| 摘要 |
PURPOSE:To prevent wasteful power consumption and to protect the burning of a monitor screen by setting a picture input output power supply section automatically only when picture information communication is discriminated and resetting the power supply section when the end of communication is detected. CONSTITUTION:When it is possible that a call is a call attended with picture communication as a terminal equipment after the arrival of a call, a frame synchronization establishment and capability information exchange sequence by a BAS(bit rate allocation signal) is tried. Based on the result, whether or not opposite communication for a video telephone/conference or the like attended with picture information is available is discriminated. When the possession of picture communication capability is discriminated, a picture input output power supply 11 is automatically set to activate a camera 6 and a display section 8. When the end of the communication call is detected, the picture input output power supply section 11 is reset to stop the camera 6 and the display section 8. On the other hand, in the case of a call from a non-picture communication system or it is discriminated that the communication is not provided with picture communication capability, the processing is proceeded without special control of the picture input output power supply section 11. |
