PATENT CLAIM ANALYSIS

Application Number: 16070782
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["351", "206000"]

Abstract:
An apparatus ( 100 ) for deriving a gaze direction of a human eye ( 150 ) includes a light-guide optical element (LOE) ( 120 ) having pair of parallel faces ( 104 a ), ( 104 b ) deployed in facing relation to the eye ( 150 ). A coupling-in configuration, such as a set of partially-reflective surfaces ( 145 ), is associated with LOE ( 120 ) and configured for coupling-in a proportion of light incident on face ( 104 a ) so as to propagate within the LOE. Focusing optics ( 106 ) associated with LOE ( 120 ) converts sets of parallel light rays propagating within the LOE into converging beams of captured light which are sensed by an optical sensor ( 125 ). A processing system ( 108 ) processes signals from the optical sensor ( 125 ) to derive a current gaze direction of the eye. Despite the aperture-combining effect of the LOE, retinal images can be effectively recovered as the only image information brought to focus on the optical sensor.

Claim (Index 7):
The apparatus of  claim 6 , wherein said illumination arrangement is configured to introduce illumination into said LOE so that said illumination propagates within said LOE by reflection at said pair of parallel surfaces and is coupled out towards the eye by said coupling-in configuration.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 95.0
- Lexical Diversity: 1.95833
- Patent Class: 351.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15749511', '15978139', '15513288', '14903249', '13572650']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5892390075672154
- 35 USC 102 Novelty (BERT): 0.4807823366421194
- Combined Prediction Score: 0.5783933404747058
- Mean Citation Score: 214.63838
- Max Citation Score: 227.36267
- Similarity Product: 166.50289696024657

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