Display apparatus and channel map managing method thereof

• US 9,525,910 B2
• Filed: 12/30/2014
• Issued: 12/20/2016
• Est. Priority Date: 12/30/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ahn, Young-chun, Lee, Sang-wook, Kim, Chang-won
• Primary Examiner(s): Flynn, Nathan
• Assistant Examiner(s): Castro, Alfonso
• Application Number:
  US14/586,010
• Publication Number:
  US 20150189372A1
• Time in Patent Office: 721 Days
• Field of Search: 725/56
• US Class Current: 1/1
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4383 Accessing a communication channel
• CPC Class Codes: H04N 21/44222 Analytics of user selections, e.g. selection of programs or purchase activity monitoring of user selections in data processing systems G06F11/34; arrangements for monitoring the user's behaviour or opinions in broadcast systems H04H60/33
• CPC Class Codes: H04N 21/4524 involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; systems specially adapted for using geographical information in broadcast systems H04H60/70; protocols in which the network application is adapted for the location of the user terminal in communication control or processing H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/4586 Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally deployment, distribution, installation, update of software G06F8/65; error detection or correction of the data by redundancy during software upgrading G06F11/1433; arrangements for updating broadcast information or broadcast-related information H04H60/25
• CPC Class Codes: H04N 21/4667 Processing of monitored end-user data, e.g. trend analysis based on the log file of viewer selections
• CPC Class Codes: H04N 21/4823 using a channel name

Abstract

A display apparatus includes a storage configured to store a recommendation channel map including a plurality of channel numbers and channel information mapped to channel numbers; an input unit for inputting a user command and selecting a channel; a contents receiver configured to receive contents through a channel corresponding to the user command; a display configured to display the contents; and a controller configured to compare the stored channel information mapped to the selected channel number in the recommendation channel map and channel information of the received contents, and to update the recommendation channel map according to a result of comparison.

Claims

1. A display apparatus comprising:

a communicator configured to receive a recommendation channel map comprising channel numbers and channel information mapped to channel numbers from a server device;

a memory configured to store the recommendation channel map;

a receiver configured to receive a user command corresponding to a respective channel number;

a network interface configured to receive contents through a channel corresponding to the user command;

a display configured to display the contents; and

a processor configured to compare the stored channel information mapped to the respective channel number in the stored recommendation channel map and channel information of the received contents, and to update the recommendation channel map according to a result of comparison,

wherein the server device is different than a contents providing server which provides the contents through a broadcast receiving device,

wherein the network interface is further configured to receive the contents and the channel information of the contents from the broadcast receiving device, and

wherein the processor is further configured to compare the channel information received from the broadcast receiving device with the stored channel information included in the stored recommendation channel map and to control the communicator to transmit the updated recommendation channel map to the server device, in response to the recommendation channel map being updated.

2. The display apparatus according to claim 1, wherein the processor is further configured to recognize a text being displayed on a screen of the display to overlap the contents for at least a predetermined time, and detect the channel information of the received contents from the text.

3. The display apparatus according to claim 1, wherein the processor is further configured to control the display to display the recommendation channel map comprising only the channel information of the contents that may be displayed by the display.

4. The display apparatus according to claim 2, wherein the processor implements:

a calculator configured to calculate a brightness average value of an entirety of a subject area that includes the text, divide the subject area into a plurality of partial areas, calculate a maximum brightness value and a minimum brightness value in each of the plurality of partial areas, and calculate an average background brightness value based on the calculated maximum brightness values and the calculated minimum brightness values;

a text brightness determiner configured to determine a brightness of the text based on the calculated average background brightness value; and

a text extractor configured to divide the subject area into the text and a background and to extract the text, according to the determined brightness of the text.

5. The display apparatus according to claim 4, wherein the calculator is further configured to calculate a first average value of the brightness values that are greater than a threshold value and a second average value of the brightness values that are smaller than the threshold value, for the entirety of the subject area, and

the text brightness determiner is further configured to compare a first value that is a difference between the first average value and the average background brightness value and a second value that is a difference between the second average value and the average background brightness value, and to determine whether the text is a bright text that is brighter than the background or a dark text that is darker than the background according to a result of comparison.

6. The display apparatus according to claim 5, wherein the text extractor is further configured to extract as the text a pixel having a brightness value greater than a first text value in the subject area, in response to the text being determined as the bright text, and to extract as the text a pixel having a brightness value smaller than a second text value in the subject area, in response to the text being determined as the dark text, and

the first text value is greater than the second text value.

7. The display apparatus according to claim 6, wherein the text extractor is further configured to determine the first text value and the second text value according to following equations, respectively:

8. A recommendation channel map managing method comprising:

receiving a recommendation channel map comprising channel numbers and channel information mapped to channel numbers;

storing a recommendation channel map;

receiving a user command corresponding to a respective channel number;

receiving contents through a channel corresponding to the user command;

displaying the contents;

comparing the stored channel information mapped to the respective channel number in the stored recommendation channel map and channel information of the received contents; and

updating the recommendation channel map according to a result of comparison,

wherein the receiving contents further comprises receiving the channel information from a broadcast receiving device that provides the contents,

wherein updating the recommendation channel map further comprises comparing the channel information received from the broadcast receiving device with the stored channel information included in the stored recommendation channel map, and

wherein the method further comprises transmitting the updated recommendation channel map to a server device, in response to the recommendation channel map being updated.

9. The method according to claim 8, further comprising:

recognizing a text being displayed on a screen of the display so that the text overlaps the contents for at least a predetermined time; and

detecting the channel information of the received contents from the text.

10. The method according to claim 8, further comprising displaying the recommendation channel map comprising only the channel information of the contents that may be displayed by the display.

11. The method according to claim 9, wherein the detecting the channel information comprises:

calculating a brightness average of an entirety of a subject area that includes the text;

dividing the subject area into a plurality of partial areas;

calculating a maximum brightness value and a minimum brightness value for each of the plurality of partial areas;

calculating an average background brightness value based on the calculated maximum brightness values and the calculated minimum brightness values;

determining a brightness of the text based on the calculated average background brightness value;

dividing the subject area into the text and a background; and

extracting the text, according to the determined brightness of the text.

12. The method according to claim 11, wherein the determining the brightness of the text comprises:

calculating a first average value of brightness values that are greater than a predetermined value, for the entirety of the subject area;

calculating a second average value of brightness values that are smaller than the predetermined value, for the entirety of the subject area;

comparing a first value that is a difference between the first average value and the average background brightness value and a second value that is a difference between the second average value and the average background brightness value; and

determining whether the text is a bright text that is brighter than the background or a dark text that is darker than the background according to a result of comparison.

13. The method according to claim 12, wherein the extracting the text comprises:

extracting, as the text, a pixel having a brightness value greater than a first text value in the subject area in response to the text being determined as the bright text; and

extracting, as the text, a pixel having a brightness value smaller than a second text value in the subject area in response to the text being determined as the dark text, and

wherein the first text value is greater than the second text value.

14. The method according to claim 13, wherein the extracting the text comprises determining the first text value and the second text value according to following equations, respectively:

15. A display apparatus comprising:

a communicator configured to receive a recommendation channel map comprising channel numbers and channel information mapped to channel numbers from a server;

a memory configured to store the recommendation channel map;

a display configured to display the contents;

a server configured to transmit the recommendation channel map; and

a processor configured to update the recommendation channel map received from the server, by;

receiving an input of a respective channel number,

detecting second channel information of the content displayed in response to the input of the respective channel number,

comparing the first channel information mapped to the respective channel number in the stored recommendation channel map with the second channel information,

determining a mismatch between the first channel information and the second channel information, and

updating the recommendation channel map to correspond with the second channel information,

wherein the processor is further configured to control the communicator to transmit the updated recommendation channel map to the server.

16. The display apparatus of claim 15, wherein the processor is further configured to update the recommendation channel map to contain only the channel numbers mapped to the second channel information authorized to be reproduced by the display apparatus.

17. The display apparatus of claim 15, wherein the processor is further configured to detect the second channel information of the displayed content by detecting a text string being displayed as an overlay on the displayed content corresponding to a channel through which the content is received.