PATENT CLAIM ANALYSIS

Application Number: 15933122
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-09
Patent Classification: ["348", "053000"]

Abstract:
A head-mounted device (HMD) is configured to perform head tracking, even in low light environments. The HMD includes a stereo camera pair that includes a first camera and a second camera having overlapping fields of view. Both cameras are mounted on the HMD and are configured to detect both visible light and infrared (IR) light. The HMD also includes a flood IR light illuminator that is configured to emit a flood of IR light that spans an illumination area that overlaps with the cameras' fields of view. The intensity of the IR light is sometimes modified to accommodate low light environmental conditions. The cameras obtain images of reflected IR light. These images are then used to track movements of the HMD, even in low light environments.

Claim (Index 13):
A method for tracking a position of a head-mounted device (HMD) within a surrounding environment, the method comprising:\n emitting a flood of infrared (IR) light from a flood IR light illuminator that is mounted on the HMD, the flood of IR light being emitted at an illumination intensity into the surrounding environment and which results in reflected IR light being reflected from one or more objects in the surrounding environment; capturing an image of the reflected IR light with a camera system mounted to the HMD; identifying a quantity of anchor points in the captured image; and modifying the illumination intensity by increasing or decreasing a power supplied to the flood IR light illuminator to alter the quantity of anchor points that are detected in a subsequent image captured by the camera system and until the quantity of anchor points that are detected is a predetermined quantity of anchor points.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 90.0
- Lexical Diversity: 2.0
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15933101', '15928787', '15684675', '15447064', '15334216']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.637113239346542
- 35 USC 102 Novelty (BERT): 0.5817261020493212
- Combined Prediction Score: 0.6315745256168199
- Mean Citation Score: 307.767778
- Max Citation Score: 512.9137599999998
- Similarity Product: 416.0737582872008

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