PATENT CLAIM ANALYSIS

Application Number: 15745142
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-01
Patent Classification: ["398", "118000"]

Abstract:
The present invention provides a free space optical communication system that uses orthogonal modes of aberration in a laser beam as means for encoding the information. The system comprises a transmission station which transmits the user defined information in terms of the amplitudes of certain orthogonal aberration modes present in the transmitted beam. The beam then travels through free space before it reaches the receiving station. The receiving station comprises a high speed wavefront sensor of light beams. The wavefront sensor measures the amplitudes of various orthogonal aberration modes present in the incident beam at different instants of time. The amplitudes of the orthogonal modes at a certain regular time interval are then used to extract the user information.

Claim (Index 27):
A method for communicating at least one user data from at least one transmitter to at least one receiver in an optical communication system, said method comprising:\n generating, by a laser generating means in said transmitting unit, at least one incident laser beam; collimating, by two or more collimating lens, said incident laser beam; incidence, said incident laser beam on at least one light modulator; generating, by said light modulator displaying at least one hologram, at least one diffracted laser beam having plurality of orthogonal aberration modes; encoding, by said light modulator, said diffracted beam of said incident laser beam with a digital order of said user data at consecutive instants of time; and thereby generating at least one data encoded laser beam, wherein said user data is indicative of amplitudes in said orthogonal aberration modes; transmitting, through an atmospheric or free space optical path or at least two lenses positioned in said atmospheric or free space optical path, said data encoded laser beam to said receiver unit; receiving, by a wavefront sensor in said receiver unit, said data encoded laser beam as one or more input beams; detecting, by said wavefront sensor, presence of aberration in said input beams; generating, by multiplex hologram in said wavefront sensor, at least one first and second aberration sensor output signals, in the case of the modal wavefront sensor, or only one aberration sensor output signal in the case of the zonal wavefront sensor, corresponding to each input laser beam; transmitting, by at least one communication means, said first and second sensor output signals or said sensor output signal, from said wavefront sensor to a data processing unit for subsequent processing; receiving, at said data processing unit, said first and second sensor output signals or said sensor output signal, and thereby determining, said amplitudes of said orthogonal aberration modes; decoding, by said amplitudes of said orthogonal modes, said user data.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 1.98413
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11138727', '10897236', '15821918', '12716730', '14349093']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6742439963978353
- 35 USC 102 Novelty (BERT): 0.4980873178231472
- Combined Prediction Score: 0.6566283285403665
- Mean Citation Score: 203.258938
- Max Citation Score: 218.0155
- Similarity Product: 171.97287473890182

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