PATENT CLAIM ANALYSIS

Application Number: 15868128
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["348", "294000"]

Abstract:
A solid-state imaging device which, in a voltage mode, simultaneously samples the pixel signal in all the pixels in a signal holding part serving as the pixel signal storage part, reads converted signals corresponding to readout signals held in a first signal holding capacitor and a second signal holding capacitor to a first signal line, reads converted signals corresponding to readout reset signals simultaneously in parallel to the second signal line, and supplies the same as a differential signal to a column readout circuit. Due to this, a sufficiently low parasitic light sensitivity corresponding to the application can be realized, settling error can be suppressed, and pixel fixed pattern noise can be reduced.

Claim (Index 12):
A method for driving a solid-state imaging device having\n a pixel portion in which are arranged pixels including photoelectric conversion reading parts and signal holding parts, a readout portion for reading pixel signals from the pixel portion, a first signal line and a second signal line to which held signals of the signal holding part are output, wherein a pixel signal read out from a pixel is a pixel signal including at least a readout signal and a readout reset signal, a photoelectric conversion reading part of the pixel includes at least an output node, a photoelectric conversion element which stores a charge generated by photoelectric conversion in a storage period, a transfer element capable of transferring the charge stored in the photoelectric conversion element in a transfer period, a floating diffusion to which a charge stored in the photoelectric conversion element is transferred through the transfer element, a first source-follower element which converts the charge of the floating diffusion to a voltage signal corresponding to the charge amount and outputs the converted signal to the output node, and a reset element which resets the floating diffusion to a predetermined potential in a reset period, and a signal holding part includes an input node, a first signal holding capacitor capable of holding a readout signal output from the output node of the photoelectric conversion reading part of the pixel and input to the input node, a second signal holding capacitor capable of holding a readout reset signal output from the output node of the photoelectric conversion reading part of the pixel and input to the input node, a first switch element which selectively connects the first signal holding capacitor with the output node of the photoelectric conversion reading part, a second switch element which selectively connects the second signal holding capacitor with the output node of the photoelectric conversion reading part, a first output part including a second source-follower element which outputs a signal held in the first signal holding capacitor in accordance with a held voltage and selectively outputting the converted signal to the first signal line, and a second output part including a third source-follower element which outputs a signal held in the second signal holding capacitor in accordance with a held voltage and selectively outputting the converted signal to the second signal line, the method for driving a solid-state imaging device comprising when reading a pixel signal of a pixel, connecting a drain side of the first source-follower element to a power supply potential, when reading a readout signal as a pixel signal from a pixel, making the first switch element of the signal holding part conductive for a predetermined period and holding the readout signal in the first signal holding capacitor, when reading a readout reset signal as a pixel signal from a pixel, making the second switch element of the signal holding part conductive for another predetermined period and holding the readout reset signal in the second signal holding capacitor, in a state in which the first switch element and the second switch element are held in a non-conductive state, reading the converted signal corresponding to the readout signal to the first signal line by the first output part and reading the converted signal corresponding to the readout reset signal simultaneously in parallel to the second signal line by the second output part.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 2.05
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15718265', '15678356', '15185882', '15637519', '15290550']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6796992946573605
- 35 USC 102 Novelty (BERT): 0.5707635308069491
- Combined Prediction Score: 0.6688057182723194
- Mean Citation Score: 376.518968
- Max Citation Score: 470.1
- Similarity Product: 415.8113642334938

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

Dataset: test