PATENT CLAIM ANALYSIS

Application Number: 16119234
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2018-12
Patent Classification: ["345", "166000"]

Abstract:
A device for analyzing the surface structure of an object, the device comprising a touchable Lambertian light diffusing surface that covers a cavity containing a light source and an image sensor. The image detector senses the contact of the outer Lambertian surface of the device by a contacting object, for example a finger-tip, by means of light from the light source reflecting back to the image detector. At the same time, ambient light from objects external to the device is diffusely scattered by the Lambertian surface as it enters the cavity and does not affect the ability of the image detector to clearly determine the surface structure of the contacting object. Thus, for example, the surface contours of a fingerprint may be determined with a high signal-to-noise ratio.

Claim (Index 1):
A surface-contact device for analyzing surface features of a fingertip for biometric identification purposes, comprising:\n a cavity within which is located a light source and an image sensor sensitive to said light source; a semi-transparent plate having an outer surface and an inner surface, covering said cavity, wherein said outer surface is a Lambertian surface; wherein said inner surface is configured to be illuminated from within by said light source and, when said illumination occurs, said illumination also strikes said Lambertian surface and a bright reflection is radiated from surface features of an object contacting said outer Lambertian surface; wherein when a finger tip is placed against said outer surface in a predetermined position, said bright reflection creates a well defined image of said surface features in said predetermined position that is detectable by said image sensor; wherein said well defined image of said surface features is distinguishable from images formed by ambient illumination of arbitrary intensity and frequency emanating from background objects external to said device and not in contact with said Lambertian surface and wherein said ambient illumination, therefore, is diffusely scattered from said Lambertian surface; wherein said surface contact device is configured to analyze said well defined prepositioned image to determine surface features, and to recall from an associated memory cache a set of stored images of prepositioned finger tips and compare them individually to said surface features of said well defined prepositioned image.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 2.02941
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15662596', '13482086', '15058405', '14032604', '13743582']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6950189263103845
- 35 USC 102 Novelty (BERT): 0.5609427412975139
- Combined Prediction Score: 0.6816113078090975
- Mean Citation Score: 361.146868
- Max Citation Score: 447.17148
- Similarity Product: 386.7883285456252

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