PATENT CLAIM ANALYSIS

Application Number: 15872105
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["455", "456100"]

Abstract:
A time of arrival t and a carrier wave phase ϕ of a positioning pulse that is transmitted from a mobile station in each posteriori period and that is received by each of at least three fixed stations are input. Then, by using an error reduction algorithm, a time of arrival t k+1  of the positioning pulse in the following posteriori period is predicted by using a carrier wave phase difference Δϕ of the positioning pulse. Then, by using the predicted time of arrival t of the positioning pulse, the location of the mobile station is calculated. A time interval dt of a posteriori period is set to a time interval with which a difference Δϕ nm  between the carrier wave phase differences, which is changed by the movement of the mobile station at an assumable maximum movement speed, is no greater than 180°.

Claim (Index 13):
The location system according to  claim 1 , wherein the error reduction algorithm is a Kalman filter algorithm with which the system state measurement value is acquired every time a time step proceeds, the acquired state measurement value is compared with the predicted system state value predicted one time step earlier, and the non-predicted system state value of a following time step is corrected to predict the system state value.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 86.0
- Lexical Diversity: 2.33333
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['09841889', '15801723', '11659199', '14726834', '12725276']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7028457904829585
- 35 USC 102 Novelty (BERT): 0.4822093265679645
- Combined Prediction Score: 0.6807821440914591
- Mean Citation Score: 179.41606000000004
- Max Citation Score: 189.31332
- Similarity Product: 137.8411161663723

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

Dataset: test