Method and means for increasing inherent channel capacity for wired network
First Claim
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1. An integrated circuit device or group of devices comprising:
- a receive portion operable to receive signals from a wire-line;
an amplifying portion operable to amplify the receive signals to form amplified signal-plus-noise signals;
an I-Q portion operable to create in-phase and quadrature digital versions of said receive signals, wherein the in-phase and quadrature versions are about ninety degrees out of phase with respect to each other;
a memory portion operable to store the signal-plus-noise signals;
a matrix forming portion operable to form at least one matrix digitally representing a plurality of values, the values consisting of the in-phase and quadrature versions of the receive signals;
an iterative processing portion operable to performing an iterative process on data contained in the matrix to determine an estimate of the magnitude and polarity of a noise portion of the signal-plus-noise for each of one or more trials; and
an operation portion operable to subtract each estimated noise value from the stored signal-plus-noise version to obtain a noise-reduced signal,wherein a topographic digital number array, which covers a positive and negative range of numbers and is in equilibrium about a topocentric value, is used to detect when the polarity of the noise portion of a signal-to-noise combination changes from positive to negative or from negative to positive in response to an injection of a predetermined value probe.
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Abstract
A receive system providing enhanced Signal to Noise performance is applicable to a wide variety of applications including both wireless and wireline systems which further include internet type communications. Received signals are converted to digital values and stored in a manner which enables subsequent processing directed to improving the resolution of the received signals and to reduce the associated noise corresponding to the received data samples. The Signal-to-Noise ratio of the received data signals is improved as a result of processing techniques made possible by the digitally stored nature of the received data and a unique iterative data processing method.
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Citations
4 Claims
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1. An integrated circuit device or group of devices comprising:
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a receive portion operable to receive signals from a wire-line; an amplifying portion operable to amplify the receive signals to form amplified signal-plus-noise signals; an I-Q portion operable to create in-phase and quadrature digital versions of said receive signals, wherein the in-phase and quadrature versions are about ninety degrees out of phase with respect to each other; a memory portion operable to store the signal-plus-noise signals; a matrix forming portion operable to form at least one matrix digitally representing a plurality of values, the values consisting of the in-phase and quadrature versions of the receive signals; an iterative processing portion operable to performing an iterative process on data contained in the matrix to determine an estimate of the magnitude and polarity of a noise portion of the signal-plus-noise for each of one or more trials; and an operation portion operable to subtract each estimated noise value from the stored signal-plus-noise version to obtain a noise-reduced signal, wherein a topographic digital number array, which covers a positive and negative range of numbers and is in equilibrium about a topocentric value, is used to detect when the polarity of the noise portion of a signal-to-noise combination changes from positive to negative or from negative to positive in response to an injection of a predetermined value probe. - View Dependent Claims (2, 3)
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4. A method for increasing the signal to noise ratio of a receive wireline system, said method comprising the steps of:
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receiving receive signals from a wire-line; amplifying said receive signals to form amplified signal-plus-noise signals; creating in-phase and quadrature digital versions of said received signals wherein said in-phase and quadrature versions are about ninety degrees out of phase with respect to each other; storing said signal-plus-noise signals in a memory device; forming at least one matrix digitally representing a plurality of values, said values consisting of said in-phase and quadrature versions of said receive signals; performing an iterative process on data contained in said matrix to determine an estimate of the magnitude and polarity of the noise portion of the signal-plus-noise for each trial; subtracting each estimated noise value from the stored signal-plus-noise version to obtain a noise-reduced signal; and using a topographic digital number array, that covers a positive and negative range and is in equilibrium about a topocentric value, to detect when the polarity of the noise portion of a signal-to-noise combination changes from positive to negative or from negative to positive in response to an injection of a predetermined value probe; in which computed deviations form array values, which are signal level independent, are applied to one row of said matrix in the form of a plus or minus column shift results in the matrix being in equilibrium about the topocentric of the array and thereby enduring the matrix with the ability to serve as a change detector to sense progressive changes as caused by a series of iterative probes.
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Specification