Electronic apparatus and controlling method thereof

Patent metadata

Field	Value
Publication number	US-11190837-B2
Application number	US-201916431886-A
Country	US
Kind code	B2
Filing date	Jun 5, 2019
Priority date	Jun 25, 2018
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

An electronic apparatus is provided. The electronic apparatus includes a memory configured to store computer executable instructions, an interface, a display, and a processor configured to, by executing the computer executable instructions control the display to display an image corresponding to a broadcasting content input through the interface, based on a mute interval being detected by analyzing an input signal, compare a signal before the mute interval with a signal after the mute interval and identify whether the signals before and after the mute interval are continuous, and identify an occurrence of a channel change event in which the broadcasting content is changed to another broadcasting content based on the identification.

First claim

What is claimed is:

1. An electronic apparatus, comprising:
a memory configured to store computer executable instructions;
a display; and
a processor configured to, by executing the computer executable instructions:
control the display to display an image corresponding to a content,
based on a mute interval being detected by analyzing an input signal corresponding to the content, identify whether a first signal of the input signal before the mute interval and a second signal of the input signal after the mute interval are continuous by comparing a feature of the first signal with a feature of the second signal, and
based on identifying that the first signal and the second signal are not continuous, identify an occurrence of a channel change event in which the content is changed to another content.

2. The electronic apparatus as claimed in claim 1 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the processor is further configured to perform an image capturing operation from a beginning of the mute interval, and, based on the occurrence of the channel change event being identified, analyze an image captured by the image capturing operation and obtain information on a changed channel.

3. The electronic apparatus as claimed in claim 2 , wherein the processor is further configured to identify a channel change message from the image captured by the image capturing operation, and obtain the information on the changed channel from the channel change message.

4. The electronic apparatus as claimed in claim 3 , wherein the processor is further configured to acquire texts included in the channel change message through optical character recognition (OCR) or scene text recognition (STR), and obtain the information on the changed channel based on the acquired texts.

5. The electronic apparatus as claimed in claim 2 , wherein the processor is further configured to identify the occurrence of the channel change event based on the audio signals before and after the mute interval being identified to be discontinuous and a channel change message being included in the image captured by the image capturing operation.

6. The electronic apparatus as claimed in claim 2 , wherein the processor is further configured to terminate the image capturing operation based on the audio signals before and after the mute interval being identified to be continuous.

7. The electronic apparatus as claimed in claim 1 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the processor is further configured to identify the occurrence of the channel change event based on a difference between a frequency pattern of the audio signal before the mute interval and a frequency pattern of the audio signal after the mute interval being greater than a preset threshold value.

8. The electronic apparatus as claimed in claim 1 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the processor is further configured to identify the occurrence of the channel change event based on a difference between a phase of the audio signal before the mute interval and a phase of the audio signal after the mute interval being greater than a preset threshold value.

9. The electronic apparatus as claimed in claim 1 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the processor is further configured to:
based on the audio signals before and after the mute interval being identified to be discontinuous, compare first fingerprint obtained from an image signal before the mute interval with second fingerprint obtained from an image signal after the mute interval, and
based on images before and after the mute interval being identified to be discontinuous according to comparison between the first fingerprint and the second fingerprint, identify the occurrence of the channel change event.

10. A method for controlling an electronic apparatus, the method comprising:
displaying an image corresponding to a content;
based on a mute interval being detected by analyzing an input signal corresponding to the content, comparing a signal of the input signal before the mute interval with a signal of the input signal after the mute interval, and identifying whether a first signal of the input signal before the mute interval and a second signal of the input signal after the mute interval are continuous by comparing a feature of the first signal with a feature of the second signal; and
based on identifying that the first signal and the second signal is not continuous, identifying an occurrence of a channel change event in which the content is changed to another content.

11. The method as claimed in claim 10 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the method further comprises:
performing an image capturing operation from a beginning of the mute interval; and
based on the occurrence of the channel change event being identified, analyzing an image captured by the image capturing operation and obtaining information on a changed channel.

12. The method as claimed in claim 11 , wherein the obtaining of the information on the changed channel comprises identifying a channel change message from the image captured by the image capturing operation, and obtaining the information on the changed channel from the channel change message.

13. The method as claimed in claim 12 , wherein the obtaining of the information on the changed channel comprises acquiring texts included in the channel change message through optical character recognition (OCR) and scene text recognition (STR), and obtaining the information on the changed channel based on the acquired texts.

14. The method as claimed in claim 11 , wherein the identifying of the occurrence of the channel change event comprises identifying the occurrence of the channel change event based on the audio signals before and after the mute interval being identified to be discontinuous, and a channel change message being included in the image captured by the image capturing operation.

15. The method as claimed in claim 11 , further comprising:
terminating the image capturing operation based on the audio signals before and after the mute interval being identified to be continuous.

16. The method as claimed in claim 10 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the identifying of the occurrence of the channel change event comprises identifying the occurrence of the channel change event based on a difference between a frequency pattern of the audio signal before the mute interval and a frequency pattern of the audio signal after the mute interval being greater than a preset threshold value.

17. The method as claimed in claim 10 , wherein the first signal before the mute interval includes an audio signal, and the second signal after the mute interval includes an audio signal, and
wherein the identifying of the occurrence of the channel change event comprises identifying the occurrence of the channel change event based on a difference between a phase of the a

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Jiwoong
• Choi Hyunsoo
• Kim Minsoo
• Kim Sungjin
• Kim Younguk
• Kim Ilkoo
• Kim Hyunhan

Classifications

• H04N21/44222 Primary

  Analytics of user selections, e.g. selection of programmes 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 title

• H04N21/4383

  Accessing a communication channel · CPC title

• H04N21/4384

  involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency · CPC title

• H04N21/4394 Primary

  involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams (arrangements characterised by components specially adapted for monitoring, identification or recognition of audio in broadcast systems H04H60/58) · CPC title

• H04N21/44008

  involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream (arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59) · CPC title