公开(公告)号：US20060104460A1

公开(公告)日：2006-05-18

申请号：US10992584

申请日：2004-11-18

申请人： Ali Behboodian ,  Marc Boillot ,  Pratik Desai ,  Chin Wong

发明人： Ali Behboodian ,  Marc Boillot ,  Pratik Desai ,  Chin Wong

IPC分类号： H03B29/00 ,  H04B15/00 ,  A61F11/06

CPC分类号： G10L21/0208 ,  H04B1/1027

摘要： Systems, an apparatus, and methods are provided for mitigating noise associated with an audio signal. A system (100) for mitigating noise associated with an audio signal includes an estimator module (108). The estimator module determines an estimated level of noise associated with the audio signal. The system also includes an expander module (110). The expander module causes an attenuation of the audio signal if a level of the audio signal is below a signal threshold. The expander module is adaptively tunable so that the attenuation caused (606) by the expander module is based upon the level of noise estimated (602) by the estimator module.

摘要翻译： 提供了用于减轻与音频信号相关联的噪声的系统，装置和方法。 用于减轻与音频信号相关联的噪声的系统（100）包括估计器模块（108）。 估计器模块确定与音频信号相关联的估计噪声水平。 该系统还包括扩展器模块（110）。 如果音频信号的电平低于信号阈值，则扩展器模块导致音频信号的衰减。 扩展器模块是自适应可调的，使得由扩展器模块引起的（606）的衰减基于估计器模块估计的噪声水平（602）。

公开(公告)号：US20060067512A1

公开(公告)日：2006-03-30

申请号：US10925399

申请日：2004-08-25

申请人： Marc Boillot ,  Ali Behboodian ,  Pratik Desai

发明人： Marc Boillot ,  Ali Behboodian ,  Pratik Desai

IPC分类号： H04M9/00

CPC分类号： H04M1/6033 ,  H04M1/72558 ,  H04M19/04

摘要： A telephone (310) and a method for providing outbound audio when the telephone is operating in a speakerphone mode. A first data unit (350) including a first unit type identifier (360) can be received by the telephone. The first unit type identifier can be an indicator of a type of audio data contained in the first data unit. For instance, the first unit type identifier can indicate whether the audio data is music or non-music audio data. If the first unit type identifier has a first value, for example a value indicating that the audio data is music data, unmuted outbound audio reproduced from the first data unit can be provided and voice activity detection can be disabled. Additionally, inbound audio can be muted.

公开(公告)号：US20060025990A1

公开(公告)日：2006-02-02

申请号：US10900736

申请日：2004-07-28

申请人： Marc Boillot ,  Ali Behboodian ,  Pratik Desai

发明人： Marc Boillot ,  Ali Behboodian ,  Pratik Desai

IPC分类号： G10L11/04

CPC分类号： G10L19/09

摘要： The invention concerns a method (300) and system (100) for improving voice quality of a vocoder (138, 158). The method includes the steps of monitoring (312) a pitch of a voice signal (400) at a transmitting unit (110); when the pitch of the voice signal reaches a predetermined threshold (840), shifting (326) the pitch of the voice signal to at least a portion of a predetermined range (810); transmitting (338) the pitch-shifted voice signal to a receiving unit (112); and at the receiving unit, reshifting (342) the pitch-shifted voice signal to a level that compensates the step of shifting the pitch of the voice signal at the transmitting unit.

公开(公告)号：US20050014535A1

公开(公告)日：2005-01-20

申请号：US10623427

申请日：2003-07-18

申请人： Pratik Desai ,  Ali Behboodian ,  Chin Wong

发明人： Pratik Desai ,  Ali Behboodian ,  Chin Wong

IPC分类号： H04M9/08 ,  H04M1/00

CPC分类号： H04M9/082

摘要： The invention provides a cellular telephone or other communications device with intelligence to manage speakerphone operation to more nearly approximate normal conversation, even when using a one-way only transmission mode. The microphone path and speaker path may be continuously monitored using dual voice activity detectors to assess the energy and other characteristics of each channel, and switch between one or the other depending on dynamic criteria. In noisy environments, a hangtime may be applied before permitting switching to avoid premature dropouts. Other criteria used to trigger the seizure of the channel may be adjusted, such as to eliminate a lower threshold below which the speaker path switches out automatically.

摘要翻译： 本发明提供了具有智能的蜂窝电话或其他通信设备，即使当仅使用单向传输模式时，也可以管理扬声器操作以更接近正常对话。 麦克风路径和扬声器路径可以使用双语音活动检测器来连续监测，以评估每个通道的能量和其他特性，并根据动态标准在一个或另一个之间切换。 在嘈杂的环境中，可以在允许切换之前应用挂起时间以避免过早的退出。 可以调整用于触发频道卡扣的其他标准，例如消除较低的阈值，低于该阈值扬声器路径自动切换。

公开(公告)号：US20070121657A1

公开(公告)日：2007-05-31

申请号：US11290048

申请日：2005-11-30

申请人： Marc Boillot ,  Pratik Desai ,  Radu Frangopol ,  Chin Wong

发明人： Marc Boillot ,  Pratik Desai ,  Radu Frangopol ,  Chin Wong

IPC分类号： H04L12/28

CPC分类号： H04M3/42017 ,  H04M3/4872

摘要： The invention concerns a communication device (102) and a method (200) for providing a personalized ring-back to a first user of the first communication device (102), when the first user initiates a phone call with a second user of a second communication device (104). In one arrangement, the method can include the steps of detecting (204) reception of a ring-back signal at the first communication device (102) received from a communication network (108), retrieving (206) a multimedia file in the first communication device (102), and playing (208) the multimedia file in the first communication device (102) for at least the duration of the ring-back signal.

摘要翻译： 本发明涉及一种通信设备（102）和方法（200），用于当第一用户与第二用户的第二用户发起电话呼叫时，向第一通信设备（102）的第一用户提供个性化回铃 通信设备（104）。 在一种布置中，该方法可以包括以下步骤：在从通信网络（108）接收的第一通信设备（102）处检测（204）接收回铃信号，在第一通信中检索（206）多媒体文件 设备（102），并且至少在回铃信号的持续时间内播放（208）第一通信设备（102）中的多媒体文件。

公开(公告)号：US07246059B2

公开(公告)日：2007-07-17

申请号：US10626321

申请日：2003-07-24

申请人： Ali Behboodian ,  Pratik Desai ,  Chin Pan Wong

发明人： Ali Behboodian ,  Pratik Desai ,  Chin Pan Wong

IPC分类号： G10L11/00 ,  G10L21/02

CPC分类号： G10L25/78 ,  G10L19/012 ,  G10L2021/02168

摘要： The invention provides a method and system for dynamically estimating background noise. The system includes a portable communication device, a vocoder, and a voice activated detector. Based on information received by the portable communication device, the vocoder determines parameters related to incoming information including a voicing mode indicative of the periodicity of incoming information. The voice activated detector then compares the voicing mode to a threshold to determine whether a background noise estimate should be updated. The method includes the steps of: receiving a periodicity indicator and a current comfort noise level for an incoming voice frame; comparing the periodicity indicator with a predetermined threshold if the current comfort noise level is equal to a previous comfort noise level; and maintaining a background noise estimate if the periodicity indicator exceeds the predetermined threshold and revising a background noise estimate if the periodicity indicator does not exceed the predetermined threshold.

摘要翻译： 本发明提供一种用于动态估计背景噪声的方法和系统。 该系统包括便携式通信设备，声码器和语音激活检测器。 基于由便携式通信设备接收的信息，声码器确定与输入信息相关的参数，包括指示传入信息的周期性的语音模式。 语音激活检测器然后将语音模式与阈值进行比较，以确定是否应更新背景噪声估计。 该方法包括以下步骤：接收传入语音帧的周期性指示符和当前舒适噪声电平; 如果当前舒适噪声水平等于先前的舒适噪声水平，则将周期性指标与预定阈值进行比较; 以及如果所述周期性指示符超过所述预定阈值并且如果所述周期性指示符不超过所述预定阈值则修改背景噪声估计值，则保持背景噪声估计。

公开(公告)号：US06662027B2

公开(公告)日：2003-12-09

申请号：US09811252

申请日：2001-03-16

申请人： Samuel Han Siong Chia ,  Ali Behboodian ,  Pratik Desai

发明人： Samuel Han Siong Chia ,  Ali Behboodian ,  Pratik Desai

IPC分类号： H04M100

CPC分类号： H04M9/08

摘要： A speakerphone arbitration method is used to eliminate the effects of echo in imperfect telephone circuits. The method assumes that speech energy received at the speaker phone is an echo, unless the speech energy has characteristics that indicate it is not echo, such as the duration of the speech energy, and the time at which the speech energy is received relative to the time when the user of the speakerphone finishes speaking, or pauses while speaking. The method also may allow arbitration if the speech energy is more energetic than a typical echo, regardless of the duration or time when it is received.

公开(公告)号：US20060106603A1

公开(公告)日：2006-05-18

申请号：US10989618

申请日：2004-11-16

申请人： Marc Boillot ,  Pratik Desai ,  Zaffer Merchant

发明人： Marc Boillot ,  Pratik Desai ,  Zaffer Merchant

IPC分类号： G10L15/08

CPC分类号： G10L21/0364 ,  G10L25/90

摘要： A system, wireless device (102) and method improve speaker intelligibility in a multi-party call by receiving a plurality of individual voice signals, determining a pitch contour for each individual voice signal, determining that the pitch contours for at least two of the individual voice signals are within a predetermined range relative to each other, and shifting the pitch of at least one voice signal a predetermined amount for the duration of the call. The pitch of the individual voice is shifted one to approximately five semitones. The method is performed at a central control station (110) prior to summation of the signals, or at an individual receiving unit (204) when three or more wireless devices (102) are communicating without the use of a central control station (110).

摘要翻译： 一种系统，无线设备（102）和方法通过接收多个单独的语音信号来提高多方呼叫中的讲话者清晰度，确定每个单独语音信号的音调轮廓，确定个体中至少两个的音高轮廓 语音信号相对于彼此在预定范围内，并且在呼叫期间将至少一个语音信号的音调移动到预定量。 单个声音的音高被转移到大约五个半音。 当三个或多个无线设备（102）正在通信而不使用中央控制站（110）时，该方法在信号相加之前在中央控制站（110）处执行，或者在单个接收单元（204） 。

公开(公告)号：US20070064681A1

公开(公告)日：2007-03-22

申请号：US11233337

申请日：2005-09-22

申请人： Marc Boillot ,  Pratik Desai ,  Md Islam

发明人： Marc Boillot ,  Pratik Desai ,  Md Islam

IPC分类号： H04L12/66

CPC分类号： H04L43/00 ,  H04W8/26 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0229 ,  Y02D70/25

摘要： A system (100) and method (400) for monitoring a data channel for discontinuous transmission activity can include a monitoring unit (210), in which the monitoring unit can identify a source of modifying the discontinuous transmission activity based on receipt of an identifier packet, and an equalizer (214) coupled to the monitoring unit. When the monitoring unit determines that an identifier packet has been modified by a source over a communication channel, the equalizer can apply a compensatory equalization associated with the identified source to compensate for equalization applied at the source.

摘要翻译： 用于监视用于不连续传输活动的数据信道的系统（100）和方法（400）可以包括监视单元（210），其中监视单元可以基于接收到标识符包来识别修改不连续传输活动的源 以及耦合到所述监视单元的均衡器（214）。 当监视单元确定通过通信信道通过源修改了标识符分组时，均衡器可以应用与所识别的源相关联的补偿均衡以补偿源处的均衡。

公开(公告)号：US11263277B1

公开(公告)日：2022-03-01

申请号：US16177639

申请日：2018-11-01

申请人： Igor Podgorny ,  Faraz Sharafi ,  Matthew Cannon ,  Pratik Desai

发明人： Igor Podgorny ,  Faraz Sharafi ,  Matthew Cannon ,  Pratik Desai

IPC分类号： G06F7/00 ,  G06F17/30 ,  G06F16/9535 ,  G06N20/00 ,  G06F16/242 ,  G06F16/901

摘要： A method for executing a computerized query includes receiving a new query from a user device. The query includes natural language text. Based on a type of user, and using an alternative term generator, a selected data model is selected from among pre-determined data models. The selected data model is particular to the type of user. Each of the pre-determined data models includes a corresponding semantic graph data model that establishes semantic relationships between words. Query words in the natural language text are compared to the selected data model using the alternative term generator to find at least one alternative term. The alternative term has a semantic relationship to a query word in query words. The semantic relationship exceeds a first threshold value. The alternative term is substituted for a query word to form a revised query. The revised query is executed on a search engine using the alternative terms.