PATENT CLAIM ANALYSIS

Application Number: 16009910
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["704", "235000"]

Abstract:
Provided herein is a method of automatically evaluating non-native speakers' pronunciation proficiency, wherein an input speech signal is received, the speech recognition module transcribes it into a text; the text is converted into a segmental string with temporal information for each phone; in the key module of feature extraction, nine features of speech rhythm and fluency are computed; and then all feature values are integrated into an overall pronunciation proficiency score. This method can be applied to both types of non-native speech input: read-aloud speech and spontaneous speech.

Claim (Index 1):
An automatic system of evaluating non-native speech, comprising:\n a module for automatic recognition of non-native speech; a module for converting recognized texts into time demarcated phone-like-unit sequence; a module for extracting features of speech rhythm and fluency; a module that integrates individual feature values to an overall target language proficiency score; wherein the speech rhythm features include\n [RCFsyl] which computes the ratio of \u2018the mean syllable duration of content words\u2019 to \u2018the mean syllable duration of function words\u2019; \n [% FW] which computes the ratio of function words in an utterance; \n [PVI] which computes the pair-wise vocalic interval variability; \n [% V] which computes the ratio of vocalic intervals in an utterance; and \n the fluency features include\n [NUMbp] which computes the number of between-word pauses; \n [NUMwp] which computes the number of within-word pauses; \n [RATIObp] which computes the ratio of pause duration in an utterance; \n [NUMns] which computes the number of non-speech voice fillers such as hesitation and interjections; \n [RATEutt] which computes the speed of speech.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 94.0
- Lexical Diversity: 1.50769
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10945150', '11678508', '13755790', '12628611', '15054128']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2516951843522771
- 35 USC 102 Novelty (BERT): 0.5065951871751762
- Combined Prediction Score: 0.2771851846345671
- Mean Citation Score: 256.856596
- Max Citation Score: 271.3906
- Similarity Product: 204.3099255165816

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

Dataset: test