PATENT CLAIM ANALYSIS

Application Number: 15894467
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["330", "252000"]

Abstract:
A trans-impedance amplifier (TIA) includes a first circuit, a second circuit, and a third circuit. Both the first circuit and the second circuit are coupled to a current source, an operational amplifier, and the third circuit. The first circuit is configured to receive a first current, provide a third voltage to the third circuit, perform shape filtering on the first current, and convert the shape filtered first current to a first voltage for output. The second circuit is configured to receive a second current, provide a fourth voltage to the third circuit, perform shape filtering on the second current, and convert the shape filtered second current to a second voltage for output. The third circuit is configured to cooperate with the first circuit and the second circuit in performing shape filtering. The operational amplifier is configured to provide a small-signal virtual ground point to the first circuit.

Claim (Index 15):
A communications device, comprising a trans-impedance amplifier (TIA), wherein the TIA comprises:\n a first circuit configured to:\n receive a first current from a current source; \n provide a third voltage to a third circuit based on the first current; \n perform shape filtering on the first current; \n convert a shape filtered first current to a first voltage for output; and \n provide the first voltage to an operational amplifier; and \n a second circuit coupled to the current source, the operational amplifier, and the third circuit and configured to:\n receive a second current from the current source; \n provide a fourth voltage to the third circuit based on the second current; \n perform the shape filtering on the second current; \n convert a shape filtered second current to a second voltage for output; and \n provide the second voltage to the operational amplifier, \n wherein the first current and the second current received from the current source are two currents in a differential current, wherein each of the first circuit, the second circuit, and the third circuit comprises a passive component, wherein the third circuit coupled to the first circuit and the second circuit is configured to:\n cooperate with the first circuit to perform the shape filtering on the first current; and \n cooperate with the second circuit to perform the shape filtering on the second current according to the third voltage and the fourth voltage, and \n wherein the operational amplifier coupled to the first circuit and the second circuit is configured to:\n provide a small-signal virtual ground point to the first circuit for the first current to enter the first circuit; and \n provide a small-signal virtual ground point to the second circuit for the second current to enter the second circuit.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 88.0
- Lexical Diversity: 3.51064
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13041180', '11495813', '14887869', '10983411', '12217800']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7795489010535025
- 35 USC 102 Novelty (BERT): 0.4740500191735371
- Combined Prediction Score: 0.748999012865506
- Mean Citation Score: 200.551608
- Max Citation Score: 202.7442
- Similarity Product: 169.81950721020698

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