PATENT CLAIM ANALYSIS

Application Number: 16161711
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["355", "072000"]

Abstract:
There is provided an encoder device to measure a relative moving amount between first and second members. The encoder device includes: a reflective-type diffraction grating on the first member; a light source unit to radiate a measuring light; a first optical member on the second member; a first and second reflecting units on the second member that cause first and third diffracted lights generated via diffraction of the measuring light and having orders different from each other to come into the diffraction grating respectively, and cause second and fourth diffracted lights generated via diffraction of the first and third diffracted lights respectively to come into the first optical member; photo-detectors configured to detect interference lights between two diffracted lights and other light beam respectively; and a measuring unit to obtain the relative moving amount by using detection signals from the photo-detectors.

Claim (Index 9):
An encoder devise which measures a relative moving amount between a first member and a second member, the encoder devise comprising:\n a light source configured to generate a measuring light and a reference light; a reflection-type diffraction grating which is provided on the first member and which includes a grating pattern having a periodic direction in at least a first direction; an optical system as defined in  claim 1 ; and a light receiving unit configured to receive a light emitted from the optical system.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 97.0
- Lexical Diversity: 2.27273
- Patent Class: 355.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15964230', '14397312', '13678857', '15919519', '14401860']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7505830825769746
- 35 USC 102 Novelty (BERT): 0.5562401004863907
- Combined Prediction Score: 0.7311487843679162
- Mean Citation Score: 373.351728
- Max Citation Score: 450.28906
- Similarity Product: 426.2179747816575

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