Abstract: An apparatus for a closed circuit television network having a plurality of video cameras producing video signals, a plurality of video display monitors and a video switcher apparatus coupled therebetween, comprising control apparatus coupled to the video switcher apparatus for controlling which video signals are displayed on each of the plurality of video display monitors. Also provided are graphics user interface apparatus coupled to the control apparatus for permitting a user to operate the control apparatus, thereby permitting the user to control which video signals are displayed on the plurality of video display monitors.

Abstract: A broadband (RF) system using frequency agile demodulators or frequency agile modulators for coupling video cameras at remote locations to one or more video monitors at a central location. In a first embodiment, video cameras at remote locations are provided with respective modulators for coupling the outputs of the video cameras to a broadband coaxial or fiber-optic cable which couples all of the camera outputs to the input of a frequency agile demodulator at the central location. The output of the demodulator is coupled to one or more video monitors for display of the video signals from the remote cameras. The demodulator at the central location may be set to any camera channel manually or under processor control. Each video monitor can then view the video signals from any remote video camera by selecting the appropriate channel at the demodulator at the central location.

Abstract: Apparatus and a method for detecting the actuation of any of a plurality of security sensors at respective zones remotely spaced from a central control location and for displaying information representing the operating status of a zone whose sensor has been actuated. The apparatus comprises a control unit having a central processor and an input coupled to a transponder bus to which a plurality of remote transponders are connected, each transponder having a number of security sensors associated therewith. The control unit further includes a visual display having a first portion for displaying sequentially the identifying numbers assigned to the remote zones and a second portion for displaying the operating status of a zone whose identifying number is shown on the first portion of visual display. When a sensor is actuated at one of the zones, the central processor of the control unit causes the identifying number of the zone and the status of the zone to be displayed simultaneously.

Abstract: Apparatus for moving a mirror about a horizontal axis and a vertical axis so that the mirror can scan in all directions and up and down to receive light rays representing images of distant objects and to direct the light rays to a video camera adjacent thereto. The video camera is in a fixed position in a housing and faces upwardly in optical alignment with the center of the mirror. A pair of vertically spaced ring gears are mounted in the housing for rotation relative to the video camera, and a pair of drive motors are coupled with respective ring gears for rotating the same in opposed directions relative to each other. One of the ring gears has a pair of posts which extend upwardly and terminate at the sides of the mirror. The mirror has a pair of stub shafts rotatably mounted in the upper ends of the post so that the mirror can rotate about a horizontal axis even as the first ring gear rotates about the vertical axis of the mirror.