KR100792282B1 - Method for displaying recording status of data recorded on digital convergence disc and digital convergence disc player - Google Patents

Abstract

The present invention relates to a method of displaying the recording progress when recording data on a digital convergence disc. The data recording status display method according to the present invention detects whether a recording command set for recording a selected source file on a Digital Convergence Disk (DCD) is input from a user. At this time, when a recording command is inputted, information related to a recording situation is obtained from a recording control apparatus for transmitting a selected file and a control code for controlling a recording operation, and a DCD player for substantially recording data on a digital convergence disk according to the control code. . From the recording situation related information obtained above, the size of the data recording free space of the DCD is compared with the size of the source file. Mark it so you can. Accordingly, the user can recognize the transmission amount and the transmission rate to determine whether or not the normal recording progress, and can avoid the hassle of having to repeat the recording operation through the recording margin information and the lack message.

DCD, Player, Record, Short Message, Bit Rate

Description

Method for displaying recording status of data recorded on digital convergence disc and digital convergence disc player

1 is a diagram illustrating a digital convergence disc divided by recording area;

2 is a schematic block diagram of a digital convergence disc player;

3 is a state transition diagram of an engine in a command transfer process between a host and an engine of the digital convergence disc player shown in FIG.

4 is a flowchart for explaining a data recording status display method according to the present invention.

Explanation of symbols on the main parts of the drawings

110: disk 120: engine

126, 143: flash memory 127: engine buffer

128: engine control unit 128-1: register unit

128a: control register 128b: status register

128c: byte count register 128d: data register

140: host 141: host control unit

141a: Timer 141b: OSD

142: input unit 142a: key input unit                 

142b: voice input unit 145: LCD

146: voice output unit 200: personal computer (PC)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital convergence disc player, and more particularly, to a method of displaying recording progress when recording data on a recording medium.

Digital Convergence Disk (hereinafter referred to as 'DCD') is a large-capacity recording medium having a recording capacity of 500 megabytes on a coin-sized disk. This capacity is about 3 to 5 minutes to store about 100 to 150 pieces of encoded music.

FIG. 1 is a diagram illustrating a digital convergence disk (DDC) classified according to recording areas.

The DCD 110 has a hole 112 formed at the center thereof so that a spindle can be fitted when mounted in the DCD player. The disk surface from the hole 112 to the outer circumference is divided into a unique number recording area 114, a data recording area 116, and a file system recording area 118. A unique number assigned to each DCD 110 is recorded in the unique number recording area 114 to distinguish each DCD 110. In addition, the unique number recording area 114 includes identification information for each side according to the characteristics of the DCD 110, which is an optical recording medium capable of recording on both sides. The data recording area 116 is an area where data such as music data, document data, image data, and the like are recorded, and occupies most of the recording capacity of the DCD 110. In the file system recording area 118, information about each file system recorded in the data recording area 116 of the DCD 110 is recorded. The file system information includes the size, name, recording date and time, recording format, directory information, and last modified date and time of the file, etc., recorded in the data recording area 116 of the DCD 110.

On the other hand, the DCD player for recording and reproducing data for the DCD 110 as described above is to receive the source data and control data from the external device when performing data recording to the DCD (110) to perform the recording operation.

When performing a data recording operation on the DCD 110 in the DCD player as described above, if there is no file recorded in the DCD 110, data is recorded from the beginning of the data recording area. However, if a file already exists in the DCD 110, data is recorded after the end of the recorded file. In this case, the external device must have a function of transmitting a source file of a DCD format and a control code relating to a recording operation of the DCD player so that data can be recorded on a disc equipped with the DCD player.

However, when the data recording command is transmitted from the external device together with the source file, the DCD player records data regardless of the recording free space of the DCD 110 and the size of the file transmitted from the outside. If the size of is smaller than the size of the source file, all the source files cannot be recorded, and only part of the file is recorded. In this case, the user may not be able to record the desired file properly and either delete the partially recorded file or replace it with a new disk with free recording space. This is only after the recording has been performed. There was a problem that it was very cumbersome with repeated recording process.

Disclosure of the Invention An object of the present invention is to provide a method of displaying a data recording status so that a user can recognize a data recording situation recorded on a digital convergence disk and to obtain information on the remaining amount of data recordable from the DCD to solve the above problems. It is to provide a DCD player that can display itself or transmit to an external device so that it can be recognized.

A data recording status display method according to the present invention for achieving the above object comprises the steps of: detecting whether a recording command set for recording a selected source file on a digital convergence disk (DCD) is input from a user; A recording control device for transmitting the selected file and a control code for controlling a recording operation when the recording command is input, and obtaining information related to a recording situation from a DCD player for substantially recording data on a digital convergence disc according to the control code; Doing; Comparing the size of the data recording free space of the DCD with the size of the source file from the recording situation related information; And displaying a message indicating that the DCD recording free space is insufficient when the size of the recording free space of the DCD is smaller than the size of the source file.                     

The acquiring the recording situation related information may include: acquiring transmission speed and source file size information from the recording control device; And obtaining size information on a recording free space of the DCD from the DCD player.

The acquiring the recording situation related information may further include displaying the size of the recording free space of the DCD so that a user may recognize the size of the data recording free space of the disc.

On the other hand, the data recording status display method includes the step of transmitting the control code associated with the source file and the recording operation to the DCD player, if the size of the free space in the comparison step is larger than the size of the source file; Summing up one transmission amount of the source file; And displaying a data transmission amount and a transmission rate through the summed value.

In addition, in the DCD recording free space shortage display step, a selection item for checking whether to replace the disk and / or the disk surface and the recording free space of the DCD is ignored may be further displayed.

A digital convergence disc player according to the present invention for achieving the above object comprises an engine for reading and transmitting file system information from a file system recording area of a digital convergence disc; And summing the size of each file from the file system information transmitted from the engine, and calculating the remaining amount of recordable data of the digital convergence disk based on the difference between the sum result and the total size of the data area of the digital convergence disk. And a host transmitting information on the recordable remaining amount to the external device when a recording command is received from the device through an interface.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The present invention is described with reference to FIG. 1, the same reference numbers being cited.

2 is a schematic block diagram of a DCD player 100 according to the present invention.

The DCD player 100 is largely comprised of the engine 120 and the host 140. Here, the engine 120 is a DCD driver that accesses the DCD 110 so that data can be recorded and read. The host 140 is connected to an external device, for example, a personal computer (PC) 200, to control the engine 120 from the PC 200. In addition, the host 140 is connected to the engine 120 to enable data interfacing, and serves as an interface for receiving source data and control codes from an external PC 200 and transferring the source data to the engine 120, and the engine 120. Serves as a playback device for receiving and reading data read out from the DCD 110 by means of. In addition, the host 140 sums the size of each file from the file system information transmitted from the engine, calculates the remaining amount of data recording of the DCD based on the difference between the sum result and the total size of the data area of the DCD. When a recording command is received through the interface, information about the recordable remaining amount is transmitted to an external device.

The engine 120 includes a spindle 121, a DCD pickup unit 122, a spindle 124, a pickup driving unit 125, an engine memory 126, an engine buffer 127, and an engine control unit 128.

The DCD pickup unit 122 records and reads data under the control of the engine controller 128 with respect to the mounted DCD 110. The spindle driver 124 and the pickup driver 125 drive the spindle 121 and the DCD pickup unit 122 under the control of the engine control unit 128. The engine buffer 127 temporarily stores data to be recorded and read data when the engine pickup unit 122 records or reads data from the DCD 110. The engine buffer 127 may use SRAM. The engine memory 126 stores code values for various commands promised between the engine unit 120 and the host 140, and a program for operating the engine unit 120 is stored. At this time, the flash memory 126 is used as the engine memory 126.

The engine controller 128 receives a command transmitted from the host 140, and according to a program stored in the engine memory 126, the DCD pickup unit 122, the spindle driver 124, the pickup driver 125, and the engine buffer. Control 127. In addition, the engine control unit 128 includes a register unit 128-1 consisting of four registers for use in communication with the host 140.

The register section 128-1 is composed of a control register 128a, a status register 128b, a byte counter register 128c, and a data register 128d, and each register is operated as follows.

The control register 128a records function control and interface interrupt enable / disable information by the host 140, and reads the values from the engine controller 128 to output the engine 120. Control each block of.

The status register 128b records and reads status information and interrupt reason information from the engine 120, and reads the information from the host 140 to perform control according to the read information.                     

Byte counter register 128c performs both write and read operations at host 140 and engine 120, respectively. However, when the BUSY bit set in the status register 128b is clear, the host 140 may write to the byte counter register 128c, and the set data DATA bit of the status register 128b. Is set, the return valid information is read from the byte counter register 128c. The byte counter register 128c contains the byte count for subsequent command, data, or status mode transfers.

The data register 128d may also be read and written in both the host 140 and the engine 120. However, the host 140 writes to the data register 127d while in the command and data out phases, and in the engine 120, the status and data in phases are displayed. Read data register 127d.

The host 140 includes an input unit 142 equipped with a key input unit 142a and a voice input unit 142b, a host memory 143, a USB interface 144, a liquid crystal display (LCD) 145, and an audio codec 146a. And an audio output unit 146 and a host control unit 141, each of which comprises an amplifier 146b.

The key input unit 148 includes command keys such as selection, playback, recording, skipping, and volume provided to enable a user to input a command regarding the operation of the DCD player 100.

The host memory 143 stores code values for various commands promised between the host 140 and the engine 120, and programs related to operations of the engine 120 and the host 140 are stored. The flash memory 143 is used as a storage means.

The USB interface 144 allows an external device such as the DCD player 100 and the PC 200 to interface data with each other.

The LCD 145 displays user identification information on the screen under the control of the host controller 141.

The audio output unit 146 outputs various voice messages such as audio data read out from the DCD 10 and internal warning sounds under the control of the host controller 141.

The host controller 141 may include a plurality of timers 141a for temporal control of the system, an OSD processor 141b for providing various character information to be displayed on the LCD 145, and a plurality of reservation commands for storing the plurality of reservation commands. Buffer 141c.

The DCD player 100 includes the above components, and a process of transmitting a command from the host 140 to the engine 120 will be described with reference to FIG. 3.

First, the host 140 checks the busy bits contained in the status register 127b of the engine 120 before issuing a command. At this time, when the busy bit is clear, the engine 120 determines that the command can be received. If the busy bit is set, the host 140 sends the busy bit to the engine 120. Clear the busy bit by passing the clear command. In this way, if the busy bit is cleared, the host 140 writes a reset byte count pointer function code to the control register 128a so as to be an address alignment. Host 140 then writes the size of the command packet to byte counter register 128c, then writes a " start command funcrion code " to control register 128a and sets the IRQ bit ( M2). Then, the engine 120 reads the size of the command packet from the byte count register 128c, processes it as an error if the size of the command packet is zero or more than the maximum size, and otherwise receives a command, that is, the command mode. The state transitions to M3.

When the IRQ bit of the control register 128a is set by the host 140, the engine unit 120 reads the byte count register 128c and switches from the idle mode M1 to the command mode M3. Is as follows. When switching from the idle mode M1 to the command mode M3, the engine unit 120 sets the control / data bits of the contents of the status register 128b and read / write (RD / WR). Clear the bit. Next, the engine unit 120 sets the IRQ bit. When the IRQ bit is set by the engine unit 120, the host 140 writes a command packet byte to the data register 128d of the engine unit 120. When the instruction packet byte is written to the data register 128d, the engine unit 120 enters the instruction mode M3 for executing the instruction by clearing the data bit of the status register 128b.

A write or read operation is performed in the data mode M4 in accordance with the contents of the command in the command mode M3. In the case of a read operation, the host 140 reads the data register 128d. On the other hand, in the recording mode, the host 140 writes data to the data register 128d. When data mode M4 is complete | finished, it progresses to status mode M5.

In the status mode M5, the host 140 checks the status of the current engine unit 120 by reading the status register 128b. When the current status is confirmed, the byte counter register 128c and data register 128d are read again to confirm the contents to be transmitted, and then the instruction is terminated and the idle mode M1 is again entered. At this time, if a command is input from the outside, the process is repeated.

On the other hand, if you want to record data to the DCD 110 through the DCD player 100 as described above, the user will control the DCD player 100 through an external device, such an external device, the user selects a source file, In case of receiving the recording command, it should have the function to transmit the control code related to the selected source file and the recording operation.

Hereinafter, when the user issues a recording command from the external device as described above, a method of displaying the data on the DCD 110 so that the user can recognize the situation will be described with reference to the flowchart of FIG. 5.

First, when the DCD 110 is inserted into the DCD player 100, the engine 120 notifies the host 140 of the insertion of the new DCD 110. Then, the host 140 detects the insertion of the disk 110 from the signal transmitted from the engine 120 and requests and obtains information of the file system recorded in the DCD 110 from the engine 120.

As such, when the user selects the source file through the own device 200 having the source file transmission function and the DCD player operation control function while the DCD 110 is inserted into the player 100, and inputs a recording command (S10). In operation S20, information for recording data is acquired from the own device 200 and the DCD player 100. At this time, the own device 200 obtains the data transmission speed and the size information of the source file (S21), and obtains the size information on the recording free space of the DCD mounted in the DCD player 100 (S22). In order to obtain information on the remaining recording amount, the host 140 of the DCD player 100 sums up the sizes of the files recorded in the data recording area 116 from the file system information of the DCD obtained through the engine 120. The difference between the summed result and the total size of the data recording area is calculated. Here, the information obtained from each device 100 or 200 may be displayed so that a user can recognize it. Then, the remaining amount of DCD recording is compared with the size of the source file from the information obtained in the information acquisition process (S20) (S30). As a result of the comparison, if the size of the free disk recording space is larger than the source file, the own device 200 causes the control code related to the selected source file and the recording command to be transmitted (S40). Subsequently, the number of bytes of the actually transmitted source file is continuously added (S51) so that the transmission rate is displayed through the ratio of the actual data transfer amount to the size of the source file and the size of the source file actually transferred (S52). Then, when the result of summing the number of transfer bytes of the source file is equal to the size of the source file (S60), the recording completion is displayed (S70).

On the other hand, if the size of the recording free space of the disk 110 is less than the source file in the comparison process (S30) above, the message indicating that the recording free space of the disk 110 is insufficient is displayed so that the user can recognize (S80). . Here, it may be required to replace the disk 110 or replace the recording surface of the disk 110, and display a message so that selection / confirmation related to performing the recording operation can be selected (S90). At this time, if the user selects OK (S91), the source file can be transmitted to the recording free space, and if canceled is selected (S92), it returns to the initial mode.

According to the recording status display method when performing data recording on the digital converged disk according to the present invention, it is possible to provide the user with the size of the free recording space of the disk in advance when recording data on the disk, The transmission rate can be displayed.

In addition, it is possible to provide the user with decision information on recording / cancellation in the case where the amount of free disk space on the disk is smaller than the size of the source file.

In the above, the display method of the data recording situation has been described as an example of data recording on a digital converged disc. However, the present invention is not limited to the digital converged disc recording method. It is possible to apply the same method to a device designed to control its operation.

The data recording status display method of the present invention as described above enables the user to recognize the recording status through the transmission amount and transmission rate when performing data recording, thereby determining whether or not the normal recording progress is made.

In addition, when the source files to be recorded are not all recorded on the disc, the user may display the disc's recording margin information and a short message in advance, thereby avoiding the inconvenience of the user having to repeat the operation.

Claims (8)

Detecting whether a recording command set for recording a selected source file on a digital convergence disk (DCD) is input from a user; A recording control device for transmitting the selected file and a control code for controlling a recording operation when the recording command is input, and obtaining information related to a recording situation from a DCD player for substantially recording data on a digital convergence disc according to the control code; Doing; Comparing the size of the data recording free space of the DCD with the size of the source file from the recording situation related information; And And displaying a message indicating that the DCD recording free space is insufficient when the size of the free recording space of the DCD is smaller than the size of the source file. The method of claim 1, The information acquisition step related to the recording situation, Acquiring transmission speed and size information of a source file from the recording control device; And And obtaining size information on the recording free space of the DCD from the DCD player. The method of claim 2, The information acquisition step related to the recording situation, And when the size information on the recording free space of the DCD is obtained, displaying the size so that the user can recognize the size of the data recording free space on the disk. The method of claim 1, Transmitting a control code related to the source file and the recording operation to the DCD player if the size of the free recording space in the comparing step is larger than the size of the source file; Summing up one transmission amount of the source file; And And displaying a data transmission amount and a transmission rate through the summed values. The method of claim 1, In the DCD recording free space shortage display step, A disk recording and / or disk surface switching request is further displayed. The method according to claim 1 or 5, In the DCD recording free space shortage display step, And displaying a selection item for confirming whether or not to record the DCD space. An engine for reading and transmitting file system information from the file system recording area of the digital convergence disc; And The size of each file is summed from the file system information transmitted from the engine, and the data recordable remaining amount of the digital converged disc is calculated based on the difference between the sum result and the total size of the data area of the digital converged disc. And a host for transmitting information about the recordable remaining amount to the external device when a recording command is received from the external device through the external device. The method of claim 7, wherein And the host includes a display portion for displaying the recordable remaining amount.

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