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 2):
The novel ultrathin acoustic impedance converter of  claim 1 , wherein the frame has a multilayer structure or an integral structure;\n the multilayer structure means that the frame is composed of multiple layers, one layer is fixedly connected with the other layer by adhesive, rivet, screw or trench, to enable the edge of each prestressed membrane or prestressed string net to be sandwiched between interfaces between adjacent layers of the frame to position and tension the prestressed membrane or prestressed string net; and the integral structure means that the frame is an integral whole which cannot be split, wherein the side wall of the cavity thereof is provided with trenches and holes for positioning and tensioning all prestressed membranes or prestressed string nets of the filling material.

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): 0.694018165341447
- 35 USC 102 Novelty (BERT): 0.4787111085919199
- Combined Prediction Score: 0.6724874596664943
- Mean Citation Score: 132.175272
- Max Citation Score: 137.53682
- Similarity Product: 92.28453425100564

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test