PATENT CLAIM ANALYSIS

Application Number: 16149023
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["348", "043000"]

Abstract:
Using the same image sensor to capture a two-dimensional (2D) image and three-dimensional (3D) depth measurements for a 3D object. A laser point-scans the surface of the object with light spots, which are detected by a pixel array in the image sensor to generate the 3D depth profile of the object using triangulation. Each row of pixels in the pixel array forms an epipolar line of the corresponding laser scan line. Timestamping provides a correspondence between the pixel location of a captured light spot and the respective scan angle of the laser to remove any ambiguity in triangulation. An Analog-to-Digital Converter (ADC) in the image sensor operates as a Time-to-Digital (TDC) converter to generate timestamps. A timestamp calibration circuit is provided on-board to record the propagation delay of each column of pixels in the pixel array and to provide necessary corrections to the timestamp values generated during 3D depth measurements.

Claim (Index 20):
The image sensor unit of  claim 15 , further comprising a processing unit coupled to the plurality of ADC units, the processing unit generating a corrected timestamp value for the pixel-specific timestamp value for the pixel-specific output of the corresponding pixel based on a column-specific correction value representing a column-specific propagation delay between the pixel-specific output and when the pixel-specific output reaches a predetermined threshold,\n wherein the processing unit further determines a distance to the detected light spot on the surface of the object based at least on the corrected timestamp value and on a scan angle used by the light source to project the detected light spot.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 97.0
- Lexical Diversity: 1.875
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14973709', '14989716', '14842822', '15225816', '14842825']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6300788695910695
- 35 USC 102 Novelty (BERT): 0.5456973410767681
- Combined Prediction Score: 0.6216407167396394
- Mean Citation Score: 340.217974
- Max Citation Score: 394.67285
- Similarity Product: 313.50481376442315

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