PATENT CLAIM ANALYSIS

Application Number: 15963343
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-01
Patent Classification: ["348", "745000"]

Abstract:
A screen, a projection system and a focusing method are provided. The screen is used for presenting a projected image and it includes a screen body, a photosensitive detector and a processor. The photosensitive detector is on a projection surface of the screen body for collecting a gray level of the image presented on the screen body. The processor is for obtaining description information of the image according to the gray level of the image collected by the photosensitive detector, the description information of the image indicating definition of the projected image.

Claim (Index 15):
The method according to  claim 14 , wherein the step of adjusting, by the controller, the distance between the light exit surface of the optical engine and the projection surface of the screen body according to the description information obtained by the processor comprises:\n controlling the optical engine to move towards or away from the projection surface of the screen body, a distance of each moving being the pre-set step length, comparing values of focal length evaluation functions of the images projected by the optical engine onto the screen body at a starting position and an end position of each moving when the optical engine moves towards or away from the projection surface of the screen body, in response to a value of the focal length evaluation function of a projected image corresponding to a starting position of a first moving of the optical engine being smaller than a value of the focal length evaluation function of a projected image corresponding to an end position of the first moving, controlling the optical engine by the controller to continue moving the pre-set step length towards a same direction until a value of the focal length evaluation function of a projected image corresponding to a starting position of a certain moving is greater than a value of the focal length evaluation function of a projected image corresponding to an end position of the certain moving, and determining the starting position of the certain moving as a position where the optical engine stands to get the projected image clearest, in response to the value of the focal length evaluation function of the projected image corresponding to the starting position of the first moving of the optical engine being greater than the value of the focal length evaluation function of the projected image corresponding to the end position of the first moving, controlling the optical engine by the controller to move the pre-set step length towards an opposite direction, until a value of the focal length evaluation function of a projected image corresponding to a starting position of a moving is greater than a value of the focal length evaluation function of a projected image corresponding to an end position of the moving, and determining the starting position of the moving as the position where the optical engine stands to get the projected image clearest, wherein pixels points of the image within a detection range of the photosensitive detection module have different gray levels.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 91.0
- Lexical Diversity: 2.35714
- Patent Class: 348.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16309492', '15023526', '13659276', '15305164', '14908776']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6458415507857176
- 35 USC 102 Novelty (BERT): 0.4889843588174226
- Combined Prediction Score: 0.6301558315888881
- Mean Citation Score: 170.67913199999995
- Max Citation Score: 190.52556
- Similarity Product: 129.55469074137213

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