Vehicle radio interference sensor
AssigneeNXP B.V.
InventorsAnthony Kerselaers, Liesbeth Gommé
Life of this patent
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Abstract
An interference sensor device is disclosed. The interference sensor device includes a first conductive plate and a second conductive plate aligned parallel to the first conductive plate. A non-conductive matter is included between the first conductive plate and the second conductive plate. A band pass filter is coupled with the first conductive plate and the second conductive plate. The band pass filter includes a sensor coil. A current transformer having a primary side and a secondary side is included. The primary side is coupled with the band pass filter, and the secondary side is configured to be coupled with a cable. The current transformer having a high capacitive isolation.
Claims10
An interference sensor device, comprising:
- a first conductive plate;
- a second conductive plate aligned parallel to the first conductive plate;
- a non-conductive matter between the first conductive plate and the second conductive plate;
- a band pass filter formed with the first conductive plate and the second conductive plate, wherein the band pass filter includes a sensor coil;
- a current transformer having a primary side and a secondary side, wherein the primary side is coupled with the low pass filter, and the secondary side is configured to be coupled with a cable, wherein the current transformer having a high capacitive isolation.
A broadcast noise filtering system, comprising:
- an interference sensor device, including:
- a first conductive plate;
- a second conductive plate aligned parallel to the first conductive plate;
- a non-conductive matter between the first conductive plate and the second conductive plate;
- a low pass filter coupled with the first conductive plate and the second conductive plate, wherein the low pass filter includes a sensor coil;
- a current transformer having a primary side and a secondary side, wherein the primary side is coupled with the low pass filter, and the secondary side is configured to be coupled with a cable, wherein the current transformer is a step up transformer;
- a signal processor configured to receive a first signal from an antenna and a second signal from the interference sensor device;
- and
- a phase/amplitude changer coupled to the signal processor and the interference sensor device configured to be controlled by the signal processor through a feedback loop to correct phase and amplitude of the second signal;
- wherein the signal processor is configured to subtract the second signal from the first signal.
Dependencies are inferred from the claim text.