PATENT CLAIM ANALYSIS

Application Number: 15748813
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["330", "253000"]

Abstract:
The present invention relates to a novel and inventive compound device structure for a low noise current amplifier or trans-impedance amplifier. The trans-impedance amplifier includes an amplifier portion, which converts current input into voltage using a complimentary pair of novel n-type and p-type current field-effect transistors (NiFET and PiFET) and a bias generation portion using another complimentary pair of NiFET and PiFET. Trans-impedance of NiFET and PiFET and its gain may be configured and programmed by a ratio of width (W) over length (L) of source channel over the width (W) over length (L) of drain channel (W/L of source channel/W/L of drain channel).

Claim (Index 14):
A gain controllable trans-impedance amplifier, comprising:\n a. a positive current input terminal, and a negative current input terminal, b. a positive voltage output terminal, and a negative voltage output terminal; c. a bias output terminal; d. a first complementary pair of a first n-type current field-effect transistor (NiFET) and a first p-type current field-effect transistor (PiFET); e. a second complementary pair of a second NiFET and a second PiFET; and f. a third complementary pair of a third NiFET and a third PiFET; wherein each of said NiFETs and PiFETs comprises: a source terminal, a drain terminal, a gate terminal, and a diffusion terminal of said corresponding conductivity type of said each of PiFET and NiFET, defining a source channel between said source terminal and said diffusion terminal, and a drain channel between said drain terminal and said diffusion terminal, said diffusion terminal causes changes in said diffused charge density throughout said source and drain channels, and said gate terminal is capacitively coupled to said source channel and said drain channel; wherein said gate terminal of said PiFET and said gate terminal of said NiFET are connected together to form a common gate terminal for said each complimentary pair, said source terminal of said NiFET of said each complimentary pair is connected to negative power supply and said source terminal of said PiFET of said each pair is connected to positive power supply, and drain terminals of said NiFET and said PiFET of said each complimentary pair are connected together to form an output; and wherein said diffusion terminal of said third NiFET receives said negative current input terminal; said diffusion terminal of said first NiFET receives said positive current input terminal; said common gate of said first complimentary pair, said common gate of said second complementary pair and said common gate of said third complementary pair are connected with said output of said second complementary pair for said bias voltage output terminal; said output terminal of said first complementary pair is connected to said positive voltage output terminal; said output terminal of said third complementary pair is connected to said negative voltage output terminal; wherein said gain controllable trans-impedance amplifier further comprises gain control switch for selectively connecting said negative voltage supply to said diffusion terminals of said first, second and third PiFETs.

Metadata:
- Claim Count in Document: 18.0
- Percentile: 86.0
- Lexical Diversity: 1.875
- Patent Class: 330.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15748866', '15748497', '15748908', '15748305', '15545200']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8151536794375883
- 35 USC 102 Novelty (BERT): 0.6307923983289462
- Combined Prediction Score: 0.7967175513267242
- Mean Citation Score: 502.954216
- Max Citation Score: 600.7884
- Similarity Product: 529.3485351375103

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

Dataset: test