KR100257509B1 - Voice draw-off equipment at still mode of vcr - Google Patents

Abstract

PURPOSE: A device for delivering audio in a still mode of a VCR(Video Cassette Recorder), is provided to deliver audio stored by being played though a screen is stopped in a still mode, so that audio can be heard even in a still mode. CONSTITUTION: In a play mode, an audio head(1) reads audio signals recorded in a tape. The audio signals, of which noise is removed through an audio circuit(2), are restored to analog audio signals for outputting. The analog audio signals are respectively supplied to an analog/digital converter(3) and a switching unit(7). The switching unit(7) performs switching with a contact point(a), to output the analog audio signals outputted in the audio circuit(2) to external. The analog/digital converter(3) converts inputted analog audio signals into digital audio signals for outputting. The digital audio signals are stored in a memory(4). If a still mode is requested by key input of a user, a microcomputer outputs a mute signal to the audio circuit(2) for muting. The microcomputer controls a controller(6) to deliver audio signals stored in the memory(4). The digital audio signals outputted from the memory(4) are converted into analog audio signals through a digital/analog converter(5) for outputting. The outputted analog audio signals are supplied to the switching unit(7). The switching unit(7) is switched with a contact point(b) in a still mode, to output analog audio signals outputted in the digital/analog converter(5) to external. The memory(4) stores audio signals according to the request of the user. And the user repeats only desiring contents stored in the memory(4) predetermined number of times.

Description

Voice Transmission Device in Still Mode

1 is a schematic configuration diagram of a conventional V-Cal audio circuit.

2 is a block diagram of the voice transmission device in still mode of the present invention V-real.

3 is a flowchart for explaining the operation of FIG.

* Explanation of symbols for main parts of the drawings

2: voice circuit 3: analog / digital converter

4: Memory 5: Digital / Analog Converter

6 control unit 7 switching unit

The present invention relates to a voice transmission device in still mode of V-Cal. In particular, the still image in still mode is transmitted, but the still image is reproduced and sent out so that the voice can be heard in still mode. Relates to a device.

In general, the still mode of V-Cal is to freeze the image and mute the audio.

In the still mode function of the VR, the conventional VR circuit has a voice head 100 that reads a voice signal recorded on a tape, as shown in FIG. And a muting unit 102 for muting the voice signal output from the voice circuit 101. The voice circuit 101 restores the voice signal obtained from the head 100 to the original voice signal.

When the voice circuit operation of the conventional V-Cal configured as described above is described in detail, first, the voice head 100 reads the voice signal recorded on the tape.

The voice signal read as described above is outputted after the noise is removed and the original voice signal is restored through the voice circuit 101.

On the other hand, if there is a request for a still mode or a shift mode in response to a user's key input while playing, the microcomputer (not shown in the drawing) recognizes this and sends a ″ high ″ signal to the muting unit 102 as a control signal. Output it.

At the time of reproduction, the microcomputer outputs a ″ low ″ signal as a control signal to stop the operation of the muting unit 102.

On the other hand, when the ″ high ″ signal is input to the muting unit 102, the switching element Q1 in the muting unit 102 is turned on by the ″ high ″ signal, and the switching element Q1 is turned on. All of the voice signals output from the voice circuit 101 flow to the ground through the emitter of the switching element Q1, so that the voice cannot be heard outside in the still mode or the shift mode.

However, the conventional V-Cal's voice circuit mutes the voice unconditionally in the still mode or the shift mode. In general, when the user requests the still mode, the voice circuit is muted.

Accordingly, an object of the present invention is to provide a voice transmission device in still mode so that the voice can be listened to even in still mode by transmitting the stored sound while the screen is still in still mode.

The object of the present invention is an analog / digital conversion means for converting an analog audio signal transmitted from a voice circuit into a digital audio signal, a memory for storing the digital audio signal output from the analog / digital conversion means, and stored in the memory. A digital / analog converting means for converting and outputting a digital speech signal into an analog speech signal, and a control means for controlling the analog / digital converting means, memory, and analog / digital converting means are provided below. Referring to the drawings as follows.

2 is a block diagram of a voice transmission device in still mode of the present invention VLC, a voice head 1 for reading a voice signal recorded on a tape, and the voice head 1 as shown in FIG. An audio circuit 2 for removing noise of the audio signal output from the audio signal, restoring the original audio signal, and outputting the original audio signal, and an analog / digital converter for converting the analog speech signal transmitted from the audio circuit 2 into a digital audio signal. (3), a memory (4) for storing the digital voice signal output from the analog / digital converter (3), and a digital signal for converting the digital voice signal stored in the memory (4) into an analog voice signal and outputting the analog voice signal. And a control unit 6 for controlling the analog / digital converter 5, the analog / digital converter 3, the memory 4, and the digital / analog converter 5, and the audio circuit according to an external control signal. 2) and digital / analog converter (5) It consists of a switching unit 7 for switching and outputting the audio signal respectively output from.

The operation and effects of the voice transmission device in the still mode of the present invention VLC configured as described above will be described in detail with reference to FIG. 3.

At the time of reproduction, the audio head 1 reads the audio signal recorded on the tape. Thus, the audio signal read out through the voice head 1 is removed from the audio circuit 2 and the original analog voice is removed. The signal is recovered and output.

The analog audio signal output from the audio circuit 2 is applied to the analog / digital converter 3 and the switching unit 7, respectively, wherein the switching unit 7 is switched by an external control signal (S / W). Is switched to the contact point a to output an analog audio signal output from the audio circuit 2 to the outside.

Meanwhile, the analog / digital conversion unit 3 converts the input analog voice signal into a digital voice signal and outputs the digital voice signal. The digital voice signal thus output is stored in the memory 4.

In such a state, if a still mode is required according to a user's key input, the microcomputer (not shown) outputs a control signal (Mute) to the voice circuit 2 to mute.

In addition, the control unit 6 controls the voice signal stored in the memory 4 to be transmitted, and the digital voice signal output from the memory 4 is converted into an analog voice signal through the digital / analog converter 5 and outputted. The analog audio signal output in this way is applied to the switching unit 7.

In the still mode, the switching unit 7 switches the switch S / W to the contact point b by an external control signal, and accordingly, the analog audio signal output from the digital / analog converter 5 is transmitted to the outside. (Audio output).

The memory 4 stores the voice signal according to the user's request, and the user may repeat only the desired portion of the contents of the memory 4 a predetermined number of times.

As described in detail above, the present invention has the effect of listening to the voice even in the still mode, and also has the effect of repeatedly listening to the desired voice of the user.

Claims (2)

An analog / digital conversion means for converting an analog audio signal sequentially through a voice head and a voice circuit into a digital audio signal, a memory for storing the digital audio signal obtained from the analog / digital conversion means, and a digital audio signal stored in the memory. Digital / analog converting means for converting the signal into an analog voice signal under the control of the controller, and switching means for switching and outputting the audio signal output from the voice circuit and the digital / analog converting means, respectively, according to an external control signal. Voice transmission device in the still mode of the V-Cal. The apparatus of claim 1, wherein the control unit repeatedly outputs the voice data stored in the memory.