PATENT CLAIM ANALYSIS

Application Number: 15898441
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["345", "008000"]

Abstract:
A gaze-tracking system for use in a head-mounted display apparatus. The gaze-tracking system includes at least one illuminator to emit light pulses for illuminating a user's eye; at least one camera to capture image of reflections of the light pulses; at least one reflective element arranged on an optical path of the reflections of the light pulses, such that when incident upon the at least one reflective element, the reflections of the light pulses are reflected towards the at least one camera; at least one actuator associated with the at least one reflective element, wherein the at least one actuator moves the at least one reflective element; and a processor configured to: process the at least one image to detect a gaze direction of user; and control the at least one actuator to adjust, based upon the detected gaze direction, position of the at least one reflective element.

Claim (Index 14):
A method of tracking a user's gaze, via a gaze-tracking system of a head-mounted display apparatus, the gaze-tracking system comprising at least one illuminator, at least one camera, at least one reflective element and at least one actuator associated with the at least one reflective element, the method comprising:\n (i) emitting light pulses, via the at least one illuminator, the light pulses being used to illuminate a user's eye when the head-mounted display apparatus is wom by the user; (ii) capturing, via the at least one camera, at least one image of reflections of the light pulses from the user's eyes, wherein the at least one reflective element is arranged on an optical path of the reflections of the light pulses, such that when incident upon the at least one reflective element, the reflections of the light pulses are reflected towards the at least one camera; (iii) processing the at least one image to detect a gaze direction of the user; and (iv) controlling the at least one actuator to adjust, based upon the detected gaze direction of the user, a position of the at least one reflective element; wherein the at least one camera is operable to capture at least two images of the reflections of the light pulses, and wherein the method further comprises:\n controlling the at least one actuator to move the at least one reflective element to a first position; \n capturing, via the at least one camera, a first image of the reflections of the light pulses, when the at least one reflective element is arranged at the first position; \n controlling the at least one actuator to move the at least one reflective element to a second position, wherein the second position is different from the first position; and \n capturing, via the at least one camera, a second image of the reflections of the light pulses, when the at least one reflective element is arranged at the second position.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 88.0
- Lexical Diversity: 2.45455
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15886023', '15885984', '15886003', '15650796', '15648936']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.673532319962548
- 35 USC 102 Novelty (BERT): 0.5055524060034912
- Combined Prediction Score: 0.6567343285666424
- Mean Citation Score: 276.152762
- Max Citation Score: 312.70465
- Similarity Product: 290.85292089284656

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