KR100503473B1 - DVD recording/reproducing device with CD's sub information - Google Patents

Abstract

Disclosed is a DVD player capable of displaying additional information. The present DVD player includes a decoder for reproducing video and audio signals from a DVD player, respectively, on a screen and a speaker, and a DVD playback apparatus capable of converting video and audio signals into a predetermined format and recording them in a storage device. And a control unit which controls the decoder unit to display additional information included in the voice signal on the screen when the voice signal is reproduced. According to the DVD player, when playing a music CD with the DVD player, the additional information embedded in the music CD is displayed on the screen of an image display device such as a television so that the viewer can know the information about the music CD. You can easily select the desired song through the menu displayed on the screen.

Description

DVD recording / reproducing device with CD's sub information

The present invention relates to a DVD (Digital Versatile Disk) playback apparatus, and more particularly, to a DVD playback apparatus that expresses additional information about a music CD on a screen when playing a music CD in a DVD playback apparatus capable of playing a music CD (Compact Disk). It is about.

Media media for storing video and audio signals, including analog video tapes, CDs mainly for MPEG-1 formats, and DVDs for storing high-capacity, high-definition video and audio signals. Is being released. CDs were initially used to store audio files. Recently, various recordings have been released based on early CDs. As a media medium for storing high quality video and audio signals, DVD is the mainstream and is rapidly replacing analog video tape. In addition, a DVD player for playing a DVD can usually play a music CD previously released.

Generally, a DVD player requires a screen and a speaker to receive and reproduce video and audio signal sources from the outside. Therefore, a DVD playback device is typically used in combination with a video display device such as a television, and the DVD playback device can MPEG decode video and audio signals stored in a DVD media medium and input the decoded signal to the video display device. (National Television System Committee), or PAL (Phase Alternation Line) encoded and supplied to a video display device such as a television.

On the other hand, when the music CD is inserted into the DVD player, the conventional DVD player recognizes the CD and then plays it, but does not display any information about the CD on the screen of the video display device or the DVD player. The manufacturer's logo (logo) screen was displayed. Accordingly, the listener who wants to listen to music only by the DVD player has no way of knowing how many songs are stored in the CD inserted into the DVD player and how long each song has. That is, in the conventional DVD player, when a music CD is inserted, it can be played back, but there is a problem that the listener does not know the information about the played audio signal.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problem, and an object of the present invention is to provide a DVD player which can display additional information on a music CD when the DVD player plays back a music CD.

According to an aspect of the present invention, there is provided a DVD player having an additional information display function, comprising: a decoder unit for reproducing a video signal and an audio signal from a DVD player on a screen and a speaker, respectively, and the video signal and the audio signal. A DVD playback apparatus capable of converting a data into a predetermined format and recording the same into a storage device, comprising: a flash ROM storing a menu program corresponding to additional information included in the audio signal, and additional information applied from the DVD player; And a microprocessor for loading a menu program stored in the flash ROM according to the detected additional information and outputting the menu program to the decoder unit.

Preferably, the apparatus further includes a key input unit receiving a key input signal for selecting any one of the additional information displayed on the screen.

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It is preferable that the DVD player can reproduce a media medium storing audio files of the MPEG-1 format and files of the MP3 format.

Preferably, the additional information is the number of voice signals stored in the media medium, the size of the stored voice signals, and the reproduction time of the voice signals.

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

1 is a conceptual diagram showing a storage format of an audio signal stored in a music CD.

The conceptual diagram shown represents a music CD standard proposed by Sony in Japan and Philips in the Netherlands, and is commonly referred to as CD-DA.

Reference numeral 10 is an area called TOC (Table Of Content), and contains information about the number of voice signals stored in the form of files on a music CD, the file size of each of the stored voice signals, and the name of each file. Reference numeral 20 denotes a region in which music data (Digital Audio), that is, voice signals, stored in the music CD are stored. The stored voice signal has a sampling frequency of 44.1 kHz and may have 16 bits of stereo digital data. Reference numeral 30 denotes a time point when the music data (Digital Audio) stored in the music CD is terminated, and is commonly referred to as lead out. The lead out is recorded only for a logic " 0 " for about one minute and thirty seconds, and causes a playback device that plays a music CD to recognize that the music data is over.

Figure 2 shows a block diagram of a DVD player according to an embodiment of the present invention.

The illustrated DVD player includes an input / output unit 110, an encoder unit 120, a hard disk (HDD) 130, a controller 140, a DVD player 150, a key input unit 160, and an audio D. / A converter 170, MPEG decoder 180, and video encoder 190.

The input / output unit 110 receives various video signal sources from the outside or outputs the video signal sources output from the video encoder 190 to the outside (for example, a monitor screen). The input / output unit 110 receives a broadcast signal, a broadcast signal applied from a video player (not shown), and a composite signal and outputs it to the encoder unit 120 or is output from the video encoder 190. A composite signal is output to a video display device such as a television. In addition, when a broadcast signal is applied from a receiving device such as a tuner (not shown), it is divided into a video signal and an audio signal.

The encoder unit 120 converts the analog-digital image from the video signal source applied from the input / output unit 110 into an analog form, and then compresses it according to the MPEG format (eg, the MPEG-2 format). In general, MPEG video signals are compressed to increase storage capacity when stored in a storage medium such as a hard disk (HDD) 130.

The hard disk (HDD) 130 stores an image signal having an MPEG format in the form of a file. In this case, the video signal source having the MPEG format among the video signal sources applied to the input / output unit 110 may be stored as it is. Here, the HDD 130 stores video signals in MPEG-2 format in the form of a file, but the HDD 130 includes MPEG-1, MPEG-2, and MPEG-. 3, and MPEG-4 format can be stored, and are not limited to the MPEG-2 format described in this embodiment. Similarly, in the present embodiment, the encoder unit 120 and the MPEG decoder 180 are also encoded and decoded according to the MPEG-2 format as an example, but in addition to the encoding in the form of MPEG-1, MPEG-3, MPEG-4. And decode.

The DVD player 150 reads out video / audio signals stored in MPEG format on a DVD media medium. In addition, the DVD player 150 can read a digital audio signal from the music CD when the music CD (CD-DA) is inserted.

When the music CD is inserted into the DVD player 150, the controller 140 detects this and outputs a predetermined menu program to the video encoder 190. The video encoder 190 processes a menu program and converts it into a form reproducible on a screen in an image display apparatus such as a television, for example, NTSC / PAL, and outputs an audio signal to the audio D / A converter 170.

Meanwhile, when a video / audio signal compressed according to the MPEG-2 format is applied to the DVD player 150 to the controller 140, the controller outputs it to the MPEG decoder 180.

The key input unit 160 receives a control signal generated from a remote control device (not shown) for controlling the DVD player and a setting key provided in the DVD player, and outputs it to the controller 140.

The audio D / A converting unit (audio D / A) 170 receives a digital voice signal from the control unit 140 when playing a music CD in the DVD player 150, and inputs and outputs the digital to analog converter. Output to the unit (110). The digital-analog converted audio signal is a speaker of the video display device through a separate speaker (not shown) connected to the input / output unit 110 or a connection terminal (not shown) to the video display device connected to the input / output unit 110. (Not shown).

When the DVD decoder 150 inserts the DVD media into the DVD player 150, the MPEG decoder 180 controls the video and audio signals of the MPEG format previously stored on the DVD media or the HDD 130. Authorized via 140, and decompresses it.

The video encoder 190 converts the video and audio signals decompressed by the MPEG decoder 180 into a format that can be reproduced by a video display device such as a television, for example, NTSC / PAL. The converted video signal and audio signal are applied to the input / output unit 110 and reproduced by a screen (not shown) or a speaker (not shown) of the video display device (not shown) connected to the input / output unit 110.

Preferably, the control unit 140 includes a microprocessor 141 and a flash ROM 142.

The flash ROM 142 stores an operating system for driving the present DVD player. When the music CD is inserted into the DVD player 150, the flash ROM 142 stores the file information stored in the TOC (Table Of Content) area of the music CD. There is a predetermined application program for displaying on the screen, for example, a GUI (Graphic User Interface) program.

The microprocessor 141 recognizes when the music CD is inserted into the DVD player 150, and recognizes the music CD, and then displays the information of the TOC area in the flash ROM 142. Load a program to implement a GUI (Graphic User Interface) environment on the screen. The microprocessor 141 loads the information stored in the TOC area of the CD in the program according to the read program, processes the CD so that the TOC information of the CD is displayed on the screen, and outputs it to the video encoder.

The DVD player configured as described above displays the TOC information of the music CD in GUI form on the screen of a video display device such as a television when the music CD is inserted into the DVD player, and the audio signal stored in the music CD by the speaker of the video display device. Will play. Hereinafter, a description will be given focusing on the screen of the GUI form implemented by the present invention.

First, a CD menu screen having a GUI form will be described with reference to FIG. 3, in which a remote controller device as an external input device of the DVD player of the present invention is shown.

In the drawing, reference numeral 300 denotes a remote control device, reference numeral 301 denotes a menu key used for instructing loading and closing of a CD menu screen, and reference numerals 302, 303, 304, and 305. The parts marked with are the left, right, up and down arrow keys used to indicate the movement between menus on the CD menu screen. Reference numeral 306 denotes an enter key used to select a menu, and 307 denotes a return key used to return to the previous screen from the current screen.

The remaining keys are known keys and specific keys for operating a video recording / reproducing device (not shown) and a video display device (not shown) such as a television, and the like, and the keys are displayed through letters displayed adjacent to the key. It is easy to understand, and even if the detailed description of the function of each key is omitted, the detailed description is omitted because it does not interfere with the understanding of the present invention. Hereinafter, the CD menu screen illustrated in FIG. 4 will be described with reference to the remote controller illustrated in FIG. 3.

4 shows a CD menu screen displayed on a screen by an application program stored in a flash ROM.

As shown, when the music CD is inserted into the DVD player 150, the number 210 of audio signals that can be reproduced according to the information stored in the TOC area of the music CD is displayed on the screen. Reference numeral 220 denotes an icon for easy recognition by the viewer, and icons for eight CD media media are displayed. Reference numeral 230 displays a playback time of each audio signal stored in the music CD. Reference numeral 240 is a name given to each voice signal, and the default value is displayed as "TRACK". The cursor is positioned at TRACK01, which is the first TRACK even if the remote control apparatus 300 is not operated. At this time, the viewer can press the up and down arrow keys 304 and 305 of the remote control device 300 to position the cursor key on any one of the displayed TRACKs (TRACK01 to TRACK08). Press 306) to select and play the TRACK where the cursor key is located. In other words, when a music CD is played by the DVD player, the viewer can hear additional information about the music CD on the screen while listening to an audio signal, and can select and listen to a desired song. Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the present invention is not limited to the specific embodiments of the present invention without departing from the spirit of the present invention as claimed in the claims. Anyone of ordinary skill in the art can make various modifications, as well as such changes are within the scope of the claims.

As described above, when the music CD is played by the DVD player, the additional information embedded in the music CD is displayed on the screen of the video display device such as a television so that the viewer can know the information about the music CD. You can easily select the desired song through the menu displayed on the screen with the GUI.

1 is a conceptual diagram showing a storage format of an audio signal stored in a music CD;

2 is a block diagram of a DVD player according to an embodiment of the present invention;

3 is a plan view of a remote control device for remotely controlling the DVD player of FIG.

4 shows a CD menu screen displayed on the screen by an application program stored in the flash ROM.

* Description of the symbols for the main parts of the drawings *

110: input and output unit 120: encoder unit

130: hard disk 140: control unit

141: microprocessor 142: flashrom

150: DVD player 160: key input unit

170: audio D / A converter 180: MPEG decoder

190: video encoder

Claims (5)

A decoder unit for reproducing a video signal and an audio signal from a DVD player to a screen and a speaker, respectively, and a DVD player capable of converting the video signal and the audio signal into a predetermined format and recording the result in a storage device, A flash ROM storing a menu program corresponding to additional information included in the voice signal; And A microprocessor which detects additional information applied from the DVD player and loads a menu program stored in the flash ROM according to the detected additional information and outputs the same to the decoder unit. DVD player. The method of claim 1, And a key input unit to receive a key input signal for selecting any one of the additional information displayed on the screen. delete The method of claim 1, The DVD player, A DVD player having an additional information display function, characterized by being capable of playing back a media medium storing audio files in MPEG-1 format and files in MP3 format. The method of claim 4, wherein The additional information, And a number of voice signals stored in the media medium, a size of the stored voice signals, and a reproduction time of the voice signals.