KR0134727Y1 - Cd-i dv data and mpeg data playing apparatus using cd-i board - Google Patents

Abstract

The present invention relates to an apparatus for reproducing CD-I DV data and MPEG data using CD-I. In order to play a CD-I disc in a personal computer, the functions of a CD-I board and an MPEG board are integrated into one. The present invention adopts a dual bus line structure to eliminate duplication of hardware configuration for MPEG data reproduction, and to reproduce CD-I DV data and MPEG data for personal computers on one board. Therefore, the device of the present invention simplifies the configuration of the personal computer system and at the same time provides the effect of reducing the cost increase factor due to the complicated hardware configuration.

Description

CD-I DV data and MPEG data playback device using CD-I board

1 is a block diagram of a conventional CD-I board circuit for reproducing a CD-I disc in a personal computer (PC) environment.

2 is a block diagram of a CD-I DV data and MPEG data reproducing apparatus using a CD-I board according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1, 6: CD-I board

11, 61: central processing unit 121, 621: CD-I ROM

122, 622: CD-I RAM 13, 63: Dual Port Memory

14, 64: CD-I data processor 15, 65: MPEG data processor

16, 66; Audio image output section 17, 67: CD-I bus line

68: PC Bus Line 69: Multiplexer

2, 7: Input keyboard 3, 8: CD-ROM driver

4, 9: hard disk driver

The present invention relates to a personal computer (PC) system for reproducing CD-I disks and MPEG data for PC, and more specifically, CD-I disk data and CD using one CD-I board (Board). The present invention relates to a CD-I DV and MPEG playback apparatus using a CD-I board capable of reproducing not only DV disc data but also MPEG data for PC.

A system for processing CD-I data and CD-I DV data has been released using a CD-I board installed in a personal computer (PC). Here, the CD-I DV data is a CD-I video data added to the MPEG technique, and the CD-I DV disc is a disc in which a video signal generated from a video signal source is encoded and recorded using the MPEG technique.

Such a conventional technique will be described in detail with reference to the drawings.

1 is a block diagram showing an example of a conventional CD-I board circuit configuration for reproducing data recorded on a CD-I disc or a CD-I DV disc in a personal computer environment.

As shown in the figure, a conventional personal computer has a CD-I board 1 mounted for reproduction of a CD-I disc. The CD-I board 1 is connected to an input keyboard 2, a CD-ROM driver 3, and a hard disk driver (hereinafter referred to as 'HDD'). The CD-I board 1 is also equipped with a central processing unit 11 (hereinafter referred to as CPU). The CPU 11 is connected with a CD-I bus line 17 for sending and receiving various control signals between various devices of the computer system and a plurality of components of the CD-I board. In addition, the CD-I board 1 is provided with a CD-I ROM (ROM: 121) and a CD-I RAM 122 for processing CD-I data.

The CD-I board 1 includes a dual port memory 13 for interfacing between the input keyboard 2, the CD-ROM driver 3, and the HDD 4. In addition, a CD-I data processing unit 14 and a CD-I MPEG data processing unit 15 for processing CD-I data and CD-I MPEG data, and an audio image output unit for outputting the processed sound and image data (16) is provided.

In FIG. 1, the personal computer writes data (hereinafter referred to as "first data") read through a CD-ROM driver or the like into a dual port memory 13. Thereafter, the first data recorded in the dual port memory 13 is read out and recorded in the CD-I RAM 122.

First, when the above-mentioned first data is audio data for general CD-I of the analog digital pulse code modulation (ADPCM) method, the central processing unit 11 transmits the first data to the audio in the CD-I data processing unit 14. Output to decoder 142. In this case, a first D / A converter 162cd is connected to an output terminal of the audio decoder 142. In addition, when the first data described above is the video data for CD-I, the central processing unit 11 stores the video data stored in the CD-I RAM 122 in the video decoder in the CD-I data processing unit 14. Output to (141). The video decoder 141 processes the above-described video data and outputs the video data as a video overlay 161.

In addition, if the above-mentioned first data is MPEG data for CD-I full motion video read out from the CD-I DV disc, the central processing unit 11 reads the first data read out from the dual port memory 13; Is output to the MPEG data processing unit 15. The MPEG data processing unit 15 restores the data stream of the aforementioned CD-I full video MPEG data, processes the video signal in the MPEG video decoder 151, and then outputs the video signal to the video overlay 161. It is processed by the MPEG audio decoder 152 and output through the second D / A converter 162mp. At this time, the MPEG video decoder 151 and the MPEG audio decoder 152 are connected to memory 151m and 152m of predetermined capacity for storing the processed MPEG data, respectively.

As described above, the conventional CD-I board 1 includes an MPEG data processing unit 15 for reproducing CD-I complete video MPEG data, and a CD for reproducing video data and audio data for general CD-I. -I data processing section 14, which reproduces the data read from the CD-I disc in a personal computer environment.

However, such a conventional CD-I board 1 cannot perform playback operations of the PC MPEG data recorded on the HDD 4 and the CD-ROM disk, and therefore, record on the HDD 1 and the CD-ROM disk. In order to play the data, a separate MPEG board must be provided. In addition, when a separate MPEG board is provided to reproduce MPEG data recorded on the HDD and CD-ROM disc, since the hardware configuration for reproducing the MPEG data is duplicated on the CD-I board and the MPEG board, the hardware of the system The composition is complicated, as well as the production cost is increased.

Accordingly, an object of the present invention to solve such a problem is to provide hardware for MPEG data playback by integrating the functions of the CD-I board and the MPEG board of the personal computer into one to play a CD-I disc in a personal computer. Disclosed is a CD-I DV and MPEG playback apparatus using a CD-I board that eliminates duplication of configuration and enables playback of CD-I DV discs and playback of PC MPEG data on one board.

The CD-DV data and MPEG data reproducing apparatus using the CD-I board of the present invention for achieving the above object is a main board of a personal computer for reproducing CD-I data and / or MPEG data. To

A dual-bus line connecting the respective components of the main board to move CD-I data and / or MPEG data processed by the personal computer and related information signals;

A central processing unit controlling the components of the personal computer and the main board according to data characteristics to be processed in the personal computer;

Dual-pod memory for the interface between the input and output devices and the main board for connecting to the main board;

A storage device for storing various kinds of information processed by the personal computer;

A multiplexer for selecting the connection of the double bus lines under the control of the central processing unit;

A CD-I data processing unit for processing CD-I data input to the personal computer under control of the central processing unit; and

And an MPEG data processing unit for processing MPEG data input to the personal computer under the control of the central processing unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIG. 2.

2 is a block diagram showing the structure of a CD-I DV data and MPEG data reproducing apparatus using a CD-I board according to a preferred embodiment of the present invention.

As shown, the CD-I board 6 according to the present invention has a basic structure using a double bus line (a plurality of lines for signal processing, but usually using 'bus' without attaching 's'). This double bus line (structure) is the core of the present invention. The CD-I bus line 67 is a bus line used when the signal processed by the personal computer is general CD-I data instead of the MPEG data for the PC. The PC bus line 68 processes the MPEG data for the PC. Bus line to use.

In addition, the CD-I board 6 of the present invention is provided with a multiplexer 69 for selecting a bus line under the control of the central processing unit 61 according to the characteristics of the signal to be processed in the PC system.

PC bus line 68 is connected to PC RAM 68m. The PC RAM 68m is provided to process MPEG data for the PC. The PC RAM 68m is provided in a form in which a part of memory included in the PC system is allocated rather than newly added.

MPEG data processing unit 65 for reproducing MPEG data (hereinafter referred to as "PC MPEG data") recorded on HDDs and CD-ROMs of personal computers (PCs) and MPEG data read from CD-I DV discs. Equipped with. The MPEG data processing unit 65 includes an MPEG recorder 651 for processing MPEG data for CD-I full motion images read from the above-described PC MPEG data and CD-I DV disks, and a second memory for storing MPEG data. It consists of 651m.

The device of the present invention has a structure in which the MPEG data processing unit 65 is shared as described above. Therefore, the CD-I bus line 67 and the PC bus are multiplexed by multiplexing various address lines and data lines of the CD-I board. The dual port memory 63 is interfaced to the line 68.

The operation of the CD-I DV data and MPEG data reproducing apparatus using the CD-I board of the present invention configured as described above will be described in more detail.

2 is divided into operations for reproducing CD-I DV discs and operations for reproducing PC MPEG data. At this time, the operation of reproducing the CD-I data of the general CD-I disk in the apparatus of FIG. 2 is the same as that of the apparatus of FIG.

First, in the case of playing a CD-IDV disc, the central processing unit 61 of the CD-I board 6 allows the CD-ROM driver 8 to read MPEG data for CD-I full-motion images from the CD-I DV disc. Outputs a command to control the dual port memory (63).

According to the control command recorded in the dual port memory 63, the CD-ROM driver 8 reads CD-I complete video MPEG data from the CD-I DV disk, and outputs the read data to the dual port memory 63. Save it. Then, the CD-I board 6 reads MPEG data stored in the dual port memory 63 and executes data processing for reproduction. Here, the dual port memory 63 is for interfacing between the dual bus lines 67 and 68 and the PC input / output devices 7, 8 and 9, and is used simultaneously in the above-described bus lines. The CD-I full video MPEG data read out from the dual port memory 63 is output to the MPEG decoder 651 through the multiplexer 69.

Here, the multiplexer 69 is for inputting MPEG data of a CD-I DV disc and MPEG data for PC to the MPEG recorder 651. The multiplexer 69 is provided through the address lines and data lines of the multiplexed dual bus lines 69 and 68. MPEG data are selectively outputted to the MPEG decoder 651.

In other words, when reproducing the CD-I complete video MPEG data read from the CD-I DV disc, the multiplexer 69 uses the dual port memory 63, the CD-I bus line 67, and the MPEG recorder 651. Choose to connect in turn. When the MPEG data for the PC is reproduced, the dual port memory 63, the PC bus line 68, and the MPEG decoder 651 are selected to be sequentially connected. In order to execute such an operation, a circuit must be configured to enable data transfer between the CD-I bus system and the PC bus system lines shown in FIG.

The MPEG decoder 651 restores the data stream of the CD-I complete video MPEG data input from the multiplexer 69, processes and outputs the MPEG audio data and the MPEG video data, respectively. In this case, the MPEG audio data is converted into an analog method through the second D / A converter 662mp and the MPEG video data is output to the video overlay 661.

On the other hand, in order to reproduce the MPEG data for the PC, the personal computer reads the MPEG data for the PC through the internal CD-ROM driver 8 or the hard disk 9, and reads the read data into the PC memory 68m. Save it. At this time, the multiplexer 69 selects the dual port memory 63, the PC bus line 68, and the MPEG decoder 651 in order. Then, the PC MPEG data stored in the PC memory 68m of the personal computer is accessed and output to the MPEG decoder 651.

The MPEG decoder 651 restores the data stream of the MPEG data for the PC to reproduce the original video audio signal, outputs the processed video signal to the video overlay 661, and outputs the audio signal to the second D / A converter 662mp. ) Is converted into an analog signal and output. The video overlay 661 converts the input video signal into a VGA signal to be displayed on the monitor and outputs the converted video signal.

As described above, the CD-I DV data and MPEG data reproducing apparatus of the present invention using the CD-I board can process MPEG data for PC and CD-I complete video MPEG data read from a CD-I DV disc. By sharing the MPEG reproducing unit for reproducing the CD, it is possible to reproduce CD-I DV MPEG data and PC MPEG data with only one board.

Accordingly, the device of the present invention utilizes one CD-I board having a dual bus structure, thereby simplifying the configuration of the personal computer and facilitating installation, thereby providing an effect of reducing the cost increase factor due to the complicated hardware configuration.

Claims (5)

In a main board of a personal computer for reproducing CD-I data and / or MPEG data, CD-I data and / or MPEG processed by the personal computer by connecting the respective components of the main board. Dual-bus lines through which data and associated information signals travel; A central processing unit controlling the components of the personal computer and the main board according to data characteristics to be processed in the personal computer; Dual port memory for the interface between the input and output devices and the main board for connecting to the main board; A storage device for storing various kinds of information processed by the personal computer; A multiplexer for selecting the connection of the double bus lines under the control of the central processing unit; A CD-I data processing unit for processing CD-I data input to the personal computer under the control of the central processing unit; And an MPEG data processing unit for processing the MPEG data input to the personal computer under the control of the central processing unit. The CD-I data processing unit of claim 1, wherein the CD-I data processing unit comprises: an audio signal processing unit connected to the dual bus line and processing CD-I audio data input to the personal computer; And a video signal processing unit connected to the dual bus line to process CD-I video data inputted to the personal computer. The apparatus of claim 1, wherein the MPEG data processing unit comprises: an MPEG decoder connected to the dual bus line and processing MPEG data input to the personal computer; And a memory for storing MPEG audio and MPEG video data processed by the MPEG decoder. 2. The apparatus of claim 1, wherein the dual bus lines comprise: a CD bus line for processing CD data; And a PC bus line for processing MPEG data, and CD-I DV data using a CD-I board, which multiplexes the address line and the data line of the double bus line in order to share the MPEG data processing unit. And MPEG data reproducing apparatus. The video data output unit of claim 1, wherein the CD-I data processing unit and the MPEG data processing unit each include a video overlay at each video signal output terminal in order to convert the processed video signal or the MPEG video signal into a VGA signal. CD-I DV data and MPEG data playback device using CD-I board.