PATENT CLAIM ANALYSIS

Application Number: 15939375
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["358", "497000"]

Abstract:
An image reading device including a contact glass; a reading unit; a pressure plate; a pressure-plate opening/closing sensor, and circuitry. The circuitry determines a presence or absence of external light input to a space between the pressure plate and the surface of the contact glass based on image data obtained by the reading unit when the light source is turned off; compares read data according to light emitted from the light source and received by the image sensor when the pressure plate is closed, with read data of a reference value obtained when the pressure plate is completely closed, to obtain a difference and determine a state of the read data based on the difference; and determines whether the pressure plate is open or closed based on a determination result of the presence or absence of external light and on the difference.

Claim (Index 4):
A method of detecting opening/closing of pressure-plate, used for an image reading device including\n a contact glass having a surface on which a document is disposed or along which the document moves, a reading unit including a light source configured to emit light to the document on the surface of the contact glass and an image sensor configured to receive the light reflected by the document, the reading unit configured to obtain image data according to the light received by the image sensor, a pressure plate moveable between a posture where the surface of the contact glass is closed and a posture where the surface of the contact glass is opened, and a pressure-plate opening/closing sensor configured to detect whether the pressure plate is closed, the method comprising: determining a presence or absence of external light input to a space between the pressure plate and the surface of the contact glass based on image data obtained by the reading unit when the light source is turned off; comparing read data of the light emitted from the light source and received by the image sensor when the pressure plate is closed, with reference read data of the light emitted from the light source and received by the image sensor when the pressure plate is completely closed, to determine a difference between the read data and the reference read data; and determining whether the pressure plate is open or closed based on the presence or absence of the external light and the difference.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 90.0
- Lexical Diversity: 2.45161
- Patent Class: 358.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14938339', '13970981', '11380722', '14754208', '11380604']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.505315854914209
- 35 USC 102 Novelty (BERT): 0.4760315879505026
- Combined Prediction Score: 0.5023874282178384
- Mean Citation Score: 194.246788
- Max Citation Score: 202.04707
- Similarity Product: 163.13888361531673

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

Dataset: test