KR100758078B1 - System for recording video/audio signal in optical disc player and method therefor - Google Patents

Abstract

The present invention relates to a video / audio signal recording technique in a hard disk built-in optical disk player, and it is determined whether a sound source for accompaniment is selected in an arbitrary DVD loaded on a DVD loader when a video / A video signal using a sync signal is selected after connecting an external video input, and it is judged whether a user voice is inputted through an external microphone while reproducing a selected accompaniment sound source. When a user voice is inputted, a DVD loader Mixing sound data of the accompaniment sound source and the user voice to be reproduced, and recording the mixed sound source and the video signal through the external video input on the hard disk. According to the present invention, since the mixed voice is recorded without additional recording equipment and is recorded on the hard disk together with the external video signal, it is possible to easily implement the song accompaniment or the concert recording function even with a low-cost system specification, It is effective.

Optical disc player, audio mixing, DVD loader

Description

TECHNICAL FIELD [0001] The present invention relates to a system and method for recording video / audio signals in a hard disk built-in optical disk player,

1 is a block diagram of a video / audio signal recording system in a hard disk built-in optical disk player according to an embodiment of the present invention;

2 is a flowchart illustrating a video / audio signal recording method in a hard disk built-in optical disk player according to another embodiment of the present invention.

Description of the Related Art

100: key input unit 102:

104: DVD loader 106: camera

108: Video input unit 110: Video switching unit

112: Sync signal separator 114: Hard disk

116: microphone 118: voice input unit

120: audio mixing unit 122: audio switching unit

The present invention relates to a hard disc built-in optical disc player control technology, and more particularly, to a video / audio signal recording system and method in a hard disc built-in optical disc player suitable for simultaneous recording of accompaniment sound source and external video signal.

As a device for practicing singing in general, a karaoke is known widely.

The system includes a system body, a monitor, and a microphone, and displays a predetermined background screen and a caption of a song on a screen of the monitor while outputting an accompaniment tune of a song selected by a user to the speaker.

The flexible half-timer is composed of a wireless microphone transmitting device and a receiving device, and the configuration thereof will be described in more detail as follows.

First, a voice signal generated by a user is picked up through a microphone and then amplified to a level suitable for processing through an amplifier.

The output signal of the amplifier is modulated to a predetermined frequency by the modulator and then transmitted to the outside via the transmitting antenna.

On the other hand, in the receiving device in the main body of the portable half-timer, the transmitted high-frequency signal is received via the receiving antenna and amplified to an appropriate level for processing through the antenna circuit,

Thereafter, the signal is amplified to a level suitable for processing through the tuning process, and then supplied to the channel unit. Here, the tuner channel is supplied to the detection unit through the channel selected through the tuning process to detect the original audio signal. It is amplified to an appropriate level for output through the amplifier and output to the outside.

[0003] On the other hand, with the development of electronic technology, a composite product, for example, a personal video recorder (PVR) having a storage medium such as a hard disk has been introduced into a general DVD player. Various multimedia environments using a built-in DVD player, such as a home theater, a music accompaniment, and a concert, are provided.

However, the conventional karaoke (concert) function using the built-in hard disk built-in DVD player uses only the function of mixing and outputting the audio signal inputted through the microphone during the accompaniment sound source reproduction by the acoustic mix circuit, There is a limitation in that it is inevitable to record by using. That is, conventionally, the audio accompaniment function is limited to an audio-type accompaniment function for mixing a user's voice (song) with an accompaniment sound source, and a separate recording device must be additionally connected for mixing the video signals together.

This not only increases the inconvenience of use but also increases the burden on the user due to the purchase of additional equipment.

SUMMARY OF THE INVENTION The present invention has been made in order to overcome the above-mentioned problems of the prior art and to overcome the above problems, and it is an object of the present invention to provide an audio- And to provide a video / audio signal recording system and method in a hard disk built-in optical disk player capable of realizing (concert) function.

According to an aspect of the present invention, there is provided a recording apparatus for a hard disk built-in optical disk player, comprising: a DVD loader for reading a DVD on which a sound source for accompaniment is recorded; a voice input means for inputting a user voice; Audio mixing means for mixing an accompaniment sound source read out from the DVD loader and a user's voice input from the voice input means; video input means for connecting at least one external video input; And a control means for recording a mixing sound source from the audio mixing means and a video signal from the video input means onto the hard disk.

According to another aspect of the present invention, there is provided a method of recording video / audio signals in a hard disk built-in optical disk player, the method comprising: when a video / audio recording key signal is applied, Determining whether a user's voice is input through an external microphone while playing back the selected accompaniment sound source when the accompaniment sound source is selected in the DVD, Mixing audio signals of the accompaniment sound source and the user audio to be reproduced through the DVD loader when a voice is input; and recording the video signal through the mixing sound source and the external video input to the hard disk Video / audio signals on the included hard disk built-in optical disk player It provides a way lock.

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

1 is a block diagram of a video / audio signal recording system in a hard disk built-in optical disk player according to an embodiment of the present invention. The video / audio signal recording system includes a key input unit 100, a control unit 102, a DVD loader 104, A video input unit 108, a video switching unit 110, a sync signal separation unit 112, a hard disk 114, a microphone 116, a voice input unit 118, an audio mixing unit 120, (Not shown).

As shown in FIG. 1, the key input unit 100 is formed on a front panel of a hard disk built-in optical disk player or on a remote controller in a key matrix manner to generate a key signal corresponding to a user's key button input action, As shown in FIG.

The controller 102 controls the overall operation of the hard disk built-in optical disk player according to a key signal from the key input unit 100. When the accompaniment recording key is input and the accompaniment sound source is selected according to the present embodiment, the control unit 102 mixes the user's voice together with the video signal photographed by the external camera and outputs the mixed voice to the hard disc 114 And records it. The detailed control process of the controller 102 will be described in detail with reference to the flowchart of FIG.

The DVD loader 104 reads the DVD on which the accompaniment sound source is recorded, and provides the audio source for the accompaniment to be read to the audio mixing unit 120.

The video input unit 108 is an input terminal to which an external video signal captured through the camera 106 is inputted and serves to provide the video signal to the video switching unit 110.

The video switching unit 110 selectively switches an external video signal provided through the video input unit 108 under the control of the control unit 102 and provides the external video signal to the hard disk 114. That is, since not only the camera 106 but also other external inputs can be connected to the hard disk built-in optical disk player, the video switching unit 110 can selectively output video signals, . If only the camera 106 is connected to the video input unit 108, since the video signal photographed by the camera 106 is automatically supplied to the hard disk 114, the video switching operation as described above can be omitted have.

The synchronizing signal separating unit 112 separates the video signal supplied through the video input unit 108 and the mixed sound supplied through the audio switching unit 122 to be described later into a video signal And separates the sync signal from the sync signal. That is, the controller 102 determines the sync signal of the video signal separated by the sync signal separator 112, and records the mixed sound source on the hard disk 114 so that the sync signal is synchronized with the video signal.

The audio input unit 118 provides user audio through the microphone 116 to the audio mixing unit 120. The audio mixing unit 120 mixes the user audio through the audio input unit 118 and the accompaniment from the DVD loader 104 And supplies the mixed sound source to the audio switching unit 122.

The audio switching unit 122 switches the mixing sound source provided from the audio mixing unit 120 under the control of the control unit 102. The switched mixing sound source is supplied to the hard disk (not shown) together with the video signal through the video switching unit 110 114).

Hereinafter, a video / audio signal recording process in a hard disk built-in optical disk player according to another embodiment of the present invention will be described in detail with reference to the flowchart of FIG. 2 together with the above-described configuration.

2, in step S200, the control unit 102 determines whether a concert (or accompaniment) recording key is input from the key input unit 100. When a concert recording key (or accompaniment accompaniment) is input The process proceeds to step S202. The concert (or accompaniment) recording key is used to give a separate function to any key button provided on the key input unit 100, for example, a numeric key button, or a separate menu bar (manu bar may be set to be selected by the user, and this fact will be easily understood by those skilled in the art.

In step S202, the control unit 102 determines whether the accompaniment sound source is selected through the key input unit 100 in the arbitrary DVD loaded in the DVD loader 104. [

The control unit 102 determines whether two or more video signals are detected through the video input unit 108 as in step S204. If two or more video signals are detected, the control unit 102 proceeds to step S206 The process proceeds to step S208.

In step S206, the control unit 102 proceeds to the manual selection mode of the recorded image. The manual recording mode selection mode is a mode in which when a plurality of external inputs are connected to the video input unit 108, all connected external input information is displayed to the user, and then a user can select one of the external inputs Mode.

On the other hand, in the case of the automatic selection mode of the recorded image as in step S208, since only one external input is connected to the video input unit 108, that is, only the camera 106 is connected as shown in FIG. 1, The video switching unit 110 is controlled so that the video signal photographed by the camera 106 can be directly supplied to the hard disk 114 without going through a user selection process.

At this time, in step S210, the control unit 102 selects a video signal from the video switching unit 110 with reference to the sync signal of the video signal separated by the sync signal separating unit 112 and records the selected video signal on the hard disk 114 do. This process is necessary for recording the video signal on the hard disk 114 in synchronization with the mixing sound source as described later.

On the other hand, in step S212 and step S214, the control unit 102 plays back the selected accompaniment sound source selected from the arbitrary DVD loaded on the DVD loader 104, and at the same time determines whether the user's voice is input from the audio input unit 118 .

When the user's voice is input, the controller 102 proceeds to step S216 where the audio source for accompaniment and the user's voice from the audio input unit 118 to be reproduced through the DVD loader 104 are mixed through the audio mixing unit 120 .

The mixing sound source to be mixed is provided to the audio switching unit 122. The control unit 102 synchronizes the mixing sound source of the audio switching unit 122 with the video signal of the video switching unit 110, Lt; / RTI >

As described above, according to the present invention, in a hard disk built-in optical disk player, a mixed voice is recorded without an additional recording device using an internal switch, and recorded on a hard disk together with a video signal input from an external camera or the like to easily perform music accompaniment or concert recording .

According to the present invention, since the mixed voice is recorded without the additional recording equipment and is recorded on the hard disk together with the external video signal, it is possible to easily implement the song accompaniment or the concert recording function with low-cost system specifications. It is effective.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (7)

delete A recording apparatus for a hard disk built-in optical disk player, A DVD loader for reading a DVD on which an accompaniment sound source is recorded, Voice input means for inputting user voice, Audio mixing means for mixing the accompaniment sound source read out from the DVD loader and the user's voice input from the audio input means, Video input means for connecting at least one external video input, Control means for recording the mixing sound source and the video signal from the video input means from the audio mixing means to the hard disk when a video / audio recording key signal is applied, Video switching means for enabling a user to selectively store an external video input desired by the user in the hard disk when the number of external video inputs connected to the video input means is two or more, A synchronizing signal separating means for synchronizing the mixing sound source and the video signal to be recorded on the hard disk, And the video / audio signal recording system in the hard disk built-in optical disk player. 3. The method of claim 2, Wherein the video / audio recording key signal is a music accompaniment recording key signal. 3. The method of claim 2, Wherein the video / audio recording key signal is a concert recording key signal. delete A video / audio signal recording method in a hard disk built-in optical disk player, Determining whether a sound source for accompaniment is selected in any DVD loaded in the DVD loader when a video / audio recording key signal is applied; Connecting an external video input, Determining whether a user's voice is input through an external microphone while playing back the selected accompaniment sound source when the accompaniment sound source is selected from the DVD; Mixing the user sound and the accompaniment sound source reproduced through the DVD loader when the user's voice is input; Recording the mixed sound source and the video signal through the external video input on the hard disk; If at least two video signals are detected through the external video input, displaying all connected external input information to a user and then guiding the user to select one of the external inputs; If one video signal is detected through the external video input, providing the corresponding video signal to the hard disk Wherein the video / audio signal is recorded on the optical disk player. The method according to claim 6, The recording step includes: Wherein the mixing sound source is finally recorded on the hard disk in synchronization with the video signal through the external video input.

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