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 8):
The novel ultrathin acoustic impedance converter of  claim 4 , wherein each of multiple layers of acoustic material of the filling material is designed into different structures as required, including integrated structure, porous structure, solid filling structure and stereographic string net structure which are described in detail as follows:\n (1) integrated structure: the acoustic material is a whole without hole or grid line; (2) porous structure: the acoustic material is fully distributed with transparent or non-transparent holes in sphere, cylinder, truncated cone, cone, polyhedron and prism; (3) solid filling structure: the acoustic material is filled with solids in sphere, cylinder, truncated cone, cone, polyhedron and prism; (4) stereographic string net structure: filamentous string lines are pulled to form a grid, and at the staggered positions of the grid, the string lines are twined to form a node, or are overlapped with one another but are not twined into a knot; (5) combination of integral structure and stereographic string net structure: grid lines are presented in the integrated acoustic material; (6) combination of porous structure and stereographic string net structure: grid lines are presented in the porous acoustic material; (7) variant stereographic string net: filamentous string lines are pulled to form a stereographic grid, and at the staggered positions of the grid, the string lines are connected with one another by acoustic material in sphere, cylinder, truncated cone, cone, polyhedron and prism; (8) variant stereographic string net: filamentous string lines are pulled to form a stereographic grid, and at the staggered positions of the grid, the string lines are connected with one another by stereographic nets or stereographic casings in sphere, cylinder, truncated cone, cone, polyhedron and prism.

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): 0.6955331346625361
- 35 USC 102 Novelty (BERT): 0.4721267872728518
- Combined Prediction Score: 0.6731924999235677
- Mean Citation Score: 132.175272
- Max Citation Score: 137.53682
- Similarity Product: 97.27005477001308

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