PATENT CLAIM ANALYSIS

Application Number: 16201440
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["375", "329000"]

Abstract:
An electrical circuit and method for de-modulation and carrier recovery of PSK modulated carrier signals in analog domain are described. A portion of the received PSK-modulated carrier signal is passed through a signal multiplication circuit to obtain a frequency-multiplied carrier that is absent of the PSK modulation, which is then passed through a frequency dividing circuit to obtain a reference carrier at the received carrier frequency. The reference signal is then mixed with the received PSK-modulated carrier signal to obtain a de-modulated baseband signal. The method may be used in heterodyne receivers of optical BPSK and QPSK signals.

Claim (Index 22):
The method of  claim 21  wherein the multiplying comprises directing the first PSK signal into two input ports of an electrical signal mixer to obtain a frequency-doubled signal.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 98.0
- Lexical Diversity: 1.83929
- Patent Class: 375.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15357392', '11204607', '14578756', '10207857', '11562030']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5088770763534735
- 35 USC 102 Novelty (BERT): 0.5883281368620309
- Combined Prediction Score: 0.5168221824043292
- Mean Citation Score: 285.681432
- Max Citation Score: 546.60095
- Similarity Product: 407.8781712134541

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