KR101881370B1 - Display screen division image overlap control apparatus - Google Patents

Abstract

The present invention relates to a display screen division image overlapping control device and a method thereof. According to an embodiment of the present invention, the display screen division image overlapping control device includes: multiple digital image signal detection modules; multiple control signal output modules; a selection module; a digital image signal processing module; a digital image signal output module; a display module; a user input module; a user input signal detection module; a control module; and a control signal processing module.

Description

DISPLAY SCREEN DIVISION IMAGE OVERLAP CONTROL APPARATUS [0001]

More particularly, the present invention relates to an apparatus and method for controlling overlapping of a display screen divided image, and more particularly, to a method and apparatus for controlling overlapping of a plurality of video signals output from a plurality of digital video apparatuses, And more particularly, to a display screen divided image overlap control apparatus and method for controlling the digital video apparatus to be controlled.

In general, video security control systems and video control systems are widely used. Central control system is installed and operated in the control room. The central control system is for monitoring images by the controller by receiving image signals from a video security device or a video device installed at a remote site and displaying them on a monitor, and responding to events and accidents immediately.

The basic configuration of such a central control system is to correspond one monitor to one video device. However, since a large number of monitors are required, there is a problem that the cost of constructing the central control system is excessively increased.

In addition, in order to control a specific video device, the controller needs to view a monitor that displays an image input from a specific video device. In this case, it is difficult to watch a monitor that displays an image input from another video device. It was difficult to carry out the control efficiently because it was out of sight.

Korean Utility Model Registration No. 20-0389304 (registered on June 30, 2005) discloses a digital video recorder controller. The disclosed system is for remotely controlling a plurality of digital video recorders and a screen dividing device. The system includes a single switch for controlling a plurality of DVRs and a plurality of screen dividing devices and switching output video signals, And a plurality of controllers. In such a system, one monitor corresponds to one controller.

On the other hand, a screen division technique for dividing and displaying a plurality of images on one monitor is known.

Korean Patent Registration No. 10-0474211 (registered on Feb. 22, 2005) discloses a video surveillance and storage system using a plurality of screen division multiplexers. The disclosed system reduces a video signal of a camera channel input to each screen division / multiplexer and outputs a video signal only in an area occupied by the camera channel and outputs a high impedance to the other area, .

Korean Patent Registration No. 10-0627585 (registered on Mar. 19, 2006) discloses a video control apparatus and a display method thereof. In the case where the screen of the display unit is divided into a plurality of divided screens, if the number of divided screens is larger than the number of channels and there is a predetermined number of divided screens that are not allocated with a channel, And controls the monitoring data of the corresponding channel to be displayed through each of the plurality of divided screens and the enlarged screens.

Korean Patent Registration No. 10-0955026 (registered on Apr. 20, 2010) discloses an apparatus for selectively displaying divided images of a supervised image and a method thereof. The disclosed apparatus divides a surveillance image of one frame into a plurality of surveillance region images, outputs only the surveillance region images according to the security level, divides the allowed surveillance images into N sub regions, displays N And enlarges and outputs the image of the sub region selected by the user.

Korean Patent Registration No. 10-1218360 (registered on December 27, 2012) discloses a monitoring system and a control method thereof. The disclosed system includes a plurality of surveillance cameras, a multiplexer, a main monitor, and an image recording / reproducing apparatus. The multiplexer splits the video signals of a plurality of channels input from a plurality of surveillance cameras and outputs them to the main monitor.

The multiplexer displays a divided screen on the main monitor if an event such as an alarm or a motion such as a video loss, a fire alarm or an anti-theft alarm is not detected, and if the event occurs, It indicates that an event has occurred on the screen so that the controller can respond immediately.

According to the above-described prior arts, it is understood that a screen segmentation technique for dividing a plurality of images into a plurality of images by a channel in a video monitoring system, in particular, a video security monitoring system, and displaying the divided images on one monitor has been applied.

However, such a screen division technique is merely to divide and display an image of a plurality of channels on a single screen, and a technique capable of controlling a specific video apparatus desired by the controller while displaying images of a plurality of channels on such a screen Have not been proposed yet.

Domestic Utility Model Registration No. 20-0389304 Domestic patent registration No. 10-0474211 Korean Patent Registration No. 10-0627585 Domestic patent registration No. 10-0955026 Korean Patent Registration No. 10-1218360

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a video signal processing apparatus and a video signal processing method, When the control target digital video device is controlled in a state that is divided and displayed on one display screen, the device control video screen is displayed on the screen divided image corresponding to the control target digital video device without changing the shape of the current video image By controlling the display so that the overlap is displayed, it is possible to monitor the image input from the other digital video equipment while the controller is controlling the specific digital video equipment, so that the video control can be surely performed and the video control efficiency can be improved Split display screen to make To provide a lap control apparatus and method.

According to an aspect of the present invention, there is provided a digital video signal detection module comprising: a plurality of digital video signal detection modules connected to a plurality of digital video devices and a video cable, respectively, for detecting digital video signals output from the digital video devices; A plurality of device control video signal detection modules connected to a plurality of digital video devices and connected to a USB cable, respectively, for detecting a device control video signal for controlling a control target digital video device output from each digital video device; A selection module for selectively switching any one of the plurality of device control video signal detection modules; A digital image signal processing module for receiving the digital image signal detected from each digital image signal detection module and performing screen division and scaling signal processing on the digital image signal; A digital video signal output module for outputting video signals subjected to screen division and scaling processing from the digital video signal processing module; A display module for displaying the video signals output from the digital video signal output module on one display screen so that the user can view the video signals; A user input module for outputting a user input signal by a user's operation; A user input signal detecting module for detecting a coordinate value of a user input signal outputted from the user input module in real time; And controlling the operation of the digital video signal processing module so that the digital video signals detected by the digital video signal detection module are subjected to screen division and scaling processing according to a predetermined size, A video signal processing module for dividing and scaling the video signal from the digital video signal processing module and outputting the video signal through the digital video signal output module at a predetermined position and size on a display screen of the display module, Wherein the control module receives a coordinate value of the user input signal detected from the user input signal detecting module in real time and analyzes the coordinate value of the user input signal in correspondence with the coordinate value of the current user input signal Controlled target digital The control module controls the operation of the selection module so that the device control video signal detection module of the video device is selected and receives the device control video signal detected from the device control video signal detection module selected through the selection module, In a state in which a form of the entire image segmented in the current screen division is maintained on the display screen, a screen division image corresponding to the control target digital image device is displayed on the screen of the device having a plurality of control menu items And the control image is overlapped with the control image.

Here, the control module generates a specific control signal for controlling the corresponding control target digital video device in accordance with the coordinate value of the user input signal detected from the user input signal detection module, and controls the plurality of digital video devices and the USB cable A plurality of control signal output modules connected to the plurality of digital video devices and outputting specific control signals for controlling the plurality of digital video devices, respectively; And a control signal processing module for switching the generated specific control signal according to the control of the control module so as to be output to a control signal output module corresponding to the control target digital video device among the plurality of control signal output modules .

Preferably, the control module generates a coordinate conversion value of the user input signal by multiplying the coordinate value of the current user input signal by the screen ratio value of the predetermined screen division image information, The control signal processing module may control the operation of the control signal processing module to generate a specific control signal for controlling the control target digital video device and to transmit the specific control signal to the control signal output module corresponding to the control target digital video device, The control signal output module corresponding to the target digital video device can receive the specific control signal generated according to the coordinate conversion value of the delivered user input signal and output the specific control signal to the corresponding control target digital video device through the USB cable .

Preferably, each control signal output module and each digital video device can input / output a control signal using a universal serial bus (USB) communication.

Preferably, the control module may control the operation of the control signal processing module using a general-purpose input / output (GPIO) port.

Preferably, each digital video signal detection module can detect digital video signals output from each digital video device using I 2 C (Inter Integrated Circuit) communication under the control of the control module.

Preferably, each digital video signal detection module periodically extracts video resolution, video format, and audio information of the digital video signals output from each digital video device under the control of the control module and transmits the extracted video resolution, video format, and audio information to the control module The control module periodically checks the video resolution, the video format, and the audio information extracted through each digital video signal detection module to convert digital video signals of different video formats into a video format of YUV422 (YCBCR422) format To the digital video signal processing module.

Preferably, the control module is an I2C (Inter Integrated Circuit) communication module so that the predetermined video resolution and video format can be output to the digital video signal output module by using a linear scaler according to the input video resolution It is possible to control the operation of the digital video signal processing module through the control of the input video resolution.

Preferably, the predetermined video format may be a video format of YUV422 (YCBCR422) format.

Preferably, the control module may control an operation of the digital video signal output module through output mode control using I 2 C (Inter Integrated Circuit) communication.

Preferably, each digital video signal detection module and the digital video signal output module can input and output a digital video signal using a high-definition multimedia interface (HDMI).

Preferably, the user input module and the user input signal detection module can input and output a signal using a universal serial bus (USB) communication.

Preferably, the control module may control the operation of the user input signal detection module using a general-purpose input / output (GPIO) port.

Preferably, the digital video signal processing module divides digital video signals of different resolutions and video signal formats detected by the respective digital video signal detection modules into one display screen under the control of the control module, Field Programmable Gate Array (hereinafter referred to as " Field Programmable Gate Array ") technology.

Preferably, the user input signal detecting module may be connected to a user input module including a keyboard, a mouse, or a remote controller by wire or wirelessly.

Preferably, the plurality of digital video apparatuses can use different resolutions and video signal systems.

According to a second aspect of the present invention, there is provided a method of controlling an image processing apparatus, comprising the steps of: (a) detecting digital image signals output from respective digital image devices through a plurality of digital image signal detecting modules connected to a plurality of digital image devices; (b) dividing and scaling the digital image signals detected in the step (a) through a digital image signal processing module into a predetermined size according to preset screen segment image information; (c) outputting the image signals subjected to the image segmentation and scaling processing in the step (b) through the digital image signal output module; (d) dividing each image signal outputted in the step (c) through a display module into one display screen at a predetermined position and size and displaying the divided image signal; (e) outputting a user input signal by a user's operation through a user input module; (f) detecting in real time the coordinate value of the user input signal outputted in the step (e) through the user input signal detecting module; (g) analyzing the coordinate value of the user input signal detected in step (f) in real time through the control module and outputting the device control video signal connected to the control target digital video device corresponding to the coordinate value of the current user input signal, Selecting and switching the detection module; (h) detecting a device control video signal for controlling the corresponding controlled digital video device output from the controlled digital video device through the device control video signal detection module selected in step (g); And (i) maintaining the shape of the entire image subjected to the current screen division process on the display screen of the display module based on the device control video signal detected in the step (h) through the control module, And overlapping a device control image screen having a plurality of control menu items for performing a control of the control target digital image device on a screen divided image corresponding to the video device, .

Here, after step (i), (j) generates a specific control signal for controlling the corresponding control target digital video device in accordance with the coordinate value of the user input signal detected in step (f) through the control module step; And (k) outputting the specific control signal generated in the step (j) to the control target digital video device through the control target digital video device and the control signal output module connected with the USB cable .

Preferably, in the step (j), the coordinate conversion value of the user input signal is generated by multiplying the coordinate value of the current user input signal by the screen ratio value of the predetermined screen division image information through the control module, (K) may generate a specific control signal for controlling the corresponding control target digital video device according to the coordinate conversion value of the user input signal and transmit the specific control signal to the control signal output module corresponding to the control target digital video device, , And output the generated specific control signal to the corresponding control target digital video device through the USB cable in accordance with the coordinate conversion value of the delivered user input signal through the control signal output module corresponding to the control target digital video device have.

Preferably, a control signal can be input / output between the control signal output module and the control target digital video device using a universal serial bus (USB) communication.

Preferably, in the step (j), the control module may transmit the generated specific control signal using a general-purpose input / output (GPIO) port.

Preferably, the step (a) may detect digital image signals output from each digital video device through each digital video signal detection module under the control of the control module using I 2 C (Inter Integrated Circuit) communication.

Preferably, in step (a), the video resolution, the video format, and the audio information of the digital video signals output from the respective digital video devices are periodically extracted through the digital video signal detection module under the control of the control module Video format, and audio information through the control module and periodically checks the extracted video resolution, video format, and audio information to thereby output digital video signals of different video formats in a video format of YUV422 (YCBCR422) format And to be transmitted to the digital video signal processing module.

Preferably, the step (b) includes a linear scaler according to the input image resolution through the digital video signal processing module according to the control of the control module according to the input image resolution using I 2 C (Inter Integrated Circuit) And output the digital video signals detected in step (a) to the digital video signal output module in a predetermined video resolution and video format.

Preferably, the predetermined video format may be a video format of YUV422 (YCBCR422) format.

Preferably, the step (c) further comprises a step of controlling the output mode of the control module using I 2 C (Inter Integrated Circuit) Signals to the display module.

Preferably, each of the digital video signal detection module in step (a) and the digital video signal output module in step (c) uses a high-definition multimedia interface (HDMI) can do.

Preferably, the user input module in the step (e) and the user input signal detection module in the step (f) can input and output a signal using a universal serial bus (USB) communication.

Preferably, the step (f) includes the steps of: (a) inputting a user input signal output from the user input signal detecting module through the user input signal detecting module according to control of the control module using a general purpose input / output (GPIO) The coordinate value of the signal can be detected in real time.

Preferably, the step (b) further comprises: controlling the digital video signals of different resolutions and video signal formats detected in the step (a) through the digital video signal processing module according to the control of the control module, And can perform screen division and scaling signal processing using an FPGA (Field Programmable Gate Array) technology so as to be displayed in a divided manner.

Preferably, the user input signal detection module in the step (f) may be connected to a user input module composed of any one of a keyboard, a mouse and a remote controller in a wired or wireless manner.

Preferably, in the step (a), a plurality of digital video apparatuses can use different resolutions and video signal systems.

A third aspect of the present invention provides a computer-readable recording medium having recorded thereon a program capable of executing the above-described method of controlling a display screen divided image overlap.

The method of controlling a display screen divided image overlap according to the present invention can be implemented by a computer readable code on a computer readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

For example, the computer-readable recording medium includes a ROM, a RAM, a CD-ROM, a magnetic tape, a hard disk, a floppy disk, a removable storage device, a nonvolatile memory, , And optical data storage devices.

According to the display screen divided image overlap control apparatus and method of the present invention as described above, a plurality of video signals output from a plurality of digital video apparatuses are subjected to screen division and scaling processing, When the control target digital video device is controlled in a state in which the signals are divided into one display screen and the control target digital video device is controlled, By controlling the screen to be overlapped, it is possible to monitor the image input from other digital video equipment while the controller is controlling the specific digital video equipment, so that the video control can be surely performed, There is an advantage to be improved .

FIG. 1 is a block diagram of a display screen divided image overlap control apparatus according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a diagram illustrating an entire image and a device control image screen that have been subjected to screen division processing on a display screen of a display module according to an embodiment of the present invention.
FIG. 3 and FIG. 4 are overall flowcharts for explaining a method of controlling a display screen divided image overlap according to an embodiment of the present invention.

The above and other objects, features, and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, which are not intended to limit the scope of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

Each block of the accompanying block diagrams and combinations of steps of the flowcharts may be performed by computer program instructions (execution engines), which may be stored in a general-purpose computer, special purpose computer, or other processor of a programmable data processing apparatus The instructions that are executed through the processor of the computer or other programmable data processing equipment will generate means for performing the functions described in each block or flowchart of the block diagram. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory It is also possible for the instructions stored in the block diagram to produce an article of manufacture containing instruction means for performing the functions described in each block or flowchart of the flowchart.

Computer program instructions may also be loaded onto a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the data processing equipment are capable of providing the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or step may represent a portion of a module, segment, or code that includes one or more executable instructions for executing the specified logical functions, and in some alternative embodiments, It should be noted that functions may occur out of order. For example, two successive blocks or steps may actually be performed substantially concurrently, and it is also possible that the blocks or steps are performed in the reverse order of the function as needed.

FIG. 1 is a block diagram of an entire display screen divided image overlap control apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram of a display screen divided image overlap control apparatus according to an exemplary embodiment of the present invention. And an image for controlling a device and a device.

1 and 2, a display screen divided image overlap control apparatus 1000 according to an embodiment of the present invention includes a plurality of digital image signal detection modules 1010-1 to 1010-N, Control image signal detection modules 1020-1 to 1020-N, a selection module 1030, a digital image signal processing module 1040, a digital image signal output module 1050, a display module 1060, a user input module 1070 A user input signal detection module 1080, and a control module 1090, and the like.

In addition, the display screen divided image overlap control apparatus according to an embodiment of the present invention may further include a plurality of control signal output modules 1100-1 through 1100-N, a control signal processing module 1110, and the like . Meanwhile, the components shown in FIG. 1 are not essential, so that a display screen divided image overlap control apparatus according to an embodiment of the present invention may have more or fewer components.

Hereinafter, the components of the display screen divided image overlap control apparatus according to an embodiment of the present invention will be described in detail.

The plurality of digital video signal detecting modules 1010-1 to 1010-N are connected to the plurality of digital video devices 100-1 to 100-N and the video cables 10-1 to 10-N, respectively, And outputs the detected digital image signals to the digital image signal processing module 1040. The digital image signal processing module 1040 detects the digital image signals output from the digital image devices 100-1 to 100-N according to the control of the module 1090. [

Each of the digital video signal detecting modules 1010-1 to 1010-N is connected to each of the digital video devices 100-1 to 100-N by using, for example, I2C (Inter Integrated Circuit) communication under the control of the control module 1090. [ N of the digital image signals.

Each of the digital video signal detection modules 1010-1 to 1010-N controls the video resolution of the digital video signals output from the digital video devices 100-1 to 100-N according to the control of the control module 1090, Video format, and audio information, and may transmit the extracted information to the control module 1090.

The digital video signal detection modules 1010-1 to 1010-N can input and output digital video signals using, for example, a high-definition multimedia interface (HDMI).

Although the number of the digital video signal detection modules 1010-1 to 1010-N is the same as the number of the digital video devices 100-1 to 100-N, the present invention is not limited thereto. It can also be implemented.

Each of the digital video devices 100-1 to 100-N receives analog video signals obtained from a plurality of video acquisition modules (for example, a CCTV camera, etc.) (not shown) connected by wire or wirelessly, And outputs the converted data.

Each of the digital video apparatuses 100-1 to 100-N includes a digital video recorder (DVR) (Digital Video Recorder) that is capable of converting an analog video signal obtained from each video acquisition module into a digital video signal, A network video recorder (NVR), a personal computer (PC), a server, and the like.

At this time, it is preferable that the storage of the digital image signals converted through the digital video devices 100-1 to 100-N is stored in a separate storage unit (not shown) A hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a random access memory (RAM), an SRAM A read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, And possibly storage media.

Although not shown in the drawings, each of the digital video devices 100-1 to 100-N may include a signal transmission unit, a signal separation unit, an image processing unit, an audio processing unit, a control unit, and a power supply unit.

Here, the signal transmission unit may receive a video signal, an audio signal, and / or a combination signal transmitted from each image acquisition module through a coaxial cable, for example, and may transmit the combined signal to the signal separation unit, An acquisition module control signal may be transmitted to each of the image acquisition modules via the coaxial cable.

Also, the signal transmission unit may provide the power provided by the power supply unit to each image acquisition module through the coaxial cable.

The signal separating unit analyzes the video signal, the audio signal, and / or the combined signal received from the signal transmitting unit under the control of the controller and separates the video signal and the audio signal into video signals and audio signals, And transmits the separated audio signal to the audio processing unit.

The image processing unit converts the analog image signal separated and transmitted by the signal separating unit into a digital image signal under the control of the controller, and displays the digital image signal through a separate monitor.

In this case, when there are a plurality of images taken through the respective image acquisition modules, the image processing unit controls the plurality of shot images according to preset image channels (for example, 1 to 16 Channel), and display it on a separate monitor.

The image processing unit may include an image correction unit for correcting and outputting the image signal transmitted from the signal separation unit, a storage unit for storing the image corrected by the image correction unit, And an image output unit for performing digital image processing for displaying the image through a monitor of the display unit.

The audio processing unit processes the audio signal separated and transmitted from the signal separating unit and outputs the audio signal through a speaker.

The audio processing unit may include an audio correction unit for correcting and outputting the audio signal transmitted from the signal separation unit and an audio output unit for outputting the audio signal corrected by the audio correction unit through a speaker .

The control unit performs overall control of each of the digital video apparatuses 100-1 to 100-N, and controls the signal transmission unit, the signal separation unit, the image processing unit, the audio processing unit, and the power supply unit And controls the operation.

The power supply unit may receive external power and provide a power source used for the operation of each of the digital video devices 100-1 to 100-N. Also, the power source unit may receive power from the coaxial cable, The module can also provide power.

The plurality of digital video apparatuses 100-1 to 100-N configured as described above may use different resolutions and video signal systems.

Each of the image acquisition modules is installed in a designated specific place in the room and / or outside, and performs a function of acquiring a surrounding image, that is, an analog image signal.

Preferably, each of the image acquiring modules includes a plurality of camera units grouped. In this case, although not shown in the drawings, each camera unit may include an optical unit, a CCD (Charge Coupled Device) device, and a camera driver for driving the CCD unit. The bitmap data input to the CCD through the optical unit . The bitmap data may include both still image data and moving image data.

That is, each camera unit may use a method of projecting light collected through a lens of the optical unit onto the CCD device as a normal CCTV (Closed Circuit Television) camera to acquire one still image.

At this time, the CCD device converts the light intensity into an electrical signal and maintains the value for a while. The electrical signal is converted into an analog video signal by a video signal conversion circuit inside the CCTV camera, And sent to the digital video apparatuses 100-1 to 100-N.

Each of the device control video signal detecting modules 1020-1 to 1020-N is connected to each of the digital video devices 100-1 to 100-N and a universal serial bus (USB) cable 20-1 to 20-N And detects a device control video signal for controlling the control target digital video device output from each of the digital video devices 100-1 to 100-N under the control of the control module 1090, And outputs it to the processing module 1040.

The selection module 1030 selectively switches any one of the plurality of device control video signal detection modules 1020-1 to 1020-N according to the control of the control module 1090, .

The digital video signal processing module 1040 receives the digital video signals detected from the digital video signal detecting modules 1020-1 to 1020-N according to the control of the control module 1090 and performs screen division and scaling processing on the digital video signals And outputs it to the digital video signal output module 1050.

The digital video signal processing module 1040 controls digital video signals of different resolutions and video signal formats detected by the digital video signal detection modules 1020-1 to 1020-N according to the control of the control module 1090 It is preferable to perform screen division and scaling signal processing using, for example, FPGA (Field Programmable Gate Array) technology so as to be divided and displayed on one display screen.

The digital video signal output module 1050 receives the video signals subjected to the screen division and scaling processing from the digital video signal processing module 1040 under the control of the control module 1090 and outputs the received video signals to the display module 1060 based on the received video signals Function.

The digital video signal output module 1050 preferably inputs and outputs digital video signals using a high-definition multimedia interface (HDMI), for example.

The display module 1060 displays the video signals output from the digital video signal output module 1050 on a single display screen so that the user can view the video signals under the control of the control module 1090. [

The display module 1060 may be a liquid crystal display (LCD), a light emitting diode (LED), a thin film transistor-liquid crystal display (TFT LCD) (OLED), Flexible Display, Plasma Display Panel (PDP), Surface Alternating Lighting (ALiS), Digital Light Source Processing (DLP), Silicon Liquid Crystal (LCoS) Type field emission display (FED), laser TV (quantum dots laser, liquid crystal laser), optical dielectric liquid display (FLD), interferometric modulator display (iMoD), thick film dielectric electricity (TDEL) (QD-LED), telescopic pixel display (TPD), organic light emitting transistor (OLET), laser fluorescent display (LPD), and 3D display Standing long as at least one can include, but is not limited to this display (Display) such as a video signal, some would be also be included.

The user input module 1070 performs a function of outputting a user input signal by a user's operation. The user input module 1070 is preferably a mouse but is not limited thereto and may be any one that outputs coordinate values of an input signal such as a keyboard or a remote controller Does not matter.

The user input signal detecting module 1080 detects the coordinate value of the user input signal output from the user input module 1070 under the control of the control module 1090. [

The user input signal detection module 1080 is preferably connected to the user input module 1070 selected from the group consisting of a keyboard, a mouse, and a remote controller, for example, in a wired or wireless manner. At this time, in the case of wired communication, other communication means are possible, but preference is given to an input unit by a universal serial bus (USB) communication. For wireless communication, a Bluetooth wireless communication module is preferred. Here the user is usually the supervisor.

It is preferable that the user input module 1070 and the user input signal detection module 1080 input and output a control signal using, for example, a universal serial bus (USB) communication.

The control module 1090 is responsible for the overall control of the display screen divided image overlap control apparatus 1000 according to an embodiment of the present invention. In particular, each digital image signal detection module 1010-1 to 1010- And controls the operation of the digital image signal processing module 1040 so that the digital image signals are processed according to a predetermined size and a scaled signal according to the predetermined divided image information.

The control module 1090 transmits the image signals processed by the image segmentation and scaling processing from the digital image signal processing module 1040 to the display screen of the display module 1060 through the digital image signal output module 1050, So that the display module 1060 divides each video signal into one display screen and controls the display to be displayed.

Also, the control module 1090 receives the coordinate values of the user input signal detected from the user input signal detection module 1080 in real time, analyzes the coordinate values, and outputs the coordinate values to the control target digital video device The control module 1030 controls the operation of the selection module 1030 so that the device control video signal detection module 1020-1 of the devices 100-1 and 100-1 is selected.

The control module 1090 receives the device control video signal detected by the selected device control video signal detection module 1020-1 through the selection module 1030 and displays the device control video signal on the display screen of the display module 1060 A plurality of control menu items for performing the control of the corresponding control target digital video device are provided on the screen division image corresponding to the control target digital video device 100-1 while maintaining the form of the entire image subjected to the screen division process And to control the device control image screens to overlap with each other.

The control module 1090 also has a function of generating a control signal for controlling the corresponding control target digital video device 100-1 according to the coordinate value of the user input signal detected from the user input signal detection module 1080 can do.

In addition, the control module 1090 generates a coordinate conversion value of the user input signal by multiplying the coordinate value of the current user input signal by the screen ratio value of the predetermined screen division image information, The control signal generation module 110-1 generates a specific control signal for controlling the corresponding control target digital video device 100-1 and transmits it to the control signal output module 1100-1 corresponding to the control target digital video device 100-1 And may control the operation of the control signal processing module 1110.

In addition, the control module 1090 controls the digital video signal output module 1050 such that predetermined video resolution and video format can be output to the digital video signal output module 1050 using a linear scaler according to the input video resolution, It is possible to control the operation of the digital video signal processing module 1040 through control by the input video resolution using an integrated circuit (IC) communication. Meanwhile, the predetermined video format is preferably a video format of YUV422 (YCBCR422) format, for example.

In addition, the control module 1090 can control the operation of the digital video signal output module 1050 through output mode control using, for example, I 2 C (Inter Integrated Circuit) communication.

Also, the control module 1090 periodically checks the video resolution, the video format, and the audio information extracted through the digital video signal detection modules 1010-1 to 1010-N to detect digital video signals of different video formats YUV422 (YCBCR422) format video signal format to the digital video signal processing module 1040 in a constant manner.

The control module 1090 receives the user input signal detected from the user input signal detection module 1080 and receives the user input signal from the digital video device 100-1 through 100- The operation of the digital image signal processing module 1040 may be controlled so that the size and / or resolution of the image is changed.

The control module 1090 may also control the control signal processing module 1110 and / or the user input signal detection module 1080 using, for example, a general-purpose input / output (GPIO) .

On the other hand, if the user selects a control target digital video device (for example, 100-1) to be controlled by the user input module 1070 and inputs the control content by the user input module 1070, Is detected through the user input signal detection module 1080 and input to the control module 1090. [

Then, the control module 1090 can display on the display screen of the display module 1060 that the control target digital video device 100-1 is selected as the video signal split screen.

For example, it is possible to display the border of the image input from the control target digital video device 100-1 in a specific color or blink such a border so that the user can visually confirm that the control target digital video device 100-1 is selected As shown in FIG.

The control module 1090 also stores information on how the respective image signals processed by the digital image signal processing module 1040 have sizes and information on how the image signals are arranged on the display screen of the display module 1060, And by referring to it, it is possible to search for the image displayed on the display screen of the display module 1060, which is input from the control target digital video device 100-1 selected by the user.

That is, since the control module 1090 stores data for matching the video signal and the control signal for each of the digital video apparatuses 100-1 to 100-N, The image selected by the user and the control target digital image device 100-1 are matched with each other.

Then, the control module 1090 generates a control signal to control the selected control target digital video device 100-1 according to the control content input by the user, and supplies the control signal to the control signal processing module 1110. [ .

The control signal processing module 1110 receives a specific control signal generated from the control module 1090 according to the control of the control module 1090 and outputs the specific control signal to the corresponding control target among the plurality of control signal output modules 1100-1 to 1100- To be output to the control signal output module 1100-1 corresponding to the digital video apparatus 100-1.

Upon receiving the control signal transmitted by the switching function of the control signal processing module 1110, the corresponding control target digital video device 100-1 changes the operation state according to the control signal.

For example, when the control target digital video apparatus 100-1 transmits an image captured by the camera to the display screen divided image overlap control apparatus of the present invention in real time during transmission, When receiving the control signal to stop, the operation can be changed by stopping the real-time image transmission and transmitting the stored image.

As another example, the control signal generated from the control module 1090 may be to change the imaging magnification of the camera. The control module 1090 transmits a camera zoom-in control signal to the control target digital imaging device 100-1 while the image having the camera magnification of 1 is being transmitted to the display screen divided image overlap control device of the present invention In this case, for example, an enlarged image at a ratio of 4 times is transmitted to the display screen divided image overlap control apparatus of the present invention, so that the operation state can be changed.

The control target digital video device 100-1 receiving the control signal generated from the control module 1090 changes the operation state according to the control signal and outputs a new video signal corresponding to the changed operation state to the present invention To the display screen divided image overlap control device.

Then, the display screen divided image overlap control apparatus 1000 of the present invention transmits the specific video signal received from the control target digital video apparatus 100-1 to another digital video apparatus (for example, 100-2 To 100-N), and causes the display module 1060 to display a plurality of images in a divided screen.

At this time, the display screen divided image overlap control apparatus 1000 of the present invention maintains the video signal split screen state of the display module 1060 while controlling the corresponding control target digital video apparatus 100-1.

That is, in the display screen divided image overlap control apparatus 1000 of the present invention, when the control target digital video apparatus 100-1 is controlled, the apparatus control video received from the control target digital video apparatus 100-1 is divided into a single The display module 1060 displays the divided images on the display screen of the display module 1060 without dividing the display module 1060 into a plurality of images.

Therefore, even while the control target digital video apparatus 100-1 is being controlled, the controller can control the video images while watching the images input from the other digital video apparatuses 100-2 to 100-N, .

It is preferable that the control signal processing module 1110 and each of the digital video devices 100-1 to 100-N inputs and outputs a control signal using, for example, a universal serial bus (USB) communication.

The control signal output modules 1100-1 to 1100-N are connected to the digital video devices 100-1 to 100-N and the USB cables 20-1 to 20-N, respectively, 100-1 to 100-N from the control signal processing module 1110 under the control of the controller 1090 and outputs the specific control signals to the respective digital video apparatuses 100-1 to 100- N).

At this time, the control signal output module 1100-1 corresponding to the control target digital video device 100-1 to be controlled performs coordinate conversion of the user input signal transmitted from the control module 1090 and the control signal processing module 1110, And outputs the specific control signal to the corresponding control target digital video device 100-1 through the USB cable 20-1.

Meanwhile, although the control signal output modules 1100-1 to 1100-N applied to the embodiment of the present invention are implemented in the same number as the number of the digital video devices 100-1 to 100-N, It can also be implemented as one or more.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays Microprocessors, microprocessors, and electrical units for performing functions, as will be described in more detail below. In some cases, such embodiments may be implemented by the control module 1090.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software code may be stored in a storage module (not shown) and executed by the control module 1090.

Hereinafter, a display screen divided image overlap control method according to an embodiment of the present invention will be described in detail.

FIG. 3 and FIG. 4 are overall flowcharts for explaining a method of controlling a display screen divided image overlap according to an embodiment of the present invention. Unless otherwise specified, the control module 1090 performs the operation as a subject.

Referring to FIGS. 1 to 4, a method of controlling overlap of a display screen divided image according to an exemplary embodiment of the present invention includes: first, a plurality of digital video devices 100-1 to 100-N and video cables 10-1 to 10- N through the plurality of digital video signal detecting modules 1010-1 to 1010-N connected to the digital video devices 100-1 to 100-N (S100) .

At this time, the step S100 is performed by controlling the digital video apparatuses 100-N through the respective digital video signal detecting modules 1010-1 to 1010-N in accordance with the control of the control module 1090 using I2C (Inter Integrated Circuit) 1 to 100-N.

In step S100, digital signals outputted from the digital video apparatuses 100-1 to 100-N through the respective digital video signal detecting modules 1010-1 to 1010-N, under the control of the control module 1090, The video resolution, the video format, and the audio information of the video signals may be periodically extracted and transmitted to the control module 1090.

The control module 1090 periodically checks the extracted video resolution, video format, and audio information to periodically check digital video signals of different video formats in a video format of YUV422 (YCBCR422) Module 1040 via the network.

It is preferable that each of the digital video signal detecting modules 1010-1 to 1010-N in the step S100 inputs and outputs a digital video signal using, for example, a High-Definition Multimedia Interface (HDMI).

On the other hand, in step S100, it is preferable that the plurality of digital video apparatuses 100-1 to 100-N use different resolutions and video signal systems.

Thereafter, the digital image signal processing module 1040 processes the digital image signals detected in step S100 according to a predetermined size of the divided image information, and processes the divided image signals in a predetermined size (S200).

In this case, the step S200 may be performed, for example, in accordance with the input image resolution control of the control module 1090 using I2C (Inter Integrated Circuit) communication, using a linear scaler ) To output the digital video signals detected in step S100 to the digital video signal output module 1050 in a predetermined video resolution and video format. The predetermined video format is preferably a video format of YUV422 (YCBCR422) format, for example.

In step S200, the digital video signals of different resolutions and video signal types detected in step S100 are divided into one display screen through the digital video signal processing module 1040 under the control of the control module 1090 It is preferable to perform screen division and scaling signal processing using, for example, FPGA (Field Programmable Gate Array) technology.

Then, in step S300, the image signals subjected to the image segmentation and scaling processing are output through the digital image signal output module 1050 in step S200.

At this time, the step S300 is a step of controlling the output mode of the control module 1090 using, for example, I 2 C (Inter Integrated Circuit) communication, Signals to the display module 1060.

Meanwhile, the digital video signal output module 1050 in step S300 may input and output a digital video signal using, for example, a high-definition multimedia interface (HDMI).

Next, in step S400, each of the image signals output in step S300 through the display module 1060 is displayed on one display screen in a predetermined position and size.

Thereafter, the user input signal is output through the user input module 1070 (S500), and the coordinate value of the user input signal output from the user input signal detection module 1080 And detects it in real time (S600).

At this time, a signal is input / output between the user input module 1070 in the step S500 and the user input signal detecting module 1080 in the step S600 using a universal serial bus (USB) communication, for example. desirable.

In step S600, the control unit 1090 controls the user input signal based on the user input signal output from the user input signal detection module 1080, for example, according to the control of the control module 1090 using a general-purpose input / output (GPIO) The coordinate value of the signal can be detected in real time.

In addition, the user input signal detecting module 1080 in the step S600 may be connected to the user input module 1070 made of, for example, a keyboard, a mouse, or a remote controller by wire or wirelessly.

Next, the coordinate values of the user input signals detected in step S600 are analyzed in real time through the control module 1090, and the control target digital image devices (for example, 100-1 and 100-1) corresponding to the coordinate values of the current user input signals The device control video signal detection module 1020-1 connected by the USB cable 20-1 is switched and selected (S700).

Next, the device control video signal for controlling the corresponding control target digital video device output from the control target digital video device 100-1 is detected through the device control video signal detection module 1020-1 selected in step S700 (S800).

Thereafter, on the display screen of the display module 1060 on the basis of the device control video signal detected in the step S800 through the control module 1090, In operation S900, an apparatus control image screen having a plurality of control menu items for performing control of the corresponding control target digital image device is overlapped on a screen divided image corresponding to the digital image device 100-1.

In addition, although not shown in the drawing, after step S900, the control module 1090 controls the control target digital image device 100-1 according to the coordinate value of the user input signal detected in step S600 And a control signal output module 1100-1 connected to the control target digital video device 100-1 and the USB cable 20-1, And a second step of outputting a specific control signal to the corresponding control target digital video device 100-1.

Further, in the first step, the coordinate conversion value of the user input signal is generated by multiplying the coordinate value of the current user input signal by the screen ratio value of the pre-set screen division image information through the control module 1090, And generates a specific control signal for controlling the control target digital video device 100-1 according to the coordinate conversion value of the user input signal and outputs the specific control signal to the control signal output module corresponding to the control target digital video device 100-1 1100-1).

Meanwhile, in the first step, the control module 1090 preferably transmits the generated specific control signal using, for example, a general-purpose input / output (GPIO) port.

In the second step, the control signal output module 1100-1 corresponding to the control target digital video device 100-1 controls the generated specific control Signal to the corresponding control target digital video device 100-1 through the USB cable 20-1.

At this time, it is preferable that the control signal output module 1100-1 and the control target digital video device 100-1 input / output control signals using, for example, a universal serial bus (USB) communication.

Meanwhile, the display screen divided image overlap control method according to an embodiment of the present invention can also be implemented as a computer readable code on a computer readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

For example, the computer-readable recording medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a hard disk, a floppy disk, a removable storage device, a nonvolatile memory, , And optical data storage devices.

In addition, the computer readable recording medium may be distributed and executed in a computer system connected to a computer communication network, and may be stored and executed as a code readable in a distributed manner.

Although the present invention has been described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the invention is not limited thereto and that various changes and modifications may be made without departing from the scope of the present invention, It is possible to carry out the modification by branching, and this also belongs to the present invention.

10-1 to 10-N: video cable,
20-1 to 20-N: USB cable,
100-1 to 100-N: Digital video equipment,
1000: display screen divided image overlap control device,
1010-1 to 1010-N: digital image signal detection module,
1020-1 to 1020-N: device control video signal detection module,
1030: Optional module,
1040: Digital image signal processing module,
1050: Digital video signal output module,
1060: display module,
1070: user input module,
1080: User input signal detection module,
1090: control module,
1100-1 to 1100-N: control signal output module,
1110: Control signal processing module

Claims (33)

A plurality of digital video signal detection modules connected to a plurality of digital video devices using video signals of different resolutions and video signals, respectively, and detecting a digital video signal outputted from each digital video device;
A plurality of device control video signal detection modules connected to each digital video device through a USB cable and detecting a device control video signal for controlling the controlled digital video device output from each digital video device;
A plurality of control signal output modules, each of which is connected to each of the digital video devices through a USB cable and outputs a specific control signal for controlling each of the digital video devices;
A selection module for selectively switching any one of the plurality of device control video signal detection modules;
A digital image signal processing module for receiving the digital image signal detected from each digital image signal detection module and performing screen division and scaling signal processing on the digital image signal;
A digital video signal output module for outputting video signals subjected to screen division and scaling processing from the digital video signal processing module;
A display module for displaying the video signals output from the digital video signal output module on one display screen so that the user can view the video signals;
A user input module which is made up of a mouse and outputs a user input signal by a user's operation;
A user input signal detecting module connected to the user input module by wire or wirelessly and detecting a mouse coordinate value of the user input signal output from the user input module in real time;
And controlling the operation of the user input signal detecting module by using a general purpose input / output (GPIO) port and controlling the operation of the corresponding control target object based on the mouse coordinate values of the user input signal detected from the user input signal detecting module. And a control unit configured to generate a specific control signal for controlling the digital video apparatus and to process the digital video signals detected from the digital video signal detection module such that the corresponding digital video signals are divided and scaled according to a predetermined size, And controlling the operation of the digital video signal processing module and outputting the video signals subjected to the screen division and scaling processing from the digital video signal processing module to the display screen of the display module at a predetermined position and size through the digital video signal output module So that the display module A control module for dividing and displaying a signal on one display screen; And
And a control signal processing module for switching the generated specific control signal to be output to a control signal output module corresponding to the control target digital video device among a plurality of control signal output modules under the control of the control module,
Each digital video signal detection module detects digital video signals output from each digital video device using I 2 C (Inter Integrated Circuit) communication under the control of the control module, Video format and audio information of the digital video signals outputted from the control module, and transmits the extracted video resolution, video format and audio information to the control module,
The control module receives the mouse coordinate value of the user input signal detected from the user input signal detecting module in real time and analyzes the mouse coordinate value of the user input signal detected by the user input signal detecting module, Controlling the operation of the selection module so that the detection module is selected, receiving the device control video signal detected from the device control video signal detection module selected through the selection module, and displaying the current screen on the display screen of the display module The device control image screen having a plurality of control menu items for performing control of the corresponding control target digital image device is divided into a screen division image corresponding to the control target digital image device, ), And the current user input signal The control unit controls the corresponding control target digital video device in accordance with the mouse coordinate conversion value of the generated user input signal by multiplying the mouse coordinate conversion value of the user input signal by the screen ratio value of the pre- And controls the operation of the control signal processing module using the GPIO so as to transmit the specific control signal to the control signal output module corresponding to the control target digital video device, Video format and audio information extracted through the module are periodically checked to control digital video signals of different video formats to be transmitted to the digital video signal processing module in a video format of YUV422 (YCBCR422) format, Using Linear Scaler according to input image resolution Controls the operation of the digital video signal processing module through control of the input video resolution using the I2C communication so that the video format of the YUV422 (YCBCR422) format can be constantly output to the digital video signal output module, The control unit controls the operation of the digital video signal output module through the output mode control using the I2C communication, receives the user input signal detected from the user input signal detection module, and receives the user input signal from any one of the digital video equipment And controls the operation of the digital video signal processing module so that the size and resolution of the input image are changed. In addition, according to the user-selected input signal of the control target digital video device to be controlled by the user, On the display screen of the module, So that the border of the image input from the upper digital video device is displayed in a specific color or the border of the image input from the corresponding control target digital video device blinks so that the user can visually recognize that the control target digital video device is selected Control,
The control signal output module corresponding to the control target digital video device receives the specific control signal generated according to the mouse coordinate conversion value of the delivered user input signal and outputs the specific control signal to the control target digital video device through the USB cable In addition,
The digital video signal processing module may include a field programmable gate array (FPGA) device for dividing digital video signals of different resolutions and video signal formats detected by the respective digital video signal detection modules into one display screen under the control of the control module, Array) technique to divide and scaling the picture,
Each of the digital video signal detection module and the digital video signal output module inputs and outputs a digital video signal using a High-Definition Multimedia Interface (HDMI), and each control signal output module and each digital video signal output device performs a USB communication Wherein the control unit inputs and outputs the control signal using the USB communication between the user input module and the user input signal detection module. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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