Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Power is recovered from an escalator or a moving walkway as the step orbits an endless track on rollers. A generator is connected to a roller orbiting the track. A battery backup is provided. The power is used for emergency lighting on the step, and for data transmission. Advertising and messages are displayed on a dynamic video screen mounted on the step. The apparatus is mostly contained within the escalator step. Information is communicated wirelessly to a remotely located central control station and back to the step, so as to display information in real time and to update advertising while the escalator is in operation. The central control station also monitors performance parameters. The visual display can include LED lighting.

Abstract: Several improvements are disclosed for the design of a protective cover for the probe component of an electronic thermometer. In one embodiment, the probe cover is formed of a thin layer of synthetic resin material having a conductive material dispersed therein to render the cover electrically conductive. A verification circuit in the electronic thermometer utilizes the conductivity of the cover to ascertain that the probe cover is properly positioned on the probe. In one embodiment, the resistance of the probe cover is measured along its length, and the verification circuit includes an enabling circuit to allow the thermometer to operate only if the measured resistance is between predetermined upper and lower ohmic limits. In another embodiment of the present invention, the probe cover retainer element is split into two conductive portions, and the resistance of the probe cover bridging those two portions is measured to ascertain that the probe cover is properly positioned on the probe.

Abstract: An electronic computer which provides an accurate final temperature reading prior to the actual stabilization of the temperature sensor. An algorithm is provided which allows making only two temperature measurements at preselected times yet accurately predicts the end stabilization temperature. A temperature resistance varying is converted to a temperature-frequency varying signal, clocked into an up/down counter, then displayed digitally. A thirty second timing sequence is also digitally displayed for use when the invention is utilized for medical applications.

Abstract: Electronically timed and electrically operated lamps are utilized in place of traditional candles. Actuation of a switch, located on each lamp holder, illuminates that lamp for an accurately timed predetermined period. One clock is utilized to drive a plurality of independent timers, each associated with an individual lamp. The lamp units are provided with the capability of being plugged into the timing unit, so as to permit interchangability.

Abstract: An electronic circuit for use with a thermistor-type thermometer which makes only two measurements and provides a multiple temperature scale capability, a low-power indicator, a simple counting circuit and an enabling control circuit. The thermistor-type thermometer provides a signal having a pulse rate which varies with the temperature sensed and the electronic circuit of the invention operates on this signal to visually display the final temperature after only thirty seconds. Decade counters and logic gates are used with a crystal controlled oscillator to provide counting and timing signals as well as enabling signals required by a specialized temperature prediction algorithm.

Abstract: A self-contained sound masking package including a housing having an interior forming a loudspeaker enclosure in the bottom of which is disposed an electric circuit arranged to be connected to an associated source of electrical power for producing a voltage having a predetermined frequency range within the audible spectrum and with the frequencies at predetermined relative decibel levels, the voltage being applied to a transducer such as a loudspeaker having a coil supported in the housing interior adjacent the top of the housing for introducing an audible sound of the predetermined frequency range and decibel levels into the area surrounding the housing, together with means for connecting a remote signal source to the circuit to provide a supplementary audible output from the loudspeaker into the area and the electric circuit being preferably in the form of a printed circuit board and having filter means which may be selectively activated to provide an audible output from the loudspeaker throughout at least

Abstract: An electronic apparatus to measure temperature which provides an accurate final temperature reading prior to the actual stabilization of the temperature sensor. An algorithm is provided which allows taking only two sensor temperature measurements at preselected times yet accurately predicts the sensor final or stabilization temperature. Temperature resistance varying signals are converted to temperature-frequency varying signals, clocked into an up/down counter, to compute final temperature which is displayed digitally. A thirty-second timing sequence is also digitally displayed for use when the invention is utilized for medical applications.