KR100255778B1 - Transmit receive device of multiple video signal and selecting method of multiple video - Google Patents

Abstract

PURPOSE: A multi video signal transmission/receipt device and a multi video selection method are provided to enable a user to select one screen according to the user's preference and to view an audio and a video on an original screen by transmitting a video signal to a double window using a multicamera temporarily in a broadcasting station, and by loading the audio to a main and a subordinate audio. CONSTITUTION: A tuner(41) tunes a TV signal received from an antenna. A video intermediate frequency amplifier(42) converts the TV signal into an intermediate frequency. A video detector(43) detects a video signal separated and outputted from the video intermediate frequency amplifier(42). A multi video signal processing unit(44) selects and outputs a screen among double window videos detected from the video detector(43). A switching unit(45) switches and selects the video signal selected by the processing unit(44) and the double window video outputted from the video detector(43). A video and deflection processing unit(46) processes and deflects a signal. An audio intermediate frequency amplifier(48) converts the audio signal separated from the amplifier(42). A microcomputer(51) controls each unit of a system.

Description

Multiple video signal transceiver and multiple video selection method

The present invention relates to a multi-broadcasting system, and in particular, a multi-video signal transmitting and receiving device for displaying only one screen desired by a user after receiving a multi-image (video captured by multiple cameras) sent from a broadcasting station on a receiving side; A multi-image selection method.

As shown in FIG. 1, a conventional video signal transmitting apparatus includes a camera 11 for converting a subject into an image signal by an image pickup tube, and a synchronization signal for synchronizing a subject image captured by the camera 11 with a receiving side. A synchronization signal generator 12 for generating a signal, a scanning device 13 for scanning the subject image by the synchronization signal generated by the synchronization signal generator 12, and amplifying the image signal output from the camera 11; An image amplifier 14, an image transmitter 15 for transmitting an image signal amplified by the image amplifier 14, an audio amplifier 16 for amplifying an audio signal converted into an electrical signal by a microphone, and And a transmission antenna by mixing the audio signal 17 for transmitting the audio signal amplified by the audio amplifier 16, the video signal and the audio signal output from the video transmitter 15 and the audio transmitter 17, respectively. Exodus It consists of a mixer 18 for.

The operation of the conventional video signal transmission apparatus configured as described above will be described with reference to FIG.

First, the camera 11 converts a subject into an image signal by an image pickup tube and outputs the image signal to the image amplifier 14. At this time, the scanning device 13 receives the synchronization signal generated by the synchronization signal generator 12 and receives the camera 11. ) Converts the captured image into an electrical signal suitable for transmission.

On the other hand, the amplifier 14 amplifies the input video signal is output to the mixer 18 through the image transmitter 15, and the audio signal converted into an electrical signal by the microphone is amplified by the voice amplifier 16 It is output to the mixer 18 through the voice transmitter 17.

The mixer 18 synthesizes the input video signal and the audio signal without interference, and the synthesized TV signal is propagated through the transmission antenna.

As shown in FIG. 2, the conventional video signal receiving apparatus for receiving the transmitted TV signal includes a tuner 21 for tuning the TV signal received from the antenna and a TV tuned by the tuner 21. After converting and amplifying the signal into an intermediate frequency, the image intermediate frequency amplifier 22 outputs the image signal and the audio signal separately, and the image detector 23 detects the image signal separated by the image intermediate frequency amplifier 22. And an image processing and deflection processing unit 24 for signal processing and deflection for displaying the image signal detected by the image detector 23 on the receiving tube 25, and audio separated from the image intermediate frequency amplifier 22. A sound intermediate frequency amplifier 26 for converting and amplifying a signal into an intermediate frequency, and a sound for detecting and amplifying the sound signal output from the speech intermediate frequency amplifier 26 and outputting the same to the speaker 28. It consists of a sex detection and amplifier 27, and the microcomputer 29 which controls each part of a system.

The operation of the conventional video signal receiving apparatus configured as described above will be described with reference to FIG.

First, the TV signal received through the antenna is tuned by the tuner 21 and output to the image intermediate frequency amplifier 22, and the image intermediate frequency amplifier 22 converts the input TV signal into an intermediate frequency and amplifies it. Then, the video signal and the audio signal are separated, and the video signal is output to the video detector 23 and the audio signal to the audio intermediate frequency amplifier 26.

In this case, when the image detector 23 detects the input image signal and outputs the image signal to the image processing and deflection processing unit 24, the image processing and deflection processing unit 24 processes the signal to display the input image signal on the screen. By deflecting, an image is displayed on the water pipe 25.

On the other hand, the audio signal separated by the image intermediate frequency amplifier 22 is amplified by the voice intermediate frequency amplifier 26, and then detected and amplified through the voice detection and amplifier 27 and output through the speaker 28 to the outside do.

However, in the conventional video signal transmission and reception system, when a broadcaster does not relay any more during a regular broadcast relationship (eg play, sports), a user may not be able to watch it until the end.

Therefore, in order to solve the above-mentioned problems, the present invention temporarily transmits a video signal to a double window using multiple cameras in a broadcasting station, and sends a voice to the main and sub voices so that the receiving side can fit the user's preferences. The main purpose is to select only to be able to view the audio and video in the original screen size.

1 is a block diagram showing the configuration of a conventional video signal transmission apparatus

Figure 2 is a block diagram showing the configuration of a conventional video signal receiving apparatus

3 is a block diagram showing the configuration of an apparatus for transmitting multiple video signals of the present invention;

Figure 4 is a block diagram showing the configuration of a multi-image signal receiving apparatus of the present invention

5 is a block diagram showing the configuration of a multi-image signal processor in the present invention;

6 illustrates an implementation of one screen selected in the present invention.

7 is a flow chart showing a process of a multi-image selection method for selecting and displaying only one screen of the present invention double window screen

In the configuration of the present invention, a multi-image signal transmission apparatus for achieving the above object is provided with a first camera 31 for converting a first subject into an image signal by an imaging tube, and a second subject by an imaging tube. A second camera 32 for converting into a video signal, a synchronization signal generator 33 for generating a synchronization signal for synchronizing a subject image captured by the first and second cameras 31 and 32 with a receiving side, and A scanning device 34 which scans a subject image by the synchronization signal generated by the synchronization signal generator 33, and synthesizes each image output from the first and second cameras 31 and 32 into a double window image. An image synthesizer 35, an image amplifier 36 for amplifying the double window image output from the image synthesizer 35, and an image transmitter 37 for transmitting the image amplified by the image amplifier 36. ), And the sound converted by the microphone into an electrical signal A voice amplifier 38 for amplifying a sex signal, a voice transmitter 39 for transmitting the voice signal amplified by the voice amplifier 38, and an output from the video transmitter 37 and the voice transmitter 39 It is composed of a mixer (40) for mixing the double window video and the audio signal to transmit through the transmission antenna.

As shown in FIG. 4, the configuration of the apparatus for receiving a multi-image signal of the present invention for receiving a multi-image signal transmitted by the above-described configuration includes a tuner 41 for tuning a TV signal received from an antenna and the tuner. After converting and amplifying the TV signal received through the (41) to the intermediate frequency, the image intermediate frequency amplifier (42) for separating and outputting the audio signal and the image signal, and is separated and output from the image intermediate frequency amplifier (42) An image detector 43 for detecting an image signal, a multiple image signal processor 44 for selecting and outputting one screen among the double window images detected by the image detector 43, and the multiple image signal processor 44 A switching unit 45 for switching and outputting the image signal of the screen and the double window image output from the image detector 43 and the image selected by the switching operation of the switching unit 45 to the water pipe 47. An image processing and deflection processing unit 46 for signal processing and deflection for display, an audio intermediate frequency amplifier 48 for converting and amplifying the audio signal separated by the image intermediate frequency amplifier 42 into an intermediate frequency, and the voice It consists of a voice detection and amplifier 49 for detecting and amplifying the audio signal output from the intermediate frequency amplifier 48 to the speaker 50, and the microcomputer 51 for controlling each part of the system,

The multi-image signal processor 44 includes an analog / digital converter 44A for converting an input double window image into a digital signal, a line memory unit 44B for storing the double window image converted into a digital signal, and And a clock generator 44C for generating a write or read clock signal, a memory controller 44D for controlling only one screen selected by a user from among double-window images stored in the line memory unit 44B, and the memory controller. And a digital-to-analog converter 44E for converting the video signal output from the line memory section 44B into an analog signal by 44D.

On the other hand, Figure 7 is a flow chart showing a multi-image selection method of the present invention implemented by the multi-image signal receiving apparatus as described above.

The first step of determining whether to display the received image as a double window screen or to select only one screen, and the first process as a result of the first window, when displaying the double window screen, a double window image is displayed on the entire screen, only one screen In case of selection, the second process of storing the received double window image in the line memory and determining whether the left screen or the right screen is selected among the stored double window images, and when the left screen is selected as a result of the second process determination The image of the left screen is displayed on the entire water pipe screen by reading the screen, and when the right screen is selected, the process proceeds to the third process of reading the right screen and displaying the image of the right screen on the entire water pipe screen. .

The operation of the apparatus for transmitting a multi-image signal of the present invention configured as described above will be described with reference to FIG. 3.

First, the first and second cameras 31 and 32 convert the subject into an image signal by the image capturing tube, and then output the image signal to the image synthesizing unit 35. At this time, the scanning device 34 generates the synchronization signal generator 33. After receiving the received synchronization signal, the first and second cameras 31 and 32 convert the captured image into an electrical signal of a form suitable for transmission.

On the other hand, the image synthesizing unit 35 synthesizes the subject image captured by the first and second cameras 31 and 32 as a double window image, and the double window image is amplified and amplified by the image amplifier 36. The video signal is modulated according to the TV transmission standard through the video transmitter 37 and then output to the mixer 40.

The voice signal converted into an electrical signal by the microphone is amplified by the voice amplifier 36 and then output to the voice transmitter 37. At this time, the voice transmitter 37 transmits the first and second cameras 31 and 32 to the first and second cameras. The audio signal is loaded on the main voice and the sub-audio, respectively, and modulated according to the TV transmission standard and then output to the mixer 38.

In the mixer 38, the input video signal and the audio signal are mixed without interference and transmitted through the transmission antenna.

As described above, the operation and effect of the apparatus for receiving a multi-image signal of the present invention for receiving the transmitted multi-image signal will be described with reference to FIGS. 4 to 7.

First, the multiple image signal received through the antenna is tuned through the tuner 41 and output to the image intermediate frequency amplifier 42, and the image intermediate frequency amplifier 42 converts the input multiple image signal into an intermediate frequency. After the amplification, the video signal and the audio signal are separated, and the video signal is output to the video detector 43 and the audio signal to the audio intermediate frequency amplifier 48.

In this case, the voice intermediate frequency amplifier 48 converts and amplifies the input voice signal into an intermediate frequency. The amplified voice signal is detected and amplified by the voice detector and the amplifier 49 and output to the outside through the speaker 50. do.

On the other hand, the image detector 43 detects the input double window image and outputs it to the switching unit 45 and the multi-image signal processor 46,

In this case, when the user wants to view the double window screen, the switching unit 45 switches the double window image detected by the image detector 43 and outputs the image to the image processing and deflection processing unit 46, and the image processing and deflection processing unit. In operation 46, the input double window video signal is processed and deflected so that the image is displayed on the double tube screen in the water pipe 47.

However, when the user selects only one screen of the double window screen and wants to view the original screen size, the double window image detected by the image detector 43 has only one screen selected by the user by the multi-image signal processor 44. Is output.

That is, referring to FIG. 5, the double window image output from the image detector 43 is converted into a digital signal by the analog / digital converter 44A. At this time, the clock generator 44C stores the entire double window image. For this reason, a corresponding frequency, that is, a write clock signal (for example, 18 MHz) is generated, and the write clock signal is output to the memory controller 44D.

The memory controller 44D receives a write clock signal and controls the double window image to be converted into a digital signal, and the converted digital image signal is stored in the line memory unit 44B so that it is doubled in the line memory unit 44B. The window image will be saved.

At this time, when the user wants to watch the left screen image of the double window image stored in the line memory 44B, the clock generator 44C generates a read clock signal (eg, 9 MHz) to the memory controller 44D. Is entered.

The memory control section 44D controls the left video signal stored in the half of the line memory section 44B to be output by the read clock signal. The left video signal is output from the line memory section 44B. The digital / analog converter 44E converts the analog signal into an analog signal and outputs the analog signal to the switching unit 45.

On the other hand, when the user wants to watch the right screen, the lead clock (eg, 9 MHz) generated by the clock generator 44C is input to the memory controller 44D, and the memory controller 44D is inputted by the read clock signal. By controlling the right video signal stored on the other side of the line memory section 44D to be output to the digital / analog converter 44E, the digital video / analog converter 44E converts the right video signal into an analog signal, thereby switching the switch 45. Is output.

As a result, the image signal of the screen selected by the user among the double window images is processed and deflected by the image processing and deflection processing unit 46 through the switching unit 45, and the image signal of the screen selected by the user is displayed on the screen of the water pipe 47. Is displayed.

In the present invention, the multi-video signal transmission and reception method and the multi-video selection method that can act as described above, when the broadcast can no longer be relayed due to the regular broadcast relationship, the video is transmitted to the main voice and the sub-audio by the double window for a while. By doing so, the receiving side selects only one screen according to the user's preference, so that the audio and video can be viewed to the end in the original screen size.

Claims (5)

First and second cameras for converting the first and second subjects into image signals by an image pickup tube, a synchronization signal generator for generating a synchronization signal for synchronizing the subject image captured by the first and second cameras with a receiving side, and the synchronization A scanning device for scanning the subject image by the synchronization signal generated by the signal generator, an image synthesizer for synthesizing the respective images output from the first and second cameras into a double window image, and a double output from the image synthesizer An image amplifier for amplifying a window image, an image transmitter for transmitting an image amplified by the image amplifier, a voice amplifier for amplifying a voice signal converted into an electrical signal by a microphone, and a voice amplified by the voice amplifier A voice transmitter for transmitting a signal, and a double window image and an audio signal outputted from the video transmitter and the voice transmitter Over multiple video signal transmission apparatus, it characterized in that the mixer is configured for transmitting over the transmission antennas. The method of claim 1, wherein when the voice signal output from the microphone is loaded on each camera, voice multiple broadcasting is used so that a user can select and listen to a voice suitable for each screen by loading the main voice and the sub-audio. Video signal transmitter. A tuner for tuning the TV signal received from the antenna, an image intermediate frequency amplifier for converting and amplifying the TV signal received through the tuner into an intermediate frequency, and separating and outputting an audio signal and an image signal, and the image intermediate frequency amplifier An image detector for detecting a video signal separated from the output signal, a multiple image signal processing unit for selecting and outputting a single window image detected by the image detector, and an image signal and an image detector of the screen selected by the multiple image signal processing unit. A switching unit for switching and outputting the output double-window image, an image processing and deflection processing unit for signal processing and deflection for displaying the image selected by the switching operation of the switching unit on the water pipe, and separated from the image intermediate frequency amplifier Audio amplification by converting the converted audio signal into intermediate frequency Multiple video signal receiving apparatus, characterized in that consists of an amplifier and the audio intermediate frequency and the audio detector and an amplifier for detecting and amplifying to output the audio signal output from the amplifier to the speaker, a microcomputer for controlling each part of the system. 4. The multi-image signal processing unit of claim 3, wherein the multi-image signal processing unit converts an input double window image into a digital signal, a line memory unit for storing the double window image converted into a digital signal, and a write or read clock. A clock generator for generating a signal, a memory controller for controlling only one screen selected by a user from the double window image stored in the line memory unit, and an image signal output from the line memory unit by the memory controller as an analog signal. Multiple video signal receiver comprising a digital to analog converter for converting. The first step of determining whether to display the received image as a double window screen or to select only one screen, and the first process as a result of the first window, when displaying the double window screen, a double window image is displayed on the entire screen, only one screen In case of selection, the second process of storing the received double window image in the line memory and determining whether the left screen or the right screen is selected among the stored double window images, and the left screen when the left screen is selected as a result of the second process determination. The image of the left screen is displayed on the entire water pipe screen by reading the screen, and when the right screen is selected, the right screen is read and the image of the right screen is displayed on the entire water pipe screen. How to select an image.

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