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 20):
The apparatus of  claim 1 , further comprising a support configuration for supporting the apparatus relative to the head of a human user such that said. LOE is deployed in facing relation to a first eye of the user, the apparatus further comprising:\n (a) a second-eye light-guide optical element (LOE) formed from transparent material and having pair of parallel faces for guiding light by internal reflection, one of said parallel faces being deployed in facing relation to a second eye of the user; (b) a coupling-in configuration associated with said second-eye LOE and configured for coupling-in a proportion of light incident on one of said parallel faces within a coupling-in region so as to propagate within said LOE; (c) focusing optics associated with said second-eye LOE and configured for converting sets of parallel light rays propagating within said LOE into converging beams of captured light; and (d) a second-eye optical sensor deployed for sensing said captured light, wherein said processing system is further associated electrically associated with said second-eye optical sensor and configured so as to process signals from both of said optical sensors to derive a current gaze direction of the eyes of the user.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 95.0
- Lexical Diversity: 1.95833
- Patent Class: 351.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15749511', '15978139', '15513288', '14903249', '13572650']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5614657379407839
- 35 USC 102 Novelty (BERT): 0.4730431286044522
- Combined Prediction Score: 0.5526234770071508
- Mean Citation Score: 214.63838
- Max Citation Score: 227.36267
- Similarity Product: 177.5532146876949

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

Dataset: test