PATENT CLAIM ANALYSIS

Application Number: 15965072
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["345", "633000"]

Abstract:
Disclosed is a system and method for tracking a user's eye using structured light. The structured light system is calibrated by training a model of surface of the user's eye. A structured light emitter projects a structured light pattern (e.g., infrared structured light) onto a portion of the surface of the eye. From the viewpoint of a camera, the illumination pattern appears distorted. Based on the distortion of the illumination pattern in the captured image, the eye tracking system can determine the shape of the portion of the user's eye that the structured light is incident upon. By comparing the determined shape of the portion of the user's eye to the model, the orientation of the eye may be determined. The eye tracking system or elements thereof may be part of a head-mounted display, e.g., as part of a virtual reality system.

Claim (Index 10):
An eye tracking unit comprising:\n a first structured light emitter configured to illuminate a first eye of a user with a first structured light pattern, wherein the first structured light pattern produces a first illumination pattern on a portion of a surface of the first eye; a second structured light emitter configured to illuminate a second eye of the user with a second structured light pattern, wherein the second structured light pattern produces a second illumination pattern on a portion of a surface of the second eye; a first camera configured to capture a first image of the first illumination pattern on the portion of the surface of the first eye; a second camera configured to capture a second image of the second illumination pattern on the portion of the surface of the second eye; and an eye orientation estimation module configured to:\n estimate a first foveal axis of the first eye based on the first image captured by the first camera and a model, the first foveal axis defining an orientation of the first eye, and \n estimate a second foveal axis of the second eye based on the second image captured by the second camera and the model, the second foveal axis defining an orientation of the second eye.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 2.36765
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15335634', '15408104', '15456383', '15808758', '15658117']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6089762738528304
- 35 USC 102 Novelty (BERT): 0.5370243450746623
- Combined Prediction Score: 0.6017810809750136
- Mean Citation Score: 254.150338
- Max Citation Score: 364.41013
- Similarity Product: 302.51720102080816

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