Patent Document ID: 9230541
Application ID: 14567969

Base Claim:
1. A method of recognizing a keyword in a speech, comprising: on an electronic device: receiving a sequence of audio frames comprising a current frame and a subsequent frame that follows the current frame; determining a candidate keyword for the current frame using a predetermined decoding network that comprises keywords and filler words of multiple languages, associating the audio frame sequence with a confidence score that is partially determined according to the candidate keyword; identifying a word option for the subsequent frame using the candidate keyword and the predetermined decoding network; when the candidate keyword and the word option are associated with two distinct types of languages, updating the confidence score of the audio frame sequence based on a penalty factor that is predetermined according to the two distinct types of languages, the word option and an acoustic model of the subsequent frame; and determining that the audio frame sequence includes both the candidate keyword and the word option by evaluating the updated confidence score according to a keyword determination criterion.

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Claim 9:
9. The method of claim 1 , wherein in accordance with a decoding structure of the predetermined decoding network, each keyword in the predetermined decoding network is associated with at least one word that is used together with the respective keyword in real speech and included in the decoding network.