Abstract: A non-invasive apparatus for monitoring physiological responses for detecting the presence of drug impairment. The oculomotor and pupillary system is monitored and evaluated to detect the ingestion of drugs and the impairing effect or influence thereof. The horizontal, vertical, oblique and torsional eye movement, eye lid blink activity as well as the size and reactivity of the pupil are the primary data sources. An enclosed chamber surrounds each of the eyes of the subject, and thereby precludes the admission of ambient light. Within each chamber are disposed point sources of infrared radiation specifically oriented with respect to the subject's eye. An infrared sensitive video camera is positioned to minimize the effect of cosine compression within each chamber relative to the subject and is positioned with respect to the infrared radiation sources in order to provide maximum contrast between the pupil and iris of the eye.

Abstract: A system for securing a building complex incorporating a plurality of lockable access locations, including a keypad-operated remote unit at each access location coupled for communication with a control station through a communication network. Access locations are room doors, as of a hotel or an apartment building and the remote units are grouped by floor, each floor having a sub-controller to relay messages and perform control functions. The control station includes a desk unit with a keypad for entering floor-related access code information as chosen by a guest and a separate keyboard for assignment of a room number by a desk clerk which addresses a remote unit. Access codes are stored at remote units located at the assigned rooms so that a room can be unlocked only by manual entry of the proper access code on a keypad of the remote unit. Each remote unit functions independently to open a door associated with it and remains operable even if other portions of the system malfunction.

Abstract: A system for securing a complex with a plurality of lockable access points has a stand-alone keypad-operated remote station at each access point for communication with a desk station through a local area network. In a preferred embodiment the access points are room doors of a hotel or an apartment building and the rooms are divided into groups having separate controllers to relay messages between stations and perform control functions. The desk station then has a keypad for entry of access code information chosen by a guest and a separate keyboard for assignment of a room number by a clerk. The desk station stores the access code at a remote station located at the assigned room, whereupon the room can be unlocked only by manual entry of the code on a keypad of the remote station. Each remote station functions independently to open a door associated with it and remains operable to open the door even if other portions of the system malfunction.