PATENT CLAIM ANALYSIS

Application Number: 15773781
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["701", "510000"]

Abstract:
A method of performing a navigation calculation on the basis of a hybrid inertial navigation system on board a vehicle, the method comprising the steps of: performing a hybrid first navigation calculation and an inertial second navigation calculation; calculating in real time a difference between the first navigation calculation and the second navigation calculation, and subjecting the difference to lowpass filtering having a convergence time longer than a period of the Kalman filter and shorter than the Schuler period; and using the filtered difference to correct the second navigation calculation.

Claim (Index 4):
A method according to  claim 3 , wherein the corrected second navigation calculation is prepared from the beginning of alignment, with the convergence time of the lowpass filter initially being selected to be equal to the period of the Kalman filter, and with the convergence time subsequently being a second time that is increased in application of a time variation relationship towards a predetermined value.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 93.0
- Lexical Diversity: 2.04255
- Patent Class: 701.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13383407', '11613724', '13394326', '13139720', '15108778']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.403499264493675
- 35 USC 102 Novelty (BERT): 0.4710274765602061
- Combined Prediction Score: 0.4102520857003282
- Mean Citation Score: 156.02826000000005
- Max Citation Score: 161.48256
- Similarity Product: 123.39811477638244

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