KR102284358B1 - Projector having at least two data communication channel and method for controlling the same - Google Patents

Abstract

A mobile terminal is disclosed.
A mobile terminal according to an embodiment of the present invention includes a camera for acquiring an image, a display unit for displaying the acquired image, and a control unit, wherein the control unit provides a picture quality of a preset level or less from the acquired image. The display unit is controlled to display an indicator indicating a displayed portion on the image.

Description

A projector having at least two data communication channels and a control method therefor

The present invention relates to a projector. For example, the present invention relates to a projector having at least two or more data communication channels and a method for controlling the same.

Projectors can be classified into CRT (Cathode Ray Tube) projectors, LCD (Liquid Crystal Display) projectors, DLP (Digital Light Processing) projectors, and the like according to the technology for generating images. Hereinafter, each projector will be briefly described.

A CRT projector is also called a PRT projector or a beam projector in a way that amplifies the image signal of an external device from the CRT and focuses it on the screen through a projection lens.

The LCD projector is a type of projector that transmits the light generated from the lamp through the transmissive LCD panel, collects the images, and then forms the image on the screen through the projection lens.

In addition, the DLP projector is a type of projector that enlarges and projects the light generated from the lamp by passing through the wheel and reflecting the image on the DMD (Digital Micro Device) chip in which more than 1 million micro driving mirrors are integrated. The DMD chip realizes high-resolution, high-definition images by selectively reflecting or not reflecting light by switching a fine mirror thousands of times per second.

However, most current projectors provide only a simple function of outputting a video signal as it is from a source of an external device connected by wire.

SUMMARY OF THE INVENTION The present invention aims to solve the above and other problems.

For example, it is an object of the present invention to provide a projector additionally including a module related to wireless network performance and camera performance.

Furthermore, it is another object of the present invention to provide a more convenient UX/UI function to users by using two or more projectors.

It is another object of the present invention to define a relationship between information collected from two or more sources and to output only filtered additional information through a projector.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

According to one aspect of the present invention to achieve the above or other object, the projector, a first network communication module for accessing at least one or more mobile devices connectable to the projector, and specific main data stored in the memory of the mobile device A first projection lens outputting to the first area, a second network communication module accessing an external network connected wirelessly or by wire, and at least one sub having metadata corresponding to specific main data output to the first area and a controller for collecting data, and a second projection lens for outputting the collected at least one or more sub data to a second area.

The effects of the projector and its control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is a technical effect that it is possible to provide a more convenient UX/UI function to the user by using at least one camera or a projector.

In addition, according to at least one of the embodiments of the present invention, it is possible to define a relationship between information collected from two or more sources and to output only filtered additional information through a projector.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

1 is a block diagram illustrating an example of a laser projector according to an embodiment of the present invention.
2 is a block diagram illustrating detailed operations of the laser driving unit 120 and the laser light source 130 of the laser projector according to an embodiment of the present invention.
3 is a block diagram including an internal module of a projector according to an embodiment of the present invention.
4 is a diagram illustrating two projectors physically coupled in a left and right direction according to an embodiment of the present invention.
5 is a diagram illustrating two projectors physically coupled in an up-down direction according to an embodiment of the present invention.
6 is a diagram illustrating a physically coupled projector and a mobile device according to an embodiment of the present invention.
7 is a view including a touch module and a speaker additionally added to the projector according to an embodiment of the present invention.
8 is a diagram illustrating video data output from a projector according to an embodiment of the present invention.
9 is a diagram including video data and noise output from a projector according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating a method for solving the noise shown in FIG. 9 .
11 is a diagram illustrating a projector outputting different video data to two different surfaces according to an embodiment of the present invention.
12 is a diagram for explaining a previous process for implementing FIG. 11 .
13 is a diagram for explaining a process after implementing FIG. 11 .
14 is a diagram illustrating that the projector outputs different video data on the same surface according to an embodiment of the present invention.
FIG. 15 is a diagram for explaining a process in which a projector filters video data received from different sources according to a preset criterion according to another embodiment of the present invention.
FIG. 16 shows a first embodiment in which the projector separates and processes a first area and a second area on the same plane according to another exemplary embodiment of the present invention.
17 illustrates a second embodiment in which the projector separates and processes a first area and a second area on the same surface according to another exemplary embodiment of the present invention.
18 illustrates a third embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.
19 shows a fourth embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.
20 shows a fifth embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.
And, FIG. 21 is a flowchart illustrating in detail a method for controlling a projector according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, and a slate PC. , tablet PCs, ultrabooks, wearable devices, for example, watch-type terminals (smartwatch), glass-type terminals (smart glass), HMD (head mounted display), etc. may be included. there is.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiment described in this specification may be applied to a fixed terminal such as a digital TV, a desktop computer, and a digital signage, except when applicable only to a mobile terminal. will be.

Furthermore, although a laser projector is described as an example in FIGS. 1 and 2 below, the present invention is applicable to any projector other than a laser projector.

1 is a block diagram illustrating an example of a laser projector according to an embodiment of the present invention.

An example of the laser projector according to the present invention includes a plurality of laser light sources 130 generating laser light, a control unit controlling each generated laser light to be incident on a specific area on the screen with a predetermined time difference, and each laser light on the screen. and a scanner 150 that scans the image.

Here, the laser projector according to the present invention includes a driving signal generating unit 110 that generates a laser driving signal for driving the laser light source 130 and a scanner driving signal for driving the scanner 150 , a driving signal generating unit ( The laser driving unit 120 and the scanner driving unit 140 for driving the laser light source 130 and the scanner 150 according to the laser driving signal and the scanner driving signal generated in 110 , respectively, may be further included.

Here, the driving signal generator 110 receives an image signal input from an image signal output device such as a personal computer (PC) or audio/video (A/V) system, and a laser for signal processing of the received image signal. A driving signal and a scanner driving signal for driving the scanner are generated.

The laser light source unit 130 generates laser light, and may include a plurality of light sources, such as red, green, and blue laser light sources, which are generally related to image signal processing.

Accordingly, the driving signal generator 110 generates a video signal, a horizontal sync signal, and a vertical sync signal for red (R), green (G), and blue (B) corresponding to each laser light source to the generated laser driving signal. include

Also, the driving signal generator 110 may generate a scanner driving signal based on a horizontal sync signal and a vertical sync signal of the generated laser driving signal. In this case, the generated scanner driving signal may include horizontal and vertical scanner driving signals.

The laser driving unit 120 generates a voltage or current for driving the laser light source 130 including a red light source, a green light source, and a blue light source according to a received laser driving signal, and the laser light source 130 generates an applied voltage. Alternatively, the laser light is generated at a level corresponding to the current value.

The scanner driving unit 140 includes a sine wave generating circuit, a triangular wave generating circuit, a signal synthesis circuit, and the like, and generates a driving frequency for driving the scanner 150 according to a received scanner driving signal, and the scanner 150 is horizontal. And by scanning the laser light on the screen 190 by driving horizontally and vertically according to the vertical driving frequency, it is possible to implement an image on the screen 190 .

The scanner 150 is each laser light input from each laser light source in the laser light source unit 130, for example, a red laser light source (R), a green laser light source (G), and a blue laser light source (B) with different irradiation angles. , and irradiates each of the received laser beams to the screen 190 according to the scanner driving signal under the control of the scanner driving unit 140 .

Furthermore, since the driving speed of the scanner 150 that advances each horizontal line of one frame image is different, the brightness of the displayed image may not be uniform, so it is possible to design an additional module.

For example, the laser projector according to the present invention may further include a pixel position detecting unit 160 , a compensation value determining unit 170 , and a compensating unit 180 . However, it is obvious that the scope of the present invention should be determined according to the matters described in the claims.

Here, in the laser projector according to the present invention, the brightness of the output image may be more uniformly corrected within the same condition by compensating for the laser driving signal generated by the driving signal generator 110 .

The pixel position detector 160 detects a position of a pixel corresponding to one frame image from the generated scanner driving signal. That is, the pixel position detector 160 may detect a current pixel position of an image to be displayed on the screen 190 .

The compensation value determining unit 170 determines a brightness compensation value corresponding to the detected pixel.

The compensator 180 detects the brightness compensation value according to the determined brightness compensation value so that the brightness compensation value gradually increases or decreases as the pixel moves away from at least one reference pixel among all pixels corresponding to each horizontal line of one frame image. A compensation signal for compensating a laser driving signal corresponding to the pixel may be generated.

The compensation signal generated by the compensating unit 180 is output to the driving signal generating unit 110 , and the driving signal generating unit 110 generates a laser driving signal compensated by the inputted compensation signal.

In addition, the laser driving unit 120 drives the laser light source 130 according to the compensated laser driving signal, so that the laser light source 130 may generate the compensated laser light.

Next, the scanner 150 scans the compensated laser light onto the screen 190 , thereby providing an image having a uniform brightness in which the brightness distortion of the image according to the speed change of the scanner 150 is compensated.

2 is a block diagram illustrating detailed operations of the laser driving unit 120 and the laser light source 130 of the laser projector according to an embodiment of the present invention.

Referring to FIG. 2 , the laser projector separates an input image signal into a corresponding image signal according to each laser light source, and allows each separated image signal to be irradiated onto a screen through a corresponding laser light source 240 .

Here, each separated image signal is provided on the screen with a predetermined time difference according to the present invention to be described later, and for image merging in order to solve an image distortion problem that may occur, a memory (line memory or frame) according to each laser light source memory) 210 is temporarily stored.

The image signal temporarily stored in the memory 210 is processed in the form of an image to be output from the laser projector by the image processor 220 , and drives the laser light source according to the laser driving signal generated by the above-described driving signal generator 110 . The laser light corresponding to the processed image is generated by the laser light source 240 through the laser driving unit 230 for

According to an embodiment of the present invention, the generated laser light of each laser light source is irradiated to generate a predetermined time difference in a specific area on the screen so that the amount of laser light incident on the specific area is as uniform as possible.

3 is a block diagram including an internal module of a projector according to an embodiment of the present invention.

On the other hand, although emphasized again, the projector shown in FIGS. 1 and 2 is one embodiment, and any projector that can implement any one of FIGS. 3 to 21 is within the scope of the present invention.

3, the projector 300 having at least two or more data communication channels according to an embodiment of the present invention includes a first network communication module 310, a second network communication module 320, and a controller. 330 , a projection lens 340 and a camera 350 , and the like. Of course, it is also possible to delete or add some modules according to the needs of those skilled in the art. For example, using only one network communication module, removing a camera, or designing a modified camera with two cameras also falls within the scope of the present invention.

The first network communication module 310 is designed to access at least one or more mobile devices connectable to the projector 300 . More specifically, for example, a wired cable, wireless Wi-Fi, or Bluetooth method may be adopted.

Meanwhile, in FIG. 3 , a case in which the projection lens 340 is designed as one is illustrated, but adopting two projection lenses also falls within the scope of the present invention. A case in which the projection lens 340 is implemented as a first projection lens and a second projection lens will be described below as an example.

The first projection lens outputs specific main data stored in the memory of the mobile device to the first area.

The second network communication module 320 is designed to access an external network connected by wire or wirelessly.

The controller 330 is designed to collect at least one or more sub data having metadata corresponding to the specific main data output to the first area.

In addition, the second projection lens outputs the at least one or more collected sub data to the second area. For example, the first area and the second area are not the same. In particular, the first region and the second region will be described in detail below with reference to FIG. 15 .

Each of the main data and the sub data corresponds to, for example, still image data or video data. More specifically, for example, when the main data is a still image, the sub data is also a still image, whereas when the main data is a moving image, the sub data also corresponds to a moving image.

The metadata includes at least one of GPS location information, direction information, and tag information input by a user. For example, when a photo is taken using a mobile device, location information (ex: GPS information) and angle of the shooting direction (ex: east-west, north-south direction) information of the photographed photo are stored in the memory, and the projector is stored in the memory. Analyze the metadata stored in

Furthermore, the controller 330 is designed to detect only the metadata of the specific main image data and sub-image data whose error range is within a preset standard.

In addition, the controller 330 primarily filters the sub-image data having the GPS location information of the specific main image data and the GPS location information within the first error range, and the firstly filtered sub-image data. The method further includes a filtering module for secondarily filtering sub-image data having direction information and direction information within a second error range. In this regard, it will be described in detail below with reference to FIG. 15 .

Meanwhile, although not shown in FIG. 3 , the projector 300 according to an embodiment of the present invention analyzes a camera that captures specific image data output to the first area and color information of the captured specific image data. It further includes an analysis module to The filtering module is designed to three-dimensionally filter the sub-image data corresponding to the analyzed color information. In this regard, it will be described later in detail with reference to FIGS. 8 to 10 .

The first region (eg, region 1510 or region 1530 shown in FIG. 15) and the second region (eg, region 1520 or region 1540 shown in FIG. 15) do not overlap in one plane, The second area is positioned around the first area.

Further, the first area is formed from the first projection lens of the projector 300 , the second area is formed from the second projection lens of the projector 300 , and further the first area and the second area It is also possible to be located on different sides. In this regard, it will be described later in more detail with reference to FIGS. 11 to 13 .

4 is a diagram illustrating two projectors physically coupled in a left and right direction according to an embodiment of the present invention. While FIG. 3 mainly shows the internal module of the projector according to an embodiment of the present invention, FIG. 4 mainly shows the external configuration. In particular, Figure 4 combines two projectors in the left and right directions according to an embodiment of the present invention.

As shown in FIG. 4, the first projector 410 has a projection lens 411 and a camera 412 positioned at the front, while the second projector 420 has a projection lens 421 positioned at the front and rear. A camera 422 is located. The first projector 410 and the second projector 420 may receive and process video data from different sources, respectively.

Meanwhile, since the camera 412 located in the front is located in the same direction as the video data output from the projection, it is possible to directly monitor and control the video data. In this regard, it will be described later in more detail with reference to FIGS. 8 to 10 .

Furthermore, the camera 422 located on the rear side is located in the opposite direction to the video data output from the projection, so as to recognize a gesture of a user watching the video data, and the like, the first projector 410 or the second projector 420 . ) is designed to control at least one or more of

5 is a diagram illustrating two projectors physically coupled in an up-down direction according to an embodiment of the present invention. Whereas in Fig. 4 described previously, two projectors are shown coupled in the left and right directions. 5 shows that the two projectors are coupled in the vertical direction.

As shown in FIG. 5 , a projection lens 511 and a camera 512 are positioned in front of the first projector 510 , while a projection lens 521 is positioned in the front of the second projector 520 . Although not shown in FIG. 5 , the second projector 520 may additionally include a camera on the rear side.

Unlike FIG. 4 , in a state in which the first projector 510 and the second projector 520 are fixed, it is also possible to freely change the directions of the projection lenses 511 and 521 . However, it is also seen that the first projector 510 and the second projector 520 are designed to be rotated only in a partially fixed state so that the camera 512 can continuously monitor the user's gesture or video data. It belongs to the scope of the invention. When designed in this way, there is a technical effect of maintaining the same orientation of the camera and the lens.

6 is a diagram illustrating a physically coupled projector and a mobile device according to an embodiment of the present invention. Unlike the previous drawings, the projector illustrated in FIG. 6 is connected to a mobile device by wire or wirelessly.

Unlike the drawings described previously, as shown in FIG. 6 , the projector 600 according to an embodiment of the present invention is configured as one, and includes two projection lenses 610 and 620 , but direction adjustment is not possible. designed to be possible

Furthermore, the bottom surface of the projector 600 includes a groove connectable to the cradle 630 . In addition, since the cradle 630 is designed to be adjustable in height, the user can select the surface on which the video data is output.

Meanwhile, the top surface of the projector 600 further includes a cradle 640 connectable to the mobile device 650 . Furthermore, by designing the projector 600 to further include a module for processing video data captured from the camera of the mobile device 650 , there is an advantage in that there is no need to provide a separate camera.

In addition, the cradle 640 is designed to perform data communication between the mobile device 650 and the projector 600 by not only having a simple physical fastening means, but additionally including an electronic medium such as a cable. Accordingly, there is an advantage in that it is possible to solve a problem when wireless communication of at least one of the mobile device 650 and the projector 600 is impossible.

In addition, it is a feature of the present invention to design the speaker to be positioned on the side surface of the projector 600 .

7 is a view including a touch module and a speaker additionally added to the projector according to an embodiment of the present invention.

Unlike FIG. 6 , FIG. 7 includes a front camera 730 and a rear camera 740 . This is an option in case the camera module is not included in the device connected to the projector 700 or is broken.

The projector 700 includes two projection lenses 710 and 720 and is designed to output video data received from different sources, respectively.

Furthermore, the projector 700 additionally includes a touch module 750 on the top surface. Accordingly, a desired content can be selected by using the touch module 750 included in the projector 700 without the user separately operating an external device connected to the projector 700 .

The features of the projector according to an embodiment of the present invention described above with reference to FIGS. 3 to 7 will be summarized and described as follows. Of course, this is one feature, and the scope of the present invention should be interpreted according to the matters described in the claims.

The projector according to an embodiment of the present invention may be connected to any type of external device (eg, a mobile device), may be mounted in a docking form, may be electrically wired, or may be electrically connected. It may also be made with a wireless connection (eg, Wi-Fi, Bluetooth, etc.).

In addition, the projector according to an embodiment of the present invention may output its own video data (image data, still image, moving picture, etc.) by utilizing the built-in/external memory serving as the first source.

Furthermore, the second source is connected to a cloud server or the like through a network to output video data different from the video data output from the first source. Then, the video data received from the mobile device, which is a third source, is output, and it is a feature of the present invention that the video data is not the same as the video data from the first and second sources.

On the other hand, it is another feature of the present invention to filter video data from the first, second, and third sources according to a preset criterion, and specific examples will be described later with reference to FIGS. 11 to 20 . .

8 is a diagram illustrating video data output from a projector according to an embodiment of the present invention. 8 assumes video data output through one projection lens. Multiple video data output through two or more projection lenses will be described below with reference to FIGS. 11 to 20 .

The wall in the home or outside the home output through the projector according to an embodiment of the present invention is used. Of course, it is also possible to design to output video data from the projector through a separate screen.

As shown in Fig. 8, the screen 800 displays video data received from the projector. The projector can be understood with reference to the drawings described in the previous drawings.

Of the video data output on the screen 800 , a general broadcast screen is output to the first area 810 and a menu screen is output to the second area 820 . It is assumed that the first region 810 and the second region 820 are video data received from one source, but it will be said that the video data received from different sources also falls within the scope of the present invention.

9 is a diagram including video data and noise output from a projector according to an embodiment of the present invention.

Similarly to the description shown in FIG. 8 , in FIG. 9 , the screen 900 outputs a general broadcasting screen to the first area 910 and a menu screen is output to the second area 920 . However, the screens shown in FIGS. 8 and 9 are received from the projector according to an embodiment of the present invention and are further implemented based on light output from the projection lens.

Accordingly, when the user intentionally or accidentally covers the projector lens, as shown in FIG. 9 , noise 921 is output to a predetermined area. Usually it is very likely to be a black screen similar to a shadow.

In this case, the user cannot properly recognize the menu screen on the second area 920 and cannot select a desired function. According to the prior art, there is a problem in that the user must move to a place within a range that does not cover the projector lens.

A solution for solving such a problem will be described below with reference to FIG. 10 .

FIG. 10 is a diagram illustrating a method for solving the noise shown in FIG. 9 .

As described above, the projector according to an embodiment of the present invention has its own camera. Accordingly, it is possible to continuously monitor the video data on the screen output through the projector.

When a black screen partially covers the screen occurs, the projector 1000 according to an embodiment of the present invention automatically moves the menu screen from the initial area 1002 to the new area 1003 as shown in FIG. 10 . In particular, it is sufficient to move as much as the horizontal axis length of the region 1001 in which the black screen occurs.

Meanwhile, the black screen may be a normal video signal or may correspond to the above-described error. In order to distinguish these two situations, the projector according to an embodiment of the present invention first continuously monitors video data on the screen using a camera.

As a result of monitoring, when video data composed of black pixels is recognized in an area having a size greater than or equal to a preset size and video data composed of black pixels is recognized for a predetermined time or longer, it is considered that an error has occurred. When both of these conditions are satisfied, it is the most accurate way to detect the error mode experimentally.

11 is a diagram illustrating a projector outputting different video data to two different surfaces according to an embodiment of the present invention.

In the previous drawings, a case in which the projector according to an embodiment of the present invention outputs video data to the same surface has been described, but in FIG. 12, a case in which the projector outputs different video data to two different surfaces will be described in detail. I will do it.

11, the projector 1100 according to an embodiment of the present invention may include two projection lenses, and the positions are fixed to form a right angle to each other. Accordingly, one projection lens is designed to face one wall (or screen) 1120 in the home and the remaining one projection lens is designed to face the other wall (or screen) 1130 .

Furthermore, since the projector 1100 is connected to the mobile device 1110 , it is possible to receive image data or a music file from the mobile device 1110 in real time. Of course, it is obvious that receiving data from an external network (eg, the Internet) other than the mobile device 1110 also falls within the scope of the present invention.

The video data output to the first screen 1120 is a graphic image providing a function for selecting music for each CD. Furthermore, for example, the projector according to the present invention can recognize a specific CD selected by the user using the front camera or the rear camera of the projector 1100 .

And, when the projector 1100 recognizes that the user selects a specific CD, a graphic image including a cover page of the corresponding CD is automatically displayed on the second screen 1130 .

11, since the first screen 1120 and the second screen 1130 are maintained, it is possible to change and select a CD more quickly. In most conventional devices, there is a problem in that the screen displaying the entire CD list disappears when a corresponding CD is selected.

12 is a diagram for explaining a previous process for implementing FIG. 11 . Fig. 12 shows the process of implementing Fig. 11 in more detail.

12, the projector 1200 according to an embodiment of the present invention outputs graphic data for displaying a plurality of CDs on the first screen through the first projector. For example, it is graphic data including all of the album 1210 of a specific singer A, the album 1220 of the specific singer B, the album 1230 of the specific singer C, and the album 1240 of the specific singer D. However, it is also within the scope of the present invention to display a plurality of graphic data including a movie title rather than a music CD.

If the user's gesture or touch is recognized as selecting the specific CD through the camera of the projector, as shown in the right diagram of FIG. 12 , a list of songs included in the selected specific CD is output on the second screen.

13 is a diagram for explaining a process after implementing FIG. 11 . 13 illustrates a process implemented after FIG. 11 or FIG. 12 .

11 to 12 , when a specific song of a specific CD is selected on the second screen, the screen shown in FIG. 13 is switched.

Basically, the music of the selected song is output through the speaker of the projector or an external speaker added to an embodiment of the present invention. Meanwhile, the existing video data of the first screen and the second screen may be maintained, but it is necessary to provide a more aesthetic graphic image to the user.

Therefore, as shown in FIG. 13, it is additionally designed to output one continuous video data to the first screen and the second screen. One piece of video data output through the first screen and the second screen corresponds to a still image or a moving image pre-stored in the memory of the projector. Of course, it is also within the scope of the present invention to preset new video data through user editing.

Furthermore, it is also within the scope of the present invention to design a music file (audio data) to return to the initial screen shown in FIG. 12 or 11 by detecting an event in which the music file (audio data) ends while being played through the speaker.

14 is a diagram illustrating a projector outputting different video data on the same surface according to an embodiment of the present invention.

In the previous drawings, the case of outputting different video data to different surfaces (screens) has been described. Hereinafter, a method of using one surface (screen) will be described in FIG. 14 .

As shown in the left drawing of FIG. 14, two areas are divided and processed on one wall (screen). Video data received from an external source is output to the first area 1410 , and video data previously stored in the projector's memory is output to the second area 1420 .

More specifically, for example, by processing a preset graphic image (eg, inside a house, a view of a resort, a foreign city, etc.) in the second area 1420 , the user feels as if he or she is watching TV in another world. to give

Meanwhile, as shown in the right drawing of FIG. 14 , video data received from a first external source is output to a first region 1430 , and video data received from a second external source is output to a second region 1440 . It will be said that the output also falls within the scope of the present invention.

More specifically, for example, a broadcast screen received from a TV or PC is output to the first area 1430 , and an SNS execution screen received from the Internet or a mobile device is displayed in the second area 1440 .

FIG. 15 is a diagram for explaining a process in which a projector filters video data received from different sources according to a preset criterion according to another embodiment of the present invention.

The present invention can also be used for a slideshow or for a user to enjoy a photo album. This will be described with reference to FIG. 15 .

For example, the projector according to an embodiment of the present invention is connected to a mobile device or a cloud server. Specific video data (eg, a photo file) from the mobile device or the cloud server is output to the first area 1510 .

Unlike the prior art, an embodiment of the present invention is not limited to a simple slideshow function. That is, by analyzing the metadata of the video data output to the first area 1510 , GPS information of a shooting location, shooting direction information, time information, and the like are collected.

For example, when the video data output to the first area 1510 has first GPS information, first shooting direction information, first time information, etc., the projector according to an embodiment of the present invention connects a connected device or network. Similar video data having GPS, shooting direction information, time information, etc. within a preset range is extracted by searching.

More specifically, for example, a group of video data output to the first region 1510 and video data having GPS information within an error range is primarily filtered, and among the first filtered video data, it is within an error range. A group of video data having the shooting direction information is secondarily filtered, and finally, a group of video data having time information within an error range among the secondarily filtered video data is finally filtered.

Then, the final filtered group of video data is output to a second area 1520 , and the second area 1520 is located around the first area 1510 and is designed not to overlap.

Furthermore, according to another embodiment of the present invention, specific image data output to the first area 1510 is photographed using the camera of the projector, and color information of the photographed specific image data is analyzed. Then, the sub-image data corresponding to the analyzed color information is filtered once more.

By designing in this way, it is possible to filter and display sub image data more similar to and optimized to the main image data selected by the user.

Meanwhile, the right drawing of FIG. 15 may also be implemented by those skilled in the art with reference to the previous description of the left drawing of FIG. 15 .

However, the right drawing of FIG. 15 is technically different from the left drawing of FIG. 15 in that the first area 1530 is located at the lower right of the screen and the second area 1540 is wrapped around it. .

16 illustrates a first embodiment in which the projector separates and processes a first area and a second area on the same surface according to another exemplary embodiment of the present invention.

As briefly described in the left drawing of FIG. 14 , FIG. 16 shows a process of processing data by separating regions on the same plane.

The projector is designed to permanently output video data received from an external source to the first area 1610 and to output the video data previously stored in the memory to the second area 1620 .

In particular, by locating a graphic image for displaying a TV screen where the first area 1610 and the second area 1620 are adjacent to each other, there is a technical advantage that can enhance the immersion of the user.

17 illustrates a second embodiment in which the projector separates and processes a first area and a second area on the same surface according to another exemplary embodiment of the present invention.

FIG. 17 is an embodiment of a concept extending from FIG. 16 . It will be described on the assumption that the projector and the game machine according to an embodiment of the present invention are connected.

The video data received from the game machine is directly output to the first area 1710 . However, a virtual graphic image is output by analyzing the video data received from the game machine in a part of the second area 1720 . As shown in FIG. 17 , the image of the building provided by the game machine is enlarged and displayed on a part of the second area.

Two solutions are possible as a method of analyzing the video data received from the game machine. First, when an event that a building exists from the game machine is received, it can be detected. Second, when detailed event information is not received from the game machine, video data provided by the game machine is analyzed using the camera added to the projector according to an embodiment of the present invention. For example, when a specific pixel (gray) occupies more than a predetermined range of a predetermined area, it is considered that a building or a city is being displayed.

18 illustrates a third embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.

FIG. 18 is also an embodiment of the concept of extending FIG. 16 . It will be described on the assumption that the projector and the game machine according to an embodiment of the present invention are connected.

The video data received from the game machine is directly output to the first area 1810 . However, a virtual graphic image is output by analyzing the video data received from the game machine in a part of the second area 1820 . As shown in FIG. 18 , the image of the fire provided by the game machine is expanded and displayed on a part of the second area.

Two solutions are possible as a method of analyzing the video data received from the game machine. First, when an event that a fire occurs from the game machine is received, it can be detected. Second, when detailed event information is not received from the game machine, video data provided by the game machine is analyzed using the camera added to the projector according to an embodiment of the present invention. For example, when a specific pixel (red) occupies more than a predetermined range of a predetermined area, it is considered that a building or a city is being displayed.

19 shows a fourth embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.

As described above with reference to FIGS. 17 and 18 , video data received from an external source is output to the first regions 1910 and 1930 , and video data stored in memory is output to the second regions 1920 and 1940 . .

However, when the left drawing and the right drawing of FIG. 19 are compared, there is a difference in contrast. That is, the projector according to an embodiment of the present invention has a module for processing clock information.

Therefore, when the projector detects the current time as morning, as shown in the left diagram of FIG. 19 , graphic data of bright contrast is output to the second area 1920 . On the other hand, when the projector detects the current time as evening, as shown in the right diagram of FIG. 19 , graphic data of dark contrast is output to the second area 1940 . From the user's point of view, there is an effect that the user can feel the process of automatically changing the brightness of the screen in real time according to the change of time.

20 shows a fifth embodiment in which a projector according to another embodiment of the present invention separates and processes a first region and a second region on the same plane.

As described above with reference to FIGS. 17 and 18 , video data received from an external source is output to the first regions 2010 and 2030 , and video data stored in memory is output to the second regions 2020 and 2040 . .

However, when comparing the left drawing and the right drawing of FIG. 20 , different weather-related graphic images are overlaid. That is, the projector according to an embodiment of the present invention has a module for receiving and processing weather information of each country.

Accordingly, when the projector receives/detects weather information of a place where the projector is currently located or another area set by the user, as shown in the left drawing of FIG. in addition to the indication On the other hand, when the projector receives/detects other weather information, as shown in the right diagram of FIG. 20 , snow graphic data is output to the second area 2040 .

And, FIG. 21 is a flowchart illustrating in detail a method of controlling a projector according to an embodiment of the present invention. Meanwhile, those skilled in the art may supplementary interpretation of FIG. 21 below with reference to the description of the previous drawings.

The projector according to an embodiment of the present invention accesses at least one or more mobile devices connectable to the projector (S2101). The specific main image data stored in the memory of the mobile device is output to the first area (S2102).

Access to an external network connected wirelessly or wired (S2103). At least one or more sub-image data having metadata corresponding to the specific main image data output to the first area is collected (S2104). Then, the collected at least one or more sub-image data is output to the second area (S2105). For example, the first area and the second area are not the same.

The metadata includes, for example, at least one of GPS location information, direction information, or tag information input by a user.

According to another embodiment of the present invention, the step S2104 further includes the step of detecting only the metadata of the specific main image data and sub-image data in which an error range is within a preset standard.

The detecting may include primary filtering of sub-image data having GPS position information of the specific main image data and GPS position information within a first error range, and direction information of the primary filtered sub-image data. and secondarily filtering sub-image data having direction information within a second error range.

Although not shown in FIG. 21, according to another embodiment of the present invention, using the camera of the projector, photographing the specific image data output to the first area; The method further includes analyzing color information, and tertiarily filtering sub-image data corresponding to the analyzed color information.

The present invention described above can be implemented as computer-readable code on a medium in which a program is recorded. The computer-readable medium includes all types of recording devices in which data readable by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet) that is implemented in the form of. In addition, the computer may include the control unit 180 of the terminal. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

300: projector
310: first network communication module
320: second network communication module
330: controller
340: projection lens
350 : camera

Claims (15)

A method for controlling a projector having at least two or more data communication channels, the method comprising:
accessing at least one mobile device connectable to the projector;
receiving specific main image data stored in a memory of the mobile device from the mobile device;
outputting the received specific main image data to a first area, the first area being formed by a first projection lens included in the projector;
searching for an external network connected wirelessly or by wire;
By accessing the external network, metadata corresponding to the specific main image data output to the first area and metadata corresponding to at least one or more sub-image data are compared to correspond to the specific main image data from the external network collecting sub-image data that is within an error range of metadata; And
outputting the collected at least one or more sub-image data to a second area different from the first area, wherein the second area is formed by a second projection lens included in the projector method. According to claim 1,
The metadata is
A method of controlling a projector including at least one of GPS location information, direction information, or tag information input by a user. delete 3. The method of claim 2,
The collecting may further include detecting only sub-image data in which metadata of the specific main image data and an error range are within a preset standard,
The detecting step is
filtering the sub-image data having the GPS location information of the specific main image data and the GPS location information within a first error range primarily; And
Secondarily filtering sub-image data having direction information of the firstly filtered sub-image data and direction information within a second error range
A control method of the projector further comprising a. 5. The method of claim 4,
photographing specific image data being output to the first area by using the camera of the projector;
analyzing color information of the photographed specific image data; And
tertiarily filtering the sub-image data corresponding to the analyzed color information
A control method of the projector further comprising a. delete delete delete delete delete delete delete delete delete delete

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