Abstract: A camera system according to an embodiment includes a camera device, a control device, and an application server. The camera device, which includes a camera module and a power line communication (PLC) camera adaptation module, captures and provides audio/video information. The camera device modulates the audio/video information, and provides the modulated information. The camera device also demodulates the modulated signal transferred from a power line to obtain a control signal, and adjusts camera parameters according to the control signal. The control device is connected to the PLC camera adaptation module via the power line. The control device demodulates a received modulated signal of the audio/video information, and provides the demodulated signal. According to a received control indication information, the control device generates a control signal, modulates the control signal, and controls the camera module.

Abstract: The present invention discloses a method for processing the video telephone calling based on the mobile communication network.

Abstract: A camera system according to an embodiment includes a camera device, a control device, and an application server. The camera device, which includes a camera module and a power line communication (PLC) camera adaptation module, captures and provides audio/video information. The camera device modulates the audio/video information, and provides the modulated information. The camera device also demodulates the modulated signal transferred from a power line to obtain a control signal, and adjusts camera parameters according to the control signal. The control device connected to the PLC camera adaptation module via the power line. The control device demodulates a received modulated signal of the audio/video information, and provides the demodulated signal. According to a received control indication information, the control device generates a control signal, modulates the control signal, and controls the camera module.

Abstract: The present invention discloses a method for processing the video telephone calling based on the mobile communication network.

Abstract: The present invention relates to a method for processing the video telephone call failure based on the mobile communication network, which comprises the following steps: when a video telephone call initiated by a calling terminal has failed, the mobile communication network side returns a call failure message which contains a reason value of the call failure and a disconnecting signaling to said calling terminal in accordance with the reason of the call failure; after said calling terminal receives said call failure message, it queries and extracts said call failure prompt information data in accordance with said reason value and broadcasts the call failure prompt information locally.