Abstract: A connector adapted to detect a connective state is disposed in a monitor having a video input terminal and display. The detector detects the presence of an external video output connected to the video input terminal. When a video input it detected, a power controller enables the video display; however, if no connection is detected to the monitor input, power to the display is disabled. According to one embodiment the detector determines the connective state based on the presence of a video signal input from the video input terminal. In yet another embodiment the control signal terminal is provided for connection with a video camera. In addition, video operation switch and output for controlling the video camera are also provided. Finally, the monitor may include an infrared controller for sending control signals to control the operation of the video camera.

Abstract: A video camera connects a monitor with a camera body. A first multi-connector is connected to the camera body and includes a video output terminal for outputting a video signal to an external apparatus and a recognition output terminal for outputting a recognition signal in response to a ON/OFF state of the camera power. A second multi-connector is connected with the monitor, for connecting to the first multi-connector. The second multi-connector includes a video input terminal for inputting the video signal and a recognition input terminal for inputting the recognition signal from said camera body. A display is also provided for displaying an image based on the video signal inputted from the video input terminal of the second multi-connector and a power controller controls a monitor power to be ON/OFF based on the recognition signal inputted from the second terminal of the second multi-connector.

Abstract: Functions of a videocamera are extended by connecting accessories. A camera body recognizes which accessories are connected based on a recognition information designating sort of accessories inputted from an accessories recognition terminal of multi-connector when accessories are connected to the camera body through the multi-connector. The camera mode selects automatically an operation mode to suit with accessories connected among multiple operation modes including a camera mode and VTR mode. An operation of changing the operation mode by an operation switch on the side of the camera body will not be required.