Abstract: A surveillance system wherein a TV camera is pivotally mounted along its optical axis on or along a ceiling, and a mirror is pivotally mounted about an axis perpendicular to the optical axis to intercept the view of the camera. Then, by selected rotation of the camera and mirror about these axes, both pan and tilt functions are achieved in a very compact structure. Camera and mirror controls are effected by a wireless link to a carriage supporting the camera, and the video output of the camera is applied as an output over a second wireless link. Further, power for locomotion of the carriage, orientation of elements on the carriage, and for electronic circuitry on the carriage is all provided via a battery on the carriage. The charge on the battery is maintained by a trolley-type power application system.

Abstract: A closed circuit TV surveillance system for business and other types of establishments in which a TV camera is movable along and suspended from a modified T-shaped rail assembly, which assembly is within a partially opaque housing. The view of the camera is selectively trainable by a movable mirror on any area of interest along the rail assembly, including, for example, stations at which there are electronic indicating cash registers. Digital data from the cash register observed is converted to video characters and mixed with the video output of the camera, and the combined video presentation is recorded.

Abstract: A shopping cart wherein the positioning of an article on a lower tray is signalled to a checkout attendant. A tray is pivotally supported at one end and spring biased in an upper position at an opposite end. A reflector is positioned on the tray such that it is moved to a lower position when an object is placed on the tray. A beam of light is directed across the path of a cart as it approaches a checkout position. This beam is at an elevation to strike the reflector when the tray is deflected downward by the weight of an object. A light sensor is positoned to detect light reflected by the reflector and to initiate a signal to a checkout attendant, alerting the attendant to the fact that there is an object on the tray.

Abstract: A surveillance system wherein a TV camera is pivotally mounted along its optical axis on or along a ceiling, and a mirror is pivotally mounted about an axis perpendicular to the optical axis to intercept the view of the camera. Then, by selected rotation of the camera and mirror about these axes, both pan and tilt functions are achieved in a very compact structure.

Abstract: A closed circuit TV surveillance system for business and other types of establishments in which a TV camera is movable along a ceiling suspended rail assembly, which assembly is within a partially opaque housing. The camera is selectively trainable, manually or automatically, on any area of interest along the rail assembly, including, for example, stations at which there are electronic indicating cash registers. Digital data from the cash register observed is converted to video characters and mixed with the video output of the camera, and the combined video presentation is recorded.

Abstract: A closed circuit TV surveillance system for retail and industrial establishments in which one or more cameras are movable along a rail assembly suspended from the ceiling which enables the cameras to be selectively trained on any area of interest within the establishment. Employing two cameras, one may be both tilted and horizontally trained to observe any location within the line of sight of the camera and the other one particularly tilted and trained to observe the amount showing on a cash register.

Abstract: A closed circuit TV surveillance system for retail and industrial establishments in which one or more cameras are movable along a rail assembly suspended from the ceiling which enables the cameras to be selectively trained on any area of interest within the establishment. Employing two cameras, one may be both tilted and horizontally trained to observe any location within the line of sight of the camera and the other one particularly tilted and trained to observe the amount showing on a cash register.