PATENT CLAIM ANALYSIS

Application Number: 15771922
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["381", "345000"]

Abstract:
The present invention discloses a ultrathin acoustic impedance converter belonging to the acoustic field, which is characterized by comprising one or a plurality of impedance conversion units, wherein each impedance conversion unit is composed of a frame, a plurality of prestressed membranes or prestressed string nets, and multiple layers of acoustic material, wherein a permeable cavity is arranged in the frame, the prestressed membranes or string nets and the acoustic material are alternately arranged in the cavity, i.e., a prestressed membrane or string net is arranged, and then a layer of acoustic material is arranged, and so on until the cavity is fully filled. The cavity can be designed in different shapes, including a variable cross section and a uniform cross section. Each prestressed membrane or string net is required to be applied with prestress before being arranged in the cavity, and the magnitude of the prestress depends on the resistance value that the membrane or string net is expected to reach. The novel ultrathin acoustic impedance converter of the present invention can realize rapid change from low impedance to high impedance or from high impedance to low impedance and realize ultrathin design.

Claim (Index 5):
The novel ultrathin acoustic impedance converter of  claim 3 , wherein each prestressed membrane or prestressed string net of the filling material is designed into different types as required, including integrated membrane, hole membrane, string net and string net membrane which are described in detail as follows:\n (1) integrated membrane: an integrated smooth hole-free membrane, on which no grid line is presented; (2) hole membrane: fully distributed with holes in roundness, oval, polygon and bounded curve; (3) string net: filamentous string lines are pulled to form a grid, and at the staggered positions of the grid, the string lines are twined with one another into a knot to form a node, or are overlapped with one another but are not twined into a knot; (4) string net membrane: filamentous string lines are pulled to form a grid, and at the staggered positions of the grid, the string lines are connected with one another by membrane sheets in roundness, oval, polygon and bounded curved surface; (5) combination of integrated membrane and string net: staggered grid lines are presented on the integrated membrane; (6) combination of hole membrane and string net: staggered grid lines are presented on the hole membrane; (7) variant string net: filamentous string lines are pulled to form a grid, and at the staggered positions of the grid, the string lines are connected with one another by polygonal nets.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 91.0
- Lexical Diversity: 2.4023
- Patent Class: 381.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14289521', '13534517', '14889151', '14865374', '16075926']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6926760808863877
- 35 USC 102 Novelty (BERT): 0.4845351663290262
- Combined Prediction Score: 0.6718619894306516
- Mean Citation Score: 132.175272
- Max Citation Score: 137.53682
- Similarity Product: 87.8793957361126

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