Patent Document ID: 9966077
Application ID: 14969479

Base Claim:
1. A speech recognition device, comprising: a speech acquirer that acquires first speech information; a noise remover that removes noise contained in the first speech information acquired by the speech acquirer using a first removal method and outputs the noise-removed speech information as second speech information; a speech recognizer that performs speech recognition on the second speech information outputted by the noise remover and outputs a speech recognition result as first speech recognition result information; a communicator that (i) transmits the first speech information acquired by the speech acquirer to a server, the server removing noise contained in the first speech information using a second removal method that removes a larger amount of noise than an amount of noise removed from the first speech information using the first removal method, the server obtaining, as third speech information, the first speech information in which noise is removed using the second removal method, and the server performing speech recognition on the third speech information, and (ii) receives a speech recognition result as second speech recognition result information from the server, the speech recognition result being a result obtained by performing the speech recognition on third speech information in the server; and a determiner that makes a selection as to which of the first speech recognition result information outputted by the speech recognizer and the second speech recognition result information received by the communicator should be outputted, wherein the speech recognizer calculates a first likelihood indicating a likelihood of the first speech recognition result information and outputs the calculated first likelihood to the determiner, the communicator receives a second likelihood calculated by the server and indicating a likelihood of the second speech recognition result information and outputs the received second likelihood to the determiner, and the determiner makes a selection as to which of the first speech recognition result information and the second speech recognition result information should be outputted, on the basis of at least one of the first likelihood and the second likelihood.

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Claim 6:
6. The speech recognition device according to claim 1 , wherein the communicator receives the third speech information from the server and outputs the received third speech information to the speech recognizer, the speech recognizer performs speech recognition on the third speech information received by the communicator and outputs a speech recognition result as fourth speech recognition result information, the communicator transmits the second speech information outputted by the noise remover to the server and receives a speech recognition result as third speech recognition result information from the server, the speech recognition result being obtained by performing speech recognition on the second speech information, and outputs the received third speech recognition result information to the determiner, and the determiner makes a selection as to which of the first speech recognition result information outputted by the speech recognizer, the second speech recognition result information received by the communicator, the third speech recognition result information received by the communicator, and the fourth speech recognition result information outputted by the speech recognizer should be outputted.