Patent ID: 11955119
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A speech recognition apparatus comprising:
a processor configured to:
obtain a speech recognition model by:
detecting proper nouns from training data,
replacing, using dictionary data corresponding to a category indicated by an identifier pair among sets of dictionary data corresponding to different categories, each proper noun with a phonetic symbol sequence associated with each proper noun to obtain preprocessed training data, and
training the speech recognition model based on the preprocessed training data;
receive speech data;
obtain, from the received speech data, a candidate text including at least one word and a phonetic symbol sequence associated with a pronunciation of a target word included in the received speech data, using the trained speech recognition model,
wherein the at least one word includes at least one sub-word, and the candidate text includes the at least one sub-word, the phonetic symbol sequence, and an identifier pair indicating a start and an end of the phonetic symbol sequence, wherein the identifier pair indicates a category of the target word associated with the phonetic symbol sequence;
replace the phonetic symbol sequence included in the candidate text with a replacement word corresponding to the phonetic symbol sequence;
replace the phonetic symbol sequence included in the candidate text with the determined replacement word, and
determine a target text corresponding to the received speech data based on a result of the replacing.