PATENT CLAIM ANALYSIS

Application Number: 15744948
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["398", "193000"]

Abstract:
Provided are a device and method for free space coherent optical communications by means of an automatic compensation for phase noise in atmosphere using a femtosecond laser optical comb, and more particularly, a device and method for free space coherent optical communications by means of an automatic compensation for phase noise in atmosphere using a femtosecond laser optical comb, in which a phase shift value due to atmospheric turbulence is obtained from reflected light of transmission light generated from a femtosecond laser optical comb and the transmission light is pre-distorted on the basis of the phase shift value, thereby pre-compensating, in a transmission end, for phase noise due to atmospheric turbulence.

Claim (Index 1):
A device for free space coherent optical communications by means of an automatic compensation for phase noise in atmosphere using a femtosecond laser optical comb, the device comprising:\n a first light source unit outputting first laser light measuring atmospheric turbulence of a free space; a second light source unit outputting second laser light transmitting data; a modulation unit modulating the second laser light in a predetermined modulation method to generate modulated light; a compensation unit which is input with the modulated light and the first laser light and pre-distorts overlapped light to generate transmitted light; an optical transmission unit transmitting the transmitted light to a receiver through the free space; and an optical reception unit receiving reflected light that the transmitted light is reflected from the receiver and is incident, wherein the atmospheric turbulence of the free space is measured by comparing, by the compensation unit, the reflected light which is further input to the compensation unit with the first laser light.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 2.31373
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15827482', '15744921', '15725849', '15751369', '15703704']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6788484824827871
- 35 USC 102 Novelty (BERT): 0.51394367263047
- Combined Prediction Score: 0.6623580014975554
- Mean Citation Score: 248.668608
- Max Citation Score: 279.87302
- Similarity Product: 240.30255057446

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test