A video receiver apparatus, for receiving video from a video transmitter apparatus, comprises: a memory portion for memorizing receiver apparatus information of the video receiver apparatus; and a transmitter/receiver portion for receiving a request for obtaining the receiver apparatus information transmitted from the video transmitter apparatus, and also for transmitting the receiver apparatus information memorized in the memory portion responding to the obtaining request, and wherein, further within the memory portion is memorized history information, changing depending on alternation of the receiver apparatus information, and wherein the receiver portion is able to receive the history information, which the video transmitter apparatus holds therein, as well as, the obtaining request from the video transmitter, and when the received history information from the video transmitter apparatus and the history information, which the video transmitter apparatus holds therein, are inconsistent with each other, then the receiver apparatus information memorized in the memory portion is transmitted to the video transmitter apparatus.

The present disclosure relates to an image display device and a method of operating the same. The image display device according to an embodiment of the present disclosure includes: a display configured to display a pointer corresponding to a remote controller; an external device interface including at least one communication module and configured to perform short-range communication; and a controller, wherein the controller: receives, from the remote controller, an input signal including movement data of the remote controller through the external device interface; monitors a connection status with the remote controller based on the received input signal; if the connection status is good, calculates coordinates of the pointer based on the movement data included in the input signal; if the connection status is bad, processes the movement data included in the input signal, and then calculates coordinates of the pointer based on the processed data; and displays the pointer on the display based on the calculated coordinates of the pointer. Various other embodiments are also possible.

A method for controlling an electronic apparatus connected to a source device and a sound output device. A method for controlling an electronic apparatus may include steps of: receiving content of a source device and providing audio data of the content to a sound output device; when the audio data of the content is not output in the sound output device, diagnose, on the basis of an audio mode of the electronic apparatus, an output error of at least one from among the source device and the sound output device; perform, on the basis of a result of the diagnosis, reconnection to at least one from among the source device and the sound output device; and when the audio data of the content is not output in the second output device even after the reconnection, change the audio mode.

Methods, systems, and devices for guiding a subject back within the recognizable visual range of a multimedia system are described. According to one of the described methods, when it is determined that the target has left the recognizable range of the multimedia system, sensor information is acquired from a portable electronic device (or controller) the user has been using to control the multimedia system, and the acquired sensor information is used to determine where the user is, relative to the recognizable range. In one example, the user is asked to make a gesture with the portable electronic device, and the sensor information concerning that gesture is used to determine the user's relative location. In another example, the sensor information recorded at the time the user left the recognizable range is used to determine the user's relative location.

A source device that provides contents to a sink device and a communication method thereof are provided. The communication method of the source device includes: transmitting a communication signal including a High-bandwidth Digital Content Protection (HDCP) signal to the sink device; determining a communication status with the sink device using an HDCP communication result received from the sink device; and adjusting the communication signal according to the determined communication status. Therefore, the communication method can provide a user with optimized contents.

Emotional/cognitive state presentation is described. When two or more users, each using a device configured to present emotional/cognitive state data, are in proximity to one another, each device communicates an emotional/cognitive state of the user of the device to another device. Upon receiving data indicating an emotional/cognitive state of another user, an indication of the emotional/cognitive state of the user is presented.

A video conferencing system is disclosed. The video conferencing system includes a transmitter and a receiver. When the transmitter is coupled to a port of an information processing device, the transmitter communicates with the information processing device to determine whether the port of the information processing device has video output function. When the above determination result is no, the transmitter emits a wireless signal. The transmitter is coupled to a display device and used to receive the wireless signal and provide a default warning message to the display device.

A signal is protected against an attack by an enhancement process that checks the conformity of an actual state of the signal with respect to an expected state. A protective action is exercised on the signal if the actual state of the signal is not in conformity with the expected state, so as to neutralize or nullify said attack.

Provided are a computer processing device and a method for providing coordinate compensation and determining errors by using user profile information based on force inputs. The computer processing device includes an information collector unit and an analysis unit. The information collector unit collects information on various inputs entered on a key of a remote control. From among the inputs entered on a same key, the analysis unit compensates an input that corresponds to a level lying in-between a first level and a second level, the first level corresponding to a normal input and the second level corresponding to a force input, in such a way that the input is compensated to be a normal input or a force input. Here, the force input is an input entered with a greater pressure or a larger area than for the normal input on the key of the remote control.

A content output device identifies a set of content including both high definition content and standard definition content. The content output device determines whether an associated presentation device is capable of presenting high definition content. The content output device then filters the set of content accordingly responsive to determining whether the presentation device is capable of presenting high definition content.