PATENT CLAIM ANALYSIS

Application Number: 16213043
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["348", "078000"]

Abstract:
There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.

Claim (Index 1):
A pupil tracking device, comprising:\n a single light source configured to emit light toward an eyeball in a first brightness value at a first time to form a first reflection spot on the eyeball, and the single light source configured to emit light toward the eyeball in a second brightness value at a second time to form a second reflection spot on the eyeball, wherein the first brightness value is different from the second brightness value, and the first time is different from the second time; an image sensor configured to capture a first image containing a brightest region associated with the first reflection spot on the eyeball corresponding to the first brightness value and a second image containing a brightest region associated with the second reflection spot on the eyeball corresponding to the second brightness value; and a processing unit electrically coupled to the image sensor and the single light source, and configured to\n calculate a differential image between the first image and the second image, and \n identify a darkest region in the differential image as an image of the single light source projected on the eyeball when a position of the darkest region in the differential image corresponds to a position of the brightest region in the first image or the brightest region in the second image.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 98.0
- Lexical Diversity: 2.35
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15253503', '14054724', '15571997', '10486586', '14918262']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.633564530661831
- 35 USC 102 Novelty (BERT): 0.5764672542015801
- Combined Prediction Score: 0.627854803015806
- Mean Citation Score: 295.173174
- Max Citation Score: 462.5444
- Similarity Product: 458.27325984227656

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