PATENT CLAIM ANALYSIS

Application Number: 15769720
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["356", "342000"]

Abstract:
Methods, systems, and devices for particle characterization by optical phase modulation and detection of aerosol backscattering. In some aspects, a compact and cost effective particle detector device to measure the aerosol density and its size distribution by backscattered focusing using projected optical modified field distribution imaging into the aerosol medium (air). The disclosed device can be used in a variety of scientific and industrial applications, e.g., such as a particle sensor for automobiles able to detect harmful pollution which may then be filtered from the car cabin, or warnings provided to the driver. The device can also capture and store data, enabling detailed pollution maps of various roadways in real-time.

Claim (Index 1):
A method for characterizing particulates in an aerosol medium, comprising:\n emitting a light beam into an optical circuit to split the light beam into a signal beam and a reference beam; modifying the optical phase of the signal beam by a spatial light modulator including a zone plate of the optical circuit to form a phase-modified optical signal; projecting the phase-modified optical signal by a lens into an aerosol medium to form a an optical field distribution pattern, wherein the projected optical field distribution pattern illuminates the aerosol medium such that back scattered light constructively add together in phase or interfere forming an enhanced back scattered signal that includes a concentrated optical spot at an optical detector; amplifying the enhanced back scattered signal by homodyne or heterodyne detection by interfering the back scattered light with the reference beam at the optical detector; and measuring a physical property of particles in the aerosol medium based on the detected back scattered light.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 91.0
- Lexical Diversity: 1.44706
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12187827', '12683154', '10916737', '13134959', '11281621']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6840791329347807
- 35 USC 102 Novelty (BERT): 0.4660192451913471
- Combined Prediction Score: 0.6622731441604374
- Mean Citation Score: 160.545354
- Max Citation Score: 170.6924
- Similarity Product: 132.44686772141458

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