PATENT CLAIM ANALYSIS

Application Number: 15981120
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["370", "281000"]

Abstract:
Frequency independent isolation of duplexed ports in distributed antenna systems (DASs) is disclosed. Instead of providing a duplexer in a DAS that provides frequency dependent separation between downlink and uplink communications signals, an isolation circuit is provided. The isolation circuit is coupled to a duplexed port that provides downlink communications signals to the DAS and receives uplink communications signals from the DAS. To isolate uplink communications signals from the downlink communications path, the isolation circuit includes a directional coupler. The directional coupler provides frequency independent isolation between uplink communications signals and a downlink communications path in the DAS. Further, to isolate downlink communications signals from the uplink communications path, the isolation circuit includes at least one circulator isolator. The circulator(s) acts as a one-direction device, allowing uplink communications signals to flow to the directional coupler with minimal attenuation while significantly attenuating downlink communications signals flowing from the directional coupler.

Claim (Index 3):
The WCS of  claim 2 , wherein the directional coupler is further configured to isolate the uplink communications signals received on the second coupler port from the downlink communications path of the WCS.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 93.0
- Lexical Diversity: 2.4058
- Patent Class: 370.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15131712', '14146964', '15490028', '15425389', '15975153']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6084997249143423
- 35 USC 102 Novelty (BERT): 0.6221871202946836
- Combined Prediction Score: 0.6098684644523765
- Mean Citation Score: 361.300144
- Max Citation Score: 560.41327
- Similarity Product: 532.5352984345133

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