PATENT CLAIM ANALYSIS

Application Number: 15961619
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["347", "261000"]

Abstract:
An image forming apparatus including: a light source configured to emit a light beam; a rotary polygon mirror including a plurality of reflection surfaces each configured to deflect the light beam emitted by the light source so that the light beam scans a surface of a photosensitive member; a light receiving portion configured to output a light receiving signal by receiving the light beam reflected by each of the plurality of reflection surfaces; a conversion unit configured to convert the light receiving signal to a pulse signal; a measurement unit configured to measure pulse widths of a plurality of pulse signals corresponding to the plurality of reflection surfaces, respectively; and an identification unit configured to identify a rotation phase of the rotary polygon mirror based on a measurement result of the measurement unit and reference values to be compared with the measurement result.

Claim (Index 9):
An image forming apparatus comprising:\n a light source configured to emit a plurality of light beams; a rotary polygon mirror including a plurality of reflection surfaces each configured to deflect the plurality of light beams emitted by the light source so that the plurality of light beams scan a surface of a photosensitive member; a light receiving portion configured to output a plurality of light receiving signals by receiving the plurality of light beams reflected by each of the plurality of reflection surfaces; a conversion unit configured to convert the plurality of light receiving signals to a plurality of pulse signals; a changeover unit configured to change over between a measurement valid interval and a measurement invalid interval; and a measurement unit configured to measure a pulse width of a pulse signal in the measurement valid interval among the plurality of pulse signals corresponding to the plurality of reflection surfaces, respectively; and an identification unit configured to identify a rotation phase of the rotary polygon mirror based on a measurement result of the measurement unit and reference values to be compared with the measurement result.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 91.0
- Lexical Diversity: 2.39683
- Patent Class: 347.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15466582', '14682850', '15119673', '15842490', '15674415']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7335707928931322
- 35 USC 102 Novelty (BERT): 0.50614152297749
- Combined Prediction Score: 0.710827865901568
- Mean Citation Score: 274.077348
- Max Citation Score: 301.56122
- Similarity Product: 268.4896890415156

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