KR101553928B1 - Use converting system with electronic news gathering camera having high definition multimedia interface - Google Patents

Abstract

An application conversion system for an ENG camera is disclosed that maximizes the utility of an ENG camera by allowing an ENG camera having different purposes to be used as an EFP camera, and provides scalability for use in connection with a general AV device. A first HDMI output port provided on the camera adapter and a first HDMI input port provided on the base station, the composite cable including an HDMI cable connecting the first HDMI output port and the first HDMI input port, The present invention provides an application conversion system for an ENG camera. According to the present invention, not only an ENG camera can be operated as an EFP camera but also an ENG camera can be utilized in connection with an existing AV device such as a TV.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a conversion system for an ENG camera,

The present invention relates to an ENG camera application conversion system for enabling an ENG camera to be used as an EFP camera, and more particularly, to an ENG camera having a different purpose from an EFP camera as an EFP camera, And to an application conversion system for an ENG camera that provides scalability for use in connection with a general AV device.

The TV camera shows what the viewer wants to see in place of the viewer's eyes and shows the images selected by the director. That is, it transmits the selected images to the viewer.

Because of this role, TV cameras are essential and central equipment in the production of TV programs. All equipment required for production depends on the characteristics of the TV camera, and also depends on the quality and size of the program and on which TV camera to use.

Specifically, TV cameras are mainly used in studios designed for broadcasting. This TV camera is as diverse and stable as the one used in the studio, and is mainly used for recording and live broadcasting. However, there are big and heavy disadvantages, and when moving, you have to move through the pedestal wheel.

In addition, the TV camera includes a lens, an internal optical device, a camera head composed of a viewfinder, a controller for controlling the main functions of the camera, a recorder, and a power supply.

In addition, the TV camera is provided with an internal communication system such as a tally light or an intercom. Since a plurality of TV cameras simultaneously record a general broadcasting screen, recording of the broadcasting screen is a screen captured by one of the cameras. Therefore, the cameraman needs to check which camera is used to record a screen shot. At this time, the apparatus used is tally light.

In other words, Tally Light is a lamp in front of each camera, and when it lights up, it shows that the screen that the camera is holding is recording or broadcasting. Moreover, Tally Light helps performers align their gaze or help other cameramans prepare for the next screen.

On the other hand, the intercom is a device by which the director and other production staffs can communicate with each other while broadcasting. The director can tell the cameraman how to move several cameras among the multiple cameras through this intercom.

More specifically, such a TV camera is generally classified into a standard camera and a handy camera (also referred to as an ENG camera or an EFP camera).

The standard camera has a disadvantage that it can be used only at a place where the same conditions as the studio or the studio are provided, rather than functioning as a camera, to catch a side of a subject or to catch an electronic signal of an image medium.

Meanwhile, the ENG (Electronic Field Production) camera is designed to be portable so that a cameraman can carry it, and means a camera capable of recording an image in a separate small-sized recording device or a recorder built in the camera.

These ENG cameras have the power to respond quickly to events, the maneuverability to capture the whole process of events, and flexibility in equipment and personnel. In addition, ENG cameras are compact and lightweight, allowing them to quickly approach events, situations, and people faster than any other equipment, and shoot on camera shoulders instead of tripods or studio pedestals. Angles can be captured immediately. In addition, it has the advantage of being able to respond immediately to the scene situation and to be able to shoot easily even in extreme conditions.

As described above, ENG cameras are efficient in outdoor production of news, documentary, and drama because they have easy mobility and independent working ability.

However, since it mainly features outdoor shooting and recording with a minimum number of people in the outdoors, it can not use the production adjustment function as in the studio, so it is difficult to expect high quality picture and audio.

In addition, Eelectronic Field Production (EFP) cameras have functions similar to those of ENG cameras, but they do not have recording equipment, Usually, other functions are adjusted in a separate place, such as a minor control room, via a cable connected to the unit.

Generally, when shooting sports broadcasts or studio broadcasts or when recording a set of dramas, the EFP camera captures images.

Since the EFP camera does not have its own recording function, it requires a lot of manpower, has low mobility, and is relatively expensive compared to an ENG camera, so that it is difficult to use the EFP camera other than a broadcasting company.

Accordingly, it is required to develop a technique for using an ENG camera as an EFP camera so as to utilize the advantages of the ENG camera and the EFP camera.

On the other hand, a High-Definition Multimedia Interface (HDMI) is a digital multimedia interface (HDMI) that converts a digital multimedia audiovisual signal from a DVD player, a set-top box and other audiovisual sources into a television set, a projector, Lt; / RTI >

These HDMIs can transmit high-quality multi-channel audio data, can be applied to all standard and high-definition (HD) electronic video formats, and content protection technology is also applicable.

As such, HDMI can transmit uncompressed baseband digital HD video signals and audio signals with no loss, and can easily connect devices with a single-stranded cable, and can control the devices integrally and transmit high-resolution contents .

However, such a HDMI scheme has a disadvantage that it can not transmit signals over a long distance because the stable signal transmission length is as short as several meters.

Korean Patent No. 10-1286156 (published on July 17, 2013) Korean Patent No. 10-0697965 (published on March 23, 2007) Korean Registered Patent No. 10-1195179 (issued October 29, 2012)

Accordingly, an object of the present invention is to provide an ENG camera that not only provides an EFP camera function to an ENG camera so that an existing ENG camera can be used as an EFP camera at the user's choice, Use conversion system.

In order to achieve the object of the present invention, an ENG camera according to an embodiment of the present invention collects a video signal and an acoustic signal captured by the ENG camera, transmits each signal to the outside, A composite cable connected to the camera adapter to transmit the signal, and a control unit connected to the composite cable to receive a signal transmitted from the camera adapter, And a base station for transmitting a signal input from the main controller to the camera adapter via a composite cable, the system comprising: a first HDMI output port installed in the camera adapter; And a second HDMI input port to be installed, Claim 1 provides a HDMI output port and the ENG camera use conversion system comprises a HDMI cable connected to the first HDMI input port.

According to the present invention, not only an ENG camera can be operated as an EFP camera but also an ENG camera can be utilized in connection with an existing AV device such as a TV.

The present invention can relay, store, and transmit broadcast signals that can support UHD (Ultra High Density) 4K (4096x2160) and 8K (8192x4320) resolutions using an ENG camera.

In addition, the present invention can support an intercom signal, a remote control, and a tally signal that are not supported by the HDMI 1.4 version, so that a calling signal of a cameraman or a calling signal of a director can be smoothly transmitted to the other party.

In addition, since the broadcasting equipment used in the broadcasting system maintains an expensive price, the broadcasting service does not meet the expectation of the consumers other than the large broadcasting companies, but the system of the present invention reduces the production cost for the program It is possible to produce a high-quality program at a small cost. In addition, the initial cost required for the construction of the broadcasting system can be lowered, thereby making it possible to lower the entry threshold of the broadcasting industry.

However, the ENG camera and the broadcasting operation facility can not be used together because the standard specifications differ from maker to manufacturer. However, using the system according to the present invention, different ENG cameras including a broadcasting camera manufacturer, a home camcorder and a next generation UHD broadcasting camera, Since the HDMI interface is available for the camcorder and broadcasting operation facility, compatibility with broadcasting editing, storage, transmission equipment, home computer, set-top box, and beam project can significantly reduce work efficiency and cost of content production.

1 is a block diagram illustrating an application conversion system for an ENG camera in accordance with an embodiment of the present invention.
Fig. 2 is a configuration diagram for explaining the ENG camera.
Fig. 3 is a configuration diagram showing an embodiment of an application conversion system for the ENG camera of Fig. 1; Fig.
Fig. 4 is a configuration diagram showing another embodiment of the application conversion system for the ENG camera of Fig. 1; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ENG camera application conversion system (hereinafter referred to as an ENG application conversion system) according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating an application conversion system for an ENG camera in accordance with an embodiment of the present invention.

Referring to FIG. 1, the ENG application conversion system according to the present invention provides compatibility with an ENG camera so that the ENG camera can be used in a broadcasting operating facility for an EFP camera. The ENG camera can be replaced with an ENG camera, A main controller (not shown) such as an editing room, a personal computer, a set top box, a beam projector, and various image display devices. The main controller is connected to the EFP camera and transmits / receives signals to / from the EFP camera. The main controller is installed in an auxiliary control room, a relay vehicle, a editing room, a personal computer, a set top box, a beam projector, and various image display devices.

Specifically, the ENG application conversion system includes a camera adapter 100 that receives and sends out video signals and sound signals (hereinafter abbreviated as 'A / V data') photographed from an ENG camera, A composite cable 200 and a base station 300 for transmitting signals transmitted by the composite cable 200 to a main controller. One or more camera adapters 100 may be connected to the base station 300 through the composite cable 200.

The ENG camera to which the ENG conversion system according to the present invention can be applied typically comprises a lens part 510 and a body part 520, as shown in FIG. More specifically, the lens unit 510 is composed of a lens 512 and a finder 514, and the body unit 520 is composed of a camera module 522 and a recorder 524. At this time, the finder 514 may be configured to be separated from the body 520, but may be configured to have an integral structure with the body 520.

Hereinafter, each component will be described in more detail with reference to the drawings.

Referring to FIG. 1, an ENG application conversion system according to the present invention includes one or more camera adapters 100.

The camera adapter 100 is connected to a power terminal of an ENG camera, for example, a body, and has a structure that can be electrically connected to an ENG camera commonly used in the art.

The camera adapter 100 transmits the A / V data of the screen shot by the ENG camera to the base station 300 and the video signal, the sound signal, A video processing unit, a sound processing unit, a video unit, a control unit, and an HDMI output port (hereinafter, referred to as a 'first HDMI output port'). At this time, the camera adapter 100 may further include an HDMI input port (hereinafter referred to as a 'second HDMI input port') and an HDMI output port (hereinafter referred to as a 'third HDMI output port').

Here, the third HDMI output port is connected to a general AV device via an HDMI cable, and provides a function of transmitting A / V data photographed by an ENG camera to an AV device via an HDMI cable . At this time, a TV, a camcorder, a digital camera, a DVD (Digital Versatile Disc) player, a BD (Blu-ray Disc) player, a PS3 (PlayStation 3), a set top box, a mobile phone, .

If necessary, the camera adapter 100 may be provided with a tally light or an intercom. Typical types of signals required for camera relay, recording, and transmission include a camera video, a MIC (microphone) audio signal input to the camera, a program video output from a power source, a camera monitor, A return video of an audio out, an audio monitor, a tally control signal, and an intercom signal. However, the video output from the camera is output through the HDMI interface, and the audio out is not included in the remaining required functions.

The camera adapter provides a function to support transmission and reception of a program video, an audio output, an audio monitor, a tally control signal, an intercom signal, and the like output from a camera monitor, a relay vehicle or an auxiliary control room not supported by a general ENG camera. In other words, without the above-mentioned functions, the ENG camera can not be converted to the EFP camera.

Specifically, the image processing unit collects image signals of a screen shot through an ENG camera, and provides the image signals to a control unit. The sound processing unit collects sound signals of a screen shot through the ENG camera and provides the collected signals to the control unit.

The intercom also collects the acoustic signals input through the microphone of the cameraman and provides the acoustic signals to the control unit. The video unit collects the character signals input through the ENG camera and provides the collected signals to the control unit.

In addition, the control unit collects the signals received through the video processing unit, the sound processing unit, and the video unit, generates a transmission signal, and transmits the transmission signal to the outside. Then, the controller collects the signals received through at least one of intercom, tally light, and intercall to generate a paging signal, and applies the paging signal to the power line of the composite cable through the first power line communication device Function.

In addition, the HDMI output port is for transmitting the transmission signal collected through the camera adapter 100 to the base station 300, and the terminal of the HDMI cable connecting the camera adapter 100 and the base station 300 to the camera adapter 100, (100). The HDMI output can be converted into an HD-SDI signal and used between the camera adapter 100 and the base station 300 as needed. To do this, the HDMI output is converted into the HD-SDI signal and the HD-SDI signal is output to the HDMI output between the camera adapter 100 and the composite cable 200 or between the composite cable 200 and the base station 300 or both And an HD-SDI converter for conversion.

This provides the effect of expanding the broadcasting range by selectively outputting the HDMI output and the HD-SDI signal, and expanding compatibility with broadcasting-dedicated equipment, household equipment, and personal computers.

Here, the character signal means a video signal indicating various information values so as to check how the camera module is controlled to capture an image. The call signal collected through the intercom is a signal obtained by collecting the voice of the cameraman for mutual communication between the cameraman and the director, and the selection of the director determines whether or not the call signal is collected.

At this time, the collection of the call signal of the intercom may be set through the camera adapter 100 in an allowed state, but in order to prevent the voices of the cameraman from being disturbed by the broadcast photographing, . In this way, when the collection of the talent of the cameraman is blocked, the collection permission of the intercom call signal can be notified to the headset worn by the cameraman through the intercom, or be noticed through the tally light.

If necessary, the control unit of the camera adapter 100 may collect the control signal of the camera module and include it in the paging signal. The control signal means a signal for adjusting the speed at which the light is received through the camera module, such as a shutter speed, and a signal for processing the received light.

In addition, the control unit of the camera adapter 100 receives and separates the return signal transmitted from the base station 300 through the composite cable 200, and outputs the separated signal to the ENG camera. Here, the return signal includes A / V data for informing which camera a picture is being recorded, and a call signal for collecting a voice of a director for communication between the cameraman and the director. At this time, the calling signal of the director can be output to the camera man through the headset connected to the ENG camera.

In this way, the camera adapter 100 is provided with a monitoring function for allowing the ENG camera, which has a structure capable of confirming only the directly photographed image, to check the return image of a scene photographed and recorded by another camera. This monitoring function is an essential function of the EFP camera, so it is a function that must be added in order to use the ENG camera as an EFP camera.

In addition, the camera adapter 100 is supplied with power from the base station 300 through the composite cable 200, and supplies the power to the ENG camera, thereby providing power to the ENG camera.

In one embodiment, the camera adapter 100 according to the present invention may be configured to include a first optical signal converter 110 and a first digital converter 120, as shown in FIG.

The first optical signal converter 110 collects an HD video signal, an acoustic signal, and a character signal collected from the ENG camera to generate a transmission signal. The first optical signal converter 110 receives the composite video signal through a first HDMI cable And transmits the outgoing signal to the base station 300.

Then, the first optical signal converter 110 receives the return signal transmitted from the base station 300 through the second HDMI cable, separates it, and outputs the separated signal to the ENG camera. At this time, the return signal transmitted from the base station 300 includes an HD video signal and an audio signal for real-time broadcasting provided to a viewer.

The first digital converter 120 receives the lens control signal and the paging signal transmitted using the digital signal through the second HDMI cable 220 of the composite cable 200. The lens control signal and the paging signal Controls the blinking of the lens and tally light of the ENG camera.

That is, the camera adapter 100 equipped with the first digital converter 130 adjusts the functions of the ENG camera in a separate place such as a secondary control room or a relay vehicle.

Meanwhile, the camera adapter 100 may include a first power line communication device 130.

The first power line communication device 130 applies a call signal transmitted through a control unit to a power line to provide the call signal to the base station, extracts a call signal provided from the base station through a power line, and provides the extracted call signal to the control unit.

Such a call signal may be transmitted to the base station via an HDMI cable together with the transmission signal, but in this case, a plurality of HDMI cables are required since the transmission signal and the call signal must be transmitted to the base station through different HDMI cables The manufacturing cost may increase.

Thus, the present invention transmits intercom and deserialization signals over a power line to reduce manufacturing costs and simplify the structure of the application conversion system. This is because the necessary signals and data other than the HDMI signal of the camera out can not increase the number of additional cables in order to be compatible with the cables and connectors for cameras conforming to the ARIB standard (BTA S-10005B) and the SMPTE standard, The remote control signal, the tally signal, and the intercom signal are transmitted and received.

In addition, the camera adapter 100 may further include a serializer and a deserializer.

In the camera adapter 100 according to the present invention, data is processed in parallel. However, in order to transmit a signal through an HDMI cable, the parallel data must be converted into a serial because a signal must be sent by one line. It is a serializer to convert a parallel signal into a serial signal, and a serializer to perform the reverse.

These HDMI signals were processed as parallel data during the initial development and the data was processed with four strands of optical cables. When the serial data conversion process SerDes is performed, communication output can be performed with two optical fibers.

Means for generating a plurality of parity bits (alternating between odd parity bits and even parity bits) using data samples obtained from the plurality of data channels, And means for generating a deskew bit stream comprising the data samples and the plurality of parity bits, wherein the deskew bit stream comprises a plurality of data channels in a manner that substantially reduces skew associated with a plurality of data channels, In order to align the plurality of data channels.

However, in the optical cable standard for cameras conforming to the ARIB standard (BTA S-10005B) of the world standard broadcasting standard and the SMPTE standard, one optical fiber cable output and one input optical cable output are set as standard, The output optical cable of FIG. 4A is treated as one strand, and four parallel optical signals are output as serial data of one strand, and the input is processed as one serial stranded optical cable signal by the same method.

Here, "BOSA" refers to a technique for transmitting multiple wavelengths of light through a single optical fiber, which is a fiber-to-the-home (FTTH) technology combining existing Gigabit Ethernet (GE-PON) and wavelength division multiplexing (WDM-PON). When this type of application is applied, 32 wavelengths are transmitted with one strand of optical fiber and 1.25Gbps transmission rate per wavelength, so 1G-class high-speed Internet connection is possible up to 20 times faster than the existing Internet (approximately 50Mbps) Using a branching device, it is possible to apply 1,024 subscribers to a maximum of 512 optical subscribers by using a 16-branching device.

In the meantime, WDM (Wavelength Division Multiplexing) technology has excellent technical advantages such as bandwidth and security function of a dedicated line, but it has been pointed out that it is less economical than GE-PON equipment. Therefore, Wavelength-division-duplex Ethernet passive optical network (WE-PON) is a technology for next generation FTTH that gives price competitive power to WDM technology.

Referring to FIG. 1, an ENG application conversion system according to the present invention includes a composite cable 200.

The composite cable 200 transmits an outgoing signal by connecting the camera adapter 100 and the base station 300, and includes an HDMI cable. Here, the HDMI cable connects the camera adapter 100 and the base station 300, and performs a one-way communication to transmit the transmission signal collected from the camera adapter 100 to the base station 300.

The composite cable 200 according to the present invention includes a first HDMI cable 210 that provides a transmission signal supplied from the camera adapter 100 to the base station 300 and a second HDMI cable 210 that is supplied from the base station 300 And a second HDMI cable 220 for transmitting a return signal to the camera adapter 100.

The composite cable 200 includes a power line 230 that receives power from the base station 300 and transmits the power line 230 to the camera adapter 100.

3, a composite cable of a standard standard used for broadcasting communication generally comprises a first HDMI cable 210, a second HDMI cable 220, and a power line 230. At this time, in the standard cable 200, the first HDMI cable 210, the second HDMI cable 220, and the power cable 230 are present in a single strand.

The second HDMI cable 220 transmits a return signal, and the power line 230 is connected to the base station 200. The first HDMI cable 210 transmits a video signal, a sound signal, and a character signal, 300 and the call signal to the camera adapter 100. [0033]

If necessary, the ENG application conversion system according to the present invention may further include a data converter, an optical cable, and a data decoder.

The data converter converts the signal transmitted through the composite cable 200 from the camera adapter 100 according to a conversion protocol set for long distance transmission and outputs the converted signal through the optical cable.

More specifically, the data converter can convert a transmission signal and a return signal by applying a conversion protocol conforming to the IEEE802.3U standard, and output the converted signal through an optical cable. The data converted to the data converter can transmit data of 500 m to 50 km without transmission error and loss.

Further, the optical cable is widely used for transmitting A / V data, and any optical cable can be used as long as this purpose can be achieved.

The data decoder decodes the signal received through the optical cable in the data converter according to the HDMI standard and transmits the decoded signal through the HDMI cable.

To this end, the data converter is connected to the terminal of the HDMI cable connected to the camera adapter, the data decoder is connected to the terminal of the HDMI cable connected to the base station, the connector provided on one side of the optical cable is connected to the data converter, The other connector is connected to the data decoder.

Referring to FIG. 1, an ENG application conversion system according to the present invention includes a base station 300.

The base station 300 is connected to the composite cable 200 and the main controller. The base station 300 receives the broadcast-related content information from the camera adapter 100 and displays the broadcast-related content information. In accordance with the selection of the director managing the relay car or the sub- And provides the additional information to the camera adapter 100 or the external connection device of the camera adapter 100. [

The base station 300 may be connected to a plurality of composite cables 200 as needed to transmit video signals, sound signals, and character signals provided from a plurality of ENG cameras to the main controller. When the camera men of each ENG camera are recorded And to transmit a return signal of the recorded picture inputted from the main controller to each camera adapter 100 so that the picture can be checked. Further, it is configured to transmit the control signal of the ENG camera inputted from the main controller to the corresponding ENG camera.

If necessary, the base station 300 may connect the main controller 300 with the main controller using HDMI, and convert the A / V data to transmit the broadcast recorded through the HDMI.

In addition, the base station 300 receives a sync signal for synchronizing signals for video and audio from a sync-generator, and simultaneously transmits the sync signal to a plurality of camera adapters 100 connected thereto. In other words, the sync signal provides a reference value so that the start points of a plurality of cameras can be matched.

3, the base station 300 according to the present invention includes a second optical signal converter 310, a second digital converter 320, and an HDMI input port (hereinafter referred to as a 'first HDMI input Quot; port "). At this time, the base station 300 may further include an HDMI output port (hereinafter, referred to as a 'second HDMI output port').

The second optical signal converter 310 first receives a transmission signal, for example, a video signal, an acoustic signal, and a character signal transmitted from the camera adapter 100 through the composite cable 200, and transmits the received signal to the main controller. At this time, the transmission signal may include a call signal of the camera man and a control signal of the camera module.

The second optical signal converter 310 generates a return signal by collecting the video signal and the sound signal of the recorded picture inputted from the main controller so that each cameraman can confirm the broadcast provided to the viewer secondarily, And transmits the return signal to each camera adapter 100 through the second HDMI cable 220 of the camera 200.

If necessary, the base station 300 may be provided with a second power line communication device 330 for applying a calling signal of a director to a power line and outputting the signal to the camera adapter 100. In addition, the second power line communication device 330 provides a function of extracting the call signal transmitted from the camera adapter 100 through the power line.

As described above, the present invention can be equipped with a power line communication device composed of a first power line communication device 130 and a second power line communication device 330 for smooth intercom signal transmission.

The second digital converter 320 combines the lens control signal and the desorption signal received from the main controller into a digital signal and transmits the digital control signal to the camera adapter 100 through the second HDMI cable 220 of the composite cable 200.

If necessary, the base station 300 may include a digital recorder (not shown) that provides a self storage function. The digital recorder stores the transmission signals transmitted from the respective camera adapters 100 in the base station 300 and can store the signals constituting the transmission signals as they are, , A video signal, an acoustic signal, and a character signal may be separately stored. At this time, the digital recorder may be configured to include a hard disk drive (HDD) or a solid state drive (SSD).

If the digital recorder is provided in the base station 300 as described above, a broadcast shot by the ENG camera can be stored in an HDD or an SSD and then provided to a broadcasting station, so that editing is easier than when a VTR or a VCR is used.

Meanwhile, when a digital recorder is provided in the base station 300, the camera adapter 100 may be configured to include a remote controller (not shown). The remote controller is installed on the surface of the camera adapter 100 and receives a control signal from a user of the ENG camera to control the operation of the digital recorder.

In the broadcasting system to which the conventional EFP camera is applied, the means for controlling the storage of the broadcast information photographed by the EFP camera is not provided in the EFP camera itself but installed in the secondary control room or the relay vehicle.

However, the ENG application conversion system according to the present invention can control the storage of the digital recorder with respect to the broadcast photographed by the ENG camera by operating the remote controller according to the selection of the ENG camera user, .

If necessary, the function of editing saved broadcasts can also be given to the remote controller, but the editing function can be restricted to be performed only in the secondary control room or the relay car by the master function.

Generally, about fifteen EFP cameras are installed in the stadium to relay the soccer game. However, if the ENG application conversion system according to the present invention is used, it is possible to replace the EFP camera with the ENG camera, which is a relatively expensive EFP camera compared to the ENG camera Can be minimized.

In addition, the ENG application conversion system according to the present invention can be used in an ENG camera disposed in a fire station to photograph a video image. These video images can be used for news and for evidence collection. Also, when the base station 300 is connected to the satellite relay device, the fire department can remotely monitor the fire situation.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that it is possible.

100: camera adapter 110: first optical signal converter
120: first digital converter 130: first power line communication device
200: Composite cable 210: 1st HDMI cable
220: second HDMI cable 230: power line
300: base station 310: second optical signal converter
320: second digital converter 330: second power line communication device

Claims (5)

A camera adapter connected to the ENG camera and collecting A / V data photographed by the ENG camera, transmitting each signal to the outside, and outputting a synthesized signal input from the outside to an ENG camera, A composite cable connected to the composite cable for receiving the signal transmitted from the camera adapter, transmitting the signal to the main controller, and transmitting the signal input from the main controller to the camera adapter through the composite cable A use conversion system for an ENG camera comprising a base station,
A first HDMI output port installed on the camera adapter;
A first HDMI input port installed in the base station;
A second HDMI output port installed in the base station;
A second HDMI input port installed in the camera adapter; And
And a power line communication device provided between the camera adapter and the base station for outputting a call signal to a power line or for outputting a call signal received through a power line,
Wherein the composite cable includes an HDMI cable connecting the first HDMI output port and the first HDMI input port. delete The use conversion system for an ENG camera according to claim 1, further comprising a third HDMI output port installed in the camera adapter and connected to an external AV device through an HDMI cable. delete 2. The method of claim 1,
An intercom signal, an intercom signal, and an intercom signal.

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