PATENT CLAIM ANALYSIS

Application Number: 16282878
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-08
Patent Classification: ["455", "456100"]

Abstract:
In a position measurement apparatus, to maintain accuracy of a trajectory even when the frequency of acquisition of absolute position information is reduced, a movement information generation unit generates movement information including a movement distance and a movement direction of a device of interest based on a sensor value, and a reliability generation unit generates reliability information indicating a reliability value of the movement information. An amount of distance correction and an amount of angle correction to be made every predetermined number of steps are determined based on the reliability information and the movement information, and the distance and the angle are corrected every predetermined number of steps starting from the latest already-corrected position information.

Claim (Index 11):
The position measurement apparatus according to  claim 1 , wherein\n the sensor includes at least one of a gyro sensor, a geomagnetic sensor, and acceleration sensor, and an atmospheric pressure sensor, the reliability generation unit performs a combination of plurality of processes selected from a group including\n a process of generating a reliability value of an angle from a ratio of a first principal component of information associated with the movement direction to a second principal component of the information associated with the movement direction, \n a process of generating a reliability value of an angle by calculating a difference between information associated with the movement direction obtained by integrating a value acquired from the gyro sensor and information associated with the movement direction acquired from the geomagnetic sensor, \n a process of generating a reliability value of an angle by calculating an amount of change of information associated with the movement direction obtained from a magnitude of a resultant vector of vectors along three axes of the geomagnetic sensor, \n a process of generating a reliability value of an angle by calculating an amount of change of information associated with the movement direction obtained from a magnetic inclination of the geomagnetic sensor, \n a process of generating a reliability value of an angle by calculating an amount of change of information associated with the movement direction obtained from derivatives along three axes of the gyro sensor, \n a process of generating a reliability value of an angle from a difference in angle between attitude information corresponding to a sensor value of the acceleration sensor and attitude information corresponding to a sensor value of the geomagnetic sensor, \n a process of generating a reliability value of a distance from a difference between a movement distance obtained from an amount of change of the atmospheric pressure sensor and a movement distance obtained from an amount of change of the acceleration sensor, and \n a process of generating a reliability value of a distance from a difference between an average moving time of a user and information associated with the movement distance obtained from an amount of change of a velocity obtained by dividing a value of the acceleration sensor by a moving time taken for the user to move a predetermined number of steps.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 99.0
- Lexical Diversity: 2.2
- Patent Class: 455.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12166062', '12533788', '12606646', '14073251', '13750637']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6772075690860725
- 35 USC 102 Novelty (BERT): 0.4978242894262357
- Combined Prediction Score: 0.6592692411200889
- Mean Citation Score: 202.058012
- Max Citation Score: 219.64363
- Similarity Product: 159.9137820915872

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