G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 7/56 (2006.01) G01S 7/64 (2006.01) G01S 15/02 (2006.01) G01S 15/88 (2006.01)
Patent
CA 2474538
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. An amplitude value representing an amplitude of the synthesized waveform at a time corresponding to the pixel time is then produced by finding an amplitude value of the waveform at a time value corresponding to the sum of the sample time and the delay value. The amplitude value is then made available for use in illuminating the pixel.
Imagenex Technology Corp.
Smart & Biggar
LandOfFree
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