公开(公告)号：US20100154015A1

公开(公告)日：2010-06-17

申请号：US12437261

申请日：2009-05-07

申请人： Byung Ok KANG ,  Eui Sok CHUNG ,  Ji Hyun WANG ,  Yun Keun LEE ,  Jeom Ja KANG ,  Jong Jin KIM ,  Ki-young PARK ,  Jeon Gue PARK ,  Sung Joo LEE ,  Hyung-Bae JEON ,  Ho-Young JUNG ,  Hoon CHUNG

发明人： Byung Ok KANG ,  Eui Sok CHUNG ,  Ji Hyun WANG ,  Yun Keun LEE ,  Jeom Ja KANG ,  Jong Jin KIM ,  Ki-young PARK ,  Jeon Gue PARK ,  Sung Joo LEE ,  Hyung-Bae JEON ,  Ho-Young JUNG ,  Hoon CHUNG

IPC分类号： H04N7/173 ,  G10L15/04 ,  G06F17/30

CPC分类号： H04N21/6125 ,  G10L15/07 ,  H04N21/42203 ,  H04N21/42204 ,  H04N21/4334 ,  H04N21/4394 ,  H04N21/472 ,  H04N21/8405

摘要： A metadata search apparatus using speech recognition includes a metadata processor for processing contents metadata to obtain allomorph of target vocabulary required for speech recognition and search; a metadata storage unit for storing the contents metadata; a speech recognizer for performing speech recognition on speech data uttered by a user by searching the allomorph of the target vocabulary; a query language processor for extracting a keyword from the vocabulary speech-recognized by the speech recognizer; and a search processor for searching the metadata storage unit to extract the contents metadata corresponding to the keyword. An IPTV receiving apparatus employs the metadata search apparatus to provide IPTV services through the functions of speech recognition.

摘要翻译： 使用语音识别的元数据搜索装置包括用于处理内容元数据以获得语音识别和搜索所需的目标词汇的变形的元数据处理器; 用于存储内容元数据的元数据存储单元; 用于通过搜索目标词汇的变体来对用户发出的语音数据执行语音识别的语音识别器; 查询语言处理器，用于从由语音识别器识别的词汇中提取关键词; 以及搜索处理器，用于搜索元数据存储单元以提取与该关键字对应的内容元数据。 IPTV接收装置利用元数据搜索装置通过语音识别的功能提供IPTV服务。

公开(公告)号：US20100161329A1

公开(公告)日：2010-06-24

申请号：US12506719

申请日：2009-07-21

申请人： Hoon CHUNG ,  Jeon Gue PARK ,  Yunkeun LEE ,  Ho-Young JUNG ,  Hyung-Bae JEON ,  Jeorn Ja KANG ,  Sung Joo LEE ,  Euisok CHUNG ,  Ji Hyun WANG ,  Byung Ok KANG ,  Ki-young PARK ,  Jong Jin KIM

发明人： Hoon CHUNG ,  Jeon Gue PARK ,  Yunkeun LEE ,  Ho-Young JUNG ,  Hyung-Bae JEON ,  Jeorn Ja KANG ,  Sung Joo LEE ,  Euisok CHUNG ,  Ji Hyun WANG ,  Byung Ok KANG ,  Ki-young PARK ,  Jong Jin KIM

IPC分类号： G10L15/00

CPC分类号： G10L15/08 ,  G10L15/142

摘要： A Viterbi decoder includes: an observation vector sequence generator for generating an observation vector sequence by converting an input speech to a sequence of observation vectors; a local optimal state calculator for obtaining a partial state sequence having a maximum similarity up to a current observation vector as an optimal state; an observation probability calculator for obtaining, as a current observation probability, a probability for observing the current observation vector in the optimal state; a buffer for storing therein a specific number of previous observation probabilities; a non-linear filter for calculating a filtered probability by using the previous observation probabilities stored in the buffer and the current observation probability; and a maximum likelihood calculator for calculating a partial maximum likelihood by using the filtered probability. The filtered probability may be a maximum value, a mean value or a median value of the previous observation probabilities and the current observation probability.

摘要翻译： 维特比解码器包括：观测向量序列生成器，用于通过将输入语音转换为观察向量序列来生成观察向量序列; 局部最优状态计算器，用于获得具有与当前观察向量最大相似度的部分状态序列作为最佳状态; 观测概率计算器，用于获得在最佳状态下观察当前观测矢量的概率作为当前观测概率; 用于在其中存储特定数量的先前观察概率的缓冲器; 用于通过使用存储在缓冲器中的先前观察概率和当前观察概率来计算滤波概率的非线性滤波器; 以及最大似然计算器，用于通过使用滤波的概率来计算部分最大似然。 滤波概率可以是先前观测概率和当前观测概率的最大值，平均值或中值。