KR100681652B1 - Writing device of optical disc and method for recording thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc recording apparatus and a reserved recording method, and more particularly, to an input unit for receiving an audio multiple audio signal and separating the same into a stereo audio signal and a bilingual broadcast audio signal, and an input unit in two languages. An MTS IC that separates the broadcast audio signal into first and second channels, and a stereo audio signal instead of one of the audio signals of the bilingual broadcast of the first and second channels transmitted from the MTS IC to switch to another channel. The ADC converts the audio signal of the language broadcast of one channel and the stereo audio signal of the other channel into a digital signal transmitted from the MTS IC, and controls the switch in response to the reserved recording key signal of the voice multicast. And a control unit for controlling the recording of the converted audio signal and the stereo audio signal on an optical disc. . Therefore, the present invention records a stereo audio signal in a first channel and an audio signal of a bilingual broadcast in a second channel in a reserved recording of a TV broadcast on an optical disc. You can listen to by playing.

Optical Disc Recorder, Scheduled Recording, Voice Multiple

Description

Optical disc recorder and scheduled recording method {WRITING DEVICE OF OPTICAL DISC AND METHOD FOR RECORDING THEREOF}

1 is a circuit block diagram schematically showing an optical disc recording apparatus according to the present invention;

2 is a flowchart sequentially showing a reserved recording method of an optical disk recording apparatus according to the present invention;

<Description of the code | symbol about the principal part of drawing>

10 optical disc 20 optical recording unit

30: DSP 40: MUX

50: video encoder 60: audio encoder

62: input unit 64: MTS IC

66: switch 68: ADC

70: key input unit 80: control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc recording apparatus and a reservation recording method, and more particularly, to an optical disc recording apparatus and a reservation recording method capable of simultaneously recording stereo and bilingual audio at the time of broadcast reservation recording.

DVD, a large-capacity, high-density optical disc that can record and store high-quality video data or high-quality audio data for a long time, has been widely used and commercialized. DVD-ROM (DVD-Random Only Memory), which is dedicated to playback, is recorded once. DVD-Recordable (DVD-R), DVD-Random Access Memory (DVD-RAM), DVD-ReWritable (DVD-RW), and the like are available.

Among them, the recordable DVD-RW and DVD-RAM optical disc recording devices are connected to the TV to record TV broadcasts. Among them, the scheduled recording function automatically reserves the scheduled recording time when the desired TV broadcast channel and broadcast time are set. Selected TV broadcast channels are recorded on the optical disc.

Meanwhile, an audio signal of a TV broadcast is transmitted through at least two audio channels, and the optical disc recording apparatus also includes an audio encoder for processing two audio channels (L channel and R channel) of the TV broadcast, respectively.

In general, the simultaneous broadcasting of another signal superimposed on an audio signal of a TV broadcast is called "voice multiplexing". Such voice multiplexing enables a stereo TV broadcast or a TV broadcast service supporting two languages. For example, in the case of stereo TV broadcasting, an L + R audio signal is carried on a first channel and an L-R audio signal is transmitted on a second channel. In the case of a bilingual TV broadcast (SAP: Second Audio Program), a Korean language signal is transmitted on a first channel and a foreign language (eg, English, Spanish) signal is transmitted on a second channel.

However, the optical disk recording apparatus according to the prior art selects the selected audio multi-mode because the audio signal cannot be recorded in both stereo and bilingual broadcast (SAP) audio during the scheduled recording of the audio-multi TV broadcast signal. I had to make a reservation recording only in (stereo / 2 languages). In other words, if the recording mode of the optical disc recorder is not set to the audio multi mode of the bilingual broadcast (SAP), the bilingual audio signal cannot be recorded. If the audio disc recording device is not set to the audio multi mode of the stereo broadcasting, the stereo audio can be recorded. Not only was it not possible to simultaneously schedule recording with stereo and bilingual audio signals.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems of the prior art, by recording stereo audio signals in a first channel and bilingual audio signals in a second channel in a reserved recording of a TV broadcast. Disclosed are an optical disc recording apparatus and a reserved recording method capable of reproducing and listening to a stereo or bilingual audio signal in a desired voice multi-mode.

In order to achieve the above object, the present invention provides an optical disc recording apparatus comprising: an input unit for receiving an audio multiple audio signal and separating the audio audio signal into a stereo audio signal and a bilingual broadcast audio signal; And a switch for switching a stereo audio signal to another channel instead of either one of an MTS IC separating into a second channel and an audio signal of a bilingual broadcast of the first and second channels transmitted from the MTS IC, and from the MTS IC. The ADC converts the audio signal of the language broadcast of one channel and the stereo audio signal of the other channel into a digital signal, and controls the switch in response to the reserved recording key signal of the voice multicast, thereby converting the audio of the language broadcast converted by the ADC. And a control unit for controlling to record the signal and the stereo audio signal to the optical disc.

In order to achieve the above object, the method of the present invention is a reservation recording method of an optical disc recording apparatus, wherein when a reserved recording time of voice multicasting is reached, instead of any one of audio signals of two-language broadcasting of first and second channels. Switching the stereo audio signal to another channel, converting the audio signal of the language broadcast of one channel and the stereo audio signal of the other channel into a digital signal, and the audio signal and stereo of the language broadcast converted to the digital signal. Recording the audio signal on an optical disc.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

1 is a circuit block diagram schematically showing an optical disk recording apparatus according to the present invention.

Referring to FIG. 1, an optical disc recording apparatus according to the present invention includes an optical recording unit 20, a DSP 30, a MUX 40, a video encoder 50, an audio encoder 60, and a key input unit ( 70, control unit 80, and the like.

The optical recorder 20 records data on the optical disc 10, and the DSP 30 digitally processes the video and audio data transmitted from the MUX 40 and transmits the digital signal to the optical recorder 20.

The MUX 40 synthesizes the MPEG compressed video data and the audio data transmitted from the video encoder 50 and delivers the synthesized audio data to the DSP 30.

The video encoder 50 encodes the video signal transmitted from the TV or tuner using MPEG compression technology and delivers it to the MUX 40.

The audio encoder 60 according to the present invention receives an audio multiple audio signal transmitted from a TV or a tuner, and receives the stereo audio signal (STERO_ (L + R) / 2) and the bilingual broadcast (SAP) audio signal (SIF). MTS IC 64 and MTS IC 64 that separate the two-language broadcast (SAP) audio signal of the input unit 62 into the first and second channels SAP_R and SAP_L. The first and second signals transmitted from the MTS IC 64 by switching the stereo audio signal STO_ (L + R) / 2 to any one of the first and second channel audio signals SAP_R and SAP_L delivered from the The switch 66 switches to another channel audio signal among the channel audio signals SAP_R and SAP_L, and the one channel audio signal and the switch 66 of the two-language broadcast (SAP) transmitted from the MTS IC 64. And an ADC 68 for converting the audio signal into a digital signal and delivering the same to the MUX 40.

The key input unit 70 receives a key signal received from a key button or a remote controller of the optical disk recording apparatus and provides the same to the controller 80.

The controller 80 controls the overall components of the optical disc recording apparatus. When the reserved recording key is input from the key input unit 70 according to the present invention, the controller 80 controls the switch 66 of the audio encoder 60 to control the MTS IC 64. To block the second channel audio signal SAP_L of the two-language broadcast (SAP) transmitted from and to provide the ADC 68 with the stereo audio signal (STERO_ (L + R) / 2) transmitted from the input unit 62. do.

Therefore, in the optical disc recording apparatus according to the present invention, when the reserved recording key signal is input from the key input unit 70, the control unit 80 switches the switch 66 of the audio encoder 60 at the set reserved recording time to perform stereo audio. By passing the signal STERO_ (L + R) / 2 to the ADC 68, the first channel audio signal SAP_R of the bilingual broadcast (SAP) and the stereo audio signal STERO_ (L +) are eventually transmitted by the ADC 68. R) / 2) are converted together into digital signals and transferred to the MUX 40 to the optical recording section 20 so as to be recorded (recorded) on the optical disc 10.

Subsequently, when the voice multi-mode selection key of the two-language broadcast is input from the key input unit 70, the controller 80 picks up the audio signal recorded on the optical disc 10 and decodes the audio signal. Outputs When the voice multi-mode selection key of the stereo broadcast is input from the key input unit 70, the controller 80 picks up the audio signal recorded on the optical disc 10, decodes the audio signal, and outputs the audio signal of the stereo broadcast.

2 is a flowchart sequentially showing a reserved recording method of the optical disk recording apparatus according to the present invention. 1 and 2, the reservation recording method of the optical disc recording apparatus according to the present invention proceeds as follows.

First, the controller 80 determines whether the preset recording time is specified (S10).

As a result of the determination in S10, when the current time is a preset recording time, the controller 80 determines whether a control mode for simultaneously recording a stereo audio signal of a voice multi-mode and an audio signal of two languages is selected (S20). In the control mode, it is determined whether or not a key signal for selecting audio simultaneous recording in the voice multiple mode is input from the key input unit 70.

As a result of the determination in S20, when the stereo / two-language broadcasting audio simultaneous recording selection key signal of the voice multi-mode is input, the controller 80 sends a control signal to the switch 66 of the audio encoder 60. Accordingly, the switch 66 of the audio encoder 60 is switched to transfer the stereo audio signal STERO_ (L + R) / 2 received at the stereo port of the input unit 62 to the ADC 68. (S30 )

The two-language broadcast (SAP) audio signal (SIF) is transmitted to the MTS IC 64 from the voice multi-audio signal of the TV or tuner transmitted to the input unit 62, and the two-language broadcast ( SAP) The audio signal is separated into first and second channels SAP_R and SAP_L. The bilingual broadcast audio signal of the first channel (SAP_R) of the bilingual broadcast (SAP) audio signals separated by the MTS IC 64 is transmitted to the ADC 68. At the same time, the stereo audio signal (STERO_ (L + R) / 2) received by the switch 66 at the stereo port of the input unit 62 is also transmitted to the ADC 68. The ADC 68 is the first channel audio signal SAP_R of the bilingual broadcast (SAP) transmitted from the MTS IC 64 and the stereo audio signal (STERO_ (L + R) / 2) transmitted through the switch 66. ) Is converted into a digital signal and transmitted to the MUX 40.

The MUX 40 is a first channel audio signal SAP_R and a stereo audio signal STERO_ (L) of two-language broadcast (SAP) of the MPEG compressed video data transmitted through the video encoder 50 and the audio encoder 60. + R) / 2) and synthesize it and deliver it to the DSP 30. The DSP 30 transmits the video and audio data (the bilingual broadcast audio + stereo audio signal of the first channel) transmitted from the MUX 40. After the digital signal processing, the optical recording unit 20 records (records) the optical disk 10 (S40).

On the other hand, if it is determined in S20 that the stereo / two language broadcast audio simultaneous recording selection key signal of the voice multi-mode is not input and the voice multi-mode is selected as the bilingual broadcast mode, the control unit 80 controls the audio encoder 60. Control signal is sent to the switch 66 of the audio encoder 60 to switch the switch 66 of the audio encoder 60 to convert the stereo audio signal (STERO_ (L + R) / 2) received at the stereo port of the input unit 62 to the ADC 68 And transmits the two-language broadcast (SAP) audio signal SAP_R of the second channel of the MTS IC 64 to the ADC 68 without transmitting the signal to the ADC 68 (S50).

Accordingly, the two-language broadcast (SAP) audio signal (SIF) is transmitted to the MTS IC 64 in the audio multiple audio signal of the TV or tuner transmitted to the input unit 62, and the two-language broadcast is transmitted by the MTS IC 64. (SAP) separates the audio signal into the first and second channels (SAP_R, SAP_L) and transmits to the ADC 68, the ADC 68 is two of the first and second channels transmitted from the MTS IC (64) The language broadcast (SAP) audio signals SAP_R and SAP_L are converted into digital signals and transferred to the optical recording unit 20 through the MUX 40 to the DSP 30 to record (record) the optical disk 10 (S60). )

On the other hand, although not shown in the figure, when the S20 determination result, when the stereo / two language broadcast audio simultaneous recording selection key signal of the audio multi-mode is not input and the voice multi-mode is selected as the stereo broadcast mode, the controller 80 Sends a control signal to the switch 66 of the audio encoder 60 to switch the switch 66 of the audio encoder 60 to receive the stereo audio signal (STERO_ (L + R) /) received at the stereo port of the input unit 62. 2) to the ADC 68. Accordingly, the ADC 68 converts the stereo audio signal (STERO_ (L + R) / 2) into a digital signal and transfers it to the optical recording unit 20 through the MUX 40 to the DSP 30 to the optical disc 10. Record (record).

As described above, the present invention records stereo or two audio signals in a first channel, and audio signals of two language broadcasts in a second channel on an optical disc during scheduled recording of a TV broadcast. Can listen to and play the audio signal of the language.

On the other hand, the present invention is not limited to the above-described embodiment, various modifications are possible by those skilled in the art within the spirit and scope of the present invention described in the claims to be described later.

Claims (2)

In the optical disk recording apparatus, An input unit which receives an audio multiple audio signal and separates it into a stereo audio signal and a bilingual broadcast audio signal; An MTS IC for separating two language broadcast audio signals of an input into first and second channels; A switch for switching the stereo audio signal to another channel instead of one of the audio signals of the bilingual broadcast of the first and second channels transmitted from the MTS IC; An ADC for converting an audio signal of a language broadcast of one channel and a stereo audio signal of another channel from the MTS IC into a digital signal; A control unit controlling the switch in response to a reserved recording key signal of voice multicasting to record an audio signal and a stereo audio signal of a language broadcast converted by the ADC on the optical disc Optical disc recording device comprising a. In the reserved recording method of the optical disk recording apparatus, Switching the stereo audio signal to another channel instead of one of the audio signals of the bilingual broadcast of the first and second channels when the scheduled recording time of the voice multicasting is reached; Converting an audio signal of a language broadcast of one channel and a stereo audio signal of another channel into a digital signal; Recording an audio signal and a stereo audio signal of a language broadcast converted into the digital signal on the optical disc; Schedule recording method of the optical disk recording device comprising a.

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