KR0138360B1 - Recording device of image and voice signal in video telephone - Google Patents

Abstract

The present invention relates to a video / audio signal recording method and apparatus for recording video and audio signals of a video telephone. A video / audio signal recording apparatus of a video telephone comprising: a first video signal processing means for signal processing an image signal input through a telephone line and a first audio signal processing means for signal processing an audio signal. Instruction means for instructing a command as to whether or not a user records image signals and audio signals; Buffer means for buffering an image signal and an audio signal input through a telephone line; Second image signal processing means for signal processing so that the image signal output from the buffer means can be recorded on a predetermined recording medium; Second audio signal processing means for signal processing so that the audio signal output from the buffer means can be recorded on the recording medium; Control means for recognizing a command of the command means and controlling the buffering of the image signal and the audio signal and the operation of recording the processed image signal and the audio signal; And recording means for recording the image signal and the audio signal processed in accordance with the control signal supplied from the control means. Therefore, there is an effect that the video signal and the audio signal input through the telephone line of the video telephone can be automatically recorded on a predetermined recording medium according to the user's needs or automatically.

Description

Video / audio signal recording device of video telephone

1 is a block diagram showing a receiving unit of a general video telephone.

2 is a block diagram according to an embodiment of a video / audio signal recording apparatus of a video telephone according to the present invention.

3 is a flowchart showing the operation of the controller in FIG.

4 is a block diagram according to another embodiment of a video / audio signal recording apparatus of a video telephone according to the present invention.

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

10: telephone line 20, 21, 70: image signal processing unit

30, 31, 80: voice signal processing unit 40: command unit

41: level detection unit 50, 51: control unit

60, 61, 62: buffer 90: recording unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to video telephones, and more particularly, to a video / audio signal recording apparatus of a video telephone for recording video signals and audio signals input through a telephone line.

In general, a video telephone is used to transmit and receive not only audio but also still images of a talker or receiver taken by a camera through a telephone line, and an image signal is transmitted or received by a transmitting circuit or a receiving circuit.

FIG. 1 is a block diagram showing a receiving circuit of a general video telephone. The video signal and audio signal input through the telephone line 10 of the video telephone are signal-processed by the image signal processing unit 20 according to respective paths. The audio signal is output to the monitor of a predetermined standard, and the audio signal is processed by the audio signal processor 30 and output as an analog audio signal to the receiver.

However, since such a video telephone is not provided with a separate recording device, it is inconvenient to record when an image signal and an audio signal received are recorded on a predetermined recording medium according to a user's needs.

It is therefore an object of the present invention to provide an image / audio signal recording apparatus of a video telephone for recording an image signal and an audio signal input through a telephone line to a predetermined recording medium in accordance with a user's needs.

Another object of the present invention is to provide an image / audio signal recording apparatus of a video telephone for automatically recording a video signal and an audio signal input through a telephone line to a predetermined recording medium.

In order to achieve the above object, the present invention provides an image / video of a video telephone having a first image signal processing means for signal processing an image signal input through a telephone line, and a first audio signal processing means for signal processing an audio signal. An audio signal recording apparatus comprising: buffer means for a user to buffer the image signal and the audio signal; Second image signal processing means for processing a signal such that an image signal of the image signal and audio signal output from the buffer means can be recorded on a predetermined recording medium; Second image signal processing means for processing a signal such that an audio signal of the image signal and the audio signal output from the buffer means can be recorded on the recording medium; Control means for recognizing a command of the command means and controlling an operation of buffering the image signal and the audio signal in the buffer means and recording the processed image signal and the audio signal on the recording medium; And recording means for recording the image signal and the audio signal processed by the second image signal processing means and the second audio signal processing means on the recording medium according to a control signal supplied from the control means. It is characterized by.

In order to achieve the above object, the present invention provides an image / audio signal recording of a video telephone having a video signal processing means for signal processing an image signal input through a telephone line, and a voice signal processing means for signal processing a voice signal. An apparatus comprising: level sensing means for sensing a level of an image signal or an audio signal output from said image signal processing means or said audio signal processing means; First buffer means for buffering an image signal output from said image signal processing means; Second buffer means for buffering a voice signal output from said voice signal processing means; Recording of the buffered image signal and the audio signal on the recording medium by the first buffer means and the second buffer means in accordance with the signal output from the level sensing means; Control means for controlling; And recording means for recording the image signal and the audio signal processed by the image signal processing means and the audio signal processing means on the recording medium according to the control signal supplied from the control means. .

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

2 is a block diagram according to an embodiment of the image / audio signal recording apparatus according to the present invention.

The configuration of the block diagram shown in FIG. 2 includes a first image signal processor 20 for inputting an image signal input through a telephone line 10 of a video telephone, and a telephone line 10 inputted through a telephone line 10 of a video telephone. A first audio signal processor 30 for inputting a voice signal, a command unit 40 for instructing a user as to whether or not to record an image signal and an audio signal, and a telephone line 10 A buffer 60 for buffering the image signal and the audio signal, and a second image signal processor for signal processing such that the image signal among the image signal and the audio signal output from the buffer 60 can be recorded on a predetermined recording medium ( 70 and a second audio signal processor 80 for processing a signal to record the audio signal of the image signal and the audio signal output from the buffer 60 to the recording medium, and the command from the command unit 40. Image and audio signals from the buffer 60 A control unit 50 for controlling the operation of recording a ring and recording the processed signal and audio signal on a recording medium, and a second image signal processing unit 70 and a second in accordance with a control signal supplied from the control unit 50. And a recording unit 90 for recording the image signal and the audio signal processed by the audio signal processing unit 80 on the recording medium.

FIG. 3 is a flowchart illustrating the operation of the controller 50 in FIG. 2. Steps 110 to 130 control the recording operation of the recording unit 90 when the user wants to record the image signal and the audio signal on the recording medium. Steps 140 to 170 are for controlling the recording stop operation of the recording unit 90 when the user wants to stop the recording operation.

4 is a block diagram according to another embodiment of the image / audio signal recording apparatus according to the present invention.

The configuration of the block diagram shown in FIG. 4 includes an image signal processing unit 21 for inputting an image signal input through the telephone line 10 of the video telephone, and an audio signal input through the telephone line 10 of the video telephone. An audio signal processor 31 for inputting a signal, a level detector 41 for detecting a level of an image signal or an audio signal output from the image signal processor 21 or the audio signal processor 31, and an image signal processor In the first buffer 61 for buffering the image signal output from the (21), the second buffer 62 for buffering the audio signal output from the audio signal processing unit 31, and the level sensing unit 41 A control unit 51 for controlling whether the first and second buffers 61 and 62 buffer the image signals and the audio signals, and the operation of recording the buffered image and audio signals on the recording medium according to the output signal. And according to a control signal supplied from the controller 51 It consists of a signal processor 21 and the audio signal processing section 31, recording section 91 for recording the processed image signal and audio signal on the recording medium from the signal.

The operation of the present invention will now be described with reference to FIG. 2, FIG. 3 and FIG.

Referring to the operation according to the configuration shown in FIG. 2, first, an example of using a general video cassette recorder (VCR) as the recording unit 90 will be described.

Here, the command unit 40, the control unit 50, the buffer 60, the second image signal processing unit 70 and the second audio signal processing unit 80 may be mounted inside the recording unit 90 or inside the video telephone. It can be used as a separate package.

Since the first image signal processing unit 20 and the first audio signal processing unit 30 operate in the same manner as the image signal processing unit 20 and the audio signal processing unit 30 in FIG. 1, descriptions thereof will be omitted.

When the command unit 40 detects a signal through the telephone line 10 of the video telephone, the command unit 40 determines whether to record an image signal and an audio signal input through the telephone line 10 to the recording medium and instructs the command. .

The buffer 60 is a three-state and is used to buffer the video and audio signals input through the telephone line 10 of the video telephone, and is supplied from the controller 50 described later (a). When the control signal is turned on, the image signal and the audio signal are buffered and applied to the second image signal processor 70 and the second audio signal processor 80. At this time, the video signal and the audio signal input through the telephone line 10 of the video telephone are also applied to the first image signal processing unit 20 and the first audio signal processing unit 30 of the receiving circuit of the video telephone, so that a call can be made.

The second image signal processing unit 70 processes the signal so that the image signal output from the buffer 60 can be recorded on the recording medium, and outputs it to the VCR which is the recording unit 90.

The second audio signal processor 80 processes the audio signal output from the buffer 60 to record on the recording medium, and outputs the audio signal to the VCR, which is the recording unit 90.

The control unit 50 is for controlling the buffer 60 and the recording unit 90 by recognizing the command output from the command unit 40, the image input from the command unit 40 via the telephone line 10 of the video telephone. When a command for recording a signal and an audio signal is instructed (step 110) (a) the control signal is turned on (step 120) and the buffer 60 is turned on to turn on the second image signal processor 70 and the second signal. The image signal and the audio signal are applied to the audio signal processing unit 80, (b) the control signal is turned on (step 130), and the recording signal b is applied to the recording unit 90 to record the image signal and the audio signal. Subsequently, when the command unit 40 instructs a command to stop recording (step 140) (a) by turning off the control signal (step 150), the buffer 60 is turned off and the second image signal processor ( 70) and the second audio signal processor 80 to prevent the image signal and the audio signal from being applied, and (c) turn on the control signal (the In step 160, a recording stop signal c is applied to prevent the recording unit 90 from recording the image signal and the audio signal, and (b) the control signal is turned off (step 170).

The recording unit 90 outputs an image signal and an audio signal output from the second image signal processing unit 70 and the second audio signal processing unit 80 according to (b) control signals and (c) control signals output from the control unit 50. Recording on the recording medium or stop recording in accordance with the flow of a known VCR recorder.

Referring to the operation according to the configuration of FIG. 4, first, a general video cassette recorder (VCR) is used as the recording unit 919 as in FIG.

As in FIG. 2, the level detecting unit 41, the control unit 51, the first buffer 61 and the second buffer 62 may be mounted inside the recording unit 61 or inside the video telephone. It can also be used as a package.

Since the image signal processing unit 21, the audio signal processing unit 31, and the recording unit 91 operate in the same manner as the first image signal processing unit 20, the first audio signal processing unit 30, and the recording unit 90 in FIG. The description will be omitted here.

The level detector 41 detects the level of the image signal or the audio signal output from the image signal processor 21 or the audio signal processor 31.

The first buffer 61 is for buffering the image signal output from the image signal processing unit 21, and the second buffer 62 is for buffering the audio signal output from the audio signal processing unit 31.

The control unit 51 controls whether the first and second buffers 61 and 62 buffer the image signal and the audio signal and the recording unit 91 according to the value of the signal output from the level detecting unit 41. That is, when the output signal of the level detection unit 41 is equal to or greater than the reference signal value by comparing the output signal of the level detection unit 41 with the predetermined reference signal value of the control unit 51, (a) the control signal and (b). The first and second buffers 61 and 62 are turned on by using a control signal to control the image signal and the audio signal to be recorded on the recording medium, and the output signal of the level sensing unit 41 is a reference signal. When the value is less than the value, the (a) control signal and (c) control signal are used to turn off the first buffer 61 and the second buffer 62 so that the output image signal and audio signal are not recorded on the recording medium.

As described above, in the video and audio signal recording method and apparatus of the video telephone according to the present invention, the video telephone and the magnetic tape recording and reproducing apparatus are combined to automatically and automatically adjust the video and audio signals input through the telephone line according to the user's needs. There is an effect that can be recorded on the recording medium.

Claims (3)

In the image / audio signal recording apparatus of a video telephone having a first image signal processing means for signal processing an image signal input through a telephone line, and a first audio signal processing means for signal processing an audio signal, Instruction means for instructing a user whether or not to record the image signal and the audio signal; Buffer means for buffering an image signal and an audio signal input through said telephone line; Second image signal processing means for processing a signal such that an image signal of the image signal and audio signal output from the buffer means can be recorded on a predetermined recording medium; Second audio signal processing means for processing a signal so as to record an audio signal of the image signal and the audio signal output from the buffer means on the recording medium; Control means for recognizing a command of the command means and controlling an operation of buffering the image signal and the audio signal in the buffer means and recording the processed image signal and the audio signal on the recording medium; And And recording means for recording the image signal and the audio signal processed by the second image signal processing means and the second audio signal processing means on the recording medium according to the control signal supplied from the control means. An image / audio signal recording apparatus of a video telephone. An image / audio signal recording apparatus of a video telephone having a video signal processing system for signal processing an image signal input through a telephone line, and audio signal processing means for signal processing an audio signal, Level sensing means for sensing the level of the image signal or the audio signal output from said image signal processing means or said audio signal processing means; First buffer means for buffering an image signal output from said image signal processing means; Second buffer means for buffering a voice signal output from said voice signal processing means; Recording of the buffered image signal and the audio signal on the recording medium by the first buffer means and the second buffer means in accordance with the signal output from the level sensing means; Control means for controlling; And And recording means for recording the image signal and the audio signal processed by the image signal processing means and the audio signal processing means on the recording medium in accordance with a control signal supplied from the control means. Image / audio signal recording device. 3. The method of claim 2, wherein the control means compares the output signal of the level sensing means with a predetermined reference signal value and outputs the first buffer means and the second buffer when the output signal of the level sensing means is greater than or equal to the reference signal value. And recording means for recording the image signal and the audio signal to be output on the recording medium.