PATENT CLAIM ANALYSIS

Application Number: 15913468
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["340", "568500"]

Abstract:
Examples of systems and methods for locating movable objects such as carts (e.g., shopping carts) are disclosed. Such systems and methods can use dead reckoning techniques to estimate the current position of the movable object. Various techniques for improving accuracy of position estimates are disclosed, including compensation for various error sources involving the use of magnetometer and accelerometer, and using vibration analysis to derive wheel rotation rates. Various techniques utilize characteristics of the operating environment in conjunction with or in lieu of dead reckoning techniques, including characteristic of environment such as ground texture, availability of signals from radio frequency (RF) transmitters including precision fix sources. Navigation techniques can include navigation history and backtracking, motion direction detection for dual swivel casters, use of gyroscopes, determining cart weight, multi-level navigation, multi-level magnetic measurements, use of lighting signatures, use of multiple navigation systems, or hard/soft iron compensation for different cart configurations.

Claim (Index 15):
The method of  claim 13 , wherein the X-vibration signature has a frequency greater than 1 kHz and occurs within 10 ms of the impulse.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 90.0
- Lexical Diversity: 1.75258
- Patent Class: 340.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15256300', '15672820', '15255530', '11277027', '14299957']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.722231774735354
- 35 USC 102 Novelty (BERT): 0.5850397573182713
- Combined Prediction Score: 0.7085125729936458
- Mean Citation Score: 234.950136
- Max Citation Score: 322.14038
- Similarity Product: 192.9733512707245

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