High resolution images from reflected wave energy
First Claim
1. A process for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers, the process comprising:
- producing first and second beam signals in response to delayed channel signals associated with respective transducers, said 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 least one beam angle, each of said first and second beam signals including separate real and imaginary component representations;
combining said real and imaginary components of said first and second beam signals, to produce a composite beam signal, said composite beam signal including separate real and imaginary component representations;
performing a trigonometric expansion on normalized values of said real and imaginary component representations of said composite beam signal to produce a plurality of expanded values; and
producing illumination signals in response to said expanded values, for illuminating pixels on the display.
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Accused Products
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. A trigonometric expansion is performed on normalized values of the real and imaginary component representations of the composite beam signal to produce a plurality of expanded values and illumination signals are produced in response to the expanded values, for illuminating pixels on the display.
31 Citations
65 Claims
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1. A process for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers, the process comprising:
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producing first and second beam signals in response to delayed channel signals associated with respective transducers, said 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 least one beam angle, each of said first and second beam signals including separate real and imaginary component representations; combining said real and imaginary components of said first and second beam signals, to produce a composite beam signal, said composite beam signal including separate real and imaginary component representations; performing a trigonometric expansion on normalized values of said real and imaginary component representations of said composite beam signal to produce a plurality of expanded values; and producing illumination signals in response to said expanded values, for illuminating pixels on the display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An apparatus for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers, the apparatus comprising:
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means for producing first and second beam signals in response to delayed channel signals associated with transducers, said 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 said first and second beam signals including separate real and imaginary component representations; means for combining said real and imaginary components of said first and second beam signals, to produce a composite beam signal, said composite beam signal including separate real and imaginary component representations; means for performing a trigonometric expansion on normalized values of said real and imaginary component representations of said composite beam signal to produce a plurality of expanded values; and means for producing illumination signals, in response to said expanded values, said illumination signals being operable to be received by said display for illuminating pixels on the display. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An apparatus for producing signals for controlling a display to produce an image in an imaging system employing a plurality of transducers, the apparatus comprising:
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memory for storing delayed channel signals associated with respective transducers, said 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; a processor in communication with said memory and operably configured to; produce first and second beam signals in response to said delayed channel signals, each of said first and second beam signals including separate real and imaginary component representations; combine said real and imaginary components of said first and second beam signals, to produce a composite beam signal, said composite beam signal including separate real and imaginary component representations; perform a trigonometric expansion on normalized values of said real and imaginary component representations of said composite beam signal produce a plurality of expanded values; and produce illumination signals in response to said expanded values, for use by the display, for illuminating pixels on the display. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65)
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Specification