PATENT CLAIM ANALYSIS

Application Number: 16085654
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-04
Patent Classification: ["375", "346000"]

Abstract:
A method for limiting impulse noise in a radio signal, in particular in the FM band, that is multiplexed and intended to be received by an FM receiver that is for example located on-board a vehicle. The method includes detecting impulse noise by way of a calculation of a score IND, for a sequence of successive samples of the demodulated radio signal FM MPX, while taking into the account, on the one hand, a capacity to detect a drop in the modulus of the ratio I/Q, which is dependent in particular on data derived from a sensor level, and, on the other hand, a capacity to detect high-frequency noise, which in particular depends on data derived from a sensor modulation.

Claim (Index 1):
A method for limiting noise in a received radio signal,\n especially in the FM band, said received radio signal being multiplexed according to a quadrature amplitude modulation scheme, said modulated received radio signal comprising an in-phase component and a quadrature component, the received radio signal being demodulated in order to consist of a succession of samples, and said radio signal including a risk of impulse noise liable to degrade a returned radio signal, said method comprising: detecting a drop in the modulus of the ratio between the in-phase component and the quadrature component of the modulated received radio signal, depending on the average modulus over time of the modulated received radio signal; detecting high-frequency noise in the demodulated received radio signal, depending on a threshold, said threshold being determined dynamically depending on the modulation of the modulated received radio signal; calculating an impulse noise score, said impulse noise score being dependent on the detection carried out in the first step and on the high-frequency noise detection carried out in the second step; depending on the impulse noise score calculated, determining a number of samples, forming a sequence of samples to be substituted, between a last preserved non-noisy sample and a restart non-noisy sample, in the demodulated received radio signal; creating a sequence of substitution samples, by polynomial interpolation between the last preserved non-noisy sample and the restart non-noisy sample; and returning a modified demodulated radio signal corresponding to the demodulated received radio signal in which the sequence of samples to be substituted has been replaced by the sequence of substitution samples.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 97.0
- Lexical Diversity: 1.95588
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15086236', '16488997', '12152675', '12465917', '16487138']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.417337139579472
- 35 USC 102 Novelty (BERT): 0.4873268582119657
- Combined Prediction Score: 0.4243361114427214
- Mean Citation Score: 171.31530200000003
- Max Citation Score: 191.27428
- Similarity Product: 140.35519577777148

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test