公开(公告)号：US06959036B1

公开(公告)日：2005-10-25

申请号：US09776067

申请日：2001-02-02

申请人： Behrooz Rezvani ,  Dale Smith ,  Sam Heidari ,  Homayoun Shahri

发明人： Behrooz Rezvani ,  Dale Smith ,  Sam Heidari ,  Homayoun Shahri

IPC分类号： H04B1/38 ,  H04L12/56 ,  H04L25/49 ,  H04L27/00 ,  H04L27/26

CPC分类号： H04L27/0012 ,  H04L25/4921 ,  H04L27/2601 ,  H04L2012/5652

摘要： An X-DSL modem supporting multiple X-DSL line codes including discrete multi-tone (DMT) and carrierless phase and amplitude (CAP). The modem includes: components coupled to one another to form a transmit path and a receive path. The components include an encoder component and a Fourier transform component. The encoder component encodes data associated with a CAP communication channel into QAM symbols and encodes data associated with a DMT communication channel into DMT sub-symbols. The Fourier transform component couples to the encoder component on the transmit path for transforming DMT sub-symbols from a frequency-to-time domain and for transforming QAM symbols from the time-to-frequency domain followed by a filtering in the frequency domain and a subsequent transformation back from the frequency-to-time domain to effect a pulse shaping function without requiring a discrete pulse shaping component in the transmit path.

摘要翻译： 支持多个X-DSL线路码的X-DSL调制解调器，包括离散多音（DMT）和无载波相位和幅度（CAP）。 调制解调器包括：彼此耦合以形成发送路径和接收路径的组件。 组件包括编码器组件和傅里叶变换组件。 编码器部件将与CAP通信信道相关联的数据编码为QAM符号，并将与DMT通信信道相关联的数据编码为DMT子符号。 傅立叶变换分量耦合到发送路径上的编码器部件，用于从频域转换DMT子符号，并用于从时域到频域变换QAM符号，随后在频域中进行滤波，并且 从频域到时域的后续变换，以实现脉冲整形功能，而不需要发射路径中的离散脉冲整形分量。

公开(公告)号：US08385975B2

公开(公告)日：2013-02-26

申请号：US12429088

申请日：2009-04-23

申请人： Babak Forutanpour ,  Homayoun Shahri

发明人： Babak Forutanpour ,  Homayoun Shahri

IPC分类号： H04B1/38

CPC分类号： H04L51/046 ,  H04L51/02 ,  H04L51/38 ,  H04M3/53391

摘要： This disclosure describes techniques for providing a wireless communication device with context-based voicemail messaging. In reply to a call, a wireless communication device may select a message based on a context. As an example, a wireless communication system may detect a call directed to a wireless communication device from a caller, generate one of a plurality of reply messages for the caller based on a context of the wireless communication device derived from input information received by at least one input of the wireless communication device, and transmit the generated reply message to the caller. In some cases, the message may be selected based on both context and caller identity. In addition, the message may be selected based at least in part on analysis of a pattern of usage or user activity with respect to the wireless communication device.

摘要翻译： 本公开描述了用于向无线通信设备提供基于上下文的语音邮件消息传送的技术。 响应于呼叫，无线通信设备可以基于上下文来选择消息。 作为示例，无线通信系统可以从呼叫者检测到针对无线通信设备的呼叫，基于从至少接收到的输入信息导出的无线通信设备的上下文生成呼叫者的多个应答消息中的一个 无线通信设备的一个输入，并且将所生成的应答消息发送给呼叫者。 在某些情况下，可以基于上下文和呼叫者身份来选择消息。 此外，可以至少部分地基于对无线通信设备的使用模式或用户活动的分析来选择消息。

公开(公告)号：US20120169608A1

公开(公告)日：2012-07-05

申请号：US12980823

申请日：2010-12-29

申请人： Babak Forutanpour ,  Homayoun Shahri ,  Farhan M. Aziz ,  Maria E. Romera Jolliff ,  Ronen R. Stern

发明人： Babak Forutanpour ,  Homayoun Shahri ,  Farhan M. Aziz ,  Maria E. Romera Jolliff ,  Ronen R. Stern

IPC分类号： G09G5/10 ,  G08B21/00 ,  G06F1/32 ,  G06F3/041

CPC分类号： H04W52/0258 ,  G06F1/1694 ,  G06F1/3212 ,  G06F1/3265 ,  G09G3/342 ,  G09G2330/021 ,  H04M2250/12 ,  H04M2250/22 ,  H04W52/0254 ,  H04W52/0264 ,  H04W52/027 ,  Y02D10/153 ,  Y02D10/174 ,  Y02D70/23

摘要： A particular method includes determining a battery charge value of a battery at a particular time and comparing the battery charge value at the particular time to a threshold battery charge value of a battery usage profile associated with the particular time, where the threshold battery charge value varies over time (e.g., a dynamic threshold). When the battery charge value does not satisfy the threshold battery charge value, the method includes prompting a user to select a power save mode. For example, the power save mode may include activating a different backlight element of a plurality of backlight elements of a display device in response to a motion sensor of a portable electronic device detecting movement of the portable electronic device from a first orientation to a second orientation.

摘要翻译： 特定方法包括在特定时间确定电池的电池电量值，并将特定时间的电池电量值与特定时间相关联的电池使用简档的阈值电池电量值进行比较，其中阈值电池电量值变化 随着时间的推移（例如，动态阈值）。 当电池电量值不满足阈值电池电量值时，该方法包括提示用户选择省电模式。 例如，省电模式可以包括响应于便携式电子设备的运动传感器来检测显示设备的多个背光元件的不同背光元件，该便携式电子设备检测便携式电子设备从第一方向到第二方位的移动 。

公开(公告)号：US08665214B2

公开(公告)日：2014-03-04

申请号：US12980823

申请日：2010-12-29

申请人： Babak Forutanpour ,  Homayoun Shahri ,  Farhan M Aziz ,  Maria E Romera Jolliff ,  Ronen R Stern

发明人： Babak Forutanpour ,  Homayoun Shahri ,  Farhan M Aziz ,  Maria E Romera Jolliff ,  Ronen R Stern

IPC分类号： G06F3/033 ,  G09G5/08 ,  G06F1/32

CPC分类号： H04W52/0258 ,  G06F1/1694 ,  G06F1/3212 ,  G06F1/3265 ,  G09G3/342 ,  G09G2330/021 ,  H04M2250/12 ,  H04M2250/22 ,  H04W52/0254 ,  H04W52/0264 ,  H04W52/027 ,  Y02D10/153 ,  Y02D10/174 ,  Y02D70/23

摘要： A particular method includes determining a battery charge value of a battery at a particular time and comparing the battery charge value at the particular time to a threshold battery charge value of a battery usage profile associated with the particular time, where the threshold battery charge value varies over time (e.g., a dynamic threshold). When the battery charge value does not satisfy the threshold battery charge value, the method includes prompting a user to select a power save mode. For example, the power save mode may include activating a different backlight element of a plurality of backlight elements of a display device in response to a motion sensor of a portable electronic device detecting movement of the portable electronic device from a first orientation to a second orientation.

摘要翻译： 特定方法包括在特定时间确定电池的电池电量值，并将特定时间的电池电量值与特定时间相关联的电池使用简档的阈值电池电量值进行比较，其中阈值电池电量值变化 随着时间的推移（例如，动态阈值）。 当电池电量值不满足阈值电池电量值时，该方法包括提示用户选择省电模式。 例如，省电模式可以包括响应于便携式电子设备的运动传感器来检测显示设备的多个背光元件的不同背光元件，该便携式电子设备检测便携式电子设备从第一方向到第二方位的移动 。

公开(公告)号：US20110081026A1

公开(公告)日：2011-04-07

申请号：US12782147

申请日：2010-05-18

申请人： DINESH RAMAKRISHNAN ,  Homayoun Shahri ,  Song Wang

发明人： DINESH RAMAKRISHNAN ,  Homayoun Shahri ,  Song Wang

IPC分类号： H04B15/00

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： An electronic device for suppressing noise in an audio signal is described. The electronic device includes a processor and instructions stored in memory. The electronic device receives an input audio signal and computes an overall noise estimate based on a stationary noise estimate, a non-stationary noise estimate and an excess noise estimate. The electronic device also computes an adaptive factor based on an input Signal-to-Noise Ratio (SNR) and one or more SNR limits. A set of gains is also computed using a spectral expansion gain function. The spectral expansion gain function is based on the overall noise estimate and the adaptive factor. The electronic device also applies the set of gains to the input audio signal to produce a noise-suppressed audio signal and provides the noise-suppressed audio signal.

摘要翻译： 描述了用于抑制音频信号中的噪声的电子设备。 电子设备包括处理器和存储在存储器中的指令。 电子设备接收输入音频信号，并且基于静态噪声估计，非平稳噪声估计和过量噪声估计来计算总体噪声估计。 电子设备还基于输入信噪比（SNR）和一个或多个SNR限制来计算自适应因子。 还使用频谱扩展增益函数来计算一组增益。 频谱扩展增益函数基于总噪声估计和自适应因子。 电子设备还将该组增益应用于输入音频信号以产生噪声抑制的音频信号并提供噪声抑制的音频信号。

公开(公告)号：US06601158B1

公开(公告)日：2003-07-29

申请号：US09475647

申请日：1999-12-30

申请人： Curtis Abbott ,  Homayoun Shahri

发明人： Curtis Abbott ,  Homayoun Shahri

IPC分类号： G06F1200

CPC分类号： G06F9/30043 ,  G06F9/30101 ,  G06F9/30145 ,  G06F9/30167 ,  G06F9/345 ,  G06F9/3552

摘要： According to one embodiment of the invention, an apparatus that includes a first and second counter both including a count computation circuit and an upper bound circuit. The output of the upper bound circuit of the first counter is coupled to the count computation circuit and upper bound circuit of the second counter. The apparatus also includes a lookup table addressed by the current count value of the first counter, as well as a combining circuit coupled to the output of the lookup table and to receive the current count value of the second counter.

摘要翻译： 根据本发明的一个实施例，一种包括第一和第二计数器的装置，其包括计数计算电路和上限电路。 第一计数器的上限电路的输出耦合到第二计数器的计数计算电路和上限电路。 该装置还包括由第一计数器的当前计数值寻址的查找表以及耦合到查找表的输出并且接收第二计数器的当前计数值的组合电路。

公开(公告)号：US08571231B2

公开(公告)日：2013-10-29

申请号：US12782147

申请日：2010-05-18

申请人： Dinesh Ramakrishnan ,  Homayoun Shahri ,  Song Wang

发明人： Dinesh Ramakrishnan ,  Homayoun Shahri ,  Song Wang

IPC分类号： H04B15/00

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： An electronic device for suppressing noise in an audio signal is described. The electronic device includes a processor and instructions stored in memory. The electronic device receives an input audio signal and computes an overall noise estimate based on a stationary noise estimate, a non-stationary noise estimate and an excess noise estimate. The electronic device also computes an adaptive factor based on an input Signal-to-Noise Ratio (SNR) and one or more SNR limits. A set of gains is also computed using a spectral expansion gain function. The spectral expansion gain function is based on the overall noise estimate and the adaptive factor. The electronic device also applies the set of gains to the input audio signal to produce a noise-suppressed audio signal and provides the noise-suppressed audio signal.

摘要翻译： 描述了用于抑制音频信号中的噪声的电子设备。 电子设备包括处理器和存储在存储器中的指令。 电子设备接收输入音频信号，并且基于静态噪声估计，非平稳噪声估计和过量噪声估计来计算总体噪声估计。 电子设备还基于输入信噪比（SNR）和一个或多个SNR限制来计算自适应因子。 还使用频谱扩展增益函数来计算一组增益。 频谱扩展增益函数基于总噪声估计和自适应因子。 电子设备还将该组增益应用于输入音频信号以产生噪声抑制的音频信号并提供噪声抑制的音频信号。

公开(公告)号：US20100273443A1

公开(公告)日：2010-10-28

申请号：US12429088

申请日：2009-04-23

申请人： Babak Forutanpour ,  Homayoun Shahri

发明人： Babak Forutanpour ,  Homayoun Shahri

IPC分类号： H04M11/04 ,  H04M3/42

CPC分类号： H04L51/046 ,  H04L51/02 ,  H04L51/38 ,  H04M3/53391

摘要： This disclosure describes techniques for providing a wireless communication device with context-based voicemail messaging. In reply to a call, a wireless communication device may select a message based on a context. As an example, a wireless communication system may detect a call directed to a wireless communication device from a caller, generate one of a plurality of reply messages for the caller based on a context of the wireless communication device derived from input information received by at least one input of the wireless communication device, and transmit the generated reply message to the caller. In some cases, the message may be selected based on both context and caller identity. In addition, the message may be selected based at least in part on analysis of a pattern of usage or user activity with respect to the wireless communication device.

摘要翻译： 本公开描述了用于向无线通信设备提供基于上下文的语音邮件消息传送的技术。 响应于呼叫，无线通信设备可以基于上下文来选择消息。 作为示例，无线通信系统可以从呼叫者检测到针对无线通信设备的呼叫，基于从至少接收到的输入信息导出的无线通信设备的上下文生成呼叫者的多个应答消息中的一个 无线通信设备的一个输入，并且将所生成的应答消息发送给呼叫者。 在某些情况下，可以基于上下文和呼叫者身份来选择消息。 此外，可以至少部分地基于对无线通信设备的使用模式或用户活动的分析来选择消息。