KR0160654B1 - Compact disk-interactive/full motion video - Google Patents

Abstract

The present invention relates to an interactive disk player having a full motion video function (Compact Disk-Interactive / Full Motion Video: CD-I / FMV) and a driving method, comprising a plurality of deck mechanisms for driving a compact disk. The above-described discs can be sequentially played without a separate operation during playback, and data can be read from two discs at the same time by one application program and played simultaneously.

Description

Interactive disc player with full motion video and driving method

1 is a block diagram of an interactive disc player having a conventional full motion video function.

2 is a block diagram of one preferred embodiment of an interactive disc player having a full motion video function according to the present invention.

3 is a flowchart according to a driving method of a preferred embodiment of an interactive disc player having a full motion video function according to the present invention.

4 is a block diagram of another preferred embodiment of an interactive disc flare having a full motion video function according to the present invention.

5 is a diagram for explaining the configuration of a command and status package of an interactive disc player having a full motion video function according to the present invention;

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and an interactive disc player having a full motion video function for convenience of a user using a double deck (Compact Disk-Interactive / Full Motion Video CD-I / FMV: hereinafter, CD-I / FMV) and a driving method.

In general, a CD-I / FMV player is a CD-I player that extends the functionality of a CD-I player to realize full motion video. The CD-I player uses a 12cm disc, which is a prescribed format for storing high-quality audio, moving pictures, still pictures, text, and data. The interactive disc player also plays discs in connection with color television sets. And, using a pointing device such as a mouse, the user can randomly read the contents of the disc while talking to the player as if reading a book.

Such interactive disk player basically consists of CD-RTOS (CD-Real Time Operating System) which is in charge of application program, device allocation and user program control, and driving devices such as CDP or video device. .

CD-I / FMV players, however, can play most movies on a single disc, with up to 74 minutes of playback of audio and video compressed by the BASE CASE feature and the Motion Picture Expert Group (MPEG) regulations. There is a problem that cannot be played. Thus, a typical movie is expected to consist of two or more discs. In particular, one application program must be included in one disc in the case of the base at present, and there is a problem in that it is impossible to configure a title using two discs simultaneously.

Figure 1 shows a block diagram of an interactive disc player with a conventional full motion video function.

1, a main processor 10 for executing programs such as compact disc real-time processing and application programs, a clock generator 20 for generating a clock used in a system, a program memory 30 for storing a system program, Data memory 31 for storing application programs and user files, etc., System memory 32 for storing application programs and audio and video data from disks, Data controller 40 for processing data from disks, CD- When decoding ROM and CD-I data, the decoder buffer 50 serving as an external buffer, the driver controller 60 controlling the compact disc driver 61, and the decoding of Moving Picture Experts Group (MPEG) video / audio data Video decoder 70, MPEG decoder 80 for controlling and decoding MPEG audio / video data, and buffering at the time of data decoding of the MPEG controller 80. 16 bit, video D / A converter 90 for converting the digital RGB signal output from the MPEG buffer 81, the video decoder 70 and the digital RGB signal output from the MPEG decoder 80 into an analog RGB signal. And an audio D / A converter 91 for converting the PCM audio signal into an analog audio signal.

The operation of the interactive disc player with the conventional full motion video function according to the above configuration will be described.

The main processor 10 executes software such as a CD-RTOS and an application program stored on the program memory 30. In this case, the user may store data files such as a CD-I system parameter file and a user file so that an application or a user may store data or refer to necessary data using the program memory 30. In addition, the system memory 32 functions to store application programs, audio, video data, and the like read from the disc. The data controller 40 stores the CD-I data stream read from the disc in the decoder buffer 50, decodes the CD-I sector and transmits the CD-I sector to the system memory 32 at the request of the main processor 10. In addition, there is a function for the interface between the main processor 10 and the driver controller 60 can send and receive commands and status, and process ADPCM audio data. The processed audio data is decoded by the MPEG decoder 80 and converted into an analog signal by the audio D / A converter 91 and output.

The driver controller 60 controls the compact disc driver 61 to read data on the disc and exchange various data with the main processor 10. That is, when an application program requests to read a CD data sector at a specific position on a disk, the compact disk driver 61 controls the read data and transfers the data to the main processor 10. The video decoder 70 decodes the video signal, converts the video signal into a digital R.G.B signal, and outputs the same, thereby allowing the main processor 10 to access the system memory 32.

Accordingly, when the user first loads the disc in the player and drives it, the main processor 10 reads the label of the disc to determine the type of the mounted disc. If the disc label exists, it is not a CD-DA disc. Therefore, the disc label is checked to determine the type of disc. On the other hand, if a label does not exist on the disk, it is a CD-DA or CD-G disk, so the CD-DA is played under user control. In the case of a CD-I disc, since the location and file name of the application can be known from the disc label, this is read into the system memory 32 and executed. When the application runs, the user plays the CD-I disc by using the mouse to select the onscreen features. When the user wants to exit the application program, use the on-screen EXIT function to terminate the program.

The interactive disc player having the full motion video function of the ending has a problem in that the disc must be replaced in order to play a movie composed of two decks. In addition, in producing a title of a CD-I base case, there is a problem in that a title capable of using two discs simultaneously cannot be produced, and thus a title is restricted in production.

Accordingly, it is an object of the present invention to provide an interactive disc player having a full motion video function which is provided with a plurality of deck mechanisms for driving a disc to facilitate user convenience.

Another object of the present invention is to provide a method of driving an interactive disc player having a full motion video function having a plurality of deck mechanisms for driving a disc.

In order to achieve the above object, a compact disc real-time processing and application program such as an interactive disc player having a full motion video function of the present invention, a main processor for executing a program, a clock generator for generating a clock used in a system, a system program Program memory to store, data memory to store application programs and user files, system memory to store application programs and audio and video data from disks, data controllers to process data from disks, and CD data to be decoded. Decoder buffer acting as an external buffer, a driver controller for controlling the first compact disk driver and the second compact disk driver, the first compact disk driver and the second compact disk driver, according to the control signal from the driver controller Switching means for switching the signal output line of the compact disc driver, a video decoder for decoding MPEG (Moving Picture Experts Group) video / audio data, an MPEG decoder for controlling and decoding MPEG audio / video data, and the MPEG controller MPEG buffer that buffers the data when decoding data, a video D / A converter for converting the digital RGB signal output from the video decoder and the analog RGB signal output from the MPEG decoder into an analog RGB signal, and a 16-bit PCM audio signal. It is characterized by having an audio D / A converter for converting into an analog audio signal, it is possible to individually play and continuously play a plurality of discs.

In order to achieve the above object, a method of driving an interactive disk player having a full motion video function of the present invention includes a clock generator for generating a clock used in a main processor and a system for executing a program such as a compact disk real-time processing and application program. , Program memory for storing system programs, data memory for storing application programs and user files, system memory for storing application programs and audio and video data from disk, data controller for processing data from disk, CD data Decoder buffer which acts as an external buffer during decoding of the driver, a driver controller for controlling the first compact disk driver and the second compact disk driver, the first compact disk driver and the second compact disk driver, and a control signal from the driver controller. Switching means for switching the signal output line of the corresponding compact disc driver accordingly, a video decoder for decoding MPEG (Moving Picture Experts Group) video / audio data, an MPEG decoder for controlling and decoding MPEG audio / video data, An MPEG buffer buffering data during decoding of the MPEG controller, a digital RGB signal output from the video decoder and a digital RGB signal output from the MPEG decoder into an analog RGB signal, and a 16-bit A driving method of an interactive disc player having a full motion video function, comprising: an audio D / A converter for converting a PCM audio signal into an analog audio signal; Disk where the user inserts the disk in the disk driver A disc selection step of determining a type of disc on which the data controller is mounted, a function selection step of the user selecting one of the first disc, the second disc, and the continuous disc play, and the function selection is the first disc play The first disc playback step of driving the first disc when selected, the second disc playback step of driving the second disc if the function selection is selected as the second disc play, and the first and second playback steps when function selection is selected as the continuous disc play. And a continuous playback step of continuously playing the two discs, and an execution ending step of ending the execution after the disc playback.

In addition, the apparatus of another embodiment of the present invention includes a main processor for executing a program such as a compact disc real-time processing and application program; A clock generator for generating a clock used in the system; A program memory for storing a system program; A data memory for storing application programs and user files; A system memory for storing application programs from disk and audio and video data; A data controller for processing data from the disk; A decoder buffer serving as an external buffer when decoding CD data; A first compact disk driver and a second compact disk driver; A first driver controller controlling a first compact disk driver; A second driver controller controlling a second compact disk driver; First switching means for connecting a signal output line of a first compact disk driver to the data controller in accordance with a control signal from the first driver controller; Second switching means for connecting a signal output line of a second compact disc driver to the data controller in accordance with a control signal from the second driver controller; A video decoder for decoding MPEG (Moving Picture Experts Group) video / audio data; An MPEG decoder for controlling and decoding MPEG audio / video data; An MPEG butter which buffers the data of the MPEG controller when decoding the data; A video D / A converter for converting the digital R.G.B signal output from the video decoder and the digital R.G.B signal output from the MPEG decoder into an analog R.G.B signal; And an audio D / A converter for converting a 16-bit PCM audio signal into an analog audio signal, enabling individual play and continuous play of a plurality of discs.

Hereinafter, a configuration and an operation according to an embodiment of an interactive disc player having a full motion video function of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram according to the configuration of an interactive disc player having a full motion video function of the present invention.

2, a main processor 100 for executing programs such as compact disc real-time processing and application programs, a clock generator 200 for generating a clock used in a system, a program memory 300 for storing a system program, Data memory 310 for storing application programs and user files, system memory 320 for storing application programs and audio and video data from disks, Data controller 400 for processing data from disks, CD- Decoder buffer 500, a first compact disk driver 610 and a second compact disk driver 620, a first compact disk driver 610, and a second, which serve as external buffers when decoding ROM and CD-I data. A driver controller 600 for controlling the compact disk driver 620, the first compact disk driver 610, and the second compact disk driver 620, and the driver controller 600. Switching means 630 for switching the signal output line of the compact disc driver and the compact disc driver in accordance with a control signal from the same; and a video decoder for decoding MPEG (Moving Picture Experts Group) video / audio data. 700), an MPEG decoder 800 for controlling and decoding MPEG audio / video data, an MPEG buffer 810 for buffering when decoding the data of the MPEG controller 800, and a digital RGB output from the video decoder 700. A video D / A converter 900 for converting a digital RGB signal output from the signal and the MPEG decoder 800 into an analog RGB signal, and an audio D / A converter for converting a 16-bit PCM audio signal to an analog audio signal. 910 is provided.

The switching means 630 includes a first switching means 631 for selecting the first compact disk driver 610 and a second switching means 632 for selecting the second compact disk driver 620.

Hereinafter, the function of each component of the interactive disc player having the full motion video function of the present invention according to the above configuration will be described in more detail.

The main processor 100 is designed to be used as an MC6800 series processor according to the CD-I specification (GREEM BOOK), which is a microprocessor that executes software such as CD-ROTS (COMPACT DISC REAL TIME OPERATING SYSTEM), an application program, and the like. . The program memory 300 is where CD-I system software including CD-ROTS is stored. That is, the memory stores CD-ROTS, system boot program, system INIT program, device triber program, player cell program, and the like. Therefore, when the system is turned on, booting is performed by the boot program of the program stored therein, and the player cell program is executed to allow the user to operate the system. The data memory 310 uses NVRAM, which is a memory for storing data files such as CD-I system parameter files and user files so that applications or users can store data or refer to necessary data. The system memory 320 is a place where application programs, audio and video data read from disks, and the like are stored. The system memory 320 provides a memory for executing various programs. This memory is also managed by the video controller and decoder by CD-ROTS. The data controller 400 is a compact disc interface controller. The data controller 400 stores a CD-I data stream input from a disc in the decoder buffer 50, decodes the CD-I sector and responds to the request of the main processor 100. Therefore, the system memory 320 is transmitted. CD-I sector decoding is to perform head, subheader separation, error correction and the like. In addition, there is a function for the interface between the main processor 100 and the driver controller 600 can exchange commands and STATUS, ADPCM audio decoder, audio processing unit, that is, audio mixing and audio attenuation. The decoder buffer 500 is composed of a memory that simultaneously stores, decodes, and transmits a CD signal continuously received from the disk driver 610 in real time. The decoder buffer 500 buffers a CD data stream, stores data being decoded, and is being transmitted. It has a function of storing data. It also provides a memory that the data controller 400 needs for decoding. The driver controller 600 performs a function of reading data on the disk by controlling the disk driver 610 and exchanging command and status information with the main processor 100. The application program CD data of a specific location on the disk. When requesting to read a sector, the CD-FM device driver receives this command and passes it to the driver controller 600. The driver controller 600 locates this position on the disk and reads out data. That is, the driver controller 600 controls the disk driver 610 to read data from the disk driver 610. In addition, it has a user interface function to transfer the signal input key and the signal of the remote control to the main processor (100). The video decoder 700 decodes the video signal defined in the CD-I standard, outputs it as a digital RGB signal, and executes various video effects. In addition, the main processor 100 allows the system memory 310 to be accessed and includes a DRAM controller. The MPEG decoder 800 is an MPEG1 controller that decodes an MPEG1 audio / video stream based on the MPEG1 specification and provides an interface function with the main processor 100. The MPEG audio is decoded to be an audio D / A converter 910 as a 16-bit PCM signal. The MPEG1 video signal is decoded and output to the video D / A converter 900 in the form of a digital RGB signal.

3 is a flowchart illustrating a method of driving an interactive disc player having a full motion video function according to the present invention.

In FIG. 3, a disk mounting step 1010 in which the user inserts a disk into the disk driver 610, a disk discrimination step 201 in which the type of the disk on which the data controller 400 is mounted is determined, and the user makes a first step. A function selection step 301 of selecting one of a disc, a second disc, and a continuous disc play; a first disc playback step 401 of driving a first disc if a function selection is selected as the first disc play; If the selection is selected as the second disc play, the second disc playback step 501 for driving the second disc; if the function selection is selected as the continuous disc play, the continuous play step 601 for continuously playing the first and second discs; And an execution termination step 701 for terminating the execution after the disk playback.

The first disc reproducing step 401 includes a first disc driver driving step 402 for driving a first disc driver 610 for driving a first disc, and first data reproducing for reading and playing data on the first disc. A step 403, and a first playback termination step 404 for terminating the execution of the application program according to the user's termination selection.

The second disc reproducing step 501 includes a second disc driver driving step 502 for driving a second disc driver 620 for driving a second disc, and second data reproducing for reading and playing data on the second disc. Step 503, and a second playback end step 504 for terminating the execution of the application program in accordance with the user's end selection.

In the continuous playback step 601, the third disk playback step 602 for playing back the first disk, the driving of the first disk driver 610 is terminated after the third disk playback ends, and the second disk driver 620 is driven. And a fourth disc reproducing step 604 for reproducing the second disc in accordance with the second disc driver driving.

Hereinafter, the operation of the interactive disc player having the full motion video function according to the above configuration will be described.

When the user inserts the disk into the disk driver 610 in the disk mounting step 101, in the disk determining step 201, the data controller 400 determines the type of the mounted disk and the TOC data on the disk. The label is read from each disk driver 610. If a disc label exists on a disc, it is not a CD-DA disc. Therefore, the disc label is checked to determine the type of disc. On the other hand, if a label does not exist on the disc, it is a CD-DA or CD-G disc and the CD-DA is played back according to the user's control. The data controller 400 displays data so that when two discs are mounted, the user can select to play each disc on the display panel and to sequentially play the two discs. Accordingly, when the user selects a desired play function in the continuous disc play function selection step 301, the disc is driven according to the selected specification. That is, when one or two discs are loaded, the selected disc is driven first, and when selected as continuous play, the disc is sequentially driven from disc 1 of the disc driver 610. Accordingly, when the function is selected as the first disc play, the first disc drive is driven in the first disc drive driving step 401, and the data on the first disc is reproduced in the first data reproducing step 403. FIG. When playback ends, playback ends in the first playback end step 404. Even when the second disc play is selected, data on the second disc is reproduced in the same manner. If the function is selected as the continuous disc play, after the data of the first disc is played in the third disc play step 602 and the play is finished, the drive of the disc is switched in the disc drive switch step 603 and then the fourth disc is played. In the disc reproducing step 604, the data on the second disc is reproduced. In this case, in the case of the CD-I disk, the location and file name of the application program can be known from the disk label, so that the program of the corresponding drive is read into the system memory 320 and executed. When the application is running, the user can use the mouse to select a function displayed on the screen and play the CD-I disc interactively with the player. In addition, when the user wants to exit the application program, the program is terminated by selecting the end function on the display screen, and when the function is selected for continuous play after the end, the next disc is played. When an application needs to specify a drive, the application can read the data it wants.

4 shows a block diagram of another embodiment according to the present invention. In FIG. 4, the same parts as in the embodiment of FIG. 2 described above are denoted by the same reference numerals and detailed description thereof will be omitted. Another embodiment of the present invention differs from the one embodiment in that there are two driver controllers. The first and second driver controllers 640 and 650 are connected to the data controller 400 in the same line, and are connected to the first and second disk drivers 610 and 620, respectively, and the signals of the first and second disk drivers 610 and 620 are different. The output line is connected to the data controller 400 through first and second switching means 633 and 634, respectively. The first switching means 633 is controlled by the first driver controller 640 and the second switching means 634 is controlled by the second driver controller 650. The first and second driver controllers 640 and 650 recognize and execute the driver identification code byte included in the header of the command and status package supplied from the data controller 400. That is, as shown in FIG. 5, the command and status package includes parameters from the header of the first byte, the command or status code of the first byte, and the third byte, and if the first byte is '01'. If the first driver controller 640 performs the operation and '02', the second driver controller 650 performs the operation.

Therefore, the interactive disc player and driving method having the full motion video function of the present invention can be sequentially played without a separate operation of replacing a disc composed of two or more discs during playback by having a plurality of deck mechanisms for driving a compact disc. In addition, it is possible to read data from two discs and play them at the same time with a single application program, thereby enhancing user convenience.

Claims (6)

CLAIMS 1. A compact disc player, comprising: at least two compact disc drivers; A data processor for processing data output from the disk; A driver controller for controlling the compact disc driver; And switching means for connecting an output signal line of a corresponding compact disc driver to the data controller according to a control signal output from the driver controller, and having a full motion video function capable of individual play and continuous play of a plurality of discs. Interactive disc player. The interactive disc player according to claim 1, wherein the driver controller is configured with respective driver controllers corresponding to the drivers. 3. The interactive disc player of claim 2, wherein each of the driver controllers is executed by recognizing a driver identification code included in a header of a command and a status package supplied from the data controller. A method of driving an interactive disc player having a full motion video function having at least two compact disc drives, comprising: a disc mounting step of a user inserting a disc into a disc driver; A disc discrimination step of determining the type of disc; A function selection step of the user selecting one of the first disc, the second disc, and the continuous disc play; And reproducing a corresponding disc in accordance with the function selection. The method of claim 4, wherein the disc reproducing step comprises: a first disc reproducing step of driving a first disc when a first disc play is selected; A second disc playing step of driving the second disc when the second disc play is selected; And a continuous playback step of continuously playing the first and second discs if the disc is selected as a continuous disc play. 6. The second disc of claim 5, wherein the continuous playback step comprises: after the first disc is played, the drive of the first disc driver is terminated and the disc drive for driving the second disc driver for driving the second disc driver is changed; A method of driving an interactive disc player having a full motion video function, characterized in that for playing a second disc in response to a driver driving.