KR100307351B1 - Device for playing expandable recording medium and control method therefor - Google Patents

Abstract

PURPOSE: A device for playing an expandable recording medium is provided to be connected with an external device, and to process data applied from the external device, so as to reproduce other data inputted from an external apparatus. CONSTITUTION: An optical disk(21) stores an audio signal or a video signal. A disk controller and optical pickup unit(23) reads data recorded in the optical disk(21), and controls the read data. A data buffer(25) temporarily stores the read data. An audio/video data processor(29) performs decoding processes of audio data and video data, to output the stored data to an external display device(31) from the buffer(25) by reading the data. An MCU1(27) controls the read data to be signal-processed in the audio/video data processor(29), and performs an entire control in accordance with a disk replaying process to display the signal-processed data in the external display device(31).

Description

Expandable recording medium reproducing apparatus and control method thereof.

The present invention relates to an expandable recording medium reproducing apparatus and a control method thereof, and more particularly, to an expandable recording medium reproducing apparatus capable of connecting a recording medium reproducing apparatus to an external device and processing data applied from an external device. It relates to a control method.

As shown in Fig. 1, a conventional optical disc reproducing apparatus is capable of processing data stored in a compact disc or a digital video disc 1 recording an audio signal or a video signal and outputting the data to a television or an audio system.

That is, the conventional optical disc reproducing apparatus has an optical disc 1 storing an audio signal or a video signal, a disc controller and an optical pick-up apparatus for reading data recorded on the optical disc 1 and controlling data reading. 3) and a data buffer 5 for temporarily storing data read from the optical pickup apparatus 3. Accordingly, the optical pickup apparatus reads the data recorded on the disk 1 under the control of the disk controller and transfers the data to the data buffer 5.

The conventional optical disc reproducing apparatus includes an audio / video data processor 9 which decodes audio data and decodes video data so that the data stored in the buffer 5 can be read and displayed on the external display device 11. Include. The audio / video data processor 9 processes a signal compensation and filtering according to analog signal processing of input audio / video data, a demodulation and error compensation according to digital signal processing, and input data. Is MPEG data, signal processing is performed according to a process of decompressing and decoding the original signal.

The microcontrol unit (hereinafter referred to as 'MCU') of the optical disc reproducing apparatus controls the audio / video data processor 9, the optical pickup device 3, and the buffer 5 during the reproducing process of the disc 1. Follow the operation control. That is, the MCU 7 performs a disc playback process such that data read by the optical pickup device 3 is processed by the audio / video data processor 9 and then displayed by the external display device 11. Perform static control accordingly.

The following describes the operation of the conventional optical disc reproducing apparatus having the above configuration.

The conventional optical disc reproducing apparatus shown in the drawing merely performs an operation of reproducing an optical disc or a recording medium mounted in the apparatus. The data read from the disk 1 by the optical pickup device 3 is temporarily stored in the buffer 5, and the audio / video data processor 9 reads the data stored in the buffer 5 to predetermine the predetermined data. The signal is output to the external display device 11 after the signal processing.

At this time, the MCU 7 reads the data recorded on the disk 1 through the optical pickup device 3, and then performs data processing performed by the audio / video data processor 9 and the external display device 11. Control the signal processing until the disc playback signal is displayed.

In this manner, the conventional optical disc reproducing apparatus is configured to reproduce only a disc (recording medium) mounted in the apparatus. Therefore, the MCU which performs overall control of the optical disc reproducing apparatus only needs to be able to control so that no problem occurs due to the reproducing of the mounted disc, and it did not need to have other additional functions.

Therefore, the range of use of the conventional optical disc reproducing apparatus is limited to only the reproducing operation of the disc having the structure of data that can be reproduced in the apparatus. This problem is presented as a problem that does not meet the information needs of consumers in the multimedia age that provides a variety of service information.

Reflecting such a consumer's desire, there is a need to find a way to utilize one recording medium reproducing apparatus from various angles. In addition, in recent years, a lot of data is processed in the general MPEG method. Therefore, if a connection path with an external device is formed in the recording medium reproducing apparatus capable of MPEG processing, MPEG data input from the outside can also be processed.

It is therefore a first object of the present invention to provide an expandable recording medium reproducing apparatus capable of reproducing a recording medium and a control method thereof.

A second object of the present invention is to provide an expandable recording medium reproducing apparatus and a control method thereof, which can connect a recording medium reproducing apparatus and an external device and transmit and receive data.

It is a third object of the present invention to provide an expandable recording medium reproducing apparatus capable of processing data applied from an external device and a control method thereof.

1 is a block diagram of a general optical disc player;

2 is a block diagram of an expandable recording medium reproducing apparatus according to a first embodiment of the present invention;

3 is a block diagram of a recording medium reproducing apparatus connected to a network with an external server according to a second embodiment of the present invention;

4 is an exemplary view illustrating a data communication method between MCUs 1 and MCU 2 in the expandable recording medium reproducing apparatus according to the present invention;

FIG. 5 is a configuration diagram showing details of an input / output state according to a data transmission path for reproducing an optical disc and a data transmission path input from an external device; FIG.

6 is an operation flowchart for determining whether an external device is connected to the expandable recording medium reproducing apparatus according to the present invention;

7 is an operation flowchart for transmitting data of a disk schedule image to an external device in the present invention;

8 is a control flowchart of a disk having a different error correction method (logical recording method) in the present invention;

9 is an operation flowchart of an external data signal processing process performed in a disk playback apparatus networked with an external server of the present invention;

10 is a control process diagram for reading BCA data in which a disc is in a lead-in area in the recording medium reproducing apparatus of the present invention.

An expandable recording medium reproducing apparatus according to the present invention for achieving the above object is a recording medium reproducing apparatus for reproducing data by using an external device capable of processing data in a format other than a standard recording format: A recording medium on which data is recorded in the format of; Pickup means for reading data recorded on the recording medium; Transmission means connected to the external device and controlling transmission of the data to an external device when the data read from the pickup means is not data of a standard recording format; Switching means for selectively outputting data input through said transmission means and data read from said pickup means; And control means for controlling the switching means.

An expandable recording medium reproducing apparatus and a control method thereof according to the present invention are characterized in that the data recorded on the recording medium can be transferred to an external device, or data can be received from the external device to process the data.

Accordingly, the expandable recording medium reproducing apparatus and the control method thereof according to the present invention are capable of providing not only the reproduction of the mounted disc but also the signal processing of the data transmitted from the external device to the user.

In particular, the expandable recording medium reproducing apparatus and control method thereof according to the present invention have recently adopted an MPEG data recording method for an optical disc. It is characterized in that it is used selectively.

Such an expandable recording medium reproducing apparatus and a control method thereof according to the present invention use not only the reproduction of an optical disc but also a variety of latest information provided externally by using a single recording medium reproducing apparatus. It is possible to continuously provide the information to the consumer while expanding the function of the recording medium playback apparatus and at the same time has the effect of satisfying the information needs of the consumer.

Hereinafter, an expandable recording medium reproducing apparatus and a control method thereof according to the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of an expandable recording medium reproducing apparatus according to a first embodiment of the present invention.

The expandable recording medium reproducing apparatus of the present invention according to the first embodiment reads an optical disc 21 storing an audio signal or a video signal, reads data recorded on the optical disc 21, and controls reading of the data. A disk controller and an optical pickup device 23 and a data buffer 25 for temporarily storing data read through the optical pickup device 23. Accordingly, the optical pickup apparatus reads the data recorded on the disk 21 under the control of the disk controller and stores the data in the data buffer 25.

In addition, the expandable recording medium reproducing apparatus of the present invention performs audio / video data decoding and audio data decoding so that the data stored in the buffer 25 can be read and output to the external display device 31. And a processor 29. The audio / video data processor 29 performs a process of signal compensation and filtering according to analog signal processing of input audio / video data, a process of demodulation and error compensation according to digital signal processing, and input data Is MPEG data, signal processing is performed according to a process of decompressing and decoding the original signal.

The first microcontrol unit (hereinafter referred to as 'MCU1') of the recording medium reproducing apparatus controls the audio / video data processor 29, the optical pickup apparatus 23, and the buffer 25 and is mounted in the apparatus. The overall operation control according to the disc 21 playback process is performed. The MCU1 27 controls the audio / video data processor 29 to process data read from the disk 21 through the optical pickup device 23. Then, overall control is performed according to the disc playback process such that the signal processed signal is displayed on the external display device 31.

The extensible recording medium reproducing apparatus of the present invention further includes a signal transmission path for transmitting data read from the disc 21 to an external device. The signal transmission path first includes a configuration for connecting an external device to the recording medium reproducing apparatus of the present invention. Therefore, a data input / output port 39 is provided which is connected to an external device and reads data stored in the data buffer 25 and transmits the data to the external device. And the MCU2 37 while controlling the data transfer operation of the data input / output port 39.

At this time, the MCU1 27 determines the system usage state and the like in the portion where the data read from the disk 21 is transmitted to the external device, and performs an appropriate response in the dialogue with the MCU2 37.

Further, the expandable recording medium reproducing apparatus of the present invention further includes a signal transmission path for inputting data processed by an external device into the recording medium reproducing apparatus. The signal transmission path includes a multiplexer 33 connected to the data input / output port 39. The output of the multiplexer 33 is sent to the audio / video data processor 29. That is, the multiplexer 33 is configured to transmit an output signal of an external device input into the recording medium reproducing apparatus through the data input / output port 39 to the audio / video data processor 29.

At this time, MCU1 (27) determines the system use state when the data from the external device is input to the recording medium playback apparatus. An appropriate signal is applied to the MCU2 37 according to whether the multiplexer 33 and the audio / video data processor 29 are used.

Therefore, the data processed by the external device is selected by the multiplexer 33 and input to the audio / video data processor 29 inside the recording medium reproducing apparatus. After predetermined signal processing is performed, the display is displayed on the external display device 31.

In the scalable recording medium reproducing apparatus of the present invention, although the above description of the path according to the optical disc reproducing process is omitted, the data output from the data buffer 25 is selected by the multiplexer 33 so that audio / video data can be obtained. To the processor 29.

Therefore, the expandable recording medium reproducing apparatus of the present invention allows the multiplexer 33 to select the optical disc 21 reproduction signal or input data from an external device. The control of the multiplexer 33 is performed by the MUC1 27, and the output of the multiplexer 33 is applied to the audio / video data processor 29. Accordingly, the audio / video data processor 29 selectively performs signal processing on the optical disc 21 from a reproduction signal or input data from an external device.

In the above-described expandable recording medium reproducing apparatus, not only can the disk use data in accordance with the type of external device, but also the independent MPEG1, MPEG2 data and audio from an external device other than the disk data. You have the ability to process the data. In addition, even if the physical recording method of the data recorded on the disk is the same, but the logical recording method or copy protection method is different, the external device can solve this problem, thereby extending the function of the recording medium reproducing apparatus. do.

Next, an expandable recording medium reproducing apparatus according to a second embodiment of the present invention will be described.

3 is a block diagram of a recording medium reproducing apparatus connected to a network with an external server according to a second embodiment of the present invention.

In the case of DVD, a next-generation multimedia recording medium, all moving picture data comply with the MPEG standard. Therefore, the general optical disc player has an MPEG decoder and its output device. In addition, in the next generation, it is not preferable that the optical disc reproducing apparatus is limited to a device that simply reproduces a purchased disc. That is, it is necessary to use the optical disc player as a remote controllable disc player that can be connected to a network with an external server so that the disc can be rented / managed remotely.

The disc reproducing apparatus connected to a network with the external server allows the seller to post-manage discs sold to consumers through a network. This system produces a large amount of disks, but allows each disk to have a unique identification number. After providing the disc to consumers at a low price, it manages the play time, player, and play cost of the disc sold through the network.

Such a system eliminates the inconvenience of returning the disk from the consumer's point of view, and also allows those to obtain the disk rental time from the point where they want it to be, as well as to minimize the cost of purchasing the disk. . From the perspective of the producer who produced the disc, it is possible to prevent the borrowed disc from being illegally copied, and to eliminate the difficulty in the case where it is not recovered after the rental time has elapsed. In addition, the disk which is popular among consumers is proposed to accommodate both consumer and producer's demands in various aspects, such as more profits compared to the conventional.

Implementing this system requires the configuration of a modem to connect with the supplier station. Therefore, it can be implemented by appropriate control without a separate additional device by the disk playback device connected to the network and the external server shown as a second embodiment of the present invention.

The structure of the disc reproducing apparatus connected to a network with an external server shown in FIG. 3 implements most of the apparatuses similarly to the expandable recording medium reproducing apparatus shown in FIG. Only the second embodiment of the present invention includes a reproducing and applying unit 55 as a configuration for connecting to an external device.

The regeneration authorization unit 55 has a BCA processor 65 that reads and processes unique information of the disc 41, and reads data stored in the data buffer 45, and decrypts the remote loan only according to whether or not the reproduction is permitted. And a data processor 63 for outputting the data to the ordinary decryption circuit unit as it is, or a modem 57 for transmitting or receiving unique disk information data, a memory 61 for temporarily storing the data, MCU2 59 for controlling the component and informing the MCU1 47 of the reproduction authorization signal.

That is, in the disc reproducing apparatus connected to the network with the external server according to the second embodiment of the present invention, the modem 57 built in the reproducing unit 55 is connected to the business server through the public communication network 71. Thus, the orphan and living information data provided by the business server is inputted to the reproduction authorizing unit 55 through the modem 57. The reproduction applicator 55 stores the data in the memory 61 and controls signal processing for displaying the received data when the multiplexer 53 and the audio / video data processor 29 are available. do.

In addition, among the components included in the reproduction applicator 55, the components necessary for transmitting and receiving data with a business server such as the modem 57, the MCU2 59, and the memory 61 should always be kept in the standby state even in the power-off state. something to do. This is to receive data from the server when the data processing load of the system is at a minimum.

That is, even if the user does not use the disc reproducing apparatus, if a data transmission request is generated in the business server, data reception is made under the control of the MCU2 59 and stored in the memory 61. Then, when the user drives the disk playback device connected to the external server network, the MCU2 (59) is allowed to use the multiplexer 53 and the audio / video data processor 29, MCU1 (47), Control the display of received data.

Next, the playback path of the disc in the disc reproducing apparatus connected to the network with an external server is the same as the expandable recording medium reproducing apparatus of the first embodiment described above, but briefly described as follows.

The data read through the optical pickup device 43 is temporarily stored in the buffer 45. The multiplexer 53 reads the data stored in the buffer 45 and transmits the data to the audio / video data processor 29. The signal processed by the audio / video data processor 29 is displayed on the external display device 51.

In addition, a path for authorizing information recorded on a disc to a server in a disc reproducing apparatus connected to a network external to the server of the present invention is used to obtain a reproduction permission of the mounted disc. In the data transmission path, the disk permission input signal of the disk inputted to the playback authoring unit 55 through the data buffer 45 is transmitted to the business server through the modem 57. When the reproduction permission request signal is input, the server re-applies the reproduction permission signal or the reproduction impossibility signal to the reproduction authorization unit 55 in accordance with the presence or absence of the reproduction permission of the disc. The reproduction applicator 55 outputs the disc permission signal to the MCU1 47 in accordance with the reapply signal at this time. The MCU 1 47 then starts control for playback of the disc.

Next, a path for inputting and displaying the data supplied from the server by the reproduction authorizing unit 55 is made when the server requests data transmission such as orphan life and living information. The data transmission path obtains the permission of MCU1 47 from MCU2 59 to display the received advertisement using multiplexer 53 and audio / video data processor 29.

Next, Figure 4 is an exemplary view illustrating a data communication method between the MCU1, MCU2 in the expandable recording medium playback apparatus according to the present invention.

The following description of the drawings will be described based on the expandable recording medium reproducing apparatus shown in FIG. 2, and the configuration of the drawings described in the drawing can be commonly used in FIG.

As a method for the MCU1 (27) that controls the system as a whole to communicate data with the MCU2 (37) that controls the data communication with the external device, Figure 2 describes a two-wire serial communication method as an embodiment have.

That is, the output port (Tx) of the MCU2 (37) of the input port (Rx) of the MCU1 (27) is connected, the output port (Tx) of the MCU1 (27) is connected to the input port (Rx) of the MCU2 (37) do. Accordingly, the data output from the output port Tx of the MCU1 27 is input to the input port Rx of the MCU2 37, and the data output from the output port Tx of the MCU2 37 is the MCU2 (37). ) Will be input to the input port (Rx). The data transmission at this time will be made of serial data in units of 8 bits or 16 bits.

In addition, the data input and output lines consisting of data units transmitted between the MCU1, MCU2 may be connected, and data may be transmitted by a parallel communication method.

Accordingly, the MCU1 27 and the MCU2 37 of the expandable recording medium reproducing apparatus of the present invention transmit and receive the following data.

The MCU2 37 transmits a data transmission request signal of an external device to the MCU1 27 through an output port Tx. When the MCU1 27 receives a data transmission request signal from an external device through the input port Rx, the MCU1 27 determines a state of use of the system and the like according to the permission of the multiplexer 33 and the audio / video data processor 29. Output the signal.

If a system use permission signal is input to the input port Rx of the MCU2 37, the MCU2 37 inputs data of an external device through the data input / output port 39 to the multiplexer 33. Control to be transmitted.

Next, the data transmitted and received between the MCU 1 47 and the MCU 2 59 in the disk playback apparatus connected to the external server and the network is as follows.

When performing the reproduction of the disc 41, the MCU 1 47 first transmits the disc reproduction permission signal to the MCU 2 59 side. The MCU2 59, which inputs this request signal, transmits a disc reproducing permission or disc reproducing non-playback signal to the MCU1 47 side as a result of data transmission and reception with the business server.

And when there is a data transmission request from the external business server, MCU2 (59) outputs a signal according to whether or not the external data can be received to the MCU1 (47). At this time, the MCU1 47 outputs a signal to allow the MCU2 59 to receive external data when the system is not in use or when the load on the system is minimal even when the system is in use.

In addition, when the MCU2 (59) wants to output data received from an external business server, the MCU2 (59) transmits a signal capable of outputting data to the MCU1 (47). At this time, the MCU 1 47 determines the use state of the multiplexer 53 and the audio / video data processor 49, and permits the display of the data received by the MCU 2 59 when the use of the two components is simple. Outputs a signal.

Next, FIG. 5 is a configuration showing in detail the input / output states of each component according to the data transmission path for optical disc reproduction and the data transmission path from an external device.

In this connection configuration, the audio / video data processor 29 is coupled to the data buffer 25 and the data input / output port 39, and a multiplexer 33 is mounted therebetween. Therefore, the data output from the data buffer 25 or the data output from the data input / output port 39 are selected by the multiplexer 33 and transmitted to the audio / video data processor 29.

The multiplexer 33 transmits the data transmission request signal requested by the audio / video data processor 29 to the data input / output port 39, which is a data transmission port of an external device, or to the data buffer 25. 33a, and a second multiplexer 33b for selecting any one of the data output from the data input / output port 39 or the data buffer 25 and transmitting the selected data to the audio / video data processor 29. do.

The first and second multiplexers 33a and 33b are preferably implemented by one switching element, and have the same operating state. For example, when the first multiplexer 33a is on, the data transmission request signal requested by the audio / video data processor 29 is transmitted to the data transmission port 39. When the first multiplexer 33a is on, the data transmission request is performed when the first multiplexer 33a is on. The signal is sent to the data buffer 25. If necessary, a data transmission request signal can be generated from the external device side to the data buffer 25.

Next, when the second multiplexer 33b is on, data output from the data input / output port 39 is selected and transmitted to the audio / video data processor 29. In the off state, data output from the data buffer 25 is selected and transmitted to the audio / video data processor 29.

In addition, operation control of the multiplexers 33a and 33b is performed by the MCU1 27. In other words, when the disk 21 is reproduced, the MCU 1 controls the operation of the multiplexer to the off state. The data output from the data buffer 25 is then input to the audio / video data processor 29 through the multiplexer 33. In addition, when there is a data transmission request from the external device side, MCU1 (27) controls the operation of the multiplexer to the on state. Then, the data output from the external device side will be input to the audio / video data processor 29 through the data input / output port 39 and the multiplexer 33.

The configuration according to the data transmission path shown in FIG. 5 is a pull-up or pull-down signal applied from the external device side among the signals input to the multiplexers 33a and 33b. Even when the external device is not connected by the PULL-DOWN), the operation of the multiplexers 33a and 33b according to the disc reproducing operation should be implemented without any influence.

Hereinafter, a detailed operation of a disc reproducing apparatus connected to a network with an external server implemented as an embodiment will be described with reference to the accompanying drawings.

6 is an operation flowchart of determining whether or not an external device is connected to the expandable recording medium reproducing apparatus according to the present invention. Since the external device connection determination process according to FIG. 6 is performed between the MCU1 27 and the MCU2 37, the external device connection determination process may be performed as shown in FIG. 4.

After the user powers on the system, the MCU 1 27 sets a time for repeatedly operating the routine of FIG. 6 to confirm the presence of an external device (step 101). In the embodiment of the present invention, the confirmation time is set to a predetermined time (A). In step 101, the time when the external device does not receive a response due to the unprepared state is taken into consideration. In another embodiment, the operation number of the routine may be set without setting the time in step 101.

Then, the output terminal Tx of the MCU1 27 transmits a question that asks which device is the external device 35 connected to the MCU2 37 (step 103). If an external device is connected to the recording medium reproducing apparatus of the present invention, the MCU2 37 should recognize which device the external device is connected to.

The MCU2 37, which has received the question of step 103, sends a predefined definition value for the connected external device to the output terminal Tx, and the MCU2 37 sends the input terminal Rx to the MCU2 37. Input the connected external device definition value (step 105).

If the external device is not ready for signal processing, the MCU2 37 does not recognize the external device. Therefore, if the external device definition value is not input in step 105, the MCU1 27 is connected to the external device. The device 35 is in a state of not being identified as a device (step 107). This may be because the external device is less ready for signal processing or there may be no external device connected.

Accordingly, MCU1 27 subtracts 1 second from the time set in step 101 (step 113) and checks whether the remaining time is 0 seconds (step 111).

If the remaining time in step 111 is 0 seconds, the MCU1 27 determines that there is no connected external device and refers to the data signal processing in the future (step 115). Accordingly, when it is determined that there is no connected external device or the disk does not need the external device in step 115, the MCU1 27 sets the operations of the multiplexers 33a and 33b shown in FIG. 5 to the off state. . This is to prevent unnecessary control operations due to the absence of an external device connected.

When the remaining time in step 111 is not 0 second, the checking process for the external device connected to the MCU2 37 from the MCU1 27 will be repeatedly performed.

When the connected external device is checked in step 107, the MCU1 27 sets a definition value of the external device to continuously recognize which device is the connected external device, and then perform signal processing later (step 109). .

Therefore, according to the operation of FIG. 6, the expandable recording medium reproducing apparatus determines whether there is a connected external device and the type of connected external device when the external device is connected. And it stores information about the type of external device.

In the disc playback apparatus connected to the external server of FIG. 3 via a network, the operation of FIG. 6 does not require a special confirmation process. In this case, only the MCU1 47 and the MCU2 59 of the reproduction applier 55 may be prepared in preparation for the next signal processing.

The following describes a process for minimizing power consumption when power is supplied to the expandable recording medium reproducing apparatus of the present invention.

In the power-on state, power is supplied to most components of the recording medium reproducing apparatus, and in the power-off state, power supply is cut off for most components of the recording medium reproducing apparatus except the MCU1 (27). However, the data input / output port 39 and the MCU2 37, which are components connected to an external device, may be set to a standby state in which signal processing is possible by receiving power by a separate battery power even in a power off state. This is to set up to receive external data in the power-off state when the present invention is a device connected to the network as shown in FIG. In addition, since there is little load in the state where the system is not used, reception of external data is much faster.

In the disc reproducing apparatus connected to the network with the external server proposed as an embodiment of the present invention, the standby state is set as follows.

In the power-off state of the system, separate power is supplied to the modem 57, the MCU 2 59, and the memory 61 of the MCU1 47 and the regeneration authorization unit 55. In this state, when power is supplied to a part of the regeneration authorization unit 55, data is transmitted from the external business server to the regeneration authorization unit 55 via the public communication network 71, under the control of the MCU2 59. 57 receives data, and memory 61 stores the received data.

That is, the data is transmitted from the external business server with minimal configuration in the power-off state of the system, and the load on the system is minimized. Therefore, even if the business server makes a data transmission request at any time, the reproduction authorization unit 55 has a standby state that can be received at any time. At this time, the data stored in the memory 61 is displayed with the permission of the MCU1 47 when the user turns on the power.

The following describes a process of controlling the on / off operation of the system by the MCU2 (37).

When the MCU2 37 and the data input / output port 39 connected to the external device are in a standby state, the MCU1 27 which performs overall control of the recording medium reproducing apparatus at the same time also maintains the standby state. This is necessary in order to recognize the MCU1 27 when the user uses a device such as a remote controller to power it on and to switch the system to an operable state.

Therefore, even when the recording medium reproducing apparatus is in the power-off state, when the external device requests the MCU 2 37 to power on the recording medium reproducing apparatus, the MCU 1 27 accepts it and turns on the operation state of the recording medium reproducing apparatus. Switch to That is, the power supply is controlled to control the power supply to the components. Similarly, the power of the recording medium reproducing apparatus can be turned off at the request of an external device.

Similarly, when the external business server requests the disk reproducing apparatus to be powered on to the MCU2 59 of the reproducing authority 55, the MCU1 47 can supply power to the system to switch the state of the system.

At this time, the business server can transmit the warning data and the like according to the follow-up management of the disc to the user of the disc playback device to recognize the user. In addition, when the user plays an unauthorized disc, it may be forcibly suppressed by turning off the recording medium reproducing apparatus.

Next, FIG. 7 is an operation flowchart for transmitting data of a predetermined disk area to an external device.

When the reproduction data of the disc is to be signal-processed by the external device, the external device reads data of a part of the data recorded on the disc 21 and uses it as basic information to decode the data necessary for reproduction of the disc. In other words, the transmitted data may be, for example, basic information for decrypting the encrypted data.

When it is necessary to transfer data of a part of the mounted disk 21 to an external device, the MCU2 37 sends the MCU 1 27 a predetermined picture or an arbitrary file of the disk 21 requested by the external device. Authorize a command to read and send (step 201).

The MCU1 27 which inputs the command of step 201 controls the pickup device 23 to the location based on the location information or the file name of the predetermined area applied by the MCU2 37. The MCU2 37 may inform the MCU1 27 by using the constant zero-corner sector number of the disk 21 or may notify the user by using an arbitrary file name. When the MCU2 37 presents the area to be read by the arbitrary file name to the MCU1 27, the MCU1 27 extracts the file information recorded on the disk, and then recognizes the start and end sector numbers. The file is read (step 203).

Data read through the optical pickup device 23 in step 203 is input to the data input / output port 39 through the data buffer 25. And it is transmitted to the external device (step 205).

The data transmission in the step 205 is performed until all of the recorded data of the fixed angle picture requested by the MCU2 37 to the MCU1 27 or the data recorded in an arbitrary file are transferred (step 207).

Next, an operation process of FIG. 7 in a disc playback apparatus connected to a network with an external server will be described.

When the user mounts the disk 41 and requests playback, the MCU2 59 of the playback authorization unit 55 authorizes the MCU1 49 to read and transmit data of the disk schedule. At this time, the data required by the MCU2 (59) is a data in a standardized format that only a disk used in a disk playback apparatus connected to an external server and a network is connected. It is used for processing.

Data stored on such a disk is stored after copy protection is performed to prevent illegal copying of the disk. Therefore, data cannot be reproduced unless encryption is decrypted.

Accordingly, the MCU 1 47 reads the data by moving the optical pickup device 43 to a fixed frame of the disk, and the read data is input to the data processor 63 of the reproduction authoring unit 55 through the data buffer 45. . The data processor 63 performs a task of extracting only desired data from the input signal, and stores the extracted data in the memory 61. This stored data is then used to decode the applied disk playback signal. Of course, when performing the signal processing in the data processor 63, it is helped by an external business server.

Thereafter, the data reproduced from the disc 41 is output after decrypted by the data processor 63 on the basis of the decryption information stored in the memory 61 under the control of the MCU2 59 of the reproduction applying unit 55. will be.

Next, Fig. 8 is a control flowchart for reproducing a disc having a different error correction method (logical recording method).

In general, a DVD disc has the same recording method by a physical method. However, producers who produce DVDs and their playback devices can differentiate their products by configuring the DVD's logical recording method or copy protection method differently from other DVD playback devices. This is because a special data recording method suitable for the case where a follow-up management is required for a sold disc is required, and this is also very useful in terms of preventing illegal copying of a DVD.

Therefore, in the scalable recording medium reproducing apparatus of the present invention, when the logical recording method of the DVD is different, the external device can be implemented in a structure that solves this problem.

First, MCU1 (27) checks whether an external device is connected to the system (step 301).

When the external device in step 301 is not connected, a disc having a different logical recording method cannot be reproduced, and only a disc of a standard ECC format controlled by the MCU 1 27 can be reproduced. In this case, therefore, MCU1 27 controls the reproduction of the disc by the standard ECC format (step 309).

On the other hand, even if the control is performed in the standard ECC format under the control of the MCU1 27, playback cannot be performed when the logical recording method of the disc is different. In this case, therefore, the disc cannot be played without the help of an external device. However, since it is determined in step 301 that there is no external device, in this case, the disc playback operation is ended while indicating that the disc cannot be played.

If the MCU1 27 detects that the external device exists in step 301, the MCU1 27 determines whether the mounted disk is a standard ECC format disc or a non-standard ECC format disk (step 303). . In the determination process of step 303, the optical pickup device 23 reads a directory having a different logical recording room from the disk 21 under the control of MCU1 27, and the logical recording method has a different directory due to the existence of another directory. 27 determines whether the disk is a standard ECC format disk or a non-standard ECC format disk.

If it is determined in step 303 that the disc is a standard ECC format, the MCU1 27 controls the playback of the disc in the standard ECC format (step 309). However, when it is determined that the disc is of a non-standard ECC format, the MCU 1 27 controls the optical pickup device 23 to first read an area in which file information of the disc is recorded. Since the area in which this file information is recorded is recorded in a standard ECC format, this information is read to find out another area in which the logical recording method is different (step 305).

After the MCU1 27 recognizes an area in which the logical recording method differs by the step 305, the optical pickup device 23 is driven to read data in another area in which the logical recording method differs. In operation 307, data is converted into a standard ECC format under the control of the MCU2 37.

In the conversion of the ECC data format in step 307, under the control of the MCU1 27, the optical pickup device 23 reads other data of the logical recording method from the disk and stores the data in the data buffer 25. At this time, the data buffer 25 converts the data to a standard recording method under the control of the MCU1 27 which is instructed by the MCU2 37. In general, since the non-standard ECC format recording method is performed by changing the position of inner or outer parity of data, the data position from the data buffer 25 to the standard ECC recording method will be adjusted.

That is, the MCU2 37 receiving information from the external device recognizes the position of inner or outer parity in the non-standard ECC recording format. When data having a non-standard ECC region is input, the position information is informed to the MCU1 27. Therefore, in the case of a disc having a non-standard ECC format, it is impossible to convert the data into the standard ECC format without the help of an external device.

After the data is converted to the standard ECC format in step 307, the disc is reproduced by the standard ECC method under the control of MCU1 27 (step 309).

Next, control of a disc having a different ECC recording method from a disc reproducing apparatus connected to an external server through a network is performed as follows.

The disc reproducing apparatus connected to a network with an external server which is an embodiment of the present invention intends to follow-up management after selling a disc to a consumer. Therefore, a data recording method having a format different from that of the standard ECC is adopted. The data recording method adjusts the position of inner parity and outer parity differently from the standard ECC during data encoding.

Therefore, based on the information obtained from the external server, the MCU2 59 of the reproduction applying unit 55 recognizes the inner parity position information and the outer parity position information of the data whose position is adjusted in encoding fixing. When the disc mounted in the system is not a disc of the standard ECC format, the recognized position information is informed to the MCU1 27.

Then, the MCU1 27 converts the data of the logical recording method stored in the data buffer 25 into another standard recording method by the position information informed by the MCU2 37. Therefore, in a general DVD player, it is impossible to play a disc used in a disc player connected to a server external to the present invention by a network.

When data is recorded by the standard recording method of the mounted disk 41, the MCU1 27 may perform data ECC by itself without receiving separate control of the MCU2 37. In other words, when the mounted disc is using a general standard recording method, the help of the reproduction applying unit 55 is unnecessary.

The following describes the process of performing a reproducing operation with the aid of an external device having a different copy protection method.

When data recorded on the disc 21 mounted on the recording medium reproducing apparatus of the present invention is encrypted for copy protection, there is no method for decrypting the MCU1 27 itself.

In this case, the MCU 1 27 first controls the optical pickup device 23 to read the data recorded on the disk 21, and stores the read data once in the data buffer 25. At the same time, MCU2 37 requests the data buffer 25 to transmit data, and the data buffer 25 outputs the input data to the data input / output port 39.

The data inputted to the data input / output port 39 is transmitted to an external device to perform signal processing for decryption of encryption, and then outputted to the data input / output port 39 again. In this case, the decryption is performed based on the decryption information already read as in the process of FIG.

On the other hand, when the disc 21 needs to be regenerated with the help of the external device, when the MCU 1 27 needs to be regenerated, the MCU 2 37 controls the multiplexers 33a and 33b to the on state. Then, the data decrypted and output by the external device is input to the audio / video data processor 29 through the multiplexer. The audio / video data processor 29 decodes the input data and displays the same on the external display device 31.

The following describes a playback process of a disk on which a copy protection process is performed in a disk playback apparatus connected to a network external to the present invention.

First, the MCU 1 47 controls the multiplexer 53 to be in an on state because the MCU 41 must obtain the help of the reproducing unit 55 to reproduce the disc 41. Then, the multiplexer 53 has a ready state for inputting data to be applied from the data processor 63 of the reproduction applicator 55.

Next, the MCU 1 47 controls the optical pickup device 43 to read the data recorded on the disk 41, and stores the read data in the data buffer 45 once. At the same time, the MCU2 59 of the reproducing unit 55 requests the data buffer 45 to transmit data, and the data buffer 45 outputs the input data to the reproducing unit 55.

The data processor 63 of the reproduction authorizing unit 55 decrypts the cipher of the input data with the help of an external device, and outputs it again. In this case, the output data is transmitted to the audio / video data processor 49 through the multiplexer 53. In this case, the decryption is performed with the help of an external server and the decryption information already read as in the process of FIG.

Therefore, a copy-protected disc cannot be played on a general DVD player, and can only be decrypted with the help of an external server, thereby preventing illegal copying of the disc.

Next, FIG. 9 is a control flowchart of signal processing of MPEG data input from an external device and data that can be accommodated by a recording medium reproducing apparatus in an audio / video data processor.

First, when the external device wants to display data on the external display device 31 of an arbitrary recording medium reproducing apparatus, the MCU1 (37) is asked to inform the MCU1 (27) of the situation according to the system usage state, and the multiplexer ( 33) and the use of audio / video data processor 29. The MCU1 27 controls the operation of the multiplexer 33 to be in an on state and sets the MCU1 27 to a state in which data applied from an external device can be input (operation 401).

In addition, the MCU1 27 checks which standard data is transmitted to the external device through the MCU2 37, and controls the data so that the audio / video data processor 29 can process the data. .

The audio / video data processor 29 transmits a signal requesting data transmission to the multiplexer 33 when the data is processed under the control of the MCU1 27. The multiplexer 33a applies a data transmission request signal of the audio / video data processor 29 to an external device (step 403).

In step 403, a data transmission request signal is input to a data input / output port 39 connected to an external device. When a signal for requesting data transmission is input, the data input / output port 39 outputs data received from an external device (step 405). At this time, the output data is inputted to the audio / video data processor 29 through the multiplexer 33 and the predetermined signal processing is performed and then displayed on the external display device 31.

The MCU1 27 controls the display of the external data input until the data output of the external device is completed (step 407).

The following describes a signal processing procedure of the external data shown in FIG. 9 performed by a disc reproducing apparatus connected to a network with an external server of the present invention.

When the business server intends to provide the consumer with data such as advertisements, life information, and notification information, the business server requests the data transmission to the MCU2 59 of the reproduction authorization unit 55 through the public communication network 71.

The MCU2 59 determines the current usage state of the system, and permits data transmission to the business server when the load of the system is small. If the recording medium reproducing apparatus is playing the disc or performing other additional functions, it is determined that data reception is impossible. At this time, since the system is in a state where a lot of load is applied, power consumption is increased and operation is also slowed, which may cause reception failure.

When the MCU2 59 permits the transmission of data, the business server transmits advertisements, life information, warnings and notification information through the public communication network 71, and the modem 57 of the reproduction authorization unit 55 transmits data. Receive The received data is stored in the memory 61 under the control of the MCU2 59. The data is received until the data transfer is completed in the business server.

The received data is stored in the memory 61 and is output when the multiplexer 53 and the audio / video data processor 49 of the recording medium reproducing apparatus are available for display on the external display device 51.

At this time, most of the data transmitted from the business server is MPEG processed data. In addition, any data that can be processed by the audio / video data processor 49 may be displayed on the external display device 51.

Next, Fig. 10 is a control process diagram for reading BCA data in the lead-in area of the disc.

In general, in the DVD structure, when a data reproduction request is applied, the optical pickup device is first moved to a video manager area included in the data recording area of the disc. The video manager area is read through the optical pickup device, and the positional information of the desired video title is recognized from the read data to perform signal reproduction.

That is, in the general DVD data structure, the data in the data recording area is read at the same time as the playback operation of the disc is started. In addition, the data recording area does not contain the unique information of the DVD for managing the disc. This is because the general DVD did not require disc management by individual unique information of the disc.

However, when the playback request is input, the expandable recording medium reproducing apparatus of the present invention first reads the unique identification information of each disc, and performs management according to whether the disc is allowed to be reproduced using the read unique identification information. .

That is, when the disc play request is input by the external key input, the MCU 1 27 moves the optical pickup device 23 to the portion where the unique time information of the disc 21 is recorded (step 501).

And MCU1 (27) performs a control to the disk controller 23 to read the unique identification information of the disk 21 from the optical pickup device. This is because the unique identification information can be read only if the rotation of the disc is controlled by a method different from the servo control performed during the disc reproducing operation. That is, the disk controller 23 controls the method of rotating the disk 21 (step 503).

The optical pickup device 23 is moved to the position where the unique identification information recorded on the disc 21 can be read and at the same time, the optical pickup device 23 is moved to the position where the unique identification information is recorded. Through this, it is possible to read the unique identification information of the disc 21 (step 505).

The unique identification information of the read disk is transmitted to the external device through the data buffer 25. At this time, the external device performs control according to the management of the disc 21 based on the input unique identification information.

Next, a description will be given of a control process for reading the BCA 'in the lead-in area of the disc in the disc reproducing apparatus connected to the network with an external server as shown in the embodiment of the present invention.

In a disc reproducing apparatus connected to a network with an external server of the present invention, unique identification information for each disc is recorded in a specific area of the disc. This unique identification information is recorded in the form of a bar code in the lead-in area of the disc. Therefore, when a playback request is input, the disc playback device connected to the external server and network first reads the unique identification information by moving the optical pickup device to the area of the disc which records the unique identification information for each disc. Based on the unique identification information, it is judged whether or not to play the mounted disc.

Since the unique identification information recorded in the lead-in area of the disc is assigned as a unique number which is not duplicated for all the discs, even discs of the same title have different unique identification information.

The unique identification information is recognized by servo control and decoding by a special method at the time of reproduction, and the configuration of the unique number recognition device in the disc reproducing apparatus connected to the external server and the network is as follows.

A pickup servo for moving the pickup to the BCA area of the disc 41 and a pickup device 43 for reading data, and a BCA processor 65 for decoding BCA data from the data read from the pickup device 43.

Normally, servo control proceeds from the start of the data area, i.e. outside the lead-in area, to the outer circumference along the track. However, in the present invention, since the BCA area is located in the lead-in area, a separate servo control for moving the pickup device 43 to the inside of the lead-in area is required.

The signal read out from the pickup device 43 is subjected to appropriate RF processing such as equalization and filtering in the RF processing circuit. Since the processed signal has a change in amplitude of a periodic RF signal corresponding to the recorded data according to the characteristics of the BCA information, the signal can be detected and the recorded data can be localized to decode the recorded information.

The BCA processor 65 performs error correction for decoding and reproduces the unique identification information recorded on the disk.

In this way, the disc specific information extracted from the reproduction authorizing unit 55 is transmitted to the business server through the modem 57 and the public communication network 71, and the business server is based on the input data and according to whether or not the reproduction permission is given. The signal is output again to the reproduction application unit 55. The regeneration authorization unit 55 applies the input regeneration permission signal to the MCU1 47 to perform appropriate control accordingly.

The expandable recording medium reproducing apparatus and control method thereof according to the present invention described above can be reproduced by using the recording medium reproducing apparatus in addition to data read from a standard DVD through expansion to the device. There is this. Further, if the connected external device is a part for connecting with a personal computer, there is an advantage that the recording medium reproducing apparatus of the present invention can be used like a general DVD-ROM drive. In addition, the external device connected to the present invention can display audio / video data using an audio / video data processor of a recording medium reproducing apparatus even without a separate audio / video data processor.

Claims (9)

A recording medium reproducing apparatus for reproducing data by using an external device capable of processing data in a format other than the standard recording format, comprising: pickup means for reading data recorded on the recording medium; Transmission means for controlling transmission of the data to an external device when the external device is connected and the data read from the pickup means is not data in a standard recording format; Switching means for selectively outputting data input through said transmission means and data read from said pickup means; And control means for controlling said switching means. An apparatus according to claim 1, further comprising signal processing means for performing signal processing for displaying an output signal of said switching means. The apparatus according to claim 2, wherein said control means controls said switching means and / or signal processing means at the request of an external device, and controls signal processing of external data. 2. The apparatus of claim 1, wherein the transmitting means comprises: sub-control means for determining whether to transmit external data under control of the control means; And a data input / output port for performing data transfer under the control of the sub control means. 5. The apparatus according to claim 4, wherein said transmission means maintains a standby state by a battery power supply at power off. An expandable recording medium reproducing apparatus characterized by reproducing data by using an external device, comprising: transmitting means connected to the external device and transmitting data; Pickup means for reading out data recorded on the recording medium; Reproduction applying means for performing signal processing according to a reproduction permission of the recording medium under the control of the external device, and controlling data transmission of the transmission means; Switching means for selectively outputting external data input through the transmission means and data read from the pickup means; And control means for controlling said switching means. Checking whether there is a connected external device; Determining whether the data read from the recording medium is data of a standard format; When there is a connected external device and the data is not in standard format, transmitting the data read from the recording medium to the external device to perform decoding; Selectively permitting data read from the recording medium or data transfer from an external device; And transmitting the selected data. 8. The method according to claim 7, wherein the step of checking whether the external device is connected is performed only for a predetermined time. 8. The method according to claim 7, wherein the data output from the external device is MPEG data.

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