PATENT CLAIM ANALYSIS

Application Number: 16223853
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["398", "065000"]

Abstract:
An optical IQ demodulator that does not require a power-consuming DSP is disclosed. A DC offset is added to one of the I and Q optical signal components at an IQ transmitter. After mixing with an LO signal and differential detection at the receiver, this DC offset results in a heterodyne-frequency tone in each of the quadrature detection channels of the receiver. The phase of this oscillation is recovered using a PLL circuit, which output is used to separate the transmitter I and Q channels for decoding thereof using conventional electronics.

Claim (Index 33):
The method of  claim 20  wherein the QM light is polarization multiplexed using a dither signal in one polarization thereof, the method further comprising:\n splitting received QM light into two light signals of orthogonal polarizations, \n detecting the dither signal in at least one of the two light signals, and \n using the dither signal detected in the at least one of the two light signals to control the splitting of the received QM light.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 98.0
- Lexical Diversity: 1.56452
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15841789', '15459066', '15381388', '15810671', '14346789']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7074583304430498
- 35 USC 102 Novelty (BERT): 0.5809359775340456
- Combined Prediction Score: 0.6948060951521495
- Mean Citation Score: 300.5774679999999
- Max Citation Score: 475.21732
- Similarity Product: 353.56407377764936

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