Abstract: A cable, adapter, or converter device is disclosed that enables a peripheral device (e.g., external display) normally connected only through a non-USB port to communicate with a host computer via a USB port in addition to its non-USB port. DDC-formatted signals from the peripheral device are converted to the appropriate format for input through the USB port, and signals transmitted to the peripheral device from the USB port are converted to the format recognizable by the external peripheral, allowing access to peripheral features via the host system.

Abstract: A colorimeter method and apparatus is described that is used to accurately deduce the color of a source which is varying in intensity with respect to time. The colorimeter consists of a plurality of sensors with varied spectral responsivity, a means of shielding these sensors from the effects of ambient illumination and a computational element to analyze the temporal and intensity variation of the signal under measurement. The output from the sensors is integrated and analyzed based upon the measured light intensity, time variant, and characteristics of the source. Sources such as CRT monitors, Flat Panel displays, and stroboscopic illuminators, are typical representations of time variant sources.

Abstract: A simple, low cost x-ray scanner providing enhanced resolution is formed by providing a straight-line optical path from an illuminating source, through the x-ray image to be scanned and thence to an imaging lens which forms an image on a CCD array. The x-ray film is fed by means of gravity to a pair of rollers, immediately above which are formed first and second apertures on either side of the roller. The film is eliminated through the apertures which provide a field stop for the optical system. A shutter immediately adjacent one of the apertures is coupled to a width-adjustment mechanism actuated by a feed guide for the film to thereby adjust the width of the aperture to the width of the film. The output of the CCD is modified to expand the output at low levels and compress it at high levels via a logarithmic mapping to adapt the high resolution CCD output to a lower resolution video display processor.