Electronic apparatus and control method thererof for handling a CEC malfunction

Patent metadata

Field	Value
Publication number	US-12554601-B2
Application number	US-202318397764-A
Country	US
Kind code	B2
Filing date	Dec 27, 2023
Priority date	Feb 15, 2023
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

An electronic apparatus includes a display; an input interface including a first high-speed multimedia interface (HDMI) port configured to connect to a first source device, and a second HDMI port configured to connect to a second source device; and at least one processor operatively connected with the display and the input interface, wherein a first switching device is provided in a first consumer electronic control (CEC) line corresponding to the first HDMI port, and a second switching device is provided in a second CEC line corresponding to the second HDMI port, and wherein the at least one processor is configured to: control, based on a malfunction associated with a CEC function being identified from the first source device or the second source device, the display to display a user interface (UI) for turning off the CEC function, and turn off the CEC function by separately controlling at least one of the first switching device or the second switching device based on a user command received through the UI.

First claim

What is claimed is:

1 . An electronic apparatus comprising:
a display; an input interface comprising a first high-speed multimedia interface (HDMI) port configured to connect to a first source device, and a second HDMI port configured to connect to a second source device; and at least one processor operatively connected with the display and the input interface, wherein a first switching device is provided in a first consumer electronic control (CEC) line corresponding to the first HDMI port, and a second switching device is provided in a second CEC line corresponding to the second HDMI port, and wherein the at least one processor is configured to:
control, based on a malfunction of a CEC function being identified from the first source device or the second source device, the display to display a user interface (UI) for turning off the CEC function, and
turn off the CEC function by separately controlling at least one of the first switching device or the second switching device based on a user command received through the UI, while maintaining HDMI connections to the first source device and the second source device.

2 . The electronic apparatus of claim 1 , wherein a malfunction HDMI port from among the first HDMI port and the second HDMI port is identified with the malfunction of the CEC function, and
the UI comprises at least one of identification information of the malfunction HDMI port, information guiding to turn off of the CEC function of the malfunction HDMI port, or a menu for turning off the CEC function corresponding to the malfunction HDMI port.

3 . The electronic apparatus of claim 1 , wherein each of the first switching device and the second switching device is configured to operate to be turned on or turned off according to whether power is applied,
the at least one processor comprises a general-purpose input/output (GPIO), a first pin of the GPIO is configured to be connected with the first switching device and a second pin of the GPIO is configured to be connected with the second switching device, and the at least one processor is further configured to turn on or turn off at least one of the first switching device or the second switching device by controlling whether the power is to be applied to at least one of the first switching device or the second switching device using the GPIO.

4 . The electronic apparatus of claim 1 , wherein each of the first switching device and the second switching device is configured to operate to be turned on or turned off according to whether power is applied, and
the at least one processor is further configured to:
identify at least one malfunction HDMI port with the malfunction of the CEC function generated from among the first HDMI port and the second HDMI port by sequentially controlling the power applied to the first switching device and the second switching device according to the user command, and
control the display to display the UI for turning off the CEC function corresponding to the at least one malfunction HDMI port.

5 . The electronic apparatus of claim 4 , wherein the at least one processor is further configured to:
receive only a first CEC response signal corresponding to the first HDMI port by not applying the power to the first switching device according to the user command and maintaining a close state and applying the power to the second switching device and changing to an open state, identify whether the malfunction of the CEC function is generated from the first HDMI port based on the first CEC response signal, receive only a second CEC response signal corresponding to the second HDMI port by not applying the power to the second switching device and maintaining the close state and applying the power to the first switching device and changing to the open state, and identify whether the malfunction of the CEC function is generated from the second HDMI port based on the second CEC response signal.

6 . The electronic apparatus of claim 1 , wherein the at least one processor is further configured to:
identify whether the malfunction of the CEC function is generated from the first HDMI port based on a first CEC address comprised in a first CEC response signal corresponding to the first HDMI port, whether the first CEC response signal is received, or whether the first CEC response signal is normal, and identify whether the malfunction of the CEC function is generated from the second HDMI port based on a second CEC address comprised in a second CEC response signal corresponding to the second HDMI port, whether the second CEC response signal is received, or whether the second CEC response signal is normal.

7 . The electronic apparatus of claim 1 , wherein the at least one processor is further configured to:
identify, based on a same source device being recognized as connected to the first HDMI port and the second HDMI port based on CEC response signals received from the first HDMI port and the second HDMI port, whether the malfunction of the CEC function is generated by verifying CEC addresses of the first HDMI port and the second HDMI port, and control, based on the malfunction of the CEC function being identified from any one of the first HDMI port and the second HDMI port, the display to display the UI for turning off the CEC function corresponding to a malfunction HDMI port identified with the malfunction.

8 . The electronic apparatus of claim 1 , wherein the at least one processor is further configured to:
transmit, based on a self-diagnosis function being executed, a command of a specific type through the first CEC line and the second CEC line, identify at least one malfunction HDMI port with the malfunction of the CEC function generated from among the first HDMI port and the second HDMI port based on a first CEC response signal received through the first HDMI port and a second CEC response signal received through the second HDMI port by sequentially controlling power applied to the first switching device and the second switching device, and control the display to turn off the CEC function of the at least one malfunction HDMI port or display the UI for turning off the CEC function of the at least one malfunction HDMI port.

9 . The electronic apparatus of claim 1 , wherein the at least one processor is further configured to:
identify, based on a connected device diagnosis function being executed, whether a source device connected to one of the first HDMI port and the second HDMI port is a pre-defined malfunctioning device, and control, based on the source device connected to at least one malfunction HDMI port from among the first HDMI port and the second HDMI port being identified as the pre-defined malfunctioning device, the display to turn off the CEC function corresponding to the at least one malfunction HDMI port or display the UI for turning off the CEC function of the at least one malfunction HDMI port.

10 . A method of controlling an electronic apparatus comprising a first high-speed multimedia interface (HDMI) port configured to connect to a first source device and a second HDMI port configured to connect to a second source device, in which a first switching device is provided in a first consumer electronic control (CEC) line corresponding to the first HDMI port, and a second switching device is provided in a second CEC line corresponding to the second HDMI port, the method comprising:
displaying, based on a malfunction of a CEC function being identified from at least one of the first source device or the second source device, a user interface (UI) for turning off the CEC function; and turning off the CEC function by separately controlling at least one of the first switching device or the second

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Sangeun
• Kim Sumin
• Lee Dongjun

Classifications

• H04N21/43635

  HDMI · CPC title

• H04N21/431

  Generation of visual interfaces {for content selection or interaction}; Content or additional data rendering · CPC title

• H04N21/4622

  Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet (web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859) · CPC title

• H04N21/485

  End-user interface for client configuration · CPC title

• G06F13/4022 Primary

  using switching circuits, e.g. switching matrix, connection or expansion network (G06F13/4009 takes precedence) · CPC title