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Display device

  • US 10,448,107 B2
  • Filed: 06/09/2017
  • Issued: 10/15/2019
  • Est. Priority Date: 11/11/2016
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a memory;

    a display unit;

    a user interface unit to communicate with a remote controller;

    an external device interface unit to receive an image signal from a set-top box connected to the display device; and

    a control unit to;

    receive a request for changing a broadcast channel from the remote controller,recognize the broadcast channel change according to the request,display a broadcast image of the changed broadcast channel based on the image signal received from the set-top box,capture the broadcast image from a time point when the broadcast channel is changed,determine whether the captured broadcast image includes a main banner in a same position as a previous broadcast channel,recognize a channel number of the broadcast image by using the main banner included in the captured broadcast image when the main banner is located in the same position as a position of a main banner of the previous broadcast channel, anddisplay, on the display unit, broadcasting information related to the recognized channel number,determine whether a version of the set-top box connected to the display device has been changed, acquire position information of the channel number corresponding to the version of the set-top box from the memory if the version of the set-top box has been changed, andrecognize the channel number using the position information of the channel number.

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