PATENT CLAIM ANALYSIS

Application Number: 15927151
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["358", "474000"]

Abstract:
An image forming apparatus includes: an image former that forms a document image including a correction image; an image reader; and a calibrator, and performing correction, wherein the document image is designed so that main register marks and a subsidiary register mark are provided, and the calibrator includes a four-corner detector that detects four corners of a sheet of paper, a main register mark reference position detector that detects reference positions of the main register marks, a subsidiary register mark prediction position determiner that predicts and determines prediction positions of the subsidiary register marks, a subsidiary register mark reference position detector that detects a reference position of the subsidiary register mark, a correction image prediction position determiner that predicts and determines a prediction position of the correction image, a measured value obtainer, and a correction value calculator.

Claim (Index 9):
A calibration method of an image forming apparatus that forms a document image including a correction image related to a predetermined correction function on a sheet of paper based on document image data and that reads a sheet surface on which the document image is formed and generates read image data, the method comprising:\n calculating a correction value related to the predetermined correction function based on the read image data, and performing correction related to the predetermined correction function based on the calculated correction value, wherein the document image is designed so that main register marks are provided near four corners of the document image and a subsidiary register mark is provided near the correction image, detecting four corners of the sheet in the read image data; detecting reference positions of the main register marks in a vicinity of the detected four corners; predicting a position of the subsidiary register mark in the read image data according to the detected reference positions of the main register marks and the reference positions of the main register marks in the document image data and determining a prediction position of the subsidiary register mark; detecting a reference position of the subsidiary register mark in a vicinity of the prediction position of the subsidiary register mark; predicting a position of a correction image in the read image data according to the detected reference position of the subsidiary register mark and the reference position of the subsidiary register mark in the document image data and determining a prediction position of the correction image; obtaining a measurement value of the correction image based on the prediction position of the correction image; and calculating a correction value based on the measurement value.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.88462
- Patent Class: 358.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11713511', '14964489', '12042719', '14923462', '10880510']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4577755673285655
- 35 USC 102 Novelty (BERT): 0.4834274215414673
- Combined Prediction Score: 0.4603407527498557
- Mean Citation Score: 197.654148
- Max Citation Score: 207.52127
- Similarity Product: 170.19612416373013

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