PATENT CLAIM ANALYSIS

Application Number: 16503896
Application Type: Utility
Filing Date: 2019-07
Publication Date: 2019-10
Patent Classification: ["348", "308000"]

Abstract:
Pixel arrangements in time-of-flight sensors are presented that include sensing elements that establish charges related to incident light, charge storage elements that accumulate integrated charges transferred from the sensing elements, and diffusion nodes configured to establish measurement voltages representative of the integrated charges that are dumped from the charge storage elements. The pixel arrangement includes analog domain output circuitry comprising a measurement capacitance element that stores the measurement voltage, and a reset capacitance element that stores a reset voltage established at the diffusion node during a reset phase performed prior to a measurement phase. The analog domain output circuitry subtracts the stored reset voltage from the stored measurement voltage for processing into a pixel output voltage that at least partially reduces readout voltage uncertainty of the pixel arrangement.

Claim (Index 9):
A time-of-flight (ToF) imaging sensor, comprising:\n a semiconductor substrate; an array of differential pixel structures for sensing at least incident light that are each configured to produce associated reset voltages resultant from associated reset phases and associated measurement voltages resultant from associated measurement phases performed after to the associated reset phases; capacitance elements that store ones of the measurement voltages and ones of the reset voltages; and readout circuitry configured to establish compensated voltages that at least partially reduces readout voltage uncertainty for each of the differential pixel structures based at least on subtracting associated stored ones of the reset voltages from associated stored ones of the measurement voltages, and determine differential voltages among the compensated voltages for each of the differential pixel structures as pixel output voltages; wherein each of the differential pixel structures comprise:\n at least two polysilicon sensing elements configured to establish charges related to incident light during corresponding ones of the measurement phases; \n charge storage elements each configured to accumulate integrated charges based at least on ones of the charges transferred from an associated polysilicon sensing element; \n diffusion nodes each configured to produce the associated measurement voltages based at least on ones of the integrated charges dumped from an associated charge storage element, and produce the associated reset voltages established at the diffusion nodes.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 100.0
- Lexical Diversity: 2.0
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15385198', '15385373', '14950313', '14562380', '15196615']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5712850598060843
- 35 USC 102 Novelty (BERT): 0.5360856979317217
- Combined Prediction Score: 0.5677651236186482
- Mean Citation Score: 236.224242
- Max Citation Score: 364.4262
- Similarity Product: 358.7335176866055

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