PATENT CLAIM ANALYSIS

Application Number: 16141671
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-07
Patent Classification: ["341", "110000"]

Abstract:
System and methods for input path matching in pipelined continuous-time Analog-to Digital Converters (ADCs), including pipelined Continuous-Time Delta Sigma Modulator (CTDSM) based ADCs, includes an input delay circuit disposed in a continuous-time input path from an input of an analog input signal to a first summing circuit of the continuous-time ADC. At least one digital delay line is disposed between an output of an earlier stage sub-ADC (of a plurality of pipelined sub-ADCs) and a sub-digital-to-analog converter (DAC) that is coupled to the first summing circuit, and between the earlier stage sub-ADC and a digital noise cancellation filter. The digital delay line(s) is configured to enable calibration of delay of output of the earlier stage sub-ADC provided to the sub-DAC and the digital noise cancellation filter in accordance with process variations of the input delay match circuit to minimize residue output at first summing circuit.

Claim (Index 13):
A method comprising:\n comparing magnitude and phase of a signal path of a first stage sub-analog-to-digital converter (sub-ADC) in a pipelined continuous-time analog-to-digital converter (CT ADC) with magnitude and phase of a continuous-time signal path of the pipelined CT ADC to generate a residue magnitude and phase, the continuous-time signal path comprising an input delay circuit, the residue magnitude and phase generated by a first summing circuit; and varying a delay value of at least one digital delay circuit coupled to receive an output of the first stage sub-ADC and coupled to each of the first summing circuit and an output second summing circuit, the output summing circuit coupled to the at least one digital delay circuit, and an output of a final stage sub-ADC.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 97.0
- Lexical Diversity: 2.13158
- Patent Class: 341.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15455971', '15068231', '15440612', '14475852', '15935045']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5890863546979577
- 35 USC 102 Novelty (BERT): 0.6454224168540322
- Combined Prediction Score: 0.5947199609135652
- Mean Citation Score: 412.63327999999984
- Max Citation Score: 598.2193599999998
- Similarity Product: 568.1370546536442

Labels:
- Claim Label 101: 0
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 0

Dataset: test