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    Method and apparatus for detection of tandem vocoding to modify vocoder filtering
    1.
    发明授权
    Method and apparatus for detection of tandem vocoding to modify vocoder filtering 失效
    用于检测串联声码的方法和装置，用于修改声码器滤波

    公开(公告)号：US5903862A

    公开(公告)日：1999-05-11

    申请号：US575287

    申请日：1996-01-11

    申请人： Lindsay A. Weaver, Jr. ,  S. Katherine Lam ,  William R. Gardner ,  Paul E. Jacobs ,  Andrew P. DeJaco ,  Gilbert C. Sih

    发明人： Lindsay A. Weaver, Jr. ,  S. Katherine Lam ,  William R. Gardner ,  Paul E. Jacobs ,  Andrew P. DeJaco ,  Gilbert C. Sih

    IPC分类号： G10L11/02 ,  G10L19/00 ,  G10L19/14 ,  H04B7/26 ,  H04B14/04 ,  H04Q11/04 ,  H04W88/18 ,  G10L9/18 ,  H04Q7/24

    CPC分类号： H04W88/181 ,  G10L19/16

    摘要： When one vocoding system is coupled to another vocoding system, a tandem arrangement results. The tandem configuration results in voice quality degradation as speech is encoded and decoded, then encoded and decoded again. One reason for the degradation is that postfiltering performed at the output of the speech decoding process introduces distortions in the spectral content of the reconstructed speech as compared to the original speech. The present invention prevents the degradation due to the use of postfilters by modifying the postfiltering within the vocoders where a tandem configuration exists. A detection code is embedded within the data signal to indicate the existence of a tandem configuration. If the detection code is received at a vocoder, modified vocoding is established within the vocoders to prevent the degradation due to the postfiltering.

    摘要翻译： 当一个声码系统耦合到另一个声码系统时，会产生串联排列。 串音配置导致语音质量下降，因为语音被编码和解码，然后被再次编码和解码。 降级的一个原因是在语音解码过程的输出处执行的后置滤波与原始语音相比引入了重构语音的频谱内容中的失真。 本发明通过修改存在串列配置的声码器中的后置滤波来防止由于使用后置滤波器导致的劣化。 检测码嵌入在数据信号中以指示串联配置的存在。 如果在声码器处接收到检测码，则在声码器内建立修改后的声码，以防止由于后置滤波引起的劣化。

    Encoding rate selection in a variable rate vocoder
    6.
    发明授权
    Encoding rate selection in a variable rate vocoder 失效
    可变速率声码器中的编码速率选择

    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。

    METHOD AND APPARATUS FOR PROMPTING A CELLULAR TELEPHONE USER WITH INSTRUCTIONS
    8.
    发明申请
    METHOD AND APPARATUS FOR PROMPTING A CELLULAR TELEPHONE USER WITH INSTRUCTIONS 审中-公开
    用于提供具有说明书的蜂窝电话用户的方法和装置

    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。

    Codebook re-ordering to reduce undesired packet generation
    9.
    发明授权
    Codebook re-ordering to reduce undesired packet generation 有权
    Codebook重新排序以减少不必要的数据包生成

    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。

    System and method for preparing and sending an electronic mail communication using a wireless communications device
    10.
    发明授权
    System and method for preparing and sending an electronic mail communication using a wireless communications device 有权
    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

    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。