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公开(公告)号：US20240080031A1
公开(公告)日：2024-03-07
申请号：US18239309
申请日：2023-08-29
Applicant: NXP B.V.
Inventor： Nenad Pavlovic , Chuang Lu , Vladislav Dyachenko
Abstract: A method of controlling a frequency-modulated oscillator 110 of a phase-locked loop circuit 100 is described, wherein the oscillator 110 comprises a bank of capacitors 413. The method comprises the steps of (i) switching a capacitor 414 of the bank of capacitors 413 to change an output frequency 1050 of an output signal 112 of the oscillator 110 from a first frequency 1051 to a second frequency 1052, (ii) determining a frequency information associated with the capacitor 414 and based on at least one of the first frequency 1051 and the second frequency 1052; and (iii) writing the frequency information to a look-up table 224, 225, 226 stored in a control unit 120 of the oscillator 110. A corresponding frequency-modulated oscillator 110 and phase-locked loop circuit 100 are also described.
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2.发明授权公开(公告)号：US11385321B2
公开(公告)日：2022-07-12
申请号：US16176430
申请日：2018-10-31
Applicant: NXP B.V.
Abstract: A radar unit (400) for detecting an existence of interference is described that includes: a millimetre wave (mmW) transceiver (Tx/Rx) circuit configured to radiate a transmit radar signal and receive an echo signal thereof; a mixed analog and baseband circuit operably coupled to the mmW Tx/Rx circuit; and a signal processor circuit (452) operably coupled to the mixed analog and baseband circuit. An interference detection unit (448) is operably coupled to the mmW Tx/Rx circuit and configured to: monitor a whole or a portion of a radar frequency band supported by the radar unit and identify, from a received interference signal, an arrival direction of the identified interference and a level of interference and output an interference detected signal; and wherein the signal processor circuit (452) is configured to analyse the interference detected signal and quantify a response to the detection of an arrival direction and a level of received interference.
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3.发明申请公开(公告)号：US20190195985A1
公开(公告)日：2019-06-27
申请号：US16176430
申请日：2018-10-31
Applicant: NXP B.V.
CPC classification number: G01S7/023 , G01S7/36 , G01S7/40 , G01S7/4021 , G01S13/931 , H01Q3/36
Abstract: A radar unit (400) for detecting an existence of interference is described that includes: a millimetre wave (mmVV) transceiver (Tx/Rx) circuit configured to radiate a transmit radar signal and receive an echo signal thereof; a mixed analog and baseband circuit operably coupled to the mmW Tx/Rx circuit; and a signal processor circuit (452) operably coupled to the mixed analog and baseband circuit. An interference detection unit (448) is operably coupled to the mmW Tx/Rx circuit and configured to: monitor a whole or a portion of a radar frequency band supported by the radar unit and identify, from a received interference signal, an arrival direction of the identified interference and a level of interference and output an interference detected signal; and wherein the signal processor circuit (452) is configured to analyse the interference detected signal and quantify a response to the detection of an arrival direction and a level of received interference.
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