CN100377249C - Optical disk recorder and control method thereof - Google Patents

Abstract

The invention discloses an optical disk burner and a control method thereof, which are mainly applied to a high multiple optical disk burner and solve the problem of failure in burning a disk, which is derived because the burning speed is higher than the encoding speed.

Description

Optical disc burner and its control method

technical field

The invention relates to an optical disc burner and its control method, which is applied to a sub-optical burner system, in particular to a high-magnification optical drive.

Background technique

With the progress of the times, CDs have already replaced traditional recording media and become the mainstream of data storage. With the popularity of burners, CDs have almost become a necessity in life; early burners were limited by the However, in recent years, the recording speed of the burner has been continuously improved, and the CD has gradually become the most important part of the storage medium.

However, although the burning speed is getting faster and faster, the speed of audio-visual data encoding has not improved much by comparison. In the early days, the speed of data encoding was roughly the same as the speed of burning, so the data could be correctly burned on the disc without any problems. However, because the burning speed has greatly exceeded the speed of data encoding, when burning , It often happens that the burning head has no data to write to the disc.

In order to solve this situation, the burning head will automatically write a filler code of "1111". However, if the filler code is too long, it will cause a sudden stagnation of data or audio and video reproduction, which will be recognized as Therefore, this waiting time (or called filler code) has a certain critical value. When programming, the waiting time must not exceed this critical value. However, the current high-magnification programmer does not Corresponding supporting measures are provided to greatly increase the chance of disk burning failure. For example, for a 4Mbps audio and video source, only a 4.32Mbps CD burner can be used, but a 11.06Mbps DVD burner cannot be used, which is quite inconvenient to use.

Contents of the invention

The technical problem to be solved by the present invention is to provide an optical disc burner and its control method, which can solve the problem of disc burning failure of the known burner due to the burning speed being higher than the encoding speed, and improve the scope of application of the burner .

In order to achieve the above object, the present invention provides a control method for an optical disc burner, which is used to control a recording head to burn a disc, which is characterized in that it includes the following steps:

Encoding a piece of data to obtain a piece of coded data;

storing the encoded data in a first temporary storage area;

intercepting one or more specific quantities of the encoded data from the first temporary storage area to a second temporary storage area; and

The encoded data is provided through the second temporary storage area for the burning head to burn the disk.

The control method of the above-mentioned optical disc burner is characterized in that the specific number is TL/((1/V1)-(1/V2)), where TL is the critical waiting time of the optical disc burner, and V1 is the critical waiting time of the optical disc burner. The encoding speed of data, V2 is the burning speed of the burning head.

The above-mentioned control method for an optical disc burner is characterized in that the step of providing the encoded data to the burning head to burn the disc through the second temporary storage area also includes batching the encoded data according to the A specific number is given to the programming head to program.

In order to better realize the object of the present invention, the present invention also provides a kind of optical disc burner, in order to control a recording head to burn a disc, it is characterized in that, comprises:

an encoder, used for encoding a data to form an encoded data;

A first temporary storage area, connected to the encoder, used to store the encoded data, and divide it into one or more encoded data of predetermined size;

a second temporary storage area, connected to the first temporary storage area, for receiving the one or more specific quantities of encoded data dumped from the first temporary storage area; and

A burning head, connected to the second temporary storage area, is used for burning the specific quantity of encoded data to the disc.

The feature of the above-mentioned CD burner is that the first temporary storage area is a buffer zone.

The feature of the above-mentioned optical disc burner is that the second temporary storage area is a buffer zone.

The above-mentioned optical disc burner is characterized in that the specific number is TL/((1/V1)-(1/V2)), where TL is the critical waiting time of the optical disc burner, and V1 is the encoding of the data Speed, V2 is the burning speed of the burning head.

The feature of the above-mentioned optical disc writer is that the second temporary storage area gives the encoding data to the recording head in batches according to the specified number.

The technical effect of the present invention is that: according to the optical disc recorder and its control method disclosed in the present invention, the coded data is mainly transmitted to the recording head in batches for burning, and the speed difference between the two will produce The waiting time is scattered, so that each waiting time does not exceed the critical waiting time, and there is no problem of burning failure. The actual hardware architecture is designed with two temporary storage areas, one temporary storage area is connected to the encoder to store encoded data, and the other temporary storage area is set between the first temporary storage area and the burning head , used to grab the coded data in batches for the burning head to burn to the disc, so that the waiting time of the burning head can be greatly dispersed, and reduced to below the critical waiting time, without disc failure. The problem of program burning failure.

Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic flow chart of the steps of the present invention; and

FIG. 2 is a schematic diagram of the architecture of the present invention.

Wherein, the reference numerals of the accompanying drawings are explained as follows:

11 encoders

12 CPU

13 The first temporary storage area

14 Second Temporary Storage Area

15 burning head

16 data

17 platters

Detailed ways

According to the disc burner and its control method disclosed in the present invention, it mainly burns the data to be burnt to the burner head in batches, so that its normal state remains in the working state, although the number of waiting states It will increase, but the waiting time each time will be dispersed due to batch programming, so it will be shortened and will not exceed the critical waiting time of the burner, so that there will be no discs due to exceeding the critical wait time of the burner The burning time will fail.

Its method is as shown in Figure 1, and at the same time cooperates with the schematic diagram of Figure 2, the programmer includes an encoder 11, a central processing unit (CPU) 12, a first temporary storage area 13, a second temporary storage area 14, and a programming head 15, its main actions are all controlled by the central processing unit 12, and the encoder 11, the first temporary storage area 13, the second temporary storage area 14 and the programming head 15 are connected in sequence. In terms of actual hardware architecture, it is better to use buffers in the first temporary storage area 13 and the second temporary storage area 14 .

Step flow of the present invention: step 201, encode the data 16 to be burned through the encoder 11; step 202, store these encoded data through the first temporary storage area 13; The encoded data is sent to the second temporary storage area 14 ; step 204 , the burning head 15 can only burn the data in the second temporary storage area 14 , and burn the encoded data of a predetermined size on the disc 17 .

Therefore, the key point is how to determine the predetermined size of the transmitted encoded data? First, assume that the encoding speed of the encoder 11 is V1, the burning speed of the burning head 15 is V2, and the allowable critical waiting time TL of the burning device, therefore, assuming that the encoded data of a predetermined size is D1, the burning head The burning time of 15 is D1/V2, after waiting for a period of time (encoder 11 supplements the amount of encoded data), the encoded data of predetermined size is sent to the second temporary storage area 14 by the first temporary storage area 13 again, For the burning head 15 to burn data to the disc 17, because compared with V1 and V2, the transmission time is quite short, so it is ignored, because the critical waiting time TL of the burner, so the waiting time mentioned above is used Set as the critical waiting time TL, so we can get:

D1＝V1*(D1/V2+TL)

That is to say, the burning time of the burning head 15 plus the waiting time (predetermined as the critical waiting time TL), the encoder 11 must encode the encoded data D1 of a predetermined size required for burning, so the derivation can be calculated:

D1＝TL/((1/V1)-(1/V2))

Therefore obtain the coded data of the required predetermined size when being critical, so, as long as the first temporary storage area 13 transmits the D1 data to the second temporary storage area 14 every TL time, it can be guaranteed that the waiting time of the burning head 15 will not be reduced. critical time will be exceeded.

In practical applications, considering that the above approach will cause too frequent data transmission between the first temporary storage area 13 and the second temporary storage area 14, and waste too many unnecessary resources, it can be considered to increase the predetermined size by N times The encoded data D1 is transmitted to the second temporary storage area 14 once, and then the second temporary storage area 14 divides the data into N times and gives the recording head 15 to burn the disc 17, so that better results can be obtained.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the implementation scope of the present invention; that is, all equivalent changes and modifications made according to the content and spirit of the present invention are covered by the scope of the present invention .

Claims (6)

1. A control method of an optical disc burner, used to control a recording head to burn a disc, is characterized in that, comprises the following steps: Encoding a piece of data to obtain a piece of coded data; storing the encoded data in a first temporary storage area; Intercepting one or more specific quantities of the encoded data from the first temporary storage area to a second temporary storage area, the specific quantity is TL/((1/V1)-(1/V2)), where TL is The critical waiting time of the optical disc burner, V1 is the encoding speed of the data, and V2 is the burning speed of the burning head; and The encoded data is provided through the second temporary storage area for the burning head to burn the disc. 2. The control method of an optical disc burner according to claim 1, wherein the step of providing the coded data to the recording head to burn the disc through the second temporary storage area also includes batching The coded data is given to the burning head for burning according to the specific quantity. 3. A disc burner, used to control a burning head to burn a disc, is characterized in that it includes: an encoder, used for encoding a data to form an encoded data; A first temporary storage area, connected to the encoder, used to store the encoded data and divide it into one or more specific quantities of encoded data; a second temporary storage area, connected to the first temporary storage area, for receiving the one or more specific quantities of encoded data dumped from the first temporary storage area; and a burning head, connected to the second temporary storage area, for burning the specific amount of coded data to the disc; Wherein the specific number is TL/((1/V1)-(1/V2)), where TL is the critical waiting time of the disc burner, V1 is the encoding speed of the data, and V2 is the burning head speed. 4. The optical disc burner according to claim 3, wherein the first temporary storage area is a buffer zone. 5. The optical disc burner according to claim 3, wherein the second temporary storage area is a buffer zone. 6 . The optical disc writer according to claim 3 , wherein the second temporary storage area batches the encoded data to the recording head according to the specific number. 7 .

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