PATENT CLAIM ANALYSIS

Application Number: 15963492
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["084", "645000"]

Abstract:
A wind instrument such as a harmonica has a mouthpiece with one or more air channels, an electric power source, and a means for generating an electrical output signal from strain gages exposed to airflow in the channels. First and second strain gages having variable flow-induced resistance are bonded to a flexible substrate and suspended within an air channel, which includes a divider shelf for directing a first airflow to the first strain gage and a second airflow to the second strain gage. Complimentary strain gages are mounted to an opposite side of the substrate for inverse flexure to enable temperature correction for the first and second strain gages. When a user forces air through a channel in a direction biased to one side of the divider shelf a difference signal is generated by the first and second strain gages and detected by comparing their outputs. The difference signal can be used to adjust a variable control signal in applications such as volume control, dimming lights, or bending notes generated by the harmonica.

Claim (Index 13):
An electronic harmonica having a body with a plurality of air channels, each corresponding to a different musical note, an electric power source, and means for enabling an electrically operated sound producing device to produce said musical notes in response to output signals from strain gages exposed to airflow in the air chambers, each strain gage having a flexible resilient element and an electrical resistance that varies in response to flexure of the resilient element, the improvement comprising:\n first and second substrates suspended within at least one of the air channels, each substrate having a forward strain gage bonded to a forward side of the substrate and a rearward strain gage bonded to a rearward side of the substrate; temperature correction circuitry configured to subtract from an output signal of the forward strain gage of the first substrate an output signal of the rearward strain gage of the first substrate to generate a first temperature-corrected signal; the temperature correction circuitry further configured to subtract from an output signal of the forward strain gage of the second substrate an output signal of the rearward strain gage of the second substrate to generate a second temperature-corrected signal; and the at least one air channel having an internal divider shelf configured to divide incident airflow entering the at least one air channel into first and second airflows and direct the first airflow to the first substrate and the second airflow to the second substrate.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 91.0
- Lexical Diversity: 1.98913
- Patent Class: 84.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13225828', '13569329', '13671421', '13208510', '12899000']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6031527987273626
- 35 USC 102 Novelty (BERT): 0.4832819301146119
- Combined Prediction Score: 0.5911657118660876
- Mean Citation Score: 187.39598
- Max Citation Score: 205.49046
- Similarity Product: 135.6293554028893

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