US 11,955,119 B2
Speech recognition method and apparatus
Jihyun Lee, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 16, 2022, as Appl. No. 18/083,251.
Application 18/083,251 is a continuation of application No. 16/729,771, filed on Dec. 30, 2019, granted, now 11,557,286.
Claims priority of application No. 10-2019-0094950 (KR), filed on Aug. 5, 2019.
Prior Publication US 2023/0122900 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 15/187 (2013.01); G10L 15/02 (2006.01); G10L 15/22 (2006.01)
CPC G10L 15/187 (2013.01) [G10L 15/02 (2013.01); G10L 15/22 (2013.01); G10L 2015/025 (2013.01); G10L 2015/223 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A speech recognition method comprising:
obtaining 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;
receiving speech data;
obtaining, 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;
replacing the phonetic symbol sequence included in the candidate text with a replacement word corresponding to the phonetic symbol sequence; and
determining a target text corresponding to the received speech data based on a result of the replacing,
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, and further comprising
replacing the phonetic symbol sequence included in the candidate text with the determined replacement word.