KR100563666B1 - Method for providing attribute information of disc recording medium and disc player using digital interface, and apparatus and method for controlling it accordingly - Google Patents

Abstract

The present invention provides a method for providing attribute information of a disc recording medium and a disc player using a digital interface for remotely controlling operations of a disc and a disc player such as a digital versatile disc using a digital interface such as IEEE 1394. The present invention relates to an apparatus and a method for controlling an operation, comprising: transmitting attribute information of a disc and a disc player such as a DVD to a peripheral device connected through a digital interface, and based on the transmitted attribute information, a user input key The operation control commands of the disc and the disc player corresponding to the (Key) are transmitted through the digital interface, or the operation of the disc and the disc player corresponding to the input key is impossible. By selectively outputting messages, the digital interface Commands for instructing operations not provided in the disc player and the disc connected are unnecessarily transmitted to the disc player, resulting in an operation error of the disc player, or in response to no response / operation of the disc player. Accordingly, it is a very useful invention that can prevent the user from repeatedly entering the corresponding key (Key).

DVD, DVD Player, Attribute Information, Descriptor, Digital Interface

Description

Method for providing information on a disc recording medium and disc player using a digital interface, and an operation control device and method according thereto {Method for providing information on description of disc or disc player and controlling method and apparatus based on the description information}

1 is a block diagram illustrating a configuration of an optical disc device and a digital video display device to which the attribute information providing method of the disc recording medium and the disc player using the digital interface according to the present invention and the operation control device and method according thereto are applied.

2 is a flowchart illustrating an operation of transmitting attribute information of a disc recording medium and a disc player using a digital interface according to the present invention;

3 is a flowchart illustrating an operation of receiving attribute information of a disc recording medium and a disc player using a digital interface according to the present invention;

4 is a flowchart illustrating an operation control process of a disc recording medium and a disc player using a digital interface according to the present invention;

5 illustrates an error guide message screen displayed on a screen in the digital video display device according to the present invention.

※ Explanation of code for main part of drawing

1: Optical disc 2: Optical pickup (P / U)

3: demodulation unit 4: scrambler

5: Selective output unit 6: Data separation unit

7,8,9: Decoder 10: Presentation Engine

11,12: D / A converter 13,22: Microcomputer

14 PS / TS converter 15,21 IEEE 1394 interface

16,29: memory 23: Demux

24,25: Decoder 26,27: D / A Converter

28: on-screen display unit 30: synthesizer

The present invention provides a method for providing attribute information of a disc recording medium and a disc player using a digital interface for remotely controlling operations of a disc and a disc player such as a digital versatile disc using a digital interface such as IEEE 1394. The present invention relates to an operation control apparatus and method.

The standardization of the recently developed disc recording media, especially DVD (DVD: Digital Versatile Disc) is being quickly carried out among related companies, and the spread of DVD as a multi-functional video disc recording media will be widely spread in the future. It is anticipated, and furthermore, a digital video display device capable of displaying a high-definition image, for example, a digital television (D-TV), which can more clearly display a digital high-definition image of a digital satellite broadcast or the DVD. TV is expected to spread widely.

Accordingly, it is expected that the use of a DVD player or a DVD recorder / player connected to the D-TV to play the DVD will increase rapidly, and a digital interface such as IEEE 1394 for data transmission between the devices is expected to increase rapidly. The adoption of is confirmed.

On the other hand, in the DVD player, an MPEG data type digital data stream, in particular, a program stream (PS) is divided into presentation data (PT) and navigation data (NV). The presentation data PT is output as video and audio signals, and the navigation data NV is used for controlling the playback operation of the DVD player.

However, in the D-TV, unlike the DVD player, a transport stream (TS) of the MPEG data digital data stream is processed into presentation data (PT) and output as video and audio signals. Therefore, the program stream PS received from the DVD player is converted into a transport stream TS for signal processing, or the program stream PS is converted into a transport stream TS in the DVD player, and D- Should be sent to the TV.

As described above, in the DVD player, a digital data stream read from a disc recording medium such as a DVD is transmitted to the D-TV through a digital interface such as IEEE 1394, and in the D-TV, it is transmitted from a DVD player through the digital interface. The digital data stream is output as a high-definition digital video screen and high-quality digital audio. The operation of the DVD player can be controlled remotely on a D-TV connected through a digital interface such as IEEE 1394. do.

However, in the case of DVD, which is a multi-functional movie disc recording medium, multiple titles can be recorded and stored on one disc, and various resolutions, number of audio channels, and display mode for each title can be recorded. Example: Additional data to support 4: 3, 16: 9, Pan-scan, letter box, etc., and copy-right information on whether or not to duplicate the disc, disc type that indicates it is a double-sided or single-sided disc ( Type) information and the like are recorded and stored together. In addition, various information and data for providing new functions and additional information are additionally recorded, so that each DVD has various characteristics.

As a result, recently developed DVD players are equipped with new configurations and functions so that various playback operations using the plurality of titles, additional data, and information recorded on the DVD, and data processing thereof are all performed.

However, in the D-TV connected to the DVD player via a digital interface such as IEEE 1394, as well as the recording characteristics of the DVD in which various additional information and data are additionally recorded, as well as the data processing capability of the DVD player and Since the operating characteristics are not accurately known, when a user key corresponding to an operation not provided by the DVD or DVD player is inputted, a corresponding control signal, that is, a command, is applied to the DVD through the digital interface. Will be sent to the player.

That is, a command for instructing operations not provided in the DVD player and the DVD connected through the digital interface is unnecessarily transmitted to the DVD player, resulting in an operation error of the DVD player, There was a problem that the user repeatedly inputs the corresponding key according to the response / action.

Accordingly, the present invention was created to solve the above problems, and transmits attribute information of a disc and a disc player such as a DVD to a peripheral device connected through a digital interface, and transmits the attribute information to the transmitted attribute information. On the basis of the above, providing the attribute information of the disc recording medium and the disc player using the digital interface to selectively transmit the operation control commands of the disc and the disc player corresponding to the input key of the user through the digital interface. It is an object of the present invention to provide a method and an operation control apparatus and method accordingly.

According to an aspect of the present invention, there is provided a method of controlling an operation of a disc recording medium and a disc player using a digital interface, the method comprising: receiving an attribute information transmission request command through a digital interface; Reading out attribute information related to recording / reproducing of the disc recording medium or disc player corresponding to the received request command; And transmitting the read attribute information to the corresponding device that has transmitted the transmission request command through the digital interface.

In addition, the operation control method of the disc recording medium and disc player using the digital interface according to the present invention, step 1 of receiving and storing the attribute information of the disc recording medium or disc player through the digital interface; And selectively outputting and transmitting an operation control command of a disc recording medium or a disc player corresponding to an external key input based on the stored attribute information.

In addition, the operation control apparatus of the disc recording medium and disc player using the digital interface according to the present invention comprises: storage means for storing attribute information of the disc player or disc recording medium connected and connected via the digital interface; Control means for selectively outputting a disc reproducing operation control command corresponding to an external input key, based on the stored attribute information; And transmitting means for transmitting the output disc reproduction operation control command to a disc player connected and connected through the digital interface.

The method and apparatus and method for providing attribute information of a disc recording medium and a disc player using a digital interface according to the present invention as described above are provided in a disc player for reproducing a disc such as a DVD. And peripheral information connected to and connected through a digital interface such as IEEE 1394, for example, to a digital video display device, while the digital video display device receives property information transmitted through the digital interface. And a validity of a user input key for requesting operation control of the disc and the disc player based on the stored attribute information, and a command corresponding to the user input key according to the determination result. Disc playback via the digital interface A command corresponding to an operation that is not provided by the disc and the disc player by outputting a message to or outputting a message indicating that the operation of the disc and the disc player corresponding to the input key is impossible. Unnecessary transmission is prevented in advance, and the guidance message accordingly is outputted so that the user does not repeatedly input the corresponding key.

Hereinafter, a preferred embodiment of a method for providing attribute information of a disc recording medium and a disc player using a digital interface according to the present invention and an apparatus and method for controlling the same according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a block diagram of an optical disc apparatus and a digital image display apparatus to which an attribute information providing method of a disc recording medium and a disc player using a digital interface according to the present invention, and an operation control apparatus and method thereof are applied. An example is a DVD player and a D-TV.

1 shows an optical disk 1 such as a DVD; An optical pickup (P / U) 2 for reading data recorded on the optical disc 1; A demodulator (3) for demodulating and error correcting the read data; A scrambler or copy protect system (CSS) 4 for adding a copy protection code to the output data of the demodulator 3; A selection output unit (5) for selecting an output path of data to which the copy protection code is added; The data stream input from the selective output unit 5, that is, the program stream, is divided into presentation data PT and navigation data NV, and the divided presentation data PT is again divided into audio, video, and sub-pictures. A data separator 6 for separating and outputting picture data; Respective decoders (7, 8, 9) for decoding said separated audio, video and sub-picture data; A presentation engine (Engine) 10 for combining the decoded audio, video and sub-picture data to output a digital audio signal and a video signal; D / A converters 11 and 12 converting the digital audio signal and the video signal into analog video and audio signals, respectively; The microcomputer controlling the reading operation of the optical disc 1 to receive the navigation data NV separated from the data separator 6 and outputted separately and to perform an operation corresponding to a user's key input ( Micom) 13; A memory 16 for storing data necessary for the control operation of the microcomputer 13 and attribute information of the DVD player; A PS / TS converter 14 for converting output data output from the selective output unit 5, that is, program stream PS into a transport stream TS; A DVD player S1 comprising an IEEE 1394 interface unit 15 for transmitting the converted transport stream TS;

An IEEE 1394 interface unit 21 for receiving a data stream transmitted from the DVD player S1, that is, a transport stream TS; A demux 23 for demuxing and transporting the transport stream TS received from the interface unit 21 into audio and video data; Decoders 24 and 25 for decoding the separated / output audio and video data and outputting them as digital audio and video signals, respectively; D / A converters (26, 27) for converting / outputting the digital audio and video signals into analog audio and video signals; A microcomputer 22 outputting a control signal in response to a user's key input; An on-screen display (OSD) 28 for outputting a guide message as a text image according to the control signal; A synthesizer 30 for synthesizing the text image and the video signal; A D-TV (S2) configured to include a memory 29 for storing data necessary for outputting the control signal of the microcomputer 22;

 It is shown that the user key input means 100 for controlling the operation of the DVD player (S1) and the D-TV (S2), for reference, the PS / TS converter 14 of the DVD player (S1) The D-TV (S2) may be provided in the alternative, or alternatively configured as an external connection configuration means of the adapter (Adapter) type.

Prior to the description of the operation of the DVD player S1 and the D-TV S2 configured as described above, the MPEG data format of the digital data stream, that is, the data formats of the program stream PS and the transport stream TS is described. Briefly explain the differences.

The program stream PS is a data stream composed of a plurality of packets in which audio data, video data, and additional information data, which are digital data, is one packet. The packet has a variable length. The size of the data stream can be changed according to the size of the data. Therefore, the size of each packet is not always the same. For example, if the size of the data packet is set to 2Kbyte, and the arbitrary data size exceeds the 2Kbyte, a part of the arbitrary data can be continuously inserted into the next subsequent packet, and the arbitrary data size can also be inserted. If less than 2Kbyte, a padding area may be created in the extra portion of the packet, and another arbitrary data may be inserted and used according to the size of 2Kbyte.

On the other hand, the transport stream TS has a fixed size of a data stream. For example, an audio packet 188 bytes, a video packet 188 bytes, and content can be determined. Twelve packets consisting of ten packets, one audio packet, and one additional information data packet are configured and used as a group.

Therefore, in order to convert the program stream PS into the transport stream TS, the size of the program stream PS packet is adjusted to the size of the transport stream TS packet, for example, 188 bytes, and is sequentially divided. It should be changed and configured on the time axis. At this time, various necessary headers are added and converted.

Hereinafter, operations of the DVD player S1 and the D-TV S2 will be described. As shown in FIG. 1, a program stream PS that is first read and processed from the optical disc 1 is the data separator. (Parser) 6 outputs audio, video, and sub-picture data separately, and outputs audio and video signals by the decoders 7, 8, 9, the presentation engine 10, and the D / A converter. On the other hand, when the program stream PS is input to the converter 14 by the selection output unit 5, the converter 14 decodes the input program stream PS to obtain a stream identifier Stream_ID. Navigation data NV included in the program stream PS, and in particular, presentation specification PT corresponding to program specification information (PSI), information for controlling program reproduction, and audio and video signals. System clock day The system clock data (SCD).

The separated program specification information (PSI) and system clock data (SCD) are used as information and a system clock for controlling program reproduction, and the presentation data (PT) is connected to the digital interface (D-TV). The S2 is converted into a transport stream TS capable of signal processing, and transmitted to the D-TV S2.

Accordingly, the D-TV (S2) is to output a high-quality digital video screen and audio, while the user key input means 100, for example, a remote control or a key provided in the D-TV (S2) If the user input key selected by the button is a key for controlling the playback operation of the DVD player S1, the corresponding command is sent to the IEEE 1394 interface unit 15, 21. Through the transmission or output to the DVD player (S1) or by operating the on-screen display unit 28, a guide message indicating that the operation of the DVD player corresponding to the user input key (Key) is impossible to perform on the video screen Overlaid display, the operation of transmitting a command corresponding to the user input key or displaying a guide message as described above will be described in detail with reference to the accompanying drawings.

FIG. 2 is a flowchart showing the operation of the DVD player S1 to which the method for providing attribute information of the disc recording medium and the disc player using the digital interface according to the present invention is applied. In a state of being connected and connected to the D-TV S2 through a digital interface such as S10, a command transmitted from the D-TV S2, in particular, a DVD player S1 or an optical disc inserted into and inserted into the DVD player 1. That is, when receiving a command for requesting the attribution information of the DVD (S11), the microcomputer 13 receives the information on the function and operation characteristics of the DVD player, for example, the DVD player (S1). The recording characteristics of the DVD, which is a command for requesting attribute information of the DVD player, such as the number of output ports, the playable disc type and the interface type, or an optical disc 1 inserted into the DVD player. For example, the number of titles recorded on the DVD, the resolutions supported by each title, the number of audio channels, the display mode and the copyright-related information. It is checked whether it is a command for requesting attribute information about the data (S12).

As a result of the check, when the received command is a command for requesting the attribute information of the DVD player S1, the descriptor information is retrieved and read from the memory 16 (Descriptor), which is file information which is all recorded and managed. On the other hand, if the received command is a command for requesting the attribute information of the DVD disc 1, the descriptor information of the DVD 1 is recorded in the descriptor information, which is file information in which all the information is recorded and managed. The search is read out from the area (S14).

For reference, descriptor information for recording and managing attribute information of the DVD player S1 is recorded and managed on a ROM memory which is a nonvolatile memory. The ROM memory is a separate memory (as shown in FIG. 1). 16) or together with the microcomputer 13, and the descriptor information stored in the navigation information recording area of the DVD 1 is read out when inserted into the DVD player S1. Since the memory 16 may already be recorded and stored, in this case, the descriptor information of the DVD 1 stored in the memory 16 is searched and read.

On the other hand, as described above, each descriptor information read from the memory 16 or the DVD 1 is transmitted through a transport channel of the IEEE 1394 interface unit 15, in particular through an asynchronous transport channel. After transmission to the D-TV (S2), it is determined whether the transmission is completed according to the response signal received from the D-TV (S2) (S16) to repeat or terminate the transmission operation.

3 is a flowchart illustrating an operation control method of a disc recording medium and a disc player using a digital interface according to the present invention, in particular, the D-TV S2. Device connected to the IEEE 1394 interface by a user's selection or a bus reset on the digital interface in a state in which S) is connected and connected to the DVD player S1 through a digital interface such as IEEE 1394. That is, a command for requesting the attribute information of the DVD which is the DVD player S1 or the optical disc 1 inserted into the DVD player is transmitted (S21), and in response thereto, the attribute information transmitted from the DVD player S1 is received. When the microcomputer 22 receives the attribute information, that is, the descriptor information is descriptor information on the function and operation characteristics of the DVD player, or the optical receiver is inserted into the DVD player. It is disk 1 is a DVD of the recording characteristic and the descriptor information is confirmed (S22) for the information.

As a result of the checking, when the received descriptor information is descriptor information corresponding to the attribute of the DVD player S1, the descriptor information is analyzed and the output port number of the DVD player S1, the playable disc type and the interface type, and the like. The attribute of the DVD player is recognized and stored and managed on the memory 29 (S23). If the received descriptor information is descriptor information corresponding to the attribute of the DVD 1, it is analyzed and the DVD (1) is analyzed. ) Recognize attributes of the number of recorded titles, resolutions supported by each title, number of audio channels, display mode and copyright-related information, and memory ( 29, the storage management (S24).

Thereafter, the A / V output mode of the D-TV (S2) is reset to the A / V output mode corresponding to the attributes of the stored DVD and DVD player (S25), and the DVD is received through a digital interface such as IEEE 1394. A video screen display and an audio output operation suitable for the data stream of the player S1 are performed.

On the other hand, Figure 4 shows an operation flowchart on the D-TV (S2) to which the operation control method of the disc recording medium and disc player using the digital interface according to the present invention is applied, the D-TV (S2) Is connected to the DVd player S1 via a digital interface such as IEEE 1394, in step S30, a key input selected by the user, in particular, the DVD 1 or the DVD player S1 is remotely connected through the digital interface. When an operation control key for controlling the operation is received (S31), the microcomputer 22 stores the attribute information of the DVD 1 or the DVD player S1, which is stored and managed as described above with reference to FIG. Search and read (S32) to determine whether or not the validity of the input operation control key (S33), which is described as an example for the validity determination operation as follows.

That is, when the user selects and inputs a corresponding key to play the eleventh title of the title of the DVD 1 inserted into the DVD player S1, the microcomputer 22 of the D-TV S2 is input. Retrieves and reads attribute information of the DVD 1 separately stored in the memory 29 to confirm the total number of titles stored in the DVD 1, and at least the total number of titles stored in the DVD 1 is confirmed. When there are 11 or more, it is determined that the corresponding corresponding key is valid, and a corresponding command, that is, a command for requesting the 11th title playback operation of the DVD 1, is transmitted to the DVD player S1. (S34).

On the other hand, if the total number of titles recorded on the DVD 1 is less than 11, it is determined that the input corresponding key is not valid, and the command is sent to the DVD player S1 as described above. Instead of transmitting, an error guide message corresponding thereto is output (S35).

The error guidance message output is performed by the microcomputer 22 controlling the operation of the on-screen display unit 28 illustrated in FIG. 1. For example, as illustrated in FIG. 5, the microcomputer 22 overlaps the main video screen. The sub-picture screen, in particular, may be displayed as a text image. In the above-described embodiment, a text image indicating a key input error and a last title number (Last Title #) that can be played on the DVD 1 can be displayed. By simultaneously displaying the text image guiding No), the corresponding key input by the user is not valid, and the title number which can be played back on the DVD 1 can be displayed simultaneously.

According to the present invention, a method for providing attribute information of a disc recording medium and a disc player using the digital interface, and an apparatus and method for controlling the same according to the present invention, may include attribute information of a disc and a disc player such as a DVD. While transmitting to the peripheral device connected through the connection, on the basis of the transmitted attribute information, the operation control commands of the disc and the disc player corresponding to the user's input key (Key) to be transmitted through the digital interface, Or selectively outputting a message indicating that the operation of the disc and the disc player corresponding to the input key is impossible, thereby instructing an operation not provided in the disc player and the disc connected and connected through the digital interface. Command unnecessarily on the disk Very useful to prevent the user from repeatedly inputting the corresponding key due to the disc player's operation error or the disc player's no response / action. It is an invention.

Claims (7)

A method for providing recording / playback information of a disc recording medium or disc player, Receiving an attribute information transmission request command through a digital interface; Reading out attribute information related to recording / reproducing of the disc recording medium or disc player corresponding to the received request command; And And transmitting the read attribute information to the corresponding device that has transmitted the transfer request command through the digital interface. The method of claim 1, The attribute information of the disc recording medium is descriptor information recorded and stored on the disc recording medium. The method of controlling a disc recording medium and a disc player using a digital interface. The method of claim 1, The attribute information of the disc player is descriptor information recorded and stored on a memory of the disc player. The method of controlling a disc recording medium and a disc player using a digital interface. Receiving and storing attribute information of the disc recording medium or the disc player through the digital interface; And And a step of selectively outputting and transmitting an operation control command of the disc recording medium or the disc player corresponding to the external key input based on the stored attribute information. Operation control method. The method of claim 4, wherein And if the operation control command of the disc recording medium or disc player corresponding to the external key input is not transmitted based on the stored attribute information, further comprising: displaying and outputting a corresponding message. Operation control method of a disc recording medium and a disc player using an interface. Storage means for storing attribute information of the disc player or disc recording medium connected and connected through the digital interface; Control means for selectively outputting a disc reproducing operation control command corresponding to an external input key, based on the stored attribute information; And And a transmitting means for transmitting the output disc reproducing operation control command to a disc player connected and connected through the digital interface. The method of claim 6, On the basis of the stored attribute information, if the disc playback operation control command corresponding to the external input key is not transmitted, display means for displaying a message corresponding to the disk recording using a digital interface, characterized in that further configured Motion control device for media and disc players.

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