KR20030020039A - Sound transceiving system for use in broadcasting sports game - Google Patents

Abstract

According to the present invention, there is provided a sports match relay system. The system is provided with a wireless transmitter for processing a microphone and a sound signal, converting the signal into a wireless signal, and transmitting the signal wirelessly. The system is configured to receive and process a sound collection device installed in a sports equipment and a signal transmitted wirelessly. An audio signal processor includes a receiver and an audio signal separation circuit. The sound collecting device includes a microphone for converting sound into an electrical signal, an amplifier for amplifying the electrical signal, a modulator for modulating the amplified signal, and an antenna for transmitting the signal wirelessly. The sound collecting device is mounted on an exercise equipment such as a ball.

Description

Sound Transceiver System for Sports Events {SOUND TRANSCEIVING SYSTEM FOR USE IN BROADCASTING SPORTS GAME}

The present invention relates to a sports event broadcast system, and more particularly, to a broadcast system capable of effectively transmitting the sound generated in a sports event to the viewer.

In recent years, the income of sports events depends on TV broadcasting rather than on-site audiences. TV viewers want a live presence. Conventionally, a conventional microphone (hereinafter referred to as a "microphone") was installed around a stadium in order to deliver a realistic sound when relaying an athletic game. Therefore, it was difficult to collect sound when the play was made far away from where the microphone was installed. These microphones could not keep up with the speed of the player and the ball. As a result, they could not effectively collect and relay the presence of sports games.

An object of the present invention in consideration of the above problems is to provide a sports relay system for transmitting the sound that players play.

Another object of the present invention is to provide an exercise equipment such as a ball to which a microphone and a wireless transmitter are attached.

Another object of the present invention to provide a sports relay system using the exercise equipment, such as a ball attached to the microphone and the wireless transmission device.

1 is a conceptual diagram of a sound transmission and reception system for soccer game relay according to an embodiment of the present invention;

FIG. 2 is a view showing a part of the soccer ball of FIG. 1, showing a cut away part of the skin and bladder of the soccer ball in cross section.

3 is a cross-sectional view showing the configuration of a soccer ball according to another embodiment

4 is a cross-sectional view showing a soccer ball in detail.

Figure 5 is a block diagram of a sound wireless transmission device provided in the soccer ball of Figure 1

6 is a detailed configuration diagram of a wireless transmission device

7 is a block diagram of the repeater (and antenna) of FIG.

FIG. 8 is a block diagram showing a sound side portion of the broadcast signal transmitting apparatus of FIG.

9 is a diagram showing a detailed configuration of the broadcast signal processing and transmission apparatus;

10 is a view showing the principle of tracking the position of the soccer ball using three antennas

11 is a diagram showing bit sequence allocation for the FSK-FH transmitter method used as a method of classifying a soccer ball.

12 is a diagram illustrating considerations in making a specific system

In the present invention, in the case of an athletic event using an exercise tool such as a ball, such as ball games, it is noted that the movement of athletes and the viewer's vision and hearing perception are concentrated on the exercise tool. Therefore, by installing a small microphone and a wireless transmission device directly to the exercise equipment, it is possible to directly transmit in real time the sound hitting the ground, athlete's body, and other tools. You can also collect sounds from the movements of players around you. The device installed in the exercise equipment in the present invention can withstand the impact applied in the athletic competition, and is also preferably made so that deformation is not applied to the exercise equipment.

According to an aspect of the present invention, in the system for broadcasting broadcast sports sports using sports equipment,

A sound collecting device 12 installed in a sports equipment as provided with a wireless transmitter for processing a microphone and a sound signal, converting the signal into a wireless signal and transmitting the signal wirelessly;

In order to receive and process a signal transmitted wirelessly, there is provided a relay broadcasting system including a broadcast signal processing apparatus including an audio signal processor including a wireless signal receiver and an audio signal separation circuit.

According to another aspect of the present invention, in the athletic equipment,

Is equipped with a sound collection device for collecting and transmitting the radio around the sports equipment,

The sound collecting device is provided with an exercise equipment including a microphone for converting sound into an electrical signal, an amplifier for amplifying the electrical signal, a modulator for modulating the amplified signal, and an antenna for transmitting the signal wirelessly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a system for relaying a soccer game is described, but the present invention is not limited thereto.

1 and 2, the sports competition relay system 10 includes a sound collecting device 12 provided in a soccer ball 14, a repeater 16, and a broadcast signal processing device 18. . The soccer ball 14 used for the game has a sound collecting device 12. The repeater 16 receives and amplifies a radio signal from the moving soccer ball 14 and sends it to the broadcast signal processing device 18. The repeater 16 is installed around the stadium 20. Installation position, the number of installation of the repeater 16 may vary depending on the size of the stadium, the nature of the game.

Referring again to the features of the system of the present invention shown in the example of Figure 1, when applied to a football game, (1) 20 chips embedded soccer ball meets the conditions as a certified ball (16 football in one game Ball is required). (2) If the ball is administered to the ground by setting a separate frequency for 20 balls, the receiver will automatically detect and capture the sound transmitted by the administered ball. Set the frequency for each ball with the remote controller before the game and check the built-in chip for abnormality and battery capacity. Detection of the administered ball is made through three antennas and repeaters installed around the ground and automatically detects when the ball is administered within a preset ground area. (3) Built-in filtering function for sound in receiving repeater removes noises other than necessary sound and corrects target sound appropriately and sends out. (4) The sound of the cheering seat, the announcement of the announcer, the sound of the commentary, and the sound delivered from the ball will be extracted and delivered in advance. (5) Program the receiving repeater so that the sound is delivered differently (e.g., closer to the louder the louder the louder the subject is) when the camera is holding the subject farther and closer. Install it. Specific considerations in manufacturing such a system are as shown in FIG.

Referring to FIG. 2, the soccer ball 14 is provided with an outer shell 22, an air bladder 24, a valve 26, and a sound collecting device 12. The sheath 22 of the soccer ball 14 is made by cutting a piece of leather and sewing it along the sewing seam 23. The air bag 24 is usually made of a material such as latex. The air bag 24 can be made by attaching two pieces of hemispherical shape.

Although not shown in detail in FIG. 2, the valve 26 may be attached to a separate latex piece and secured by attaching it to an appropriate location on the two piece bond lines 25. The valve 26 is for injecting air into the air bag 24. The valve 26 has a valve holding plate 28 for attaching to the air bag 24. The sound collecting device 12 is fixed on the valve fixing plate 28. In the configuration as shown in Figure 2 there is an advantage that it is easy to install the sound collecting device 12, it can be firmly fixed. The sound collecting device 12 includes an antenna 30 extending past the fixed plate 28 and past the wall of the air bag 24, and an antenna 32 hanging inside.

In the embodiment illustrated in FIG. 2, the sound collecting device is fixed to the valve, but the present invention is not limited thereto. For example, unlike the embodiment shown in FIG. 2, a plate-shaped structure may be attached to the inner wall of the soccer ball air pocket separately from the valve and the sound collecting device may be fixed thereon.

Referring to FIG. 3, in the soccer ball 14a according to another embodiment, a sound collecting device 12a is installed near the center of the air bag 24a. The sound collecting device 12a is attached with a plurality of support strings 34. The other end of the support string 34 is firmly attached to the inner wall of the air bag 24a using an adhesive or the like. The soccer ball 14a having such a structure is formed by attaching two pieces of latex to create an air pocket 24a, and having two (maybe three or more) latexes for supporting lines 34 attached to the sound collecting device 12a. After attaching to the inner wall surface of each piece, it can be produced by connecting the latex pieces to complete the air bag (24a). It is preferable that the support string 34 is an elastic body, and it is preferable that the amount of deformation is limited so that the sound collecting device 12a does not hit the inner wall even after sudden deformation or acceleration of the ball due to the impact, and it is preferable that the material absorbs such an impact. Do.

In the structure shown in Fig. 3, regardless of the size of the sound collecting device 12a. In addition, the possibility that the sound collecting device 12a is directly impacted is reduced. The dashed-dotted line shows the outer shell 22a, 25a indicates an internal joint line, and 26a indicates a valve. 30a indicates an antenna.

4 shows another ball configuration.

5, the sound collecting device 12 includes a small microphone 40 for collecting sound, an amplifier 42, a modulator 44, an oscillator 46, a filter 48, and an antenna ( 30,32). The microphone 40 is preferably a very small one having a low directivity, that is, capable of transmitting sounds in various directions. The microphone 40 converts the sound of the stadium into an electrical signal. The sound signal converted into an electrical signal is amplified in the amplifier 42 to a degree suitable for wireless transmission.

The amplified signal is input to the modulator 44. The modulator 44 modulates the input signal with high frequency to transmit it wirelessly. The signal modulated at the transmission frequency is limited to the appropriate band in the filter 48 and finally transmitted through the antennas 30 and 32. A battery 50 is provided to supply power to these circuits.

Although not shown in FIG. 5, the sound collection device 12 preferably includes a digital signal processing circuit section between the amplifier and the modulator. The digital signal processing circuit section processes the sound signal into a digital signal to be transmitted to the unique channel assigned to each ball.

The signal transmitted from the sound collecting device 12 is received by the repeater 16. Referring to FIG. 5, the repeater 16 includes a two-band common antenna 52, a duplexer 54, a low noise amplifier 56, a receiver side filter 58, a frequency converter 60, an oscillator 62, and a band amplifier. 64, a transmission side filter 66 is provided.

6 shows a specific example of a transmitter installed in a soccer ball.

Referring to FIG. 7, the signal received from the soccer ball 14 is separated from the duplexer 54 via the antenna 52 and transmitted to the low noise amplifier 56. The signal amplified by the low noise amplifier 56 is passed to the receiving filter 58 so that only an appropriate band is filtered out. The signal passed through the receiving filter 58 is converted into a signal of the frequency band for transmission by the frequency converter 60. The signal of the transmission frequency band is amplified by the band amplifier 64 corresponding to the frequency band, and is limited to the transmission band by the transmission side filter 66. This transmission signal is transmitted via the duplexer 54 and the antenna 52.

The signal transmitted from the repeater 16 is transmitted to the broadcast signal processing device 18. Referring to FIG. 1, the broadcast signal processing apparatus 18 includes an audio signal processor 70, a broadcast signal synthesizer 72, and a transmitter 74. The audio signal processor 70 receives a signal from the repeater 16 and outputs a broadcast audio signal. The audio signal is combined at the signal synthesizer 72 with the video signal coming from the camera 76. The combined broadcast signal is transmitted via the transmitter 74 and the antenna 78.

1 and 8, the audio signal processor 70 includes an antenna 80, a receiver side filter 82, a low noise amplifier 84, a demodulator 86, an automatic gain controller 88, and an oscillator 90. A frequency detector 92, a multi-channel filter 94, a plurality of audio players 96, and an audio synthesizer 98. The signal transmitted from the repeater 16 is limited to the band defined in the filter 82, which is amplified in the low noise amplifier 84. The amplified signal is demodulated in demodulator 86, and the audio signal is separated in detector 92. The audio signal is separated for each channel in the channel separator 94. Each channel considers the use of multiple balls in one football game. A total of 16 balls will be offered in the official football match, and if the ball goes out of the field, another ball will be replaced soon. Even if the ball changes in this way, in order to broadcast the sound in the stadium, it is better to allocate different channels to the balls to be put into the game. In the channel separator 94, the audio signal transmitted to the digital signal system is separated into a code or classified into a time slot according to the type of the digital signal system.

In this way, if each ball has a different channel, the sound can be collected only from the ball thrown into the stadium. In addition, considering that each ball is distributed to several locations around the stadium, there is an effect that can collect the sound around the stadium or a specific location.

In the audio player 96, a sound signal separated for each channel is reproduced. The reproduced sound signal is transmitted together with the video signal by the broadcast signal synthesizer as it is. The audio synthesizer 98, which may be additionally provided, performs a function of matching a sound similar to the real sound. Using this function, the sound heard in the actual playground can be directly heard, and sometimes a similar effect can be obtained by matching a similar sound among the actual collected sound and the synthesized sound.

In the above description, the channel of each ball is divided as a digital audio signal. Alternatively, the channel may be separated by changing a radio frequency from the ball.

9 is a diagram showing a specific configuration of the broadcast signal processing and transmission apparatus.

FIG. 10 is a view illustrating a principle of tracking a soccer ball using three antennas. The distance (radius of the radio wave area) is calculated by measuring the intensity of radio waves of the soccer ball transmitters received by three different antennas, and the position of the soccer ball is predicted from the distances d1, d2, and d3. According to the size of the field, such as a soccer field and a basketball court, adjustment of the received electric field strength of each antenna and selection criteria of the antenna position are necessary. Other methods of transmitting GPS data using a GPS receiver chip in a soccer ball transmitter are also possible.

FIG. 11 is a diagram showing bit sequence allocation for the FSK-FH transmitter method used as a soccer ball classification method. FIG. The FSK-FH transmission / reception scheme allocates a unique bit sequence of an example as shown in each soccer ball and transmits them sequentially. The two frequencies available for sequential transmission are arranged in a unique sequence. Sequences with different arrangements are recognized as different soccer balls.

In the above embodiment, soccer has been described as an example, but the present invention is not limited to the soccer relay system. The invention can also be applied to basketball or other ball games. If the sound collection device 12 is put into the exercise equipment with movement during the game as well as the ball, it is possible to apply the relay system according to the present invention.

There may be a ball in which air is injected without a separate air bag. It will be understood by those skilled in the art from the description herein that it is also possible to install the sound collecting device inside such a ball.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto. It will be apparent to those skilled in the art that modifications and variations of the embodiments are possible without departing from the spirit and scope of the invention and that such modifications and variations also fall within the invention.

According to the above configuration of the present invention, it is possible to relay a sports event with a sense of presence. That is, when the player or the ball moves while watching the broadcast, I can hear vivid scene sounds. As a result, the viewer can taste the feeling as if appearing in the sports stadium, it is possible to expect the effect of increasing the viewer rating of the sports relay broadcast. In addition, in the case of an athlete or a referee, it is possible to directly transmit his / her presence to the audience and viewers through the ball delivering the surrounding sound.

Claims (9)

In the system for broadcasting broadcast sports sports using sports equipment, A sound collecting device 12 installed in a sports equipment as provided with a wireless transmitter for processing a microphone and a sound signal, converting the signal into a wireless signal and transmitting the signal wirelessly; And a broadcast signal processing apparatus for receiving and processing a signal transmitted wirelessly, the apparatus including an audio signal processor having a wireless signal receiver and an audio signal separation circuit. The relay broadcasting system according to claim 1, further comprising a repeater having a signal transceiver and a frequency converter for transmitting a radio signal for receiving a signal from the sound collecting device and transmitting the signal to the audio signal processor. The relay broadcast system according to claim 1 or 2, wherein the broadcast signal processing apparatus includes the audio signal processor, a video signal and audio signal synthesizer, and a wireless signal transmitter. The relay broadcasting system according to any one of claims 1 to 3, wherein the athletic equipment is a ball, and the ball has a sound collection device. 5. The broadcast system according to claim 4, wherein the ball has an outer shell, an air bag, and a valve extending through the outer bag and into the air bag, wherein the sound collecting device is fixed to the valve. The broadcast system according to claim 4, wherein the ball has an inner wall forming a space in which air is accommodated, and a plurality of support strings are connected between the inner wall and the sound collecting device. The apparatus of claim 1, wherein the sound collecting device comprises: a microphone for converting sound into an electrical signal, an amplifier for amplifying the electrical signal, a modulator for modulating the amplified signal, and wirelessly. Relay broadcasting system having an antenna for transmitting the signal. 8. The broadcast system according to any one of claims 1 to 7, wherein there are a plurality of balls and a different transmission bit sequence is assigned to each ball. 8. The broadcast system according to any one of claims 1 to 7, wherein there are a plurality of balls and a reception antenna is provided at at least three positions to identify balls in the ground.