KR101673184B1

KR101673184B1 - An ip switching/routing apparatus by separated processing of sdi format image signals and the method thereof

Info

Publication number: KR101673184B1
Application number: KR1020150142304A
Authority: KR
Inventors: 박춘대; 김창수
Original assignee: (주)루먼텍
Priority date: 2015-10-12
Filing date: 2015-10-12
Publication date: 2016-11-07

Abstract

The present invention relates to an Internet protocol (IP) switching/routing apparatus through division processing of an image signal of a serial digital Interface (SDI) format and a method thereof, dividing an image signal formed by a color format, which is input through an SDI and has a YCbCr format, into a Y-element, a C-element or a plurality of bit slide elements, converting the Y-element, the C-element or the bit slide elements into each IP packet, then switching or routing the IP packet, extracting the Y-element, the C-element or a plurality of bit sliding elements from the switched or routed IP packet to be combined to be the image signal having an SDI format, and outputting the image signal. According to the present invention, an ultra-high definition video signal can be effectively switched/routed.

Description

TECHNICAL FIELD [0001] The present invention relates to an IP switching / routing apparatus and an IP switching / routing apparatus using SDI format,

More particularly, the present invention relates to an IP switching / routing apparatus and method using an SDI format video signal separation process, and more particularly, to an IP switching / luminance component and a chrominance component or a plurality of bit slice components, respectively, and then these components are converted into IP packets and then switched or routed. In the switched or routed IP packet, the Y component and the C component or a plurality of bit slice components And then outputting the combined video signal in the SDI format. The present invention also relates to an IP switching / routing apparatus and method thereof.

Recent developments in broadband Internet, image processing, and display technologies have made viewing a broadcast program or movie at home comfortable, making it commonplace for a common family. As the spread of digital TVs spreads, the preference for large screens is increasing in the market overall. However, in a large-sized display, when a specific area such as a human face is shaded with a conventional HD (high definition) resolution, a quadrangle pixel may be seen and the quality of the image may not be smooth. Therefore, ultra high definition UHD (Ultra High Definition) video service, which is 4 times more than 16 times higher than conventional HD video, is attracting attention as next generation broadcasting technology. Ultra high quality (UHD) video is expected to be widely used in various fields such as broadcasting, teleconference, education, medical, game and so on because it can provide realism and realism to viewers. However, one of the problems to be solved for ultra high definition (UHD) video services is the increase in the amount of data. [Table 1] is a table regarding the SMPTE standard for transmission of SD-SDI, HD-SDI, and UHD-SDI video formats. For example, a resolution of 4K UHD image (3840 * 2160, 60 frames) is defined as SMPTE ST-2082 (below 12G UHD-SDI) and requires a bandwidth of 12Gbit / s.

Therefore, when a commercial switch or a router is used to switch or route an image having the 12G UHD-SDI image format, a 10G switch / router can not process one channel. Therefore, a switch / router of 40G or more must be used. In this case, there is a problem that the service is not smooth due to the lack of the infrastructure of the switch / router supporting 40G, and the cost of service provision increases because one broadband traffic must be processed.

In the case of 12G UHD-SDI, 12G UHD-SDI signals can still be transmitted to multiple switches / routers such as 1G or 2.5G, even though 10G routers have bandwidth problems because of the bandwidth to process data. There is no apparatus or method capable of processing the data. That is, a switch / router having a structure for dividing and processing a broadband SDI signal such as 12G into a relatively low bandwidth signal such as a plurality of 1G or 2.5G has not yet been developed.

According to the present invention, in order to efficiently switch or route an ultra high image quality (UHD) image having a large bandwidth, an image composed of a color format of YCbCr format (e.g., 4: 2: 2 format) input through SDI An IP switching / routing device for converting a signal into a Y component and a C component, converting the signal into an IP packet, switching or routing the extracted signal, extracting a Y component and a C component from a switched or routed IP packet, We propose the method.

Korean Patent Laid-Open Publication No. 2011-0133854 (Dec. 14, 2011) relates to a compressed image delivery system using SDI and a method thereof, and it is an object of the present invention to provide a separate image And displaying the real-time image based on the image data received from the camera, wherein the real-time image is displayed on the basis of at least one camera that generates compressed image data, inserts the compressed image data into an auxiliary data packet of the image data and transmits the compressed image data, FIG. 2 is a block diagram illustrating a configuration of a digital still camera according to an exemplary embodiment of the present invention; FIG.

Korean Patent No. 1357182 (Apr. 23, 2014) relates to a high-speed signal processing HD SDI image transmission apparatus, and more particularly to a high-speed signal processing HD SDI image transmission apparatus which distinguishes and processes a video signal, an audio signal, a data signal and an Ethernet signal, To an apparatus and a device capable of processing the signal, and to be suitable for preventing optical loss from occurring.

U.S. Patent No. 7,756,118 (July 13, 2010) relates to an image switching system using a priority common network, which can remotely control a router control system through a plurality of user control panels, and ultimately, Video audio routing switchers and IP routers and to change the priority order of network traffic. Priority digital video data streams are prioritized so as to be preferentially transmitted over the network backbone rather than other non-priority data.

Although the above prior art documents disclose a video transmission, switching or routing method or device of the SDI video format, the 12G UHD-SDI Since there is no method or device for switching or routing a video image, the above-mentioned problem can not be solved and the above-mentioned problem is not solved.

As described above, according to the present invention, an image signal composed of a color format of YCbCr format input through SDI is divided into a Y component and a C component to be converted into an IP packet to switch or route IP packets, An IP switching / routing apparatus extracting a Y component and a C component from an IP packet, and outputting the combined signal to an SDI video signal, and a method therefor.

In order to solve the problems of the related art, the present invention separates a video signal composed of a color format of YCbCr into a Y component and a C component for an ultra high definition UHD image input through SDI, converts the video signal into an IP packet, And to provide an apparatus and method for effectively switching / routing an ultra-high quality video signal by extracting a Y component and a C component from the switched or routed IP packet and combining them with an SDI video signal, .

Further, the present invention can further improve the utilization rate of the bandwidth of the IP switch or router on the network by allowing the C component to be further subdivided into Cb and Cr components and to be processed by a lower bandwidth IP switching / routing apparatus. And an object thereof is to provide such a device.

Further, according to the present invention, not only the C component but also the Y component are further divided into bit slices so that one wideband video signal can be further subdivided into a lower bandwidth IP switching / routing device, The present invention provides a method and apparatus for improving the utilization rate of bandwidth of an IP switch or a router.

According to an embodiment of the present invention, there is provided an IP switching / routing apparatus for dividing an SDI format video signal into a plurality of components, A switching / routing module for switching or routing the converted IP packet, and a switching / routing module for converting the switched or routed IP packet into a plurality of video signal components, and converting the converted plurality of video signal components into an SDI format video signal And a post-processing module for combining the post-processing modules.

The routing apparatus may further include a synchronization control module for synchronizing processing of the video signal and the IP packet between the pre-processing module, the switching / routing module, and the post-processing module.

And separating the video signal of the SDI format into a Y component and a C component or a plurality of bit slice components, wherein the combining is performed by dividing the Y component and the C component or a plurality of bit slice components into a video of the SDI format Signal.

Further, the C component is further separated into a Cr component and a Cb component, and the Cr component and the Cb component are again bonded to the C component.

The IP switching / routing module may be configured to distribute a plurality of IP packets over a network through at least one IP switch or router.

According to still another aspect of the present invention, there is provided a method for IP switching / routing by SDI format video signal separation, comprising: a preprocessing step of dividing an SDI format video signal into a plurality of components and converting each of the components into IP packets; A switching / routing step of switching or routing each of the converted IP packets to a plurality of video signal components, and a post-processing for combining the converted plurality of video signal components into an SDI format video signal The method comprising the steps of:

The IP switching / routing method may further include a synchronization control step for synchronizing processing of the video signal and the IP packet between the preprocessing step, the switching / routing step, and the post-processing step.

Also, the IP switching / routing method is characterized in that a plurality of IP packets are distributed on a network through at least one IP switch or router.

The present invention relates to an IP switching / routing apparatus and method for performing SDI format video signal separation processing, and more particularly, to an IP switching / routing apparatus and method for dividing an image signal constituted by a YCbCr format color format input through SDI into Y component and C component, IP switching or routing, extracting Y component and C component again from the switched or routed IP packet, and outputting combined video signals in SDI format, thereby outputting a high-bandwidth, high-capacity It is possible to switch or route the UHD image, thereby significantly reducing the cost of constructing the infrastructure for the ultra-high quality UHD image processing and provision system.

In addition, according to the present invention, in providing a broadband ultra high definition (UHD) video service, a broadband service can be provided even through a network infrastructure having a low bandwidth processing capacity, There is an effect that can be maximized.

1 is a conceptual view for explaining an operation of an IP switching / routing apparatus through SDI format video signal separation processing according to an embodiment of the present invention.
FIG. 2 is a schematic diagram illustrating a concept of separating a large capacity video signal into a plurality of small capacity video signals in an IP switching / routing apparatus through an SDI format video signal separation process according to an exemplary embodiment of the present invention.
FIG. 3 is a block diagram illustrating a detailed configuration of an IP switching / routing apparatus through SDI format video signal separation processing according to an embodiment of the present invention. Referring to FIG.
FIG. 4 is a diagram illustrating a configuration in which each module of the IP switching / routing apparatus through SDI format video signal separation processing is distributed and processed through a wired / wireless network according to an embodiment of the present invention.
5 is a flowchart illustrating an operation of an IP switching / routing apparatus through SDI format video signal separation processing according to an exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements. Furthermore, specific structural and functional descriptions for embodiments of the present invention are presented for the purpose of describing an embodiment of the present invention only, and, unless otherwise defined, all terms used herein, including technical or scientific terms Have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as ideal or overly formal in the sense of the art unless explicitly defined herein .

For reference, the method or apparatus proposed in the present invention is more effective in the case of ultra-high picture quality, but since the effect is sufficient even in a high picture quality (HD) or SD picture quality, the SDI signal standard, UHD) class video signals.

1 is a conceptual view for explaining an operation of an IP switching / routing apparatus through SDI format video signal separation processing according to an embodiment of the present invention.

As shown in FIG. 1, the operation of the IP switching / routing device through the video signal separation process in the SDI format is performed by a video source device 200 such as a video camera, a broadcast transmitter, a broadcast server, a digital multimedia editor, Processing unit 110 through the SDI format video signal separation processing according to the present invention through the SDI, the preprocessing module 110 generates a YCbCr format color format 4: 2: 2, 4: 4: 4 format, etc.) into a Y component and a C component, and converts the separated Y component and C component into IP packets do. Through this process, the traffic of a large-capacity image having a wide bandwidth can be separated into a plurality of images of a half or lower bandwidth, thereby reducing the traffic and distributing the traffic.

For example, in the case of 12G UHD-SDI, 12Gbit data processing per second is required for switching or routing. The data structure of Y: Cb: Cr, which constitutes the color format of the 12G UHD- The Y component and the C component are separated into the Y component and the C component data of 6 Gbit / s, respectively. Further, if the C component is further separated into the Cb component and the Cr component, the Cb component and the Cr component of 3Gbit / s can be separated, respectively. Switching or routing the data thus separated into IP packets can reduce the processing capacity of the switcher or router. That is, data of a high processing capacity can be processed without problems with a plurality of routers or switches having a low processing capacity.

FIG. 2 is a schematic explanatory diagram of a concept of separating a large capacity video signal into a plurality of small capacity video signals in an IP switching / routing apparatus through SDI format video signal separation processing according to an embodiment of the present invention.

As described above, when the SDI video signal is 12G UHD-SDI, the preprocessing module 110 separates the 6G Y component, the 3G Cb component, and the 3G Cr component, respectively, into IP packets, Routing or switching by the IP switching / routing module 120 having a bandwidth of 10G and transmitted to the subscriber through a fiber optic line or a coaxial cable. The Ethernet device for switching or routing (Such as 10G, 40G, and 100G switches, routers, and subscriber network transmission devices) are still expensive, and it is impossible or difficult to match Ethernet devices that process low bandwidth to broadband traffic. Is required. As shown in FIG. 2, the preprocessing module 110 generates 10-bit Y-pixels, which are 6G-Y components of 12G UHD-SDI, by 5-bit bit- ), And allocate 1.2 G of traffic to each bit slice and process it. In addition, since it is unnatural to divide the 6G Y component into 6 bit slices by 1G, it may be desirable to generate and process twelve 0.5G traffic suitable for using the existing network infrastructure. Transforming the bit slices of the five 1.2Gs into IP packets and then servicing them through the 10G network is more effective than QoS (Quality of Service), SLA Service Level Agreement (DBA), Dynamic Bandwidth Allocation (DBA), etc.).

For example, you can not process 1.2G directly from a 1G Ethernet device (device), so if you divide a 10-bit Y-pixel of 6G by 4-bit x 2 + 1-bit x 2, ) x 6G = 2.4G, it is also possible to process two 4-bits with a 2.5G Ethernet device and the other with a (1/10) x 6G = 0.6G Ethernet device. Therefore, the treatment of 6G-Y components can be done with 2.5G 2, 1G 2 (or 2.5G 3).

If the Cb and Cr components are changed to the 4: 2: 0 format, the C component of 3G can be separated into 1.5G-Cb and 1.5G-Cr, and the C component of 3G can be separated into 2.5G and 1G. Thus, through an Ethernet device with multiple 1G line cards, large capacity switching such as 12G UHD-SDI can be divided into bit slices and processed on a bit plane basis.

As shown in FIG. 2, in the case of division by bit slice, care must be taken in the case of a Y component because the entire video signal is broken if there is a problem in transmission in the network even in one bit plane. Therefore, in the case of the Y component, it is necessary to perform redundancy processing, guarantee bandwidth, or guarantee QoS. Of course, in the case of the C component, although it is important data, since the Y component is much more important than the C component, it should be treated in consideration of this.

Next, a description will be continued with reference to Fig.

The data separated into the Y component and the C component by the preprocessing module 110 and converted into an IP packet is switched or routed by the IP switching / routing module 120. For example, 12G UHD-SDI can be separated into 6G-Y component, 3G-Cb component and 3G-Cr component, respectively, and thus efficiently processing images of high-capacity data exceeding 10G through IP switchers or routers of 10G capacity It is possible. If switching and routing of image data of 12G UHD-SDI is not performed through the separation and conversion process by the preprocessing module 110, an SDI dedicated switch / router of 40G or more is required. do.

The IP switching / routing module has a switch fabric for switching and routing, and switches and maps the source and destination addresses according to a switching or routing table that controls switching or routing. The functions of the hardware and software for switching or routing itself can be performed using functions provided by existing switches and routers.

The IP packet switched or routed by the IP switching / routing module 120 is again converted into Y, Cb, and Cr video signal components by the post-processing module 130, reassembled into the SDI video format, To a video output apparatus 300 such as a TV, a projector, a video editing apparatus, a display, or a broadcast receiver.

In addition, in the process of separating the SDI image signal into the Y, Cb, and Cr image signal components in the preprocessing module 110 and the post-processing module, the synchronization of each image signal must be performed.

That is, the synchronization control module 140 performs a process of separating the Y component and the C component by the preprocessing module 110, an IP packet conversion process, a switching or routing process by the IP switching / routing module 120, So that the image is seamlessly separated, transformed, and switched or routed in the entire system by providing necessary synchronization signals in the process of extracting the Y component and the C component from the IP packet by combining the Y component and the C component with the SDI do.

3 is a block diagram illustrating a detailed configuration of an IP switching / routing apparatus through SDI format video signal separation processing according to an embodiment of the present invention.

3, the IP switching / routing apparatus through SDI format video signal separation processing includes a preprocessing module 110, an IP switching / routing module 120, a post-processing module 130, a synchronization control module 140 The preprocessing module 110 includes an SDI signal separation unit 111 and an IP conversion unit 112. The postprocessing module 130 includes an SDI component extraction unit 131, And an SDI signal combining unit 132.

The SDI signal separation unit 111 of the preprocessing module 110 receives the super high resolution digital image from the at least one (n) image source devices 200 through SDI. The input SDI signal can be composed of 4: 2: 0, 4: 2: 2, and 4: 4: 4 color formats. The SDI signal separator 111 separates the Y component and the C component from the SDI video signal. If the SDI input signal is 12G UHD-SDI, it is separated into a 6G-Y component, a 3G-Cb component, and a 3G-Cr component. In this process, the separation of Y, Cb, and Cr components is performed in synchronization with the synchronization control signal provided by the synchronization control module 140. [

In addition, the SDI signal separation unit 111 in the preprocessing module 110 may further include a function of dividing the input SDI video signal into bit slices and processing the SDI video signals. In this case, according to the control of the synchronization control module, it is determined how many bit slices the SDI video signal is divided into, which can be divided and applied differently for the Y component and the C component, It can also be divided into bit slices. It is also possible to record this separation information in the header part of the IP packet and transmit it.

The IP conversion unit 112 of the preprocessing module 110 converts the Y, Cb, Cr, or bit slice components separated by the SDI signal separation unit 111 into IP packets. IP, and Y, Cb, Cr, or bit slice components, respectively. Then, Y, Cb, Cr, or bit slice components are extracted from the IP packet, and the SDI video signal format The synchronization control module 140 must be synchronized with the synchronization control signal inputted thereto. In addition, unique information about the video source apparatus 200 that provides video and the video output apparatus 300 that is the destination of the video may be inserted into the IP packet to be converted.

The data separated into Y, Cb, Cr, or bit slice components by the preprocessing module 110 and converted into IP packets is converted into Y, Cb, Cr, or bit slice components by the IP switching / IP packet switched or routed. The 12G UHD-SDI is separated into 6G-Y and 6G-C components, and the 6G-C components are divided into 3G-Cb and 3G-Cr components, respectively, and switched or routed through a 10G IP switching or routing module, respectively. It is possible. Of course, it is also possible to split each bit slice and switch or route through a 10G IP switching or routing module, respectively. The switched or routed IP packet is integrated through the SDI component extracting unit 131 and the SDI signal combining unit 132, And is output to the outside.

The SDI component extraction unit 131 of the post-processing module 130 extracts Y, Cb, Cr, or bit slice components again from IP packets switched or routed by the IP switching / routing module 120. And outputs the extracted components as an SDI signal in accordance with a synchronization control signal input from the synchronization control module 140. [

The SDI signal combiner 132 outputs the image signal components of Y, Cb, Cr, or bit slice extracted again by the SDI component extractor 131 to the synchronization control signal And outputs the combined signal through the SDI port to the video output device 300 connected to the SDI signal combining unit.

In the IP switching / routing apparatus according to the present invention, video signals of the SDI format are separated and processed as IP packets, and then combined into video signals of the SDI format for output. The signal must be processed in a synchronized state. Otherwise, the final switched / routed SDI video signal can not be displayed on the display or output device.

The synchronization control module 140 may be provided in the IP switching / routing apparatus through SDI format video signal separation processing according to the present invention, or may be provided as an independent node on the network. In any case, the synchronization control module 140 can extract the synchronization signal (Vsync, Hsync, etc.) from the input SDI video signal and can also grasp the color format and encoding standard of the video signal. The SDI video signal that has been originally input can be combined and output while maintaining the same identity as the SDI video signal according to the synchronization signal.

The sync signal includes a basic clock signal and includes all the bits necessary for separating and combining SDI signals including vertical sync (Vsync), horizontal sync (Hsync), active video interval, blank interval, color format, It is a signal extracted using information.

FIG. 4 is a diagram illustrating a configuration in which each module of an IP switching / routing apparatus according to an embodiment of the present invention is distributed over a wired / wireless network through video signal separation processing in SDI format.

Each module of the IP switching / routing apparatus through the SDI format video signal separation process can be switched or routed as a single device as shown in FIG. 3. However, as shown in FIG. 4, the preprocessing module 110 ), The IP switching / routing module 120, the post-processing module 130, and the synchronization control module 140 are distributed or routed through a wired or wireless network.

For example, the preprocessing module 120 is connected to the UHD broadcasting server 200, which is one of the video source devices, and outputs YCbCr video information constituting the SDI video signal output from the UHD broadcasting server 200 to the Y component and the C component A plurality of bit slices, and a preprocessing process of converting the separated image components into IP packets, respectively, and then transmitting them to the IP switching / routing module 120 through the wired / wireless network, a plurality of relatively narrow Band signal to be transmitted to the post-processing module. The video signal is separated and converted by receiving a synchronization control signal from the synchronization control module 140 through a wired / wireless network.

The IP packets preprocessed by the preprocessing module 110 are switched or routed through the IP switching / routing module 120, which is composed of at least one IP switcher and a router connected to each other through a wired / wireless network. For example, when the SDI video signal output from the UHD broadcasting server 200 is 12G UHD-SDI, the pre-processing module 120 separates the Y component of 6G, the Cb component of 3G, and the Cr component of 3G, Routing module 120. When each IP switcher / router 120 is divided into a plurality of IP switches / routers 120, 120, and 120, IP packets are switched or routed according to the switching / routing bandwidth and state. For example, when the switching / routing bandwidth of IP switcher / router 1 is 10G, and the bandwidth of IP switcher / router 2 and IP switcher / router 3 is 5G, the IP packet corresponding to Y component is switched by IP switcher / Or the IP packet corresponding to the Cb component and the Cr component can be switched or routed by the IP switcher / router 2, IP switcher / router 3, respectively. If IP switcher / router 3 can not be switched or routed due to failure or other data switching / routing, IP packets corresponding to the Cr component may be switched or routed by IP switcher / router 4. This plurality of parallel switching or routing is processed in synchronization with the synchronization control signal provided by the synchronization control module 140. [

The post-processing module 130 extracts an SDI signal component from the switched or routed IP packet, and the extracted component is converted into a single SDI video signal format by a synchronization control signal input from the synchronization control module 140 Lt; / RTI > Here, the synchronization control module 140 combines the SDI video signal format based on the extracted sync signal and color format information at the time of inputting the SDI video signal, and then transmits the SDI video signal through a SDI port to a portable terminal such as a smart phone, a projector, And the like to the video output device 300.

5 is a flowchart illustrating an operation of an IP switching / routing apparatus through SDI format video signal separation processing according to an exemplary embodiment of the present invention.

1 to 5, an ultrasound image from an image source device 200 such as a video camera, a broadcast transmitter, a broadcast server, or a digital multimedia editing device is input to the preprocessing module 110 through an SDI interface (S110), the SDI signal separator 111 of the preprocessing module 110 separates the YCbCr signal of the SDI video signal into a Y component and a C component or a plurality of bit slices, respectively (S120).

The IP conversion unit 112 of the preprocessing module 110 converts the Y, Cb, Cr, or bit slice components separated by the SDI signal separation unit 111 into IP packets. Cb, Cr, or bit slice components, and then the video signals of Y, Cb, Cr, or bit slices are again extracted and the SDI video And combines and outputs the signals. At this time, the SDI video signal is combined and output according to the synchronization control signal input from the synchronization control module 140. In addition, it is possible to add specific information about the video source device 200 that provides video to the IP packet and the video output device 300 that is the destination of the video to the IP packet in the conversion process (S130).

Next, the Y, Cb, Cr, or bit slice components separated by the preprocessing module 110 and converted into IP packets are subjected to Y, Cb, Cr, or bit slices by the IP switching / (S140). It is necessary to output and output the corresponding SDI video signal according to the destination of the IP packet since the video signal should be outputted through one output port though it is switched or routed according to each separated IP packet.

Then, the SDI component extracting unit 131 of the post-processing module 130 extracts Y, Cb, Cr, or a video signal component corresponding to a bit slice from the IP packet switched or routed by the IP switching / (S150).

The SDI signal combiner 132 combines each Y, Cb, Cr, or bit slice component restored by the SDI component extractor 131 according to a synchronization control signal input from the synchronization control module 140 And outputs it to the SDI output port (S160).

The IP switching / routing apparatus and method thereof according to the SDI format video signal separation process according to an embodiment of the present invention has been described above in detail.

As described above, the present invention relates to an apparatus and method for IP switching / routing through SDI format video signal separation processing, and more particularly, to an apparatus and method for IP switching / And then converts the IP packets into IP packets to perform IP switching or routing. The Y component and the C component are again extracted from the switched or routed IP packets and are combined into an SDI format video signal to be output to a general purpose low capacity IP switcher or router. This large capacity UHD image can be switched or routed to significantly reduce the cost of infrastructure construction for ultra high definition UHD image processing and provisioning systems.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be determined by the following claims.

100: IP switching / routing device through SDI format video signal separation
110: preprocessing module 111: SDI signal separation unit
112: IP conversion unit 120: IP switching / routing module
130: post-processing module 131: SDI component extraction unit
132: SDI signal combining unit 140: Synchronization control module
200: video source device 300: video output device

Claims

A preprocessing module for separating the video signal of the SDI format into a Y component and a C component or a plurality of bit slice components and converting each of the separated components into an IP packet;
A switching / routing module for switching or routing the converted IP packets, respectively; And
And a post-processing module for converting the switched or routed IP packet into a Y component, a C component, or a plurality of bit slice components, respectively, and combining the converted components into an SDI format video signal IP switching / routing device through video signal separation process in SDI format.

The method according to claim 1,
The IP switching / routing apparatus includes:
And a synchronization control module for synchronizing processing of the video signal and the IP packet between the pre-processing module, the switching / routing module, and the post-processing module,
The synchronization may include extracting a synchronization signal from the video signal of the SDI format and separating or combining the SDI video signal in accordance with the extracted synchronization signal so that the video of the SDI format And outputting the combined signal to the IP switching / routing unit.

The method according to claim 1,
2: 2 if the format of the C component is 4: 4: 4 or 4: 2: 0 if the format of the C component is 4: 2: 2, IP switching / routing device through video signal separation processing in SDI format.

The method according to claim 1,
Wherein the C component is further divided into a Cr component and a Cb component, and the Cr component and the Cb component are further combined as a C component.

The method according to claim 1,
The switching / routing module includes:
Wherein the plurality of IP packets are distributed on a network through at least one or more IP switches or routers in an SDI format video signal separation / processing apparatus.

A preprocessing step of separating the video signal of the SDI format into a Y component and a C component or a plurality of bit slice components and converting each of the separated components into an IP packet;
A switching / routing step of switching or routing the converted IP packet, respectively; And
And a post-processing step of converting the switched or routed IP packet into a Y component, a C component, or a plurality of bit slice components, respectively, and combining the converted components into an SDI format video signal IP switching / routing method by SDI format video signal separation.

The method of claim 6,
The IP switching / routing method includes:
Further comprising a synchronization control step for synchronization of processing of the video signal and the IP packet between the preprocessing step, the switching / routing step and the post-processing step,
The synchronization may include extracting a synchronization signal from the video signal of the SDI format and separating or combining the SDI video signal in accordance with the extracted synchronization signal so that the video of the SDI format And outputting the combined signal. The method of switching / routing IP-based video signal according to SDI format.

The method of claim 6,
2: 2 if the format of the C component is 4: 4: 4 or 4: 2: 0 if the format of the C component is 4: 2: 2, A method of IP switching / routing by SDI format video signal separation.

The method of claim 6,
Wherein the C component is further separated into a Cr component and a Cb component, and the Cr component and the Cb component are combined into a C component again.

The method of claim 6,
The IP switching / routing method includes:
IP switching / routing method via a plurality of IP video signal separation processing of the SDI format, characterized in that is configured to distributed processing via the at least one switch or router IP packets on the network.