KR970010140B1 - Method and apparatus for switching audio signals and video signals - Google Patents

Abstract

Microcomputer(1) receives the user selecting signal by control of self setting button and remote controller and outputs the function of relevant TV and the signal to switch selectively a large number of audio/video sets respectively. Frequency conversion part(2) receives the signal from the microcomputer(1) to output a middle frequency, and an audio processing part(3) processes audio signal from the middle frequency of frequency conversion part(2), and video processing part(4) processes video signal out of the middle frequency of frequency conversion part(2). AV switching part(5) is connected to audio processing part(3) and video processing part(4) and receives the signal of microcomputer(10) based on choice of user, and then selects a large number of video set(6-8) to switch, therefore wanted dubbing is realized.

Description

Audio / Video Switching Device and Method

1 is a block diagram showing an embodiment of an audio / video switching device according to the present invention.

2 is a flowchart illustrating an embodiment of an audio / video switching method according to the present invention.

3 is a flowchart illustrating selective recording of video and audio according to another embodiment of an audio / video switching method according to the present invention.

* Explanation of symbols for main parts of the drawings

1: microcomputer 2: frequency converter

3: audio processing unit 4: image processing unit

5: AV switching unit 6: to

7: video equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to audio / video (AV) switching. In particular, when a plurality of AV devices are connected to a television to dub each other, the source and destination of the desired dubbing is pushed with a button. The present invention relates to an audio / video switching device and a method suitable for enabling the determination of the distance.

In the case of editing a film using a conventional video device, it is necessary to connect the AV input / output terminals between the videos or the video to be edited to the AV terminal of the television.

For example, if you are using a regular VHS video as an editing VCR and using an 8mm camcorder for playback, or if you want to copy from a VHS tape to an 8mm camcorder, you must unplug the TV's AV code and connect it again to use it. There was an inconvenience.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and an audio / video switching device capable of determining the source and destination of dubbing at the touch of a button when AV equipment is connected to multiple TVs and dubbed together. The purpose is to provide a method.

The present invention for achieving the above object is a microcomputer receiving a user selection signal by operating the remote control or self-mounted button, a frequency converter for outputting an intermediate frequency in accordance with the signal of the microcomputer, the frequency converter is connected to the voice signal An audio / video apparatus having an audio processing unit for processing and an image processing unit for processing a video signal connected to the frequency converting unit, wherein the audio / video unit is connected to the audio processing unit and the image processing unit to generate a plurality of signals by a microcomputer signal according to a user's selection. And audio / video switching means for selectively switching audio / video equipment.

In addition, when the user wants to switch from the audio / video device in use to another device, the audio / video switching means determines whether to switch to the device to be switched in sequence. Characterized in that it comprises a step.

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

Referring to FIG. 1, FIG. 1 is a block diagram showing an embodiment of an audio / video switching apparatus according to the present invention. The microcomputer 1 and the microcomputer 1 that receive a user selection signal by operating a remote controller or a self-mounting button are illustrated in FIG. Is connected to a frequency converter 2 that outputs an intermediate frequency in accordance with the signal of (), a voice processor (3) that is connected to the frequency converter (2), and processes a video signal, and processes a video signal. Connected to the image processing unit 4, the audio processing unit 3, and the image processing unit 4 to selectively switch the plurality of video devices 6 to 8 by receiving a signal from the microcomputer 1 according to a user's selection. It consists of the AV switching part 5.

The present invention made as described above with reference to FIGS. 2 and 3, first, the microcomputer 1 receives a user selection signal by operating a remote control or a self-mounted button, and the function of the television and a plurality of audio / video devices. Output a signal for selectively switching.

Next, the frequency converter 2 receives the signal of the microcomputer 1 and outputs an intermediate frequency, and the audio processor 3 processes an audio signal among the intermediate frequencies of the frequency converter 2, and the image processor 4. ) Processes an image signal among the intermediate frequencies of the frequency converter 2.

Subsequently, the AV switching unit 5 is connected to the audio processing unit 3 and the image processing unit 4 to selectively switch the plurality of video devices 6 to 8 by receiving a signal from the microcomputer 1 according to a user's selection. To achieve the desired dubbing.

2 is a flowchart illustrating an embodiment of an audio / video switching method according to the present invention. First, when switching from video 1 to video 2 set as the first video, the video 1 to video 2 is switched and terminated (21, 22) If you are not transitioning from Video 1 to Video 2 but switching from Video 1 to Video 3, switch from Video 1 to Video 3 and exit (23,24), and not from Video 1 to Video 3, but from Video 2 When switching to video 3, switch from video 2 to video 3 and exit (25, 26).

Next, if you do not switch from Video 2 to Video 3 but switch from Video 2 to Video 1, switch from Video 2 to Video 1 and exit (27,28), and not from Video 2 to Video 1, but from Video 3 to Video In the case of the first switch, the video 3 to the video 1 is switched and terminated (29, 30). If the video 3 is not converted from the video 1 to the video 2, the video is terminated (31, 32).

Here, the video 1 to 3 are not special names, but are randomly numbered sequentially for easy identification, and the video and audio used below are also numbered for easy identification.

3 is a flowchart illustrating selective recording of video and audio according to another embodiment of the audio / video switching method according to the present invention. First, when switching from image 1 to image 2 (41), the image of video 1 is switched to video 2. Then switch (42) from voice 1 to voice 2 (43) to switch voice 1 to voice 2 (44) and not from voice 1 to voice 2 (43) but from voice 3 to voice 2 (45). The voice 3 is switched to voice 2 and terminates, and the voice 3 to voice 2 transition is terminated (46).

Next, if it is not the transition from image 1 to image 2 (41) and the transition from image 2 to image 3 (47), the image of video 2 is switched to video 3 (48) and then the transition from audio 1 to audio 3 ( 49) If voice 1 is switched to voice 3 (50) and not from voice 1 to voice 3 (49) but from voice 2 to voice 3 (51) then voice 2 is switched to voice 3 and terminated and voice 2 If not, the process returns to voice 3 or ends (52).

Then, if it is not the transition from the image 2 to the image 3 (47) and the transition from the image 1 to the image 3 (53), if the image of the video 1 is switched to the video 3 (54), then the transition from the audio 1 to the audio 3 (55) Switching Voice 1 to Voice 3 (56) and not Switching from Voice 1 to Voice 3 (55) and switching from Voice 2 to Voice 3 (57) Switching Voice 2 to Voice 3 and ending The conversion from 2 to voice 3 also ends (58).

If it is not the transition from the image 1 to the image 3 (53), if the image 3 is converted from the image 1 (59), the image of the video 3 is switched to the video 1 (60), and if the transition from the audio 3 to the audio 1 (61) ) If voice 3 is switched to voice 1 (63) and not from voice 3 to voice 1 (61) but from voice 2 to voice 3 (62), voice 2 is switched to voice 3 and terminated and voice 2 to voice If it does not switch to 3, it ends (64).

Next, if it is not the transition from the image 1 to the image 3 (53) and the transition from the image 3 to the image 2 (65), the image of the video 3 is switched to the video 2 (66) and not the transition from the audio 3 to the audio 2 ( 67. If the voice 1 is converted from the voice 2 to the voice 2 (69), the voice 1 is switched to the voice 2 and terminated, or the voice 1 is switched to the voice 2, or 70 is terminated.

Then, if it is not the transition from the image 3 to the image 2 (65), the image of the video 2 is switched to the video 1 (71), and if the transition from the audio 2 to the voice 1 (72), the audio 2 is switched to the audio 1 (73). If not from voice 2 to voice 1 (72) but from voice 3 to voice 1 (74), voice 3 switches to voice 1 and ends, or voice 3 to voice 1 also ends (75).

As described above, the present invention does not need to connect the AV input and output terminals between the videos when editing the film or to extract the AV code of the TV to connect the video to be edited to the AV terminal of the TV. If you want to connect AV equipment to multiple TVs and dub each other, you can determine the source and destination with a simple operation.

Claims (3)

A microcomputer 1 for receiving a user selection signal; A frequency converter (2) for outputting an intermediate frequency in accordance with the signal of the microcomputer (1); A voice processor (3) connected to the frequency converter (2) for processing a voice signal; An image processor (4) connected to the frequency converter (2) for processing an image signal; The AV switching unit 5 is connected to the audio processing unit 3 and the image processing unit 4 to selectively switch a plurality of video devices 6 to 8 by receiving a signal from the microcomputer 1 according to a user's selection. An audio / video switching device. Switching from video 1 to video 2 or video 3 according to the switching selection of video 1 (21-24); Switching from video 2 to video 3 or to video 1 in accordance with the switching selection of video 2; Switching from video 3 to video 1 or video 2 according to the switching selection of video 3 (29-32). Switching from voice 1 to voice 2 or from voice 3 to voice 2 when switching from image 1 to image 2; Switching from voice 1 to voice 3 or from voice 2 to voice 3 when switching from image 2 to image 3; Switching from voice 1 to voice 3 or from voice 2 to voice 3 when switching from image 1 to image 3; Switching from voice 3 to voice 1 or from voice 2 to voice 3 when switching from image 3 to image 1 (59-64); Switching from voice 3 to voice 2 or from voice 1 to voice 2 when switching from image 3 to image 2; Switching from voice 2 to voice 1 or from voice 3 to voice 1 when switching from image 2 to image 1;