PATENT CLAIM ANALYSIS

Application Number: 15885984
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, and a method of tracking a user's gaze, via such a gaze-tracking system. The gaze-tracking system includes a plurality of illuminators for emitting light pulses to illuminate a user's eye when the head-mounted display apparatus is worn by the user, the illuminators including at least a first illuminator and a second illuminator; at least one lens positioned on an optical path of reflections of the light pulses from the user's eye, the at least one lens having no chromatic-aberration correction; at least one camera for capturing an image of the reflections of the light pulses; and a processor coupled with illuminators and the at least one camera, the processor being configured to control operations of the illuminators and the at least one camera, and to process the captured image to detect a gaze direction of the user.

Claim (Index 1):
A gaze-tracking system for use in a head-mounted display apparatus, the gaze-tracking system comprising:\n a plurality of illuminators for emitting light pulses to illuminate a user's eye when the head-mounted display apparatus is worn by the user, the plurality of illuminators comprising at least a first illuminator and a second illuminator, a first wavelength of light emitted by the first illuminator being longer than a second wavelength of light emitted by the second illuminator; at least one lens positioned on an optical path of reflections of the light pulses from the user's eye, wherein the at least one lens has no chromatic-aberration correction, whereby a first focal plane of the at least one lens corresponding to the first wavelength is farther away from the at least one lens than a second focal plane of the at least one lens corresponding to the second wavelength; at least one camera for capturing an image of the reflections of the light pulses, wherein the image is representative of a position of the reflections on an image plane of the at least one camera; and a processor coupled in communication with the plurality of illuminators and the at least one camera, wherein the processor is configured to control operations of the plurality of illuminators and the at least one camera, and to process the captured image to detect a gaze direction of the user.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 88.0
- Lexical Diversity: 2.3
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15886003', '15886023', '15648936', '11255174', '12750967']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6844757166918194
- 35 USC 102 Novelty (BERT): 0.5386952236970843
- Combined Prediction Score: 0.6698976673923459
- Mean Citation Score: 315.87759
- Max Citation Score: 391.2434
- Similarity Product: 322.1485643434763

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