PATENT CLAIM ANALYSIS

Application Number: 16214890
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["455", "456200"]

Abstract:
A real-time location system (RTLS) uses transmitting and listening tags, bridges, and beacons. The fixed beacons broadcast BLE advertisements containing motion-status information about recent history of perceived motion in. a room as determined from a motion sensor in the beacon. The bridges forward the beacon's received advertisements to a location engine, which records timestamps of motion events seen by each beacon in each room. One or more tags then report their own motion status based on a tag-based accelerometer. The system utilizes a series of location-engine steps, to estimate the room-location of the tags based on a specific combination of RSSI analysis, and a comparison of tag-motion history to the perceived arid recorded motion-status in a room. This analysis of tag-motion history and motion-in-room status produces a better estimate of room-level location of the tag than can be estimated by simple proximity or multi-lateration using radio signal strengths.

Claim (Index 2):
A method of estimating room-location for at least one asset tag used in a real-time location system (RTLS), comprising the steps of:\n calculating a first location estimate using a first location method for the at least one tag, based on radio characteristics of BLE beacon signals emitted by at least one beacon in fixed locations and received by the at least one tag; calculating a second location estimate using a second location method for the at least one tag, based on comparing changes in the history of motion status in the beacons' rooms, optional changes in the history of motion changes in the bridges' rooms and the coincident history of changes in accelerometer-determined motion status of the at least one tag that is likely in the room; and combining the first and second location estimates using a third location method for determining a location result for the at least one tag.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 1.73404
- Patent Class: 455.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16010732', '16010747', '16214979', '15211201', '15211232']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6633621647303888
- 35 USC 102 Novelty (BERT): 0.5452538654239237
- Combined Prediction Score: 0.6515513347997423
- Mean Citation Score: 264.291288
- Max Citation Score: 390.55893
- Similarity Product: 290.5368117158389

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