公开(公告)号：US20090281796A1

公开(公告)日：2009-11-12

申请号：US12501196

申请日：2009-07-10

申请人： Khaled H. El-Maleh ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. Dejaco

发明人： Khaled H. El-Maleh ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. Dejaco

IPC分类号： G10L19/14

CPC分类号： G10L21/038 ,  G10L19/26

摘要： Wideband speech signals must be converted to narrowband speech signals if the transmission medium or the destination terminal is constructed with narrowband constraints. A typical wideband-to-narrowband conversion method is the elimination of frequencies above 3400 Hz using a low pass filter and a down sampler. However, this method produces a muffled speech sound since the resulting narrowband signal has a flat frequency response. Methods and apparatus are presented herein to enhance the acoustic quality of a wideband-to-narrowband converted signal. A bandwidth switching filter is used to emphasize a mid-range frequency portion of the wideband signal so that the resulting narrowband signal has a non-flat frequency spectrum.

摘要翻译： 如果传输介质或目标终端用窄带约束构成，则宽带语音信号必须转换为窄带语音信号。 典型的宽带至窄带转换方法是使用低通滤波器和下采样器消除3400Hz以上的频率。 然而，该方法产生消声语音，因为所得到的窄带信号具有平坦的频率响应。 这里呈现了增强宽带到窄带转换信号的声学质量的方法和装置。 带宽切换滤波器用于强调宽带信号的中等频率部分，使得所得到的窄带信号具有非平坦频谱。

公开(公告)号：US20080233928A1

公开(公告)日：2008-09-25

申请号：US12134972

申请日：2008-06-06

申请人： Charles HAN ,  Richard Paul Walters ,  Andrew P. DeJaco

发明人： Charles HAN ,  Richard Paul Walters ,  Andrew P. DeJaco

IPC分类号： H04B1/38 ,  G10L21/00 ,  H04M1/00

CPC分类号： H04M1/57 ,  H04M1/271 ,  H04M1/274583 ,  H04M1/72519

摘要： A method of instructing a user how to use a wireless communication device is disclosed and may include determining whether a feature on the wireless communication device has been utilized. When it is determined that the feature has not been utilized, the method may include notifying a presence of the feature, providing information associated with the feature, and prompting the user to use the feature. The information associated with the feature is configured to teach the user how the feature may be executed, the availability of additional features, how to utilize the feature better, or a combination thereof. Further, the feature is a number saving feature, a speed dialing feature, a voice dialing feature, or a combination thereof.

摘要翻译： 公开了指示用户如何使用无线通信设备的方法，并且可以包括确定无线通信设备上的特征是否已被利用。 当确定没有使用特征时，该方法可以包括通知特征的存在，提供与特征相关联的信息，并且提示用户使用该特征。 与特征相关联的信息被配置为教导用户如何执行特征，附加特征的可用性，如何更好地利用特征或其组合。 此外，该特征是数字保存功能，快速拨号功能，语音拨号功能或其组合。

公开(公告)号：US07184954B1

公开(公告)日：2007-02-27

申请号：US09260709

申请日：1999-03-01

申请人： Paul E. Jacobs ,  Andrew P. Dejaco

发明人： Paul E. Jacobs ,  Andrew P. Dejaco

IPC分类号： G10L21/02

CPC分类号： G10L19/005 ,  G10L25/69 ,  H03M13/00

摘要： A speech signal is decoded by a vocoder and the reconstructed speech samples are provided to a decoded frame check unit. The decoded frame check unit examines the energy of the reconstructed speech and compares the energy of the reconstructed speech to a range of acceptable energy values. If the energy is not within the range of energy values, a frame erasure is declared and the decoded frame is prevented from being to the speaker in the telephone. In the exemplary implementation, the speech is reconstructed by a vocoder which includes a postfilter which in turn includes automatic gain control. The automatic gain control element of a post filter includes a means for measuring the energy of the decoded speech data. This measured energy is used by the decoded frame check unit to decide whether to provide the decoded data to the user or to declare a frame erasure. This implementation reduces the amount of additional hardware necessary to implement the present invention.

摘要翻译： 语音信号由声码器解码，并且将重构的语音样本提供给解码帧校验单元。 解码帧检查单元检查重构语音的能量，并将重构语音的能量与可接受的能量值的范围进行比较。 如果能量不在能量值的范围内，则声明帧擦除，并且防止解码的帧被发送到电话中的扬声器。 在示例性实现中，语音由包括后置滤波器的声码器重构，后置滤波器又包括自动增益控制。 后置滤波器的自动增益控制元件包括用于测量解码语音数据的能量的装置。 被测量的能量由解码帧检查单元使用以决定是否向用户提供解码的数据或者声明帧擦除。 该实现减少了实现本发明所需的附加硬件的数量。

公开(公告)号：US06754624B2

公开(公告)日：2004-06-22

申请号：US09783863

申请日：2001-02-13

申请人： Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco

发明人： Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco

IPC分类号： G01L1520

CPC分类号： G10L19/167

摘要： A method and apparatus for enhancing coding efficiency by reducing illegal or other undesirable packet generation while encoding a signal. The probability of generating illegal or other undesirable packets while encoding a signal is reduced by first analyzing a history of the frequency of codebook values selected while quantizing speech parameters. Codebook entries are then reordered so that the index/indices that create illegal or other undesirable packets contain the least frequently used entry/entries. Reordering multiple codebooks for various parameters further reduces the probability that an illegal or other undesirable packet will be created during signal encoding. The method and apparatus may be applied to reduce the probability of generating illegal null traffic channel data packets while encoding eighth rate speech.

摘要翻译： 一种用于通过在编码信号时减少非法或其他不期望的分组生成来增强编码效率的方法和装置。 通过首先分析在量化语音参数时选择的码本值的频率的历史来减少在编码信号时产生非法或其他不期望的分组的概率。 然后重新排序Codebook条目，以便创建非法或其他不合需要的数据包的索引/索引包含最少频繁使用的条目/条目。 对各种参数重新排序多个码本进一步降低了在信号编码期间将创建非法或其他不合需要的数据包的可能性。 可以应用该方法和装置来减少在编码第八速率语音时产生非法空业务信道数据分组的概率。

公开(公告)号：US06745024B1

公开(公告)日：2004-06-01

申请号：US09480835

申请日：2000-01-10

申请人： Andrew P. DeJaco ,  Charles S. Han

发明人： Andrew P. DeJaco ,  Charles S. Han

IPC分类号： H04M3533

CPC分类号： H04W88/184 ,  H04L51/38 ,  H04M3/5307 ,  H04M7/12 ,  H04M2201/60 ,  H04M2203/4536 ,  H04M2207/18 ,  H04M2207/20

摘要： A system and method for preparing and sending e-mail communications using a wireless communications device are disclosed. In one embodiment, input data comprising audio, image, and/or video data is encoded and transmitted to a cellular network. An integrated e-mail processor connected to the cellular network processes the coded data into a composite e-mail message and forwards the message to a server. The server then forwards the composite e-mail message to the indicated recipient(s). In another embodiment, the wireless communications device processes the coded data into a composite e-mail message and forwards it to a server via a cellular network. In either embodiment, the server may be dedicated to the cellular network. The invention thus enables users of handheld wireless communications devices, users of other devices lacking typing keyboards, or users presently unable to use a typing keyboard to prepare and send e-mail messages.

摘要翻译： 公开了一种使用无线通信设备来准备和发送电子邮件通信的系统和方法。 在一个实施例中，包括音频，图像和/或视频数据的输入数据被编码并发送到蜂窝网络。 连接到蜂窝网络的集成电子邮件处理器将编码的数据处理成复合电子邮件消息并将消息转发到服务器。 然后，服务器将复合电子邮件转发到指定的收件人。 在另一个实施例中，无线通信设备将编码数据处理成复合电子邮件消息，并经由蜂窝网络将其转发给服务器。 在任一实施例中，服务器可以专用于蜂窝网络。 因此，本发明使得手持无线通信设备的用户，缺少打字键盘的其他设备的用户或者目前无法使用打字键盘的用户准备和发送电子邮件消息。

公开(公告)号：US06260009B1

公开(公告)日：2001-07-10

申请号：US09249060

申请日：1999-02-12

申请人： Andrew P. Dejaco

发明人： Andrew P. Dejaco

IPC分类号： G10L2100

CPC分类号： G10L19/12 ,  G10L19/173

摘要： A method and apparatus for CELP-based to CELP-based vocoder packet translation. The apparatus includes a formant parameter translator and an excitation parameter translator. The formant parameter translator includes a model order converter and a time base converter. The method includes the steps of translating the formant filter coefficients of the input packet from the input CELP format to the output CELP format and translating the pitch and codebook parameters of the input speech packet from the input CELP format to the output CELP format. The step of translating the formant filter coefficients includes the steps of converting the model order of the formant filter coefficients from the model order of the input CELP format to the model order of the output CELP format and converting the time base of the resulting coefficients from the input CELP format time base to the output CELP format time base.

摘要翻译： 一种用于基于CELP的基于CELP的声码器分组转换的方法和装置。 该装置包括共振峰参数转换器和激励参数转换器。 共振峰参数转换器包括模型顺序转换器和时基转换器。 该方法包括以下步骤：将输入分组的共振峰滤波器系数从输入CELP格式转换为输出CELP格式，并将输入语音分组的音调和码本参数从输入CELP格式转换为输出CELP格式。 翻译共振峰滤波器系数的步骤包括将共振峰滤波器系数的模型顺序从输入CELP格式的模型顺序转换为输出CELP格式的模型阶数的步骤，并将所得系数的时基从 输入CELP格式时基输出CELP格式时基。

公开(公告)号：US06240387B1

公开(公告)日：2001-05-29

申请号：US09252595

申请日：1999-02-12

申请人： Andrew P. DeJaco

发明人： Andrew P. DeJaco

IPC分类号： G10L1902

CPC分类号： G10L19/18 ,  G10L19/002

摘要： It is an objective of the present invention to provide an optimized method of selection of the encoding mode that provides rate efficient coding of the input speech. It is a second objective of the present invention to identify and provide a means for generating a set of parameters ideally suited for this operational mode selection. Third, it is an objective of the present invention to provide identification of two separate conditions that allow low rate coding with minimal sacrifice to quality. The two conditions are the coding of unvoiced speech and the coding of temporally masked speech. It is a fourth objective of the present invention to provide a method for dynamically adjusting the average output data rate of the speech coder with minimal impact on speech quality.

摘要翻译： 本发明的目的是提供一种提供输入语音的速率有效编码的编码模式选择的优化方法。 本发明的第二目的是识别和提供用于生成一组理想地适合于该操作模式选择的参数的装置。 第三，本发明的目的是提供允许低速率编码的两个单独条件的识别，同时牺牲最小的质量。 这两个条件是无声语音的编码和时间掩蔽语音的编码。 本发明的第四个目标是提供一种用于以对语音质量的影响最小的动态调整语音编码器的平均输出数据速率的方法。

公开(公告)号：US5742734A

公开(公告)日：1998-04-21

申请号：US288413

申请日：1994-08-10

申请人： Andrew P. DeJaco ,  William R. Gardner

发明人： Andrew P. DeJaco ,  William R. Gardner

IPC分类号： G10L19/00 ,  G10L19/04 ,  G10L19/14 ,  G10L21/02 ,  H03M7/30 ,  G10L9/14

CPC分类号： G10L19/0208 ,  G10L19/0204 ,  G10L19/22 ,  G10L19/24 ,  G10L25/78 ,  G10L19/10

摘要： It is a first objective of the present invention to provide a method by which to reduce the probability of coding low energy unvoiced speech as background noise. The present invention determines an encoding rate by examining subbands of the input signal, by this method unvoiced speech can be distinguished from background noise. A second objective of the present invention is to provide a means by which to set the threshold levels that takes into account signal energy as well as background noise energy. In the present invention, the background noise is not used to determine threshold values, rather the signal to noise ratio of an input signal is use to determine the threshold values. A third objective of the present invention is to provide a method for coding music passing through a variable rate vocoder. The present invention examines the periodicity of the input signal to distinguish music from background noise.

摘要翻译： 本发明的第一目的是提供一种减少将低能量无声语音编码为背景噪声的可能性的方法。 本发明通过检查输入信号的子带来确定编码速率，通过这种方法，可以将清音语音与背景噪声区分开来。 本发明的第二目的是提供一种用于设置考虑到信号能量以及背景噪声能量的阈值水平的装置。 在本发明中，背景噪声不用于确定阈值，而是使用输入信号的信噪比来确定阈值。 本发明的第三个目的是提供一种用于对通过可变速率声码器的音乐进行编码的方法。 本发明检查输入信号的周期性，以区分音乐与背景噪声。

公开(公告)号：US08041302B2

公开(公告)日：2011-10-18

申请号：US11544162

申请日：2006-10-06

申请人： William R. Gardner ,  Paul E. Jacobs ,  Roberto Padovani ,  Noam Ziv ,  S. Katherine Lam ,  Andrew P. DeJaco

发明人： William R. Gardner ,  Paul E. Jacobs ,  Roberto Padovani ,  Noam Ziv ,  S. Katherine Lam ,  Andrew P. DeJaco

IPC分类号： H04B17/00

CPC分类号： H04W28/22 ,  G10L19/22 ,  G10L19/24 ,  H04B7/2659 ,  H04L1/0014 ,  H04L1/0022 ,  H04L1/0025 ,  H04L47/10 ,  H04L47/14 ,  H04L47/263 ,  H04L47/33 ,  H04L47/38 ,  H04W24/00

摘要： A method and apparatus are described for controlling the data rates for communications to and from a base station and a plurality of remote users. The usage of the communications resource whether the forward link resource (from base station to remote users) or reverse link resource (from remote users to base station) is measured. The measured usage value is compared against at least one predetermined threshold value and the data rates of communications or a subset of communications on said communications resource is modified in accordance with said comparisons.

摘要翻译： 描述了一种用于控制与基站和多个远程用户的通信的数据速率的方法和装置。 通信资源的使用是否测量前向链路资源（从基站到远程用户）或反向链路资源（从远程用户到基站）。 将测量的使用值与至少一个预定阈值进行比较，并且根据所述比较修改通信的数据速率或所述通信资源上的通信的子集。

公开(公告)号：US07577563B2

公开(公告)日：2009-08-18

申请号：US11534327

申请日：2006-09-22

申请人： Khaled H. El-Maleh ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco

发明人： Khaled H. El-Maleh ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco

IPC分类号： H04W7/216 ,  G10L19/00 ,  G10L19/14

CPC分类号： G10L21/038 ,  G10L19/26

摘要： Wideband speech signals must be converted to narrowband speech signals if the transmission medium or the destination terminal is constructed with narrowband constraints. A typical wideband-to-narrowband conversion method is the elimination of frequencies above 3400 Hz using a low pass filter and a down sampler. However, this method produces a muffled speech sound since the resulting narrowband signal has a flat frequency response. Methods and apparatus are presented herein to enhance the acoustic quality of a wideband-to-narrowband converted signal. A bandwidth switching filter is used to emphasize a mid-range frequency portion of the wideband signal so that the resulting narrowband signal has a non-flat frequency spectrum.

摘要翻译： 如果传输介质或目标终端用窄带约束构成，则宽带语音信号必须转换为窄带语音信号。 典型的宽带至窄带转换方法是使用低通滤波器和下采样器消除3400Hz以上的频率。 然而，该方法产生消声语音，因为所得到的窄带信号具有平坦的频率响应。 这里呈现了增强宽带到窄带转换信号的声学质量的方法和装置。 带宽切换滤波器用于强调宽带信号的中等频率部分，使得所得到的窄带信号具有非平坦频谱。