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 1):
A free space optical communication system comprising at least one transmitting unit and at least one receiving unit, wherein:\n said transmitting unit transmits at least one incident laser beam aberrated using plurality of orthogonal modes and at least one user data, said transmitting unit comprises:\n at least one light modulator displaying binary holograms and configured to:\n encode using alternate polarity of said user data shifted to ternary number, said incident laser beam at two or more consecutive instants of time; \n generate, at least one data encoded laser beam; and thereby transmit said data encoded laser beam to said receiving unit; \n wherein, said user data in said data encoded laser beam is indicative of amplitudes relative to time of said orthogonal modes; \n \n said receiving unit communicably coupled to said transmitting unit, receives said data encoded laser beam as one or more input laser beams, wherein said receiving unit comprises:\n at least one wavefront sensor, adapted to:\n detect the presence of aberration in said input laser beam; \n generate, 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; and \n transmit said first and second aberration sensor output \n \n signals or said aberration sensor output signal, to a data processing unit for subsequent processing; said data processing unit operably coupled to said wavefront sensor and configured to:\n determine, said amplitudes of said orthogonal modes, using, a difference between said first and second aberration sensor output signals or said aberration sensor output signal; and thereby decode said user data, using said amplitudes of said orthogonal modes.

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): 0.67398748454061
- 35 USC 102 Novelty (BERT): 0.4992918018400216
- Combined Prediction Score: 0.6565179162705511
- Mean Citation Score: 203.258938
- Max Citation Score: 218.0155
- Similarity Product: 169.7765173817277

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