PATENT CLAIM ANALYSIS

Application Number: 15871050
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["356", "497000"]

Abstract:
In interferometer imaging signal acquisition using a movable optical beam to sample a target with specular or non specular reflecting surfaces or internal features, beam moving during interferometer signal acquisition can generate unwanted phase error due to shifting speckle field. Examples include coherent LIDAR, Interferometry Doppler sensing and optical coherence tomography. During an interferometer signal acquisition period, an interferometer sensing beam can be substantially stationary, and active step-scanning can be synchronized with interferometer signal acquisition cycles. For interferometers using repetitive chirping lasers, passive dispersive counter-scan mechanisms can be used to assist step-scanning operation.

Claim (Index 1):
An apparatus of transversely step scanning an interferometer sensing beam comprising:\n a light source; a beamsplitter splitting the light source into a reference beam and a sensing beam; a beam moving device moving the sensing beam transversely, a transmitting aperture transmitting the sensing beam out of the apparatus and projecting a beam spot at a target location, with a resolvable beam width along the beam moving direction; a receiving aperture collecting a feedback beam from the target location; a beam combining device combining at least a portion of the reference beam and at least a portion of the feedback beam to form an interferometer signal; a signal acquisition device acquiring the interferometer signal; an interferometer controlling function programming the beam moving cycles and the signal acquisition cycles, alternating a high beam moving speed period and a low beam moving speed period for multiple consecutive beam moving cycles, limiting a median beam displacement in low speed periods to less than 0.5 resolvable beam width at the target location, limiting the median beam displacement in high speed periods in the range of 0.2 to 2 resolvable beam widths, maintaining the beam displacements in high speed periods substantially along the same direction, acquiring the interferometer signal during a low beam moving speed period, and repeating the signal acquisition for at least 10 consecutive beam moving cycles; an interferometer signal processing device processing a period of acquired interferometer signal and producing a set of interferometer measurements, repeating the data processing for multiple acquired periods of signal, mapping at least 10 consecutive beam locations with corresponding interferometer measurements;

Metadata:
- Claim Count in Document: 2.0
- Percentile: 86.0
- Lexical Diversity: 1.54545
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11608683', '11354382', '15343918', '12809776', '12210656']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6943656705950784
- 35 USC 102 Novelty (BERT): 0.4669651187862282
- Combined Prediction Score: 0.6716256154141933
- Mean Citation Score: 189.838706
- Max Citation Score: 195.22594
- Similarity Product: 161.2693750638628

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