PATENT CLAIM ANALYSIS

Application Number: 15748730
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["348", "077000"]

Abstract:
An apparatus for detecting when a subject has exited an item of furniture is provided. The apparatus comprises a camera adapted to be arranged, when in use, below the underside of an item of furniture having an upper side for supporting a subject, the underside being opposite to the upper side, and a processing unit. The camera captures sequential images that do not include the upper side of the item of furniture, the images having a foreground corresponding to a region below the underside of the item of furniture and a background corresponding to a region adjacent the item. The processing unit receives images from the camera; detects, for each image, an edge corresponding to an edge of the item; detects the appearance of a feature contiguous with the edge; monitors how a detected feature changes over a time period; determines whether a change to the detected feature satisfies at least one predefined criterion for a subject exit event; and outputs a signal based on the determining.

Claim (Index 7):
The apparatus of  claim 5 , wherein the processing unit is arranged to monitor changes to a detected feature over a time period by:\n determining a rate of change of the detected feature over the time period, based on the first value, the second value, the acquisition time of the first image, and the acquisition time of the second image.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 2.17857
- Patent Class: 348.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15508142', '15221925', '14128767', '14751732', '15653739']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.59124623391692
- 35 USC 102 Novelty (BERT): 0.5352140530757364
- Combined Prediction Score: 0.5856430158328016
- Mean Citation Score: 213.592664
- Max Citation Score: 353.31192000000016
- Similarity Product: 301.34730673386105

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