E the byte of locating to count of the first frame area L F to the first frame area L F be set to the LOW level; The level clipping lever is held, so that in the part that the quality of reproducing signal RF possibly differ from, do not follow reproducing signal RF.As level amplitude limit control timing signal SLGT, PLL control timing signal PLLGT is the LOW level in the part of SLGT=LOW at least.But PLL control timing signal PLLGT is set to respect to the reformed point of level amplitude limit control timing signal SLGT in the back from the point that the LOW level becomes the HIGH level.Like this; In the quality of reproducing signal RF might relatively poor part, do not having to keep level amplitude limit control timing signal SLGT under the situation of PLL control; And, after having started the operation of following the level amplitude limit, restart the bit comparison mutually between PLL and the level sliced data RDDT.The part that demodulation operation timing signal RDGT is set at least PLLGT=LOW is at the LOW level.But demodulation operation timing signal RDGT is set to respect to the reformed point of PLL control timing signal PLLGT in the back from the point that the LOW level becomes the HIGH level.Like this, demodulation operation not the quality of reproducing signal RF maybe be relatively poor part in be performed.

Through various timing signals are set as described above; Even when near the data being recorded in the first frame area L F (link area) and its are reproduced, the deterioration in the uncontinuity of the data that prevent to produce through link or the recording layer that produces through overwriting data repeatedly influences the reproduction processes system of information reproduction apparatus.Like this, data can correctly be reproduced.

The specific purpose data that transcriber 1810 reproduces in the reproduction regions that is recorded in CD media 1001 (Figure 35) are following.The PA pattern (replenishing the third pattern) that is recorded among the first retaining zone PA among 1101 (Figure 36) of first frame zone is detected by PA mode detection part 1902 (test section).Detect in response to this, the specific purpose data (specific purpose data) that are recorded among the DASP of specific purpose data area are reproduced.

Like this; Transcriber 1810 comprises and is used to detect the mode detection and the sync section of second synchronizing code sequence (SY0 pattern) and the 3rd synchronizing code sequence (PA pattern) and is used to use the mode detection result to confirm to be used for the timing controlled part and the demodulation part of timing of the read operation of start information.Because such structure, transcriber 1810 can at a high speed with the beginning that stably detects first data cell (sector) or second data cell (data block) in information reproduction.Like this, information reproduction apparatus 1810 can be at a high speed with stably reproduce data.

Timing controlled part 1704 is used as together with signal level clipped signal 1702 and is used in the specified period of the first frame area L F, using the mode detection result to switch the level limiter mode switching part of the level limiter mode of reproducing signal.Timing controlled part 1704 is used as the clock reproduction mode switching part that is used for reproducing with reproducing signal bit synchronization ground clock together with PLL part 1802.Because such structure, though when data be discontinuous or the quality of reproducing signal descends in link position, be recorded in link position and also can stably reproduce with near its information.As a result, information reproduction apparatus 1810 has the reliability of the information regeneration of remarkable enhancing.

Therefore, when being applied to high capacity, high-speed data memory storage, optic disk register and multimedia recording device, this information reproduction apparatus 1810 provides significant effect.

In above-mentioned seven examples, according to the present invention, CD media is used as information recording carrier.The present invention is not limited to CD media.For example, the present invention can be used for for example hard disk of magnetic recording media.Above-mentioned example does not limit the present invention.The present invention is only limited claim.

Be not limited to according to recording medium of the present invention and have in advance the medium of data recorded or the medium of unwritten data.Data can be recorded in the whole information mark road of recording medium in advance, and perhaps recording medium can unwritten data.Recording medium has a zone of having write down the zone of data in advance and not had record data.

Commercial Application

In foundation recording medium of the present invention, posting field comprises first area and second area.This zone comprises a frame zone.In the frame zone, write down at least a portion of the second synchronizing code sequence and data.Second area comprises the zone that wherein will write down the 3rd synchronizing code sequence and the 4th synchronizing code sequence.On such recording medium, can carry out additional data record (link) in the position to start with the position in the 4th synchronizing code sequence.Like this, in having write down the frame zone of data, do not carry out the additional data record.Therefore, even also can stably carry out data recording and reproduction at the starting position and the final position of data recording.

Claims

1. recording method, this recording method comprises:

Write down the step of a plurality of posting fields, each posting field comprises a plurality of sectors and one first frame zone;

Write down the step of this sector, this sector comprises N second frame zone, and wherein N is more than or equal to 3;

Write down the step in each frame zone in said N the second frame zone, wherein each frame zone comprises the data area that wherein will write down the zone of synchronizing code sequence and wherein will write down at least a portion of the user data that will in recording medium, write down;

Write down the step in said first frame zone;

The synchronizing code sequence that wherein will be recorded in the second frame zone that begins to locate that is arranged in said sector and the synchronizing code sequence that will be recorded in arbitrary second frame zone except the second frame zone that begins to locate that is arranged in said sector, said sector differ with Non Return to Zero Inverted NRZI represent more than or equal to 2 code distance, and

First retaining zone in the said first frame zone writes down the pattern that does not occur in the data bit stream in the said data area.

2. a reproduction is recorded in the reproducting method of the information on the recording medium that comprises a plurality of posting fields, wherein:

Each posting field comprises a plurality of sectors and one first frame zone,

This sector comprises N second frame zone, and wherein N is more than or equal to 3;

In the individual second frame zone of said N each comprises the zone that will write down the synchronizing code sequence therein and the data area that wherein will write down at least a portion of the user data that will in recording medium, write down,

The synchronizing code sequence that is recorded in the second frame zone that begins to locate that is arranged in said sector and the synchronizing code sequence that will be recorded in arbitrary second frame zone except the second frame zone that begins to locate that is arranged in said sector, said sector differ with Non Return to Zero Inverted NRZI represent more than or equal to 2 code distance

First retaining zone in the said first frame zone writes down the pattern that does not occur in the data bit stream in the said data area;

Said reproducting method comprises:

Reproduce the synchronizing code sequence that has been recorded in the second frame zone that begins to locate that is arranged in said sector;

Reproduce said data.