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 15):
A method of operating a time-of-flight (ToF) imaging pixel arrangement formed on a semiconductor substrate, the method comprising:\n at least two polysilicon sensing elements of a differential pixel structure each establishing charges related to incident light during corresponding differential measurement phases; charge storage elements each accumulating integrated charges transferred from an associated polysilicon sensing element; diffusion nodes each establishing measurement voltages based at least on ones of the integrated charges dumped from an associated charge storage element; first capacitance elements each storing reset voltages established at associated ones of the diffusion nodes prior to transfer of the ones of the integrated charges to the associated ones of the diffusion nodes; second capacitance elements each storing the measurement voltages established at the associated ones of the diffusion nodes after transfer of the ones of the integrated charges to the associated ones of the diffusion nodes; analog output circuitry subtracting corresponding ones of the reset voltages stored in the first capacitance elements from ones of the measurement voltages stored in the second capacitance elements to establish compensated results that at least partially cancel readout voltage uncertainty of the pixel arrangement corresponding to each of the differential measurement phases; and the analog output circuitry determining differential voltages among the compensated results to establish pixel output voltages.

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): 0.571457623511897
- 35 USC 102 Novelty (BERT): 0.5362140692939419
- Combined Prediction Score: 0.5679332680901015
- Mean Citation Score: 236.224242
- Max Citation Score: 364.4262
- Similarity Product: 350.64866893869635

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