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1. 发明授权

US5361323A Signal encoding device 失效
标题翻译：信号编码装置
公开(公告)号：US5361323A
公开(公告)日：1994-11-01
申请号：US800938
申请日：1991-11-29
申请人： Yasumoto Murata , Shuichi Yoshikawa , Yuji Nishiwaki , Shuichi Kawama , Tomokazu Morio , Atsunori Kitoh
发明人： Yasumoto Murata , Shuichi Yoshikawa , Yuji Nishiwaki , Shuichi Kawama , Tomokazu Morio , Atsunori Kitoh
IPC分类号： G10L19/00 , G10L19/02 , H03M7/30 , G10L9/18
CPC分类号： G10L19/038 , G10L19/0018 , H03M7/3082
摘要： In a signal encoding device, a voice signal is divided into subsignals each comprising a predetermined number of successive samples, and data trains are generated by giving initial values to a recurrence equation. The generated data trains are divided into patterns each comprising the same number of samples as the predetermined number. The distance between each pattern produced by the pattern dividing unit and each of the subsignals are calculated. The pattern that provides the smallest distance with respect to each of the subsignals is identified, and the initial value set in the recurrence equation for generation of the data train that constitutes the pattern is output as coded data representing the respective subsignal.
摘要翻译：在信号编码装置中，语音信号被分割成各自包含预定数量的连续采样的子信号，并且通过给出递归方程给出初始值来生成数据列。生成的数据列被划分为各自包含与预定数量相同数量的样本的模式。计算由图案划分单元产生的每个图案与每个子信号之间的距离。识别相对于每个子信号提供最小距离的图案，并且在构成图案的数据串的生成的递归方程中设置的初始值作为表示各个子信号的编码数据输出。

2. 发明授权

US5218640A Voice recording and reproducing apparatus 失效
标题翻译：录音和录音设备
公开(公告)号：US5218640A
公开(公告)日：1993-06-08
申请号：US839087
申请日：1992-02-24
申请人： Tomokazu Morio , Atsunori Kitoh , Yoshiji Fujimoto
发明人： Tomokazu Morio , Atsunori Kitoh , Yoshiji Fujimoto
IPC分类号： G06F17/21 , G11C7/16 , H04M1/65
CPC分类号： G06F17/21 , G11C7/16 , H04M1/65 , G11C2207/16
摘要： A voice recording and reproducing apparatus which includes a voice encoder for encoding a voice signal into a voice code, an address counter, a voice code memory in which the voice code is circulatively stored as specified by the address counter, a discriminator for determining whether the voice signal inputted is a voiced signal or whether the voice signal inputted is a silent signal, and a register for storing an address value of the address counter when the discriminator indicates that the silent signal has changed into the voiced signal. During reproduction, the starting address of the reproduction is determined by a stored address. The stored address represents the address value in the address counter at the time when the discriminator indicates that a silent signal has changed to a voiced signal.
摘要翻译：一种语音记录和再现装置，其包括用于将语音信号编码成语音代码的语音编码器，地址计数器，语音代码存储器，其中通过地址计数器指定的循环地存储语音代码;鉴别器，用于确定是否输入的语音信号是有声信号还是输入的语音信号是否是无声信号，以及当鉴别器指示无声信号已经变成有声信号时，用于存储地址计数器的地址值的寄存器。在再现期间，再现的起始地址由存储的地址确定。存储的地址表示当鉴别器指示无声信号已经改变为有声信号时地址计数器中的地址值。

3. 发明授权

US4944012A Speech analyzing and synthesizing apparatus utilizing differential value-based variable code length coding and compression of soundless portions 失效
标题翻译：利用基于差分值的可变码长编码和无声部分的压缩的语音分析和合成装置
公开(公告)号：US4944012A
公开(公告)日：1990-07-24
申请号：US144478
申请日：1988-01-15
申请人： Tomokazu Morio , Yoshiji Fujimoto , Atsunori Kitoh
发明人： Tomokazu Morio , Yoshiji Fujimoto , Atsunori Kitoh
IPC分类号： G10L25/78 , H04B1/66 , H04B14/06
CPC分类号： G10L25/78 , H04B1/66 , H04B14/068
摘要： A speech analyzing and synthesizing apparatus includes a sampling circuit for sampling an inputted speech signal, a speech analyzer for analyzing and coding the inputted speech signal, and a speech synthesizer for decoding the speech signal coded by said speech analyzer into a synthesized speech, whereby the average code length can be advantageously shortened to realize a low capacity memory and a well-analyzed and synthetized speech. Moreover, a speech recording apparatus is provided wherein a soundless section in the inputted speech signal is compressed by real time, and even a weak short-time portion in the sounded section of an inputted speech signal is not erroneously judged to be soundless, but is coded as a sounded portion.

4. 发明授权

US5111505A System and method for reducing distortion in voice synthesis through improved interpolation 失效
标题翻译：通过改进的插值减少语音合成中的失真的系统和方法
公开(公告)号：US5111505A
公开(公告)日：1992-05-05
申请号：US598826
申请日：1990-10-16
申请人： Atsunori Kitoh , Yoshiji Fujimoto
发明人： Atsunori Kitoh , Yoshiji Fujimoto
IPC分类号： G10L13/06
CPC分类号： G10L13/06
摘要： A voice synthesizing device which compiles wave segments, such as pitch wave segments, in order to synthesize speech. Speech is synthesized by connecting wave segments to form a contiguous waveform. Each wave segment is assigned one or more connection types which describe the connection to be made between points on that wave segment and points on adjacent wave segments. A wave segment connector uses information on the connection types of adjacent wave segments to connect the end point and lead point of the adjacent wave segments using a normal sampling period or a normal sampling period compressed or expanded by 1/2 of the sampling period. The period used depends on the connection type stored in the connection type memory.

5. 发明授权

US5119092A Apparatus for encoding, decoding, and storing waveforms 失效
标题翻译：用于编码，解码和存储波形的装置
公开(公告)号：US5119092A
公开(公告)日：1992-06-02
申请号：US438869
申请日：1989-11-20
申请人： Kazuyuki Sumi , Atsunori Kitoh
发明人： Kazuyuki Sumi , Atsunori Kitoh
IPC分类号： G10L19/08 , H03M7/00 , H03M7/30
CPC分类号： G10L19/08 , H03M7/3053
摘要： A waveform encoding and decoding apparatus is disclosed which comprises a memory, a coding device, a packing unit, and a storage device. The coding device encodes an analog waveform into digital coded data having digital coded data words each having a predetermined length. The packing device "packs" groups of more than one of the coded data words into packed data words each having a predetermined length. The storage device stores the packed data words into respective segments located in the memory. The segments which are located in the memory each have a bit length equal to the predetermined length of the packed data words. A data transfer device may also be provided for transferring and rearranging data between segments located in the memory.
摘要翻译：公开了一种包括存储器，编码装置，打包单元和存储装置的波形编码和解码装置。编码装置将模拟波形编码为具有每个具有预定长度的数字编码数据字的数字编码数据。打包装置将多个编码数据字中的多个组“分组”成具有预定长度的压缩数据字。存储装置将打包数据字存储到位于存储器中的各个段中。位于存储器中的段各自具有等于打包数据字的预定长度的位长度。还可以提供数据传送装置，用于在位于存储器中的片段之间传送和重排数据。

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