CN1300780C - Data recording method - Google Patents

Abstract

An information recording method for recording a digital information file on an information recording medium is provided. The digital information file comprises a plurality of digital data, and the information recording medium is provided with a plurality of preset recording units which are sequentially distributed on an inner recording area to an outer recording area of the information recording medium and are used for recording the plurality of digital data of the digital information file. The information recording medium has a data recording start area in an inner recording area, and the data recording start area has a first start recording unit where a plurality of digital data of the digital information file are originally recorded. The information recording method starts from a first initial recording unit, and a second initial recording unit is calculated by a preset calculation program. Then, these digital data are recorded on the information recording medium, starting from the calculated second start recording unit. The second initial recording unit and the first initial recording unit are still spaced by at least a plurality of blank recording units.

Description

Data recording method

technical field

The present invention relates to an information recording method, in particular to an information recording method for recording digital information (digital information) files on an information recording medium (information recording medium).

Background technique

An optical disc drive is an existing information recording device for recording digital information files on an information recording medium, such as an optical disc. Taking a disc-shaped optical disc as an example, when using a high-speed optical disc drive to record digital information on the optical disc, the high-speed optical disc drive rotates the optical disc at a fixed rotational speed, and the recording method is controlled by the inner ring of the optical disc. Beginning with an initial recording unit in the lead-in area, the digital information files are sequentially recorded to the outer circle.

Since the rotation speed of the optical disc is fixed, the speed at which the optical disc drive writes digital data to the outer portion of the optical disc is faster than that to the inner portion of the optical disc.

Generally, the radius of the outermost circle of an optical disc is about 3 times the radius of the innermost circle, and the speed at which the CD player records or reads the data on the outermost circle of the optical disc is three times the speed at which the data on the innermost circle of the optical disc is recorded or read. about.

Since the way of recording the optical disc in the existing optical disc drive is to start from the initial recording unit and move from the inner circle to the outer circle, that is, start from a slower writing speed, a lot of recording time is wasted in vain. Therefore, the main purpose of the present invention is to provide a data recording method to effectively increase the writing speed of an optical disc drive for writing digital data to an optical disc.

Contents of the invention

The main purpose of the present invention is to provide an information recording method for recording a digital information file on an information recording medium. The digital information file contains a plurality of digital data, and the information recording medium has a plurality of predetermined recording units, which are sequentially distributed from an inner recording area to an outer recording area of the information recording medium for recording the digital information file multiple digital data. The inner recording area of the information recording medium has a data recording start area or called lead-in area (Lead-in Area). There is a first initial recording unit in the data recording initial area, which is originally intended to start recording a plurality of digital data of the digital information file. The information recording method starts from the first initial recording unit, and calculates a second initial recording unit through a predetermined calculation program. Then the digital data are recorded on the information recording medium not from the original first recording unit, but from the calculated second starting recording unit. There are at least a plurality of blank recording units between the second initial recording unit and the first initial recording unit.

The data recording method of the present invention can effectively increase the writing speed of the optical disc drive to write digital data into the optical disc, and further greatly increase the burning speed of the optical disc drive.

The advantages and spirit of the present invention can be further understood with the help of the following detailed description of the invention and the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of an optical disc used in the information recording method of the present invention.

FIG. 2 is a flow chart of recording information on the optical disc of FIG. 1 according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of an optical disc drive used in the information recording method of the present invention.

FIG. 4 is an optical disc used to illustrate the difference between the method of the present invention and the prior art.

Detailed ways

The invention provides an information recording method for recording a digital information file on an information recording medium, wherein the digital information file contains a plurality of digital data. The information recording method of the present invention uses an information recording device to record digital information files on the information recording medium. The information recording device is electrically connected to a computer, and the computer includes a data reading and writing software to control the information recording device to write or read these digital data. The information recording medium can be a disk-shaped optical disc, and the information recording device is an optical disc drive.

Please refer to FIG. 1 , which is a schematic diagram of an optical disc 10 used in the information recording method of the present invention. The optical disc 10 is disc-shaped, which includes a plurality of circular recording tracks (not shown in the figure) arranged on the optical disc 10 in a spiral manner. In the information recording method of the present invention, the information recording medium may also be an information recording medium having concentric circular recording tracks, and the recording units are distributed on the concentric circular recording tracks for recording digital data.

The optical disc 10 includes an inner recording area 12 and an outer recording area 14 . In Fig. 1, the optical disc 10 has a plurality of predetermined recording units (not shown), which are distributed in the spiral recording track, and are sequentially distributed in the inner recording area 12 to the outer recording area 14, for recording the digital information file Multiple numeric data.

In the recording area 12, there is a data recording starting area or called lead-in area (Lead-in Area) (not shown), in which a first starting recording unit 11 is arranged in the data recording starting area, and a file configuration table is stored (File Allocation Table, FAT). The first initial recording unit 11 is originally scheduled to start recording a plurality of digital data of the digital information file. The file configuration table is used to record a blank file and related information of the digital file, so that the digital information file can be read correctly later.

When the information recording method of the present invention records a digital information file, a second initial recording unit 15 is obtained through a predetermined calculation procedure starting from the first initial recording unit. Then, these digital data are recorded on the optical disc 10 not from the original first recording unit 11 but from the calculated second recording unit 15 . The multiple recording units that the optical disc 10 has are enough to record all the digital data that the digital information file has, and there are at least a plurality of blank recording units between the second initial recording unit 15 and the first initial recording unit 11 .

According to a specific embodiment of the present invention, the outer recording area 14 of the optical disc 10 has a last recording unit 16 . The predetermined calculation program first calculates the number of digital data contained in the digital information file. Calculating forward from the last recording unit 16 of the optical disc 10, a second initial recording unit 15 is obtained, so that between the second initial recording unit 15 and the last recording unit 16, all the information contained in the digital information file can be made Digital data is fully recorded. Finally, the digital information file is recorded on the optical disc 10 from the second initial recording unit 15 .

According to another specific embodiment of the present invention, the predetermined calculation program sets an interval recording unit number, starting from the first initial recording unit 11, a recording unit after calculating the interval recording unit number is the second initial recording unit 15.

Please refer to FIG. 2 . FIG. 2 is a flow chart of recording information on the optical disc 10 of FIG. 1 according to an embodiment of the present invention. According to a specific embodiment of the present invention, the process of recording information on the optical disc 10 in FIG. 1 with respect to the information recording method of the present invention, the steps are as follows:

Step S30: start;

Step S32: Calculate the number of these digital data contained in the digital information file;

Step S34 : According to the numbers of these digital data obtained by calculation, calculate forward from the last recording unit 16 to obtain a second initial recording unit 15 .

Step S36 : Record a blank data file between the first initial recording unit 11 and the second initial recording unit 15 .

Step S38: Record the digital data of the digital information file on the optical disc 10 from the initial recording unit 15 .

Step S40: Record the relevant information of the blank data file and the digital information file in the file configuration table.

Step S42: Finish.

Please refer to FIG. 3 . FIG. 3 is a schematic diagram of an optical disc drive 20 used in the information recording method of the present invention. The optical disk drive 20 includes a pickup head 22 , an optical lens assembly 26 , an actuator 28 , and a controller 30 . The read/write head 22 is used for emitting a light beam 23 to write digital data onto an optical disc 24 and to read digital data from the optical disc 24 . The optical lens group 26 is used to focus the light beam emitted by the read-write head 22 to the optical disc 24 and focus the light beam reflected from the optical disc 24 to be received by the read-write head 22 for subsequent interpretation.

The actuating device 28 is used to drive the read/write head 22 , the optical lens group 26 and the optical disc 24 to write or read the digital data. The actuating device 28 includes a spindle motor module 32 to rotate the optical disc 24 at a rotational speed so that the read/write head 22 can write the digital data to be written onto the optical disc 24 . The writing speed of the read-write head 22 to write these digital data into the outer recording area of the optical disc 24 is faster than that into the inner recording area.

The controller 30 is used for controlling the read-write head 22 , the optical lens group 26 and the actuator 28 . The controller 30 converts the digital data to be written into a corresponding write control command, and transmits it to the head 22 at a data transmission speed for writing into the rotating optical disc 24 . The writing speed at which the head 22 writes digital data to the optical disk 24 is affected by the data transmission speed of the controller 30 and the rotation speed of the spindle motor module 32 . The data transmission speed is higher than the rotation speed, and the writing speed is limited by the rotation speed.

When the rotation speed of the spindle motor module 32 is constant, and when the read/write head 22 rotates to the outer circle of the optical disk 24, it will rotate by the same angle due to the increase of the radius of the optical disk, and the number of recording units increases toward the outer circle. The controller 30 can increase the data transmission speed as the number of recording units increases, so that the data transmission speed is higher than the rotation speed, so the writing speed is limited by the rotation speed.

The writing speed of the read/write head 22 to write these digital data into the outer recording area is faster than that into the inner recording area. Estimated on the basis that the radius of the outermost circle of a general optical disc is about 3 times the radius of the innermost circle, the speed at which the optical disc drive records or reads the data on the outermost circle of the optical disc is the speed at which the data on the innermost circle of the optical disc is recorded or read. About 3 times.

Please refer to FIG. 4 . FIG. 4 is an optical disc 50 for illustrating the difference between the method of the present invention and the prior art. Taking an existing optical disc 50 to record a 325MB digital information file as an example, the present invention will illustrate how to improve the information recording speed of the optical disc drive. The data capacity of the rewritable optical disc 50 is 650MB, and the size of the digital information file to be recorded is 325MB, which is just half of the data capacity of the optical disc 50 .

The conventional method needs to start recording from the innermost circle 52 of the optical disc 50 to the middle part 54 of the optical disc. The innermost ring 52 has a radius R1 of 2 cm. While the middle portion 54 has a radius R2 equal to 4.472 cm, the difference between the radius R1 and the radius R2 is 2.472 (Δr1) cm. The method of the present invention first calculates the number of digital data of the digital information file, and calculates forward from a last recording unit located at the outermost circle 56 of the optical disc 50, that is, the last predetermined timing code (ATIP) of the optical disc, and draws An optimal initial predetermined timing code is located in the middle portion 54 of the disc, at a radius R2 equal to 4.472 cm. Starting from the middle portion 54 , the digital information file is recorded on the optical disc 50 outwards to the outermost periphery 56 of the optical disc 50 . The outermost ring 56 has a radius R3 equal to 6 cm, and the difference between the radius R3 and the radius R2 is 1.528 cm (Δr2). Compared with the existing method, the radius difference Δr1 of the existing method is 1.618 times of the radius difference Δr2 of the present invention. Since the rotation speed of the read-write head is the same, the time required for the CD-ROM to record this information file is directly proportional to the radius difference. That is, the time required to record this information file by using the prior art is 1.618 times that of the present invention, so the recording speed can be greatly improved by using the present invention.

Compared with the existing information recording method which starts recording from the innermost circle of the recording medium, the information recording method of the present invention obtains a second initial recording unit through a predetermined calculation program, and starts from the second initial recording unit. The recording unit starts to record the digital information file on the recording medium, which can effectively increase the recording speed of the current information recording equipment.

Through the above detailed description of the preferred specific embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, rather than the scope of the present invention is limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the claimed patent scope of the present invention.

Claims (16)

1. An information recording method for recording a digital information file on an information recording medium, the digital information file includes a plurality of digital data, and the information recording medium has a plurality of predetermined recording units, which are sequentially distributed on the information recording medium An inner recording area to an outer recording area of the medium are used to record a plurality of digital data of the digital information file. The inner recording area of the information recording medium has a data recording start area, and the data recording start area There is a first initial recording unit inside, which is originally scheduled to start recording a plurality of digital data of the digital information file, wherein the outer recording area of the information recording medium has a last recording unit, and the information recording method includes Follow these steps: (a) Designate a second initial recording unit between the first initial recording unit and the last recording unit, wherein the number of recording units between the second initial recording unit and the last recording unit is sufficient to record the number all digital data contained in the Information File; (b) recording the digital data on the information recording medium not from the original first recording unit but from the second initial recording unit; Wherein, there are at least a plurality of blank recording units between the second initial recording unit and the first initial recording unit. 2. The information recording method as claimed in claim 1, further comprising the following steps: counting the number of such digital data contained in the digital information file; According to the calculated numbers of digital data, the second initial recording unit is calculated from the last recording unit, so that all digital data included in the digital information file can be recorded. 3. The information recording method as claimed in claim 1, further comprising the following steps: determining an interval recording unit number, and starting from the first initial recording unit, a recording unit after calculating the interval recording unit number is the The second starting recording unit. 4. The information recording method as claimed in claim 1, wherein the data recording method will first record a blank data file between the second initial recording unit and the first initial recording unit, and then perform step (b ). 5. The information recording method as claimed in claim 4, wherein the data recording starting area of the inner recording area of the information recording medium stores a file configuration table, and after performing step (b), the information recording method will The relevant information of the blank data file and the digital information file is recorded in the file configuration table, so that the digital information file can be read correctly later. 6. The information recording method as claimed in claim 1, wherein the recording units are distributed in a plurality of circular recording tracks for recording the digital data. 7. The information recording method as claimed in claim 6, wherein the circular recording tracks are concentrically arranged on the information recording medium. 8. The information recording method as claimed in claim 1, wherein the recording units are distributed in a spiral recording track for recording the digital data. 9. The information recording method as claimed in claim 8, wherein the information recording method uses an information recording device to record the digital information file on the information recording medium. 10. The information recording method as claimed in claim 7, wherein the information recording device is electrically connected to a computer, and the computer includes a data reading and writing software to control the information recording device to write or read the digital data. 11. The information recording method as claimed in claim 9, wherein the information recording medium is a disc-shaped optical disc, and the information recording device is an optical disc drive. 12. The information recording method as claimed in claim 11, wherein the optical disc drive comprises: a read/write head for emitting a beam of light to write the digital data onto the optical disc and to read the digital data from the optical disc; An optical lens group is used to focus the light beam emitted by the read-write head onto the optical disc, and focus the light beam reflected from the optical disc to be received by the read-write head for subsequent interpretation; an actuating device for actuating the read-write head, the optical lens group and the optical disc to write or read the digital data; and A controller is used for controlling the read-write head, the optical lens group and the actuating device. 13. The information recording method as claimed in claim 12, wherein the actuating device comprises a spindle motor module to rotate the optical disc at a rotational speed, so that the read-write head can write the digital data to be written into On the optical disc, the speed at which the head writes the digital data into the outer recording area of the optical disc is faster than that into the inner recording area of the optical disc. 14. The information recording method as claimed in claim 13, wherein the controller converts the digital data to be written into corresponding write control commands, and transmits them to the read/write head at a data transmission speed for writing the disc inserted into the spin. 15. The information recording method as claimed in claim 14, wherein the writing speed at which the head writes the digital data to the optical disk is affected by the data transmission speed of the controller and the rotation speed of the spindle motor module . 16. The information recording method as claimed in claim 15, wherein the data transmission speed is higher than the rotation speed, and the writing speed is limited by the rotation speed.

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