公开(公告)号：US12196793B2

公开(公告)日：2025-01-14

申请号：US18047843

申请日：2022-10-19

Applicant: NXP B.V.

Inventor： Harish Kundur Subramaniyan ,  Erwin Johannes Gerardus Janssen ,  Xi Zhang

IPC: G01R27/26 ,  G01R15/04 ,  H04B17/11 ,  H04B17/15 ,  H04B17/21 ,  H04B17/29

Abstract: It is described an attenuation measurement device (100), comprising: i) a detector unit (110) having a coupling capacitance (120), and an input capacitance (130), wherein the detector unit (110) is configured to produce a detector output signal (112a,b) in reply to an input signal received at the coupling capacitance (120) and/or at the input capacitance (130); ii) a test unit (140), coupled to the detector unit (110), and configured to provide a test signal (141) with at least one known signal property as a first input signal to the coupling capacitance (120); iii) a calibration unit (150), coupled to the detector unit (110), and configured to provide a calibration signal (151) as a second input signal to the input capacitance (130); and iv) a control unit configured to a) determine a first detector output signal (112a) produced by the detector unit (110) in response to the test signal (141), b) identify a specific calibration signal (151) that yields a second detector output signal (112b) that is comparable to the first detector output signal (112a), and c) derive a capacitance-indicative information based on the identified specific calibration signal (151).

公开(公告)号：US20230176103A1

公开(公告)日：2023-06-08

申请号：US18047843

申请日：2022-10-19

Applicant: NXP B.V.

Inventor： Harish Kundur Subramaniyan ,  Erwin Johannes Gerardus Janssen ,  Xi Zhang

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G01R27/2611 ,  G01R27/2688

Abstract: It is described an attenuation measurement device (100), comprising:
i) a detector unit (110) having a coupling capacitance (120), and an input capacitance (130), wherein the detector unit (110) is configured to produce a detector output signal (112a,b) in reply to an input signal received at the coupling capacitance (120) and/or at the input capacitance (130);

ii) a test unit (140), coupled to the detector unit (110), and configured to provide a test signal (141) with at least one known signal property as a first input signal to the coupling capacitance (120);

iii) a calibration unit (150), coupled to the detector unit (110), and configured to provide a calibration signal (151) as a second input signal to the input capacitance (130); and

iv) a control unit configured to

a) determine a first detector output signal (112a) produced by the detector unit (110) in response to the test signal (141),

b) identify a specific calibration signal (151) that yields a second detector output signal (112b) that is comparable to the first detector output signal (112a), and

c) derive a capacitance-indicative information based on the identified specific calibration signal (151).