Patent ID: 8869214

Claim:
A device control apparatus, comprising: a transmission signal input/output unit for receiving a signal including a control signal for controlling an internal state from another device connected to the transmission signal input/output unit or for outputting the signal to the another device; an application acquisition unit for properly accessing an application server over a network and properly acquiring an application from the application server; a display control unit for controlling, on a first region of a display screen, a display based on the application acquired from the application server by the application acquisition unit; and an operation control unit for executing the application acquired from the application server by the application acquisition unit to control an operation of the another device connected to the transmission signal input/output unit, wherein the operation control unit permits the another device to transmit its status upon initiation of execution of the application acquired by the application acquisition unit, and prohibits the another device from transmitting the status upon termination of the application execution, and wherein the another device connected to the transmission signal input/output unit is an audio amplification device, the application acquired from the application server is configured to be executed in a state in which a video is displayed on a second region of the display screen while the display based on the application acquired from the application server is displayed on the first region of the display screen, and the video is associated with an audio input source of the audio amplification device, and wherein the operation control unit executes the application acquired from the application server by the application acquisition unit to change a sound field of the audio amplification device.