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 2):
The device of  claim 1 , wherein the compensation unit includes:\n an optical detection part generating a beat frequency by synthesizing a component of the reflected light corresponding to the same optical frequency as the first laser light with the first laser light, and converting the beat frequency into an electrical signal; a measurement part including a frequency oscillator, and measuring the atmospheric turbulence by synthesizing the electrical signal with a radio frequency signal generated from the frequency oscillator using a heterodyning method and passing the synthesized signal through a low pass filter; and a pre-distortion part distorting a phase or a frequency of the overlapped light based on the measured atmospheric turbulence to generate the transmitted light.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 2.31373
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15827482', '15744921', '15725849', '15751369', '15703704']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7033052540645127
- 35 USC 102 Novelty (BERT): 0.5219493685324992
- Combined Prediction Score: 0.6851696655113114
- Mean Citation Score: 248.668608
- Max Citation Score: 279.87302
- Similarity Product: 217.9207876036036

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

Dataset: test