US 2020/0005774 A1 · SPEECH RECOGNITION METHOD AND SPEECH RECOGNITION DEVICE

Abstract

Disclosed are a speech recognition method capable of communicating with other electronic devices and an external server in a 5G communication condition by performing speech recognition by executing an artificial intelligence (AI) algorithm and/or a machine learning algorithm. The speech recognition method may comprise performing speech recognition by using an acoustic model and a language model stored in a speech database, determining whether the speech recognition of the spoken sentence is successful, storing speech recognition failure data when the speech recognition of the spoken sentence fails, analyzing the speech recognition failure data of the spoken sentence and updating the acoustic model or the language model by adding the recognition failure data to a learning database of the acoustic model or the language model when the cause of the speech recognition failure is due to the acoustic model or the language model and machine-learning the acoustic model or the language model.

Claims18

Dependent claims

A speech recognition method comprising:

receiving a spoken sentence speech spoken by a user;
performing speech recognition using an acoustic model and a language model stored in a speech database;
determining whether the speech recognition is successful;
storing speech recognition failure data when the speech recognition fails;
analyzing the speech recognition failure data to determine whether a cause of the speech recognition failure is due to the acoustic model or the language model;
and
updating the acoustic model by adding the recognition failure data to a learning database of the acoustic model when the cause of the speech recognition failure is due to the acoustic model and machine-learning the acoustic model based on the added learning database of the acoustic model and updating the language model by adding the recognition failure data to a learning database of the language model when the cause of the speech recognition failure is due to the language model and machine-learning the language model based on the added learning database of the language model.

4 more elements

A speech recognition device comprising:

a speech outputter for receiving a spoken sentence speech spoken by a user;
a speech recognizer for performing speech recognition using an acoustic model and a language model stored in a speech database;
a recognition failure cause analyzer configured to analyze whether a cause of the recognition failure is due to the acoustic model or the language model when the speech recognition fails;
and
a controller configured to control the acoustic model or the language model of the speech recognizer of the speech recognizer to be updated based on the analyzed speech recognition failure cause.

2 more elements

Dependencies are inferred from the claim text.

Speech recognition method and speech recognition device

Life of this patent

Speech recognition method and speech recognition device

Life of this patent

Abstract

Claims18