PATENT CLAIM ANALYSIS

Application Number: 16158916
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-04
Patent Classification: ["341", "161000"]

Abstract:
A sample-and-hold amplifier includes: a switched capacitor network for conducting a sample -and-hold operation on an input signal to generate a first signal; and an operational amplifier coupled with the switched capacitor network and including multiple candidate capacitors; wherein the operational amplifier is arranged to operably generate an output signal based on the first signal, and to operably switch coupling relationship of the multiple candidate capacitors based on the magnitude of the input signal, so that only a portion of the multiple candidate capacitors could be participated in the generation of the output signal at a time.

Claim (Index 2):
The sample-and-hold amplifier ( 700 ) of  claim 1 , wherein the operational amplifier ( 100 ) comprises:\n a first gain stage ( 110 ) coupled with the switched capacitor network ( 702 ) arranged to operably generate a second signal (N 2 ) according to the first signal (N 1 ); a second gain stage ( 120 ) coupled with the first gain stage ( 110 ), and arranged to operably generate an output signal (Vout) according to the second signal (N 2 ); a first candidate capacitor ( 131 ); a second candidate capacitor ( 133 ); a third candidate capacitor ( 135 ); a first switch ( 141 ) coupled with a first terminal of the first candidate capacitor ( 131 ), and arranged to selectively couple the first candidate capacitor ( 131 ) to a first predetermined voltage (Vcm) or an input terminal of the second gain stage ( 120 ); a second switch ( 142 ) coupled with a second terminal of the first candidate capacitor ( 131 ), and arranged to selectively couple the first candidate capacitor ( 131 ) to a first voltage (V 1 ) or an output terminal of the second gain stage ( 120 ); a third switch ( 143 ) coupled with a first terminal of the second candidate capacitor ( 133 ), and arranged to selectively couple the second candidate capacitor ( 133 ) to the first predetermined voltage (Vcm) or the input terminal of the second gain stage ( 120 ); a fourth switch ( 144 ) coupled with a second terminal of the second candidate capacitor ( 133 ), and arranged to selectively couple the second candidate capacitor ( 133 ) to a second voltage (V 2 ) or the output terminal of the second gain stage ( 120 ); a fifth switch ( 145 ) coupled with a first terminal of the third candidate capacitor ( 135 ), and arranged to selectively couple the third candidate capacitor ( 135 ) to the first predetermined voltage (Vcm) or the input terminal of the second gain stage ( 120 ); a sixth switch ( 146 ) coupled with a second terminal of the third candidate capacitor ( 135 ), and arranged to selectively couple the third candidate capacitor ( 135 ) to a third voltage (V 3 ) or the output terminal of the second gain stage ( 120 ); and a capacitor selection circuit ( 170 ) coupled with the prior stage circuit ( 102 ) and the first through the sixth switches ( 141 - 146 ), and arranged to operably control the first through the sixth switches ( 141 - 146 ) based on a magnitude of the input signal (Vin), so that only part of the first through the third candidate capacitors ( 131 - 135 ) can be coupled to the second gain stage ( 120 ) at the same time.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 1.87273
- Patent Class: 341.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16158948', '16158740', '15946770', '15983292', '14158299']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5695448029234412
- 35 USC 102 Novelty (BERT): 0.5385474474514845
- Combined Prediction Score: 0.5664450673762456
- Mean Citation Score: 245.950034
- Max Citation Score: 340.4825
- Similarity Product: 262.1955875912309

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