PATENT CLAIM ANALYSIS

Application Number: 16052890
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-09
Patent Classification: ["341", "143000"]

Abstract:
A dither is an uncorrelated signal, usually pseudo-random noise injected into the input of an ADC such that a given input value of the wanted signal becomes spread over a plurality of codes. This reduces the effect of DNL and also smooths the integral non-linearity (INL) response of the ADC. The advantages of introducing dither could be obtained without having to perturb the signal input to the ADC. This avoids the introduction of additional components in the ADC. The dither can be applied to the components used to form a residue of the ADC stage within a pipelined converter. For example, a dither can be applied solely to a DAC part or different dithers can be applied to a ADC and DAC parts respectively. This allows greater flexibility of linearization of the ADC response and the formation of an analog residue by the DAC.

Claim (Index 1):
A method of operating a residue forming stage of an analog to digital converter, the residue forming stage comprising an analog to digital converter and a first sampling digital to analog converter, and the analog to digital converter of the residue forming stage has a least significant bit value, the method comprising:\n receiving an input signal, adding a first dither value to the input signal to form a dithered input signal sampled by the first sampling digital to analog converter but the first dither value is not added to the input signal provided to the analog to digital converter of the residue forming stage, using the analog to digital converter of the residue forming stage to form a digital code, modifying the digital code by a digital value related to at least part of the first dither value to form a modified digital code, and providing the modified digital code to the first sampling digital to analog converter.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 1.89024
- Patent Class: 341.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15170051', '16053455', '14162559', '15975885', '14162572']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6383355885469666
- 35 USC 102 Novelty (BERT): 0.5233747771533716
- Combined Prediction Score: 0.6268395074076071
- Mean Citation Score: 294.76665
- Max Citation Score: 306.63547
- Similarity Product: 212.85546217379328

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