PATENT CLAIM ANALYSIS

Application Number: 15873057
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["348", "308000"]

Abstract:
Provided are image sensors. An image sensor includes a pixel array comprising pixels configured to output signal voltages, each of the pixels comprising first and second photodiodes, first and second transfer transistors connected to the first and second photodiodes, respectively, and a floating diffusion node to which the first and second transfer transistors are connected; a ramp voltage generator configured to generate a ramp voltage that decreases with a slope according to a ramp clock to have a first gain; a correlation double sampler (CDS) configured to compare the ramp voltage with the signal voltages to output a comparison signal; a counter configured to count the comparison signal according to a counter clock to output a digital signal; and a digital scaling unit configured to scale the digital signal to have a second gain.

Claim (Index 16):
An image sensor comprising:\n a pixel array including pixels configured to output signal voltages, each of the pixels including a first sub-pixel and a second sub-pixel sharing a floating diffusion node, a reset transistor and a drive transistor, the first sub-pixel including a first photodiode, a second photodiode, a first transfer transistor and a second transfer transistor, the first transfer transistor being between the first photodiode and the floating diffusion node, and the second transfer transistor being between the second photodiode and the floating diffusion node, the second sub-pixel including a third photodiode, a fourth photodiode, a third transfer transistor and a fourth transfer transistor, the third transfer transistor being between the third photodiode and the floating diffusion node, and the fourth transfer transistor between the fourth photodiode and the floating diffusion node; a ramp voltage generator configured to generate a ramp voltage having a first gain such that the ramp voltage decreases with a slope according to a ramp clock; a correlated double sampler (CDS) configured to compare the ramp voltage with the signal voltages to output a comparison signal; a counter configured to count the comparison signal according to a counter clock to output a digital signal; a digital scaler configured to scale the digital signal such that the digital signal has a second gain; and a gain controller configured to control the first gain and the second gain to derive user gains associated with respective ones of a plurality of operation modes, the user gains each being a product of the first gain and the second gain, the plurality of operation modes including a first operation mode, a second operation mode and a third operation mode requiring the user gains of x1, x2 and x4, respectively such that the first gain in the first operation mode is equal to the first gain in the second operation mode and the second gain in the first operation mode is equal to half the second gain in the second operation mode.

Metadata:
- Claim Count in Document: 34.0
- Percentile: 86.0
- Lexical Diversity: 2.39344
- Patent Class: 348.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12828478', '14813202', '11874404', '14934718', '14527049']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5849823971924129
- 35 USC 102 Novelty (BERT): 0.49666437437543
- Combined Prediction Score: 0.5761505949107145
- Mean Citation Score: 218.39601
- Max Citation Score: 230.53568
- Similarity Product: 170.90276093368533

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