PATENT CLAIM ANALYSIS

Application Number: 15754919
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-09
Patent Classification: ["398", "177000"]

Abstract:
Disclosed is a scheme of transmitting at least two or more transmission signals, in which at least two or more pure random noise signals are contained, through multiple paths, according to one embodiment of the present invention. To implement such a scheme, a complementary noise generator may be used in a high-speed communication method and system with enhanced security according to the present invention. Here, the complementary noise generator refers to an apparatus in which a total sum of summing altogether at least two or more generated noises becomes 0. Namely, the complementary noise generator can generate m noises, and the sum of the in noises becomes 0. By injecting a plurality of noises having such feature into different paths, a channel capacity of each channel is reduced, thereby making a single wiretapping difficult. In comparison, because a receiver receiving a plurality of transmission signals with injected noises receives all noise signals and then sums up the noise signals, the noises are offset, and it is possible to effectively receive the original signal (random key K) intended for transmitting by a transmitter.

Claim (Index 1):
An apparatus for high speed communication with perfect secrecy disposed with an OTDR (Optical Time Domain Reflectometer) increased in sensitivity, wherein the sensitivity-increased OTDR includes:\n a first light source applying a first optical pulse to an optical communication path; a coupler outputting the first optical pulse by dividing the first optical pulse at least more than two paths; a photodetector determining a point applied with the first optical pulse on the optical communication path; a second light source applying a second optical pulse to an optical communication path weaker in intensity than that of the first optical pulse in response to a point applied with the first optical pulse to the optical communication path; an optical receiver receiving an optical signal returning by being reflected from the optical communication path; and. a controller analyzing or predicting a signal leakage of the optical communication path based on a result detected from the optical receiver.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 94.0
- Lexical Diversity: 1.90566
- Patent Class: 398.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10674241', '11505814', '11350086', '12242237', '14338034']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6774674062376673
- 35 USC 102 Novelty (BERT): 0.5044377413311565
- Combined Prediction Score: 0.6601644397470162
- Mean Citation Score: 172.25590800000003
- Max Citation Score: 180.33176
- Similarity Product: 122.66606660835266

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