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公开(公告)号：US20190250974A1
公开(公告)日：2019-08-15
申请号：US15895171
申请日：2018-02-13
Applicant: NXP B.V.
Inventor： Peter van de Haar , Lucas Pieter Lodewijk van Dijk
CPC classification number: G11C29/52 , G06F11/07 , G06F13/16 , G06F13/1668 , G11C29/04 , G11C2029/0409 , H03K19/21
Abstract: Aspects of the present disclosure are directed to assessing characteristics of stored data, as may be implemented for verification thereof. As may be implemented in connection with one or more apparatus or method-based embodiments, a first data signature is generated, which corresponds to a logical derivation of configuration data sent over a data bus. Outputs that correspond to data read out from each of a plurality of configuration registers, which receive the configuration data over the data bus, are logically combined into a second data signature. The first data signature and the second data signature are processed and compared for ascertaining that stored data, as stored in each of the plurality of configuration registers, accurately corresponds to the configuration data sent over the data bus for writing into each of the plurality of configuration registers.
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公开(公告)号：US20180013604A1
公开(公告)日：2018-01-11
申请号：US15619259
申请日：2017-06-09
Applicant: NXP B.V.
Inventor： Joerg Heinrich Walter Wenzel , Robert Rutten , Evert-Jan Pol , Jan van Sinderen , Tjeu van Ansem , Peter van de Haar
CPC classification number: H04L27/364 , H04L1/20 , H04L27/3863
Abstract: The disclosure relates to an IQ mismatch correction module for a radio receiver, the IQ mismatch correction module comprising: an input terminal configured to receive an input signal; an output terminal configured to provide a filtered output signal; a mismatch detection module comprising: one or more bandpass filters configured to receive, from the input terminal or output terminal, a bandpass input signal and to pass a plurality of sub-bands of the bandpass input signal to provide respective bandpass filtered signals; one or more amplitude and phase mismatch detectors configured to determine amplitude and phase mismatch coefficients based on the bandpass filtered signals from the plurality of sub-bands; a transformation unit configured to apply a transformation to the amplitude and phase mismatch coefficients to provide correction filter coefficients for the plurality of sub-bands; and a filter module configured to: receive the filter coefficients for the plurality of sub-bands from the mismatch detection module; and filter the input signal in accordance with the received filter coefficients to provide the filtered output signal.
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公开(公告)号：US10447523B2
公开(公告)日：2019-10-15
申请号：US15619259
申请日：2017-06-09
Applicant: NXP B.V.
Inventor： Joerg Heinrich Walter Wenzel , Robert Rutten , Evert-Jan Pol , Jan van Sinderen , Tjeu van Ansem , Peter van de Haar
Abstract: The disclosure relates to an IQ mismatch correction module for a radio receiver, the IQ mismatch correction module comprising: an input terminal configured to receive an input signal; an output terminal configured to provide a filtered output signal; a mismatch detection module comprising: one or more bandpass filters configured to receive, from the input terminal or output terminal, a bandpass input signal and to pass a plurality of sub-bands of the bandpass input signal to provide respective bandpass filtered signals; one or more amplitude and phase mismatch detectors configured to determine amplitude and phase mismatch coefficients based on the bandpass filtered signals from the plurality of sub-bands; a transformation unit configured to apply a transformation to the amplitude and phase mismatch coefficients to provide correction filter coefficients for the plurality of sub-bands; and a filter module configured to: receive the filter coefficients for the plurality of sub-bands from the mismatch detection module; and filter the input signal in accordance with the received filter coefficients to provide the filtered output signal.
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