PATENT CLAIM ANALYSIS

Application Number: 15908418
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["375", "258000"]

Abstract:
Various techniques are described to terminate a differential wire pair using combinations of CMCs, transformers, autotransformers, differential mode chokes (DMCs), and AC-coupling capacitors. The techniques improve the AC common mode insertion loss without attenuating the differential data signals, while easing the requirements of the CMC. In one example, an autotransformer, having a first winding, a second winding, and a center tap, is connected across a PHY, where the center tap provides a low impedance to ground for attenuating common mode noise. A CMC is coupled across the autotransformer and a pair of wires carrying differential data, where the CMC greatly attenuates common mode noise. The requirements of the CMC are reduced due to the autotransformer.

Claim (Index 1):
A system for filtering AC common mode signals from a pair of wires carrying differential data comprising:\n a physical link layer device (PHY) comprising a transceiver for differential mode data, the PHY having a first terminal and a second terminal; an autotransformer having a first winding, a second winding, and a center tap between the first winding and the second winding, the autotransformer having a third terminal coupled to the first terminal of the PHY, and a fourth terminal coupled to the second terminal of the PHY, wherein the center tap is connected through a low impedance to ground; and a common mode choke (CMC) having a fifth terminal coupled to the third terminal of the autotransformer, and a sixth terminal coupled to the fourth terminal of the autotransformer, the CMC also having a seventh terminal coupled to a first one of the wires, and an eighth terminal coupled to a second one of the wires, wherein the CMC and autotransformer significantly attenuate the transmission of common mode noise between the pair of wires and the PHY while not significantly attenuating the transmission of differential mode data signals between the pair of wires and the PHY.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 1.88732
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15653170', '15653058', '15385094', '14831102', '11279322']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4553044602370397
- 35 USC 102 Novelty (BERT): 0.5136691172917761
- Combined Prediction Score: 0.4611409259425133
- Mean Citation Score: 260.488846
- Max Citation Score: 303.13022
- Similarity Product: 254.88108172739985

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