PATENT CLAIM ANALYSIS

Application Number: 15886202
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["348", "078000"]

Abstract:
A gaze-tracking system for use in a head-mounted display apparatus and an aperture device. The gaze-tracking system includes a first light source and a second light source operable to emit light of first and second type respectively; an image sensor operable to capture an image of the user's eye and reflections of the light of first type from the user's eye; a primary lens; an aperture device positioned between the image sensor and the primary lens, and a processor configured to control the first and second light sources and image sensor, and to process the captured image to detect a gaze direction of the user. The aperture device provides a first aperture to the light of first type and a second aperture to the light of second type, the first aperture and the second aperture being substantially concentric, the first aperture being smaller than the second aperture.

Claim (Index 11):
The gaze-tracking system of  claim 1 , further comprising at least one semi-transparent reflective element, wherein the at least one semi-transparent reflective element is to be arranged on the optical path of the reflections of the light of the first type and the second type, such that when incident upon the at least one semi-transparent reflective element, the reflections of the light of the first type and the second type are reflected towards the image sensor.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 88.0
- Lexical Diversity: 2.78947
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15885984', '15886003', '15886023', '15648936', '15842260']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6297555047577502
- 35 USC 102 Novelty (BERT): 0.4877613035649363
- Combined Prediction Score: 0.6155560846384689
- Mean Citation Score: 220.062536
- Max Citation Score: 229.74532
- Similarity Product: 173.7611720667219

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test