Video camera monitoring system

Facsimile and static presentation processing – Facsimile – Recording apparatus

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Details

H04N 524

Patent

active

043694675

ABSTRACT:
A video camera monitoring system includes a plurality of video cameras and a control system provided for selecting one of the cameras to be controlled and causing a plurality of control signals to control various functions of the camera with each signal corresponding to a particular predesignated function. The video cameras of the system can each be individually controlled or controlled simultaneously from a single set of controls at an input console. A separate control circuit is associated with each video camera and is arranged at the location of the camera. Both the control circuit and the camera are provided with power from a source located at the camera location. The output signals from each control circuit are generated in response to constant voltage input signals produced on an input line of the control circuit. An input console is coupled to the input line of the control circuit associated with a video camera through a transmission line over which different constant level voltage input signals are established. The input circuit enables the operator to first select the particular camera to be controlled and then to vary the input signals supplied to the control circuit for the selected camera. The voltage level of the input signal which is supplied is selected from among a plurality of predetermined levels in dependence upon the control function to be achieved. The control circuit, in turn, receives the input signals and in response thereto will activate one of a plurality of switches for providing a corresponding output signal which serves to enable an appropriate camera function.

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