CN1139261A - Method for recording data on recordable optical disk - Google Patents
Method for recording data on recordable optical disk Download PDFInfo
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- CN1139261A CN1139261A CN95115920A CN95115920A CN1139261A CN 1139261 A CN1139261 A CN 1139261A CN 95115920 A CN95115920 A CN 95115920A CN 95115920 A CN95115920 A CN 95115920A CN 1139261 A CN1139261 A CN 1139261A
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- data
- input data
- recorded
- recorded area
- impact damper
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
Abstract
The invention relates to a method for recording data on recordable optical disk in data logging and/or playback device. The device comprises a buffer RAM having a store input data and presetting data. The optical disk comprises data logging area of recording input data and information recording area associated with input data. The method comprises the following steps: before logging the new input data into RAM, the presetting data being logged into data logging area; comparing a special presetting data of the data logging area with presetting data to be stored in the RAM; if same, the input data being temporarily stored in RAM and the input data of RMA being logged in the data logging area.
Description
The present invention relates to dish record and/or reproducing device, this device be used for to or from CD-R record and/or playback information, more particularly, relate to method at the CD-R identifying recording layer.
In dish record and/or reproducing device, the operation of recorded information is finished by record-header, and record-header is arranged in the equipment, is used for recorded information on CD-R.The information of the record on the CD also can be wiped with optical pickup device.
Fig. 1 shows one and has the dish record of record-header and pickup device and/or the one-piece construction block diagram of reproducing device in it.Referring to Fig. 1, to video disc recording and/or from the operation of optical disk data reproducing, i.e. coding and/or decode operation will be described below:
At first describe encoding operation, in this operation, information is recorded on the CD.By A/D converter 30 external sound signal is converted to digital signal.This conversion is finished by means of the quantification of the generation of the occlusion effect in the A/D converter 30.The digital signal of this conversion is by 1/5 of compression/extension processor 28 boil down to signal lengths.The signal of compression deposits impact damper RAM26 in by Memory Controller 24.It is poor that impact damper RAM26 regulates the transfer rate that deposits between data and the packed data, prevents data stacking.Stored data among the impact damper RAM26 is added to EFM-CIRC (Eight to FourteenModnlation-Cross Interleave Reed-Solomon Code) coder/decoder 20 under the control of memory controller 24, encode therein then.In EFM-CIRC coder/decoder 20, the combination of first and second additional datas and described coded data, wherein, first additional data has synchronous mode, analyzes a data etc., and second additional data has checks the parity code of correcting a mistake and timing code etc.Then, the data of combination produce the EFM modulating data with EFM (the Eight to Fourteen Modnlation) modulation of coder/decoder 20.The data of this modulation are by 4 being recorded on the CD 2 of being driven by head driver 6.
Below, introduce the decode operation of playback information from the CD.
Referring to Fig. 1, the data of record are reset by pick device 12 on the CD 2, are added to address decoder 18 through RF amplifier 16 then.Data from address decoder 18 are added to EFM-CIRC coder/decoder 20, the mistake that exists in inspection and the correction of data.Then, from second additional datas such as extracting data timing codes.After the mistake of inspection and correction of data, from the extracting data synchronistic model data of error correction.The data of all extractions are stored in impact damper RAM26 under the control of memory controller 24.The data that are stored among the impact damper RAM26 synchronously are expanded by compression/extension processor and data output time.Expanded data is converted to simulating signal by D/A 32.
Dish 2 in dish record and/or reproducing device is called " little dish " (mini disk), and wherein, the two-way simulating signal is recorded on it or from its playback.The equipment of Fig. 1 can be from playback information on three kinds of little dishes, and classification is shown in Fig. 2 A-2C, can also be recorded in this to information and coil slightly.
Fig. 2 A shows, the little dish structure of master that can reset and give record information thereon as traditional pocket dish, Fig. 2 B illustrates as the structure that writes down little dish in Bai Panshang energy recorded information, and Fig. 2 C shows the little dish of mixing that has master and can write down little dish character.Shown in the sectional view of Fig. 2 A-2C, it shows the part of little dish, two parts that it is divided or equates, and L1-L3 has represented the core of three little dishes respectively, R1-R3 has represented the periphery that this coils slightly respectively.
In Fig. 2 A, the block of information 40 of the little dish of master is divided into introduces district 42, program area 44 and draw-out area 46.Similarly, each can write down and mix little dish and has identical information district 48,58.For example, little dish that writes down of Fig. 2 B has block of information 48, and it has the district of introducing 50, program area 54 and draw-out area 56; The little dish of the mixing of Fig. 2 C has block of information 58, and block of information 58 has the district of introducing 60, program area 66 and draw-out area 68.Specifically, the block of information 48 and 58 that can write down little dish and mix little dish also comprises TOC (table of Contents) district 52 and 62, in toc region, has been write down the recorded information of each program area respectively by the user.The block of information 58 of mixing little dish further comprises a master district 64, and it points out master type or recordable type.
Each is set, and to introduce district 42,50 and 60 be for after the completing of dish, and given by the fabricator and record the information relevant with CD earlier.These districts are commonly referred to " toc region ".Each program area 44,54 and 56 is set is information such as record song sound signal, each draw-out area 46,56 and 68 is set comes recorded information, is used for indicating determining that each data can be recorded in program area a bit.In the introducing district 42 of the little dish of master, writing down the information relevant with dish, these information comprise number number (or program) of song, play each desired time of each song, play the desired time of all songs, and each song start address and index part.The toc region 52 and 64 that the user is set be used for audio-frequency information (for example song) is recorded in can write down little dish or mix little dish little, when going up record be recorded in program area in the relevant information of data, for example, the recorded content of program area resembles the song number, plays the each required time of each song, plays desired T.T. of all songs and each song and begin address with index part.The meaning of user's toc region is that the content that program area is wherein recorded can be by user's record.
In Fig. 3 A and 3B, the recording mode of CD is known, is exported by the head driver of Fig. 1 to form.Shown in Fig. 3 A, the voltage level of the output signal of head driver 6 changes.Therefore, the output signal of head driver changes the direction of current in 4, thus the electric polarity selectively in the conversion head 4.Fig. 3 B shows logging mode according to 4 electric polarity.
Fig. 1-3 be will consult below and CD and information recording operation described.Mainly explain the situation of recorded information in can writing down little dish.
Be higher than Curie temperature if can write down the surface temperature of little dish, magnetization will be lost in its surface.In the time of in the program area 54 that information is recorded recordable disc, laser beam is mapped to program area 54, with the surface heating of program area, up to surpassing Curie temperature.After the program area forfeiture magnetization, just become when being lower than Curie temperature labour contractor's drive signal to the end 4 in the surface temperature of program area 54.Then, the logic level remembered as requested of 4 electric polarity is magnetized to the N utmost point or the S utmost point.By this magnetic history, data are recorded in program area 54.After data recording operation is finished, the recorded content of program area 54, promptly be recorded in program area 54 in the relevant information of data just be recorded in toc region 52 by system controller 22, as shown in Figure 1.
In order to finish normal equipment records operation, 4 are associated with laser beam radiation with pick device 6, and simultaneously, 4 center is corresponding to laser beam.Intensity of laser beam will be enough to panel surface is heated to makes optical disc surface lose magnetization more than the Curie temperature.
Yet if 4 center is not corresponding with laser beam, data just can not record on the dish exactly, and the accurate information relevant with the data of record also just can not be recorded in toc region 52.For example and since program area 54 by laser beam heats to more than the Curie temperature, and program area 54 and unmagnetized, so there is a problem, desirable data just can not be recorded in position accurately.In detail, if the position in the program zone that 4 center places is to give having recorded special data earlier so that the zone of recorded information, then because the misalignment of head, information covers and writes program area.Therefore, giving the data that write down earlier in program area has lost.In this case, the reason that writes owing to covering, the user just can not obtain giving the data that are recorded in earlier in the program area, in addition, cover the dish that writes data in order to reuse to have, in this dish the data of record all must be play by other dishes/or reproducing device wipe, uses thisly to have that to cover the dish that writes data be unusual inconvenience.
The purpose of this invention is to provide a data record method, can be recorded in data on the CD-R exactly.
Another object of the present invention provides a data record method, can prevent to give the loss of the data of record during data are recorded in CD-R.
According to an aspect of the present invention, in order to achieve the above object, provide a kind of data are recorded in method on the CD, described CD has the data recorded area and the interblock that writes down the information relevant with the described input data that are recorded in described data recorded area of record input data, and described method comprises the steps: described data data recording is gone in the described data recorded area; Special input data and the described input data that will be recorded in the described data recorded area that described data recorded area is provided compare, before recording described interblock, determine whether described special input data and the described input data that will be recorded are complete same in the handle described information relevant with described input data.
In the method, the step that the described special input data and the described input data that will be recorded are compared also comprises: when described special data and the described input data that will write down are the full whiles, one new input data recording is arrived described data recorded area, simultaneously, the information relevant with described new input data is recorded into described interblock.
According to a further aspect in the invention, data recording to the record and/or reproducing device in CD on method, this impact damper RAM that do not got everything ready is in order to storage input data and give setting data, described CD has a data recorded area to write down input data from described impact damper RAM, be used for writing down and the relevant information of described input data that is recorded in described data recorded area with an interblock, described method comprises the steps: the described setting data from described impact damper RAM is recorded into described data recorded area, deposits new input data then in described impact damper RAM in; To compare from a special setting data and the described described setting data that will be recorded among the described impact damper RAM of described data recorded area; When depositing described setting data among the described impact damper RAM in when identical with described from the described special setting data of the described data recorded area of described dish, described input data are temporarily deposited in described impact damper RAM, and going into described data recorded area from the described input data recording of described impact damper RAM.
In the method, the step that described input data recording is gone into described data recorded area also comprise and be recorded in described recording areas in the relevant recorded information of described input data be recorded into the step of described interblock.
In the method, the described step that described special setting logarithmic data and the described described setting data that will deposit among the described impact damper RAM are compared also comprises: when from the described special setting data of the described data recorded area of described dish with to be deposited among the impact damper RAM described setting data not simultaneously, in the step of display part display message, illustrate that described input data can not normally be recorded in the described data recorded area of described dish.
By data record method of the present invention, can check whether new input data can normally be recorded in the program area of CD, can remain and give the input data that are recorded in the program area, because covering, these new input data do not write program area.
Can make those skilled in the art understand the present invention and purpose thereof better referring to accompanying drawing.
Fig. 1 is the traditional data recording and/or the circuit structure block diagram of reproducing device;
Fig. 2 A-2C is the diagrammatic view of the compact disk structure in Fig. 1 equipment;
Fig. 3 A and 3B are the logging mode that the basis illustrates CD with the output signal of the head driver of equipment;
Fig. 4 is a match map, is illustrated in the structure of impact damper RAM in data and/or the reproducing device;
Fig. 5 is the shop drawing of the logging mode of the embodiment of the invention.
Fig. 4 shows the structure of the impact damper RAM of a kind of novelty in data and/or the reproducing device, and it has realized data record method of the present invention.The structure of this equipment is identical with figure one, but impact damper RAM has three divided portion, and system controller is controlled other circuit part according to the control program of finishing logging program.In the equipment that the present invention uses, effectively recording operation can be done, wherein, one exists the special setting data among the impact damper RAM to record in the program area of dish, and need not be recorded in the information relevant toc region with this setting data, exist the special setting data of impact damper RAM and from the data among the impact damper RAM compare with distinguish they whether complete with, have only when they are full whiles, described input data can be recorded in the program area.In the following description, identical electric portion partly points out with identical label.
Referring to Fig. 1 and 4, impact damper RAM26 has an input data-storing part 70, is used for temporarily storing outer input data, data are recorded on the CD 2; Also has a user TOC information storage part 74, being used for an information (later on claim data association message) relevant with the input data that are recorded in program area 54 is recorded in user's toc region 52, with special data storage part 72, wherein, special data is given storage earlier to check whether the input data can be stored on the CD 2.
Fig. 5 shows according to novel method of the present invention, finishes the process of whole recording operation.This control procedure is to finish in the system controller 22 of Fig. 1.
Below, referring to the process prescription recording process of Fig. 5.
Referring to Fig. 5, when knocking the function key (not shown) to check that data whether can normal recordings on CD 2 time, system controller 22 begins to finish the control program of recording operation from the first step 80.In step 80, a message, for example " WILL YOU CONDUCT A VIRTUALRECORD MODE? " be displayed on the display part (not looking out) that links to each other with system controller 22, if logging mode is selected to key in by the user, then control enters step 82, finishes logging mode.If not, then control enters step 90, finishes logging mode.
In step 82, head driver 6 moves on to program area 54 according to the control signal labour contractor 4 of system controller 22, and control enters step 84, and record is from the special data of the special data storage part 72 of the program area 54 of CD 2.Then, the information relevant with the special data of program area 54 (to call the special data relevant information in the following text) is not recorded in the user TIC district 52, and control enters step 86.
In step 86, the special data that is recorded in the program area 54 produces once more, exists the special data in the special data storage part 72 also therefrom to be produced by system controller 22.In step 88, whether inspection is identical with the special data that stores part 72 from the special data among the impact damper RAM26 from the special data of program area, if two special datas are together complete, then control enters step 90, finish logging mode, if nonidentical, control enters step 94, at display part (not shown) display message, illustrate that the input data in the input data-storing part 70 of impact damper 26 can not normally deposit program area in.If two special datas entirely with, just mean that 4 can place the program area of dish exactly.
On the other hand, the user judges in step 90 whether the input data of input data-storing part 70 are recorded in program area.If determined logging mode, control enters step 92.Then, the input data recording in the input data-storing of the impact damper RAM26 part is in program area 54, and simultaneously, the input data association message is recorded in user's toc region 52.
If do not determine logging mode, finish the operating process of record.In this case, only check that whether importing data can normally be recorded on the CD 2.
Specifically, in step 88, if two special datas are not complete same, in step 94, the message that demonstration can not be write down.With reference to the message that shows, the input data can not be recorded in program area.Then can prevent to import data is capped and writes program area.Therefore, previous program area input data can be saved.
As mentioned above, according to data record method of the present invention, can check new input data whether can normal recordings in the program area of CD.By this identification, there is not covering to write program area because newly import data, can keep the input data that originally were recorded in program area.
Should understand, under situation about not departing from the scope of the present invention with spirit, those skilled in the art obviously can easily make other and revise modification.Therefore, the scope of the claim that the present invention is appended can not be confined to instructions, but around being present in whole features that the novelty of patentability is arranged of the present invention, comprises other equivalent measures.
Claims (5)
1, a kind of method at the CD identifying recording layer, described CD has the data recorded area of record input data, and the interblock of the record information relevant with described input data in the described data recorded area, it is characterized in that described method comprises the steps:
Described input data recording is gone into described data recorded area; With
Before the handle described information relevant with described input data is recorded into described interblock, one special input data of described data recorded area are compared with the described input data that will be recorded into described data recorded area, whether same entirely to determine described special input data with the described input data that will be recorded into.
2. according to the method for claim 1, it is characterized in that, the described step of described special input data and the described input data comparison that will write down is also comprised, when described special input data and the described input data that will write down are the full whiles, new input data recording is gone into described data recorded area, simultaneously, the information relevant with described new input data is recorded into described interblock.
3. one kind the method on the CD of data recording in a data recording and/or the reproducing device, described equipment has an impact damper RAM and is used for storage input data and gives setting data, described CD has a data recorded area in order to the described input data of record from described impact damper RAM, also has an interblock in order to the described input data relevant information of record with described data recorded area, it is characterized in that described method comprises the steps:
Before new input data are deposited in described impact damper RAM, will deposit described data recorded area in from the described setting data among the described impact damper RAM;
To compare with the described setting data that will deposit described impact damper RAM in from a special setting data of described data recorded area; With
When described special setting data and the full while of described setting data that will deposit among the described impact damper RAM from the described data recorded area of described dish, temporarily deposit described input data in described impact damper RAM, and will go into described data recorded area from the described input data recording of described impact damper RAM.
4. according to the method for claim 3, it is characterized in that the described step that described input data recording is gone into described data recorded area also comprises a step, and the information relevant with the described input data in the described data recorded area is recorded into described interblock.
5. according to the method for claim 4, it is characterized in that, described special setting data and the described step that the described special setting data that will deposit impact damper RAM in compares are also comprised a step, when the described special setting data of the described data recorded area of described dish is the full while with the described setting data that will deposit described impact damper RAM in, on the display part, show a message, illustrate that described input information can not normally be recorded into the described data recorded area of described dish.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR32092/94 | 1994-11-30 | ||
| KR1019940032092A KR960019121A (en) | 1994-11-30 | 1994-11-30 | Data recording method of recordable optical disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1139261A true CN1139261A (en) | 1997-01-01 |
| CN1083130C CN1083130C (en) | 2002-04-17 |
Family
ID=19399735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95115920A Expired - Fee Related CN1083130C (en) | 1994-11-30 | 1995-08-30 | Method for recording data on recordable optical disk |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR960019121A (en) |
| CN (1) | CN1083130C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208202A (en) * | 2010-04-21 | 2011-10-05 | 佛山市智邦电子科技有限公司 | Method for caching compact disc (CD) data during forward playing of compact disc (CD) signals and player |
-
1994
- 1994-11-30 KR KR1019940032092A patent/KR960019121A/en not_active Application Discontinuation
-
1995
- 1995-08-30 CN CN95115920A patent/CN1083130C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208202A (en) * | 2010-04-21 | 2011-10-05 | 佛山市智邦电子科技有限公司 | Method for caching compact disc (CD) data during forward playing of compact disc (CD) signals and player |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1083130C (en) | 2002-04-17 |
| KR960019121A (en) | 1996-06-17 |
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Granted publication date: 20020417 Termination date: 20090930 |