PATENT CLAIM ANALYSIS

Application Number: 16034071
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["330", "256000"]

Abstract:
An amplifier circuit can have a differential input. A common-mode signal present at the differential input can induce an offset voltage at an output of the amplifier circuit. A compensation can be performed to reduce or eliminate such an offset, such as at a first temperature. Circuits and techniques for drift correction can be performed, such as to correct for residual offset error across an entirety of a specified operation temperature range. In an example, first and second drift correction signal generator circuits can be used, such as to provide signals proportional to a common mode voltage, but having different temperature coefficients.

Claim (Index 1):
An electronic circuit to provide output voltage offset compensation including correction for drift across an operating temperature range, the electronic circuit comprising:\n an amplifier circuit comprising a differential input; a first drift correction signal generator configured to provide a first drift correction signal proportional to a common mode input signal provided to the amplifier circuit, the first error correction signal having a first temperature coefficient; a second drift correction signal generator configured to provide a second drift correction signal proportional to the common mode input signal, the second error correction signal having a different second temperature coefficient; and an injection circuit to couple the first and second drift correction signals to the amplifier circuit to provide the output voltage offset compensation; wherein the injection circuit is configured to apply representations of the first and second drift correction signals having a specified polarity selectable in response to a slope of an output offset voltage versus the common mode input signal.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 95.0
- Lexical Diversity: 1.80645
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11524197', '10716039', '15934467', '11006193', '10748509']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7769674917460367
- 35 USC 102 Novelty (BERT): 0.4755603073511701
- Combined Prediction Score: 0.7468267733065501
- Mean Citation Score: 197.469052
- Max Citation Score: 206.36447
- Similarity Product: 170.43148711931352

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