Communications: electrical – Continuously variable indicating – With meter reading
Patent
1985-10-01
1987-06-23
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
358210, H04Q 906
Patent
active
046756728
ABSTRACT:
A control system is provided for selectively generating one of a plurality of control signals with each signal corresponding to a particular predesignated function of a system such as a video camera system. Such a video camera system includes a plurality of video cameras, each of which can be individually controlled. The output signals from the control system are generated in response to constant voltage input signals produced by an input circuit. The input circuit is coupled to a control circuit associated with a video camera through a transmission line over which different constant level voltage input signals are transmitted. The input circuit enables the operator to first select the particular camera to be controlled and then to transmit the input signals to the control circuit for the selected camera. The voltage level of the input signal which is transmitted 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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Lectrolarm Custom Systems, Inc.
Yusko Donald J.
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