Abstract: Controlling an image element associated with a distance from an energy measuring device, in a reflected energy measurement system involves producing at least one signal for controlling a common visible characteristic of the image element, in response to a plurality of signals representing respective intensities of reflected energy at respective different frequencies, measured at the energy measuring device at a time corresponding to the distance.

Abstract: A process and apparatus for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers. First and second beam signals are produced in response to delayed channel signals associated with respective transducers, the delayed channel signals representing real and imaginary components of time domain signals associated with respective transducers suitably delayed to focus a receive beam pattern of the transducers at a beam angle, each of the first and second beam signals including separate real and imaginary component representations. The real and imaginary components of the first and second beam signals are combined to produce a composite beam signal, the composite beam signal including separate real and imaginary component representations.

Abstract: A method and apparatus for producing an amplitude value for use in controlling illumination of a pixel on a display, in response to a sampled sonar signal produced by an element of a sonar array. A pixel time associated with the pixel is found, the pixel time representing a time required for sound to travel a distance represented by the pixel, according to a range of distance to be viewed on the display. A sample point of the sampled sonar signal is then found, the sample point having a sample time nearest the pixel time. A delay value associated with the pixel is then found, the delay value including an array element delay value. A representation of a synthesized waveform is then produced, in response to the sonar signal, the representation comprising a plurality of sample points coinciding in time with the sample points of the sonar signal.

Abstract: A method and apparatus for producing an amplitude value for use in controlling illumination of a pixel on a display, in response to a sampled sonar signal produced by an element of a sonar array. A pixel time associated with the pixel is found, the pixel time representing a time required for sound to travel a distance represented by the pixel, according to a range of distance to be viewed on the display. A sample point of the sampled sonar signal is then found, the sample point having a sample time nearest the pixel time. A delay value associated with the pixel is then found, the delay value including an array element delay value. A representation of a synthesized waveform is then produced, in response to the sonar signal, the representation comprising a plurality of sample points coinciding in time with the sample points of the sonar signal.