Image output device, mobile terminal, and method for controlling a plurality of image output devices

Patent metadata

Field	Value
Publication number	US-10365879-B2
Application number	US-201515522750-A
Country	US
Kind code	B2
Filing date	Mar 3, 2015
Priority date	Nov 5, 2014
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

The present invention relates to an image output device having an image quality adjustment function. A method for controlling a mobile terminal so as to control the image quality of a plurality of image output devices according to an embodiment of the present invention comprises the steps of: generating a preview image on the basis of images corresponding to the plurality of image output devices, received through a camera, and extracting image quality information of the plurality of image output devices using the images corresponding to the plurality of image output devices, included in the preview image; and transmitting the extracted image quality information or image quality correction data corresponding to the image quality information to at least one image output device, the image quality of which is to be adjusted, among the plurality of image output devices.

First claim

What is claimed is:

1. A method for controlling a mobile terminal to control a plurality of image output devices, the method comprising:
requesting each of the plurality of image output devices to output different identification information;
recognizing an arrangement of the plurality of image output devices using images corresponding to the different identification information included in a preview image received through a camera while the different identification information is output on each of the plurality of image output devices; and
controlling the plurality of image output devices using images corresponding to the plurality of image output devices included in the preview image, when the arrangement of the plurality of image output devices is recognized,
wherein the plurality of image output devices includes a first image output device and a second image output device, the first image output device is arranged closer to the mobile terminal than the second image output device, and the first and the second image output devices are set to output sounds at a same output volume level,
the method further comprising controlling the plurality of image output devices to output sounds at different output volume levels when the plurality of image output devices are arranged at different distances from the mobile terminal,
wherein controlling the plurality of image output devices to output sounds at different output volume levels comprises increasing the output volume of the second image output device and decreasing the output volume of the first image output device when a volume of output sound from the first image output device received at the mobile terminal is higher than a volume of output sound from the second image output device received at the mobile terminal.

2. The method of claim 1 , wherein the recognizing the arrangement of the plurality of image output devices comprises:
identifying a number and positions of the plurality of image output devices using the images corresponding to the different identification information included in the preview image;
requesting each of the plurality of image output devices to output screen information including a preset grid pattern; and
recognizing a relative arrangement of the plurality of image output devices using the images corresponding to the screen information included in the preview image when the screen information is output on each of the plurality of image output devices.

3. The method of claim 2 , wherein the relative arrangement of the plurality of image output devices is recognized based on a size of the grid pattern included in the image corresponding to each of the plurality of image output devices included in the preview image.

4. The method of claim 3 , wherein the recognizing the relative arrangement of the plurality of image output devices is configured to recognize that a first image output device is arranged at a closer position to the mobile terminal than a second image output device different from the first image output device, when a size of the grid pattern included in an image corresponding to the first image output device, among the grid patterns included in the images corresponding to the plurality of image output devices included in the preview image, is greater than a size of the grid pattern included in an image corresponding to the second output device.

5. The method of claim 2 , wherein the recognizing the arrangement of the plurality of image output devices further comprises determining postures of the plurality of image output devices using the images corresponding to the screen information included in the preview image.

6. The method of claim 2 , wherein the identification information is outputtable together with the screen information including the preset grid pattern.

7. The method of claim 1 , wherein the controlling is configured to control the plurality of image output devices to output one content thereon in a dividing manner based on the arrangement of the plurality of image output devices.

8. The method of claim 7 , wherein the controlling is configured to decide portions of the one content output on each of the image output devices based on the images corresponding to the plurality of image output devices included in the preview image.

9. The method of claim 7 , wherein the plurality of image output devices output different portions of the one content, and
wherein the portions output on each of the plurality of image output devices differ according to the arrangement of the plurality of image output devices.

10. The method of claim 9 , wherein one of the plurality of image output devices outputs a first portion of the one content based on a first position when the one image output device is arranged at the first position, and
wherein the one image output device outputs a second portion of the one content, different from the first portion, based on a second position when the one image output device is arranged at the second position different from the first position.

11. The method of claim 7 , wherein sizes of the portions of the one content, output on each of the plurality of image output devices, differ according to the relative arrangement of the plurality of image output devices, when the plurality of image output devices have the same screen size.

12. The method of claim 11 , wherein the size of the portion output on the first image output device of the plurality of image output devices is greater than the size of the portion output on the second image output device, when the first image output device is arranged closer to the mobile terminal than the second image output device.

13. The method of claim 1 , wherein the controlling is configured to synchronize the plurality of image output devices based on an image output device corresponding to one of the images corresponding to the plurality of image output devices included in the preview image, when a touch is applied to the one image.

14. The method of claim 13 , wherein a synchronized category includes at least one of streaming, image quality and volume.

15. A mobile terminal for controlling a plurality of image output devices, the terminal comprising:
a camera;
a display unit configured to output a preview image received through the camera; and
a controller configured to recognize an arrangement of the plurality of image output devices using images corresponding to different identification information included in the preview image while the different identification information is output on each of the plurality of image output devices, and control the plurality of image output devices using images corresponding to the plurality of image output devices included in the preview image,
wherein the plurality of image output devices includes a first image output device and a second image output device, the first image output device is arranged closer to the mobile terminal than the second image output device, and the first and the second image output devices are set to output sounds at a same output volume level, and
wherein the controller is further configured to:
control the plurality of image output devices to output sounds at different output volume levels when the plurality of image output devices are arranged at different distances from the mobile terminal; and
wherein controlling the plurality of image output devices to output sounds at different output volume levels comprises increasing the output volume of the second image output device and decreasing the output volume of the first image output device when a volume of output sound from the first image output d

Assignees

• Lg Electronics Inc

Inventors

• Lee Jihye
• Byeon Jinyeong
• Kim Seonghwan
• Park Youngsoo
• Jung Jieun
• Kim Aryun
• Lee Bongsu
• Park Chala

Classifications

• H04N2201/3269

  of machine readable codes or marks, e.g. bar codes or glyphs · CPC title

• H04N21/4402

  involving reformatting operations of video signals for household redistribution, storage or real-time display {(details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764)} · CPC title

• H04N21/434

  Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream {(demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00)} · CPC title

• G06F16/9554

  by using bar codes · CPC title

• G06K7/1095

  the scanner comprising adaptations for scanning a record carrier that is displayed on a display-screen or the like · CPC title