Abstract: A large scale video display of the present invention is designed to receive a standard NTSC video signal and display it on a large scale array of low cost, voltage or current controlled lamp transducers. The video signals are received by a video capture device which receives and digitizes the video signal. A host processor formats the digital data into a number of 16 bit data words each corresponding to a pixel. A coprocessor receives the 16 bit data words and reformats the data. The reformatted data is connected to a large scale display by a fiber optic connection. The display includes a number of transceivers which receive the formatted video data in a memory buffer. The transceivers also receive a board map from the coprocessor. The map indicates which light boards correspond to each part of the memory where the frame image is stored. This information is used by a number of controllers to determine which lights to turn on and at what level of brightness for any given time.

Abstract: An improved breath analyzing apparatus for use in an automobile ignition locking system. A breath sample tube receives a breath sample from a user. The breath sample tube is divided into a high pressure section and a low pressure section by an air flow restrictor. A pressure sensor is connected to the high pressure section to determine when a user is blowing into the breath analyzing apparatus. A temperature sensor measures the temperature of the breath sample to insure that it is the same temperature as human breath. A micropump propels a specified volume of the breath sample into a fuel cell which is used to determine the alcohol content. Control means converts the output of the fuel cell into a reading which represents the breath alcohol content of the breath sample. Heating elements warm the fuel cell when the ambient temperature drops below a specified level. The output of the fuel cell is adjusted based on the time it takes the fuel cell to reach its maximum output.