PATENT CLAIM ANALYSIS

Application Number: 15885820
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["345", "442000"]

Abstract:
A method for rendering a shape partially defined by quadratic Bézier curves computes the winding number with respect to one or more closed contours to determine whether a sample position is colored. Numerical robustness is achieved by classifying the controls points of each Bézier curve in order to partition the set of all possible Bézier curves into eight equivalence classes that can each be processed in the same manner. A small table of binary values specifies whether the roots of a classified Bézier curve are eligible to modify the winding number at a particular pixel location.

Claim (Index 1):
A method performed by a computer system for rendering a shape defined at least in part by one or more closed contours composed at least in part of one or more quadratic curves by calculating the associated winding number at a plurality of fixed sample positions corresponding to pixel locations, the method comprising:\n identifying the B\u00e9zier control points for each said quadratic curve; classifying each said control point based on its position with respect to at least one ray; selecting at least one root of each said quadratic curve with respect to said ray, wherein said selection is based on the result of said classification; computing at least one root of each said quadratic curve with respect to said ray; computing at least one intersection point on each said quadratic curve, where said intersection point is computed at a parameter value corresponding to said root; and choosing a color determined by the spatial relationship between said intersection point and at least one said sample position.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 88.0
- Lexical Diversity: 1.41429
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13304119', '11874600', '11848948', '13469920', '11464738']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5977771015243476
- 35 USC 102 Novelty (BERT): 0.486701182369826
- Combined Prediction Score: 0.5866695096088955
- Mean Citation Score: 167.20889800000003
- Max Citation Score: 175.87344
- Similarity Product: 123.31801286544798

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test