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1. 发明授权

US10572538B2 Lattice finalization device, pattern recognition device, lattice finalization method, and computer program product 有权
公开(公告)号：US10572538B2
公开(公告)日：2020-02-25
申请号：US15135735
申请日：2016-04-22
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G06F16/901 , G10L15/08
摘要： According to an embodiment, a lattice finalization device finalizes a portion of a lattice that is generated by pattern recognition with respect to a signal on a frame-by-frame basis in chronological order. The device includes a detector and a finalizer. The detector is configured to detect, as a splitting position, a frame in the lattice in which the number of nodes and passing arcs is equal to or smaller than a reference value set in advance. The finalizer is configured to finalize nodes and arcs in paths from a start node to the splitting position in the lattice.

2. 发明授权

US10452355B2 Automaton deforming device, automaton deforming method, and computer program product 有权
公开(公告)号：US10452355B2
公开(公告)日：2019-10-22
申请号：US14826398
申请日：2015-08-14
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao , Takashi Masuko
IPC分类号： G06F7/483 , G05B19/045
摘要： According to an embodiment, an automaton deforming device includes a transforming unit and a deforming unit. The transforming unit generates second values by transforming first values, which either represent weights assigned to transitions in a weighted finite state automaton or represent values that are transformed into weights assigned to transitions in a weighted finite state automaton, in such a way that number of elements of a set of the first values are reduced and an order of the first values is preserved. The deforming unit deforms a weighted finite state automaton in which weights according to the second values are assigned to transitions.

3. 发明申请

US20160086096A1 AUTOMATON DEFORMING DEVICE, AUTOMATON DEFORMING METHOD, AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译： AUTOMATON变形装置，自动变形方法和计算机程序产品
公开(公告)号：US20160086096A1
公开(公告)日：2016-03-24
申请号：US14826398
申请日：2015-08-14
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao , Takashi Masuko
IPC分类号： G06N99/00 , G06F7/483 , G06N7/00
摘要： According to an embodiment, an automaton deforming device includes a transforming unit and a deforming unit. The transforming unit generates second values by transforming first values, which either represent weights assigned to transitions in a weighted finite state automaton or represent values that are transformed into weights assigned to transitions in a weighted finite state automaton, in such a way that number of elements of a set of the first values are reduced and an order of the first values is preserved. The deforming unit deforms a weighted finite state automaton in which weights according to the second values are assigned to transitions.
摘要翻译：根据实施例，自动变形装置包括变换单元和变形单元。变换单元通过转换第一值来产生第二值，第一值表示加权有限状态自动机中分配给转换的权重，或表示被转换为加权有限状态自动机中的转换的权重的值，一组第一个值被减少，并且第一个值的顺序被保留。变形单元使加权的有限状态自动机变形，其中根据第二值的权重被分配给过渡。

4. 发明授权

US10042345B2 Conversion device, pattern recognition system, conversion method, and computer program product 有权
公开(公告)号：US10042345B2
公开(公告)日：2018-08-07
申请号：US14608334
申请日：2015-01-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G05B19/045 , G05B15/02
摘要： According to an embodiment, a conversion device converts a first automaton into a second automaton, which both are weighted finite state automatons. The first automaton has a boundary of a path assigned with an input symbol, an appearance position of the boundary, and identifiers for identifying paths. The second automaton has path(s) except unnecessary path(s). The device includes a specifying unit and a search unit. The specifying unit is configured to specify, as a start position, a state of the head of a retrieved path in which a combined weight, which is obtained by adding an accumulated weight from an initial state to the state of the head of the retrieved path in the first automaton and a weight of the best path from the state of the head of the retrieved path to a final state, is best. The search unit is configured to search for a path in which a weight from the start position to a final state in the first automaton is best until reaching next boundary.

5. 发明申请

US20150220074A1 CONVERSION DEVICE, PATTERN RECOGNITION SYSTEM, CONVERSION METHOD, AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译：转换装置，图案识别系统，转换方法和计算机程序产品
公开(公告)号：US20150220074A1
公开(公告)日：2015-08-06
申请号：US14608334
申请日：2015-01-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G05B15/02
CPC分类号： G05B19/045 , G05B2219/23288
摘要： According to an embodiment, a conversion device converts a first automaton into a second automaton, which both are weighted finite state automatons. The first automaton has a boundary of a path assigned with an input symbol, an appearance position of the boundary, and identifiers for identifying paths. The second automaton has path(s) except unnecessary path(s). The device includes a specifying unit and a search unit. The specifying unit is configured to specify, as a start position, a state of the head of a retrieved path in which a combined weight, which is obtained by adding an accumulated weight from an initial state to the state of the head of the retrieved path in the first automaton and a weight of the best path from the state of the head of the retrieved path to a final state, is best. The search unit is configured to search for a path in which a weight from the start position to a final state in the first automaton is best until reaching next boundary.
摘要翻译：根据一个实施例，转换装置将第一自动机转换成第二自动机，二者都是加权有限状态自动机。第一自动机具有分配有输入符号的路径的边界，边界的出现位置以及用于识别路径的标识符。第二个自动机除了不必要的路径之外还有路径。设备包括指定单元和搜索单元。指定单元被配置为将检索路径的头部的状态指定为通过将累积权重从初始状态添加到检索路径的头部的状态而获得的组合权重作为开始位置在第一个自动机中，最重要的路径是从检索路径的头到最后状态的最佳路径。搜索单元被配置为搜索在第一自动机中从起始位置到最终状态的权重最好直到到达下一个边界的路径。

6. 发明申请

US20150179166A1 DECODER, DECODING METHOD, AND COMPUTER PROGRAM PRODUCT 有权
标题翻译：解码器，解码方法和计算机程序产品
公开(公告)号：US20150179166A1
公开(公告)日：2015-06-25
申请号：US14574892
申请日：2014-12-18
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G10L15/08 , G10L19/00 , G10L15/14
CPC分类号： G10L15/08 , G06K9/6297 , G10L15/142 , G10L2015/081 , G10L2015/085
摘要： According to an embodiment, a decoder includes a token operating unit, a node adder, and a connection detector. The token operating unit is configured to, every time a signal or a feature is input, propagate each of a plurality of tokens, which is an object assigned with a state of the of a path being searched, according to a digraph until a state or a transition assigned with a non-empty input symbol is reached. The node adder is configured to, in each instance of token propagating, add, in a lattice, a node corresponding to a state assigned to each of the plurality of tokens. The connection detector is configured to refer to the digraph and detect a node that is connected to a node added in an i-th instance in the lattice and that is added in an i+1-th instance in the lattice.
摘要翻译：根据实施例，解码器包括令牌操作单元，节点加法器和连接检测器。令牌操作单元被配置为，每当信号或特征被输入时，根据有向图传播作为被搜索路径的状态的多个令牌中的每个标记，直到状态或到达分配有非空输入符号的转换。节点加法器被配置为在令牌传播的每个实例中，在格子中添加与分配给多个令牌中的每一个的状态相对应的节点。连接检测器被配置为引用图，并且检测连接到在网格中的第i个实例中添加的节点并且被添加到网格中的第i + 1个实例中的节点。

7. 发明申请

US20130191125A1 TRANSCRIPTION SUPPORTING SYSTEM AND TRANSCRIPTION SUPPORTING METHOD 审中-公开
标题翻译：转录支持系统和转录支持方法
公开(公告)号：US20130191125A1
公开(公告)日：2013-07-25
申请号：US13747939
申请日：2013-01-23
申请人： Kabushiki Kaisha Toshiba
发明人： Hirokazu SUZUKI , Nobuhiro Shimogori , Tomoo Ikeda , Taira Ashikawa , Manabu Nagao , Osamu Nishiyama , Masayuki Ashikawa
IPC分类号： G10L15/26
CPC分类号： G10L15/26
摘要： A transcription supporting system for the conversion of voice data to text data includes a first storage module, a playing module, a voice recognition module, an index generating module, a second storage module, a text forming module, and an estimation module. The first storage module stores the voice data. The playing module plays the voice data. The voice recognition module executes the voice recognition processing on the voice data. The index generating module generates a voice index that makes the plural text strings generated in the voice recognition processing correspond to voice position data. The second storage module stores the voice index. The text forming module forms text corresponding to input of a user correcting or editing the generated text strings. The estimation module estimates the formed voice position indicating the last position in the voice data where the user corrected/confirmed the voice recognition.
摘要翻译：用于将语音数据转换为文本数据的转录支持系统包括第一存储模块，播放模块，语音识别模块，索引生成模块，第二存储模块，文本形成模块和估计模块。第一存储模块存储语音数据。播放模块播放语音数据。语音识别模块对语音数据执行语音识别处理。索引生成模块生成语音索引，使得在语音识别处理中生成的多个文本串对应于语音位置数据。第二存储模块存储语音索引。文本形成模块形成对应于修改或编辑生成的文本串的用户的输入的文本。估计模块估计所形成的语音位置，指示用户对话音数据中的最后位置进行了校正/确认语音识别。

8. 发明授权

US10803858B2 Speech recognition apparatus, speech recognition method, and computer program product 有权
公开(公告)号：US10803858B2
公开(公告)日：2020-10-13
申请号：US15686410
申请日：2017-08-25
申请人： Kabushiki Kaisha Toshiba
发明人： Manabu Nagao , Hiroshi Fujimura
IPC分类号： G10L15/22 , G10L15/02 , G10L15/26 , G10L15/08 , G10L15/16
摘要： According to an embodiment, a speech recognition apparatus includes a calculation unit that calculates, based on a speech signal, a score vector sequence including score vectors including an acoustic score for each of input symbols, a search unit that generates an input symbol string by searching for a path of the input symbol tracing the acoustic score having a high likelihood in the score vector sequence and that generates an output symbol representing a recognition result of the speech signal based on a recognition target symbol representing linguistic information as a recognition target among the input symbols, an additional symbol acquisition unit that obtains an additional symbol representing paralinguistic information and/or non-linguistic information from among the input symbols included in a range corresponding to the output symbol, and an output unit that outputs the output symbol and the obtained additional symbol in association with each other.

9. 发明授权

US10008200B2 Decoder for searching a path according to a signal sequence, decoding method, and computer program product 有权
公开(公告)号：US10008200B2
公开(公告)日：2018-06-26
申请号：US14574895
申请日：2014-12-18
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G10L19/00 , G10L15/08 , G10L15/14
CPC分类号： G10L15/083 , G10L15/142 , G10L2015/081
摘要： According to an embodiment, a decoder searches a finite state transducer and outputs an output symbol string corresponding to a signal that is input or corresponding to a feature sequence of signal that is input. The decoder includes a token operating unit and a duplication eliminator. The token operating unit is configured to, every time the signal or the feature is input, propagate each of a plurality of tokens, which is assigned with a state of the head of a path being searched, according to the finite state transducer. The duplication eliminator is configured to eliminate duplication of two or more tokens which have same state assigned thereto and for which respective previously-passed transitions are assigned with same input symbol.

10. 发明授权

US09786272B2 Decoder for searching a digraph and generating a lattice, decoding method, and computer program product 有权
公开(公告)号：US09786272B2
公开(公告)日：2017-10-10
申请号：US14574892
申请日：2014-12-18
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Manabu Nagao
IPC分类号： G10L15/08 , G10L19/00 , G10L15/14 , G06K9/62
CPC分类号： G10L15/08 , G06K9/6297 , G10L15/142 , G10L2015/081 , G10L2015/085
摘要： According to an embodiment, a decoder includes a token operating unit, a node adder, and a connection detector. The token operating unit is configured to, every time a signal or a feature is input, propagate each of a plurality of tokens, which is an object assigned with a state of the of a path being searched, according to a digraph until a state or a transition assigned with a non-empty input symbol is reached. The node adder is configured to, in each instance of token propagating, add, in a lattice, a node corresponding to a state assigned to each of the plurality of tokens. The connection detector is configured to refer to the digraph and detect a node that is connected to a node added in an i-th instance in the lattice and that is added in an i+1-th instance in the lattice.

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