PATENT CLAIM ANALYSIS

Application Number: 15991633
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-02
Patent Classification: ["380", "044000"]

Abstract:
A cryptographic key generator for a first optical transceiver includes a photodetector that receives a continuous wave light beam received via an optical channel from a second optical transceiver. The generator samples and quantizes signals from the photodetector during a plurality of intervals to generate respective samples representing respective numbers of photons incident on the photod.etector during each of the plurality of intervals. The generator creates a first cryptographic key from the plurality of digital values. The second optical transceiver receives a continuous wave light beam from the first transceiver and performs the same functions to create a second cryptographic key. Due to the reciprocal nature of the channels, the first and second cryptographic keys match.

Claim (Index 20):
The apparatus of  claim 19 , wherein the light beam has respectively different power levels during predetermined intervals of the plurality of intervals and the apparatus further comprises:\n means for selecting respective thresholds for use during each predetermined interval; and the means for generating the ciyptographic key comprises means for selecting ones of the plurality of digital values having magnitudes greater than the selected threshold value during each predetermined interval.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 93.0
- Lexical Diversity: 2.10345
- Patent Class: 380.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15508061', '11881121', '12331119', '15574667', '10797849']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3626093007496624
- 35 USC 102 Novelty (BERT): 0.4791836836933253
- Combined Prediction Score: 0.3742667390440287
- Mean Citation Score: 120.4066742
- Max Citation Score: 134.76772
- Similarity Product: 91.49205442419527

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

Dataset: test