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21. 发明授权

US08560307B2 Systems, methods, and apparatus for context suppression using receivers 有权
标题翻译：使用接收机进行上下文抑制的系统，方法和装置
公开(公告)号：US08560307B2
公开(公告)日：2013-10-15
申请号：US12129455
申请日：2008-05-29
申请人： Khaled El-Maleh , Nagendra Nagaraja , Eddie L. T. Choy
发明人： Khaled El-Maleh , Nagendra Nagaraja , Eddie L. T. Choy
IPC分类号： G10L21/00
CPC分类号： G10L21/02 , G10L19/012 , G10L21/0208 , G10L21/0272
摘要： Configurations disclosed herein include systems, methods and apparatus that may be applied in a voice communications and/or storage application to remove, enhance, and/or replace the existing context. Example embodiments may decode two sets of encoded frames from an encoded audio signal. The two frame sets may be encoded using different encoding schemes. For example, the bit rate or coding mode may differ between the two encoded frame sets. Based on information from one of the decoded sets of frames, a context component included in a signal represented by the other frame set may be suppressed. Other embodiments may generate an audio context signal within the mobile user terminal, and mix the generated audio signal with another decoded audio signal.
摘要翻译：本文公开的配置包括可以应用于语音通信和/或存储应用中以去除，增强和/或替换现有上下文的系统，方法和装置。示例性实施例可以从经编码的音频信号中解码两组经编码的帧。可以使用不同的编码方案对两个帧集进行编码。例如，比特率或编码模式可以在两个编码的帧集之间不同。基于来自解码的帧集合的信息，可以抑制由另一帧集合表示的信号中包括的上下文分量。其他实施例可以在移动用户终端内生成音频上下文信号，并且将生成的音频信号与另一解码音频信号进行混合。

22. 发明授权

US07289461B2 Communications using wideband terminals 有权
标题翻译：通信使用宽带终端
公开(公告)号：US07289461B2
公开(公告)日：2007-10-30
申请号：US09811056
申请日：2001-03-15
申请人： Andrew P. DeJaco , Khaled El-Maleh
发明人： Andrew P. DeJaco , Khaled El-Maleh
IPC分类号： H04Q7/00 , H04L12/66 , G10L19/00
CPC分类号： H04W88/181
摘要： A call setup procedure is presented to permit vocoder bypass, which will allow the transmission of wideband speech packets between wideband terminals over narrowband transmission constraints. In addition, methods and apparatus are presented that allow the conversion between a wideband tandem-free operation, a narrowband tandem-free operation, and a standard tandem operation.
摘要翻译：提出了呼叫建立过程以允许声码器旁路，这将允许通过窄带传输约束在宽带终端之间传输宽带语音分组。另外，提出了允许在宽带无串联操作，窄带无串联操作和标准串联操作之间进行转换的方法和装置。

23. 发明申请

US20070162279A1 Enhanced Conversion of Wideband Signals to Narrowband Signals 有权
标题翻译：宽带信号增强到窄带信号的转换
公开(公告)号：US20070162279A1
公开(公告)日：2007-07-12
申请号：US11534327
申请日：2006-09-22
申请人： Khaled El-Maleh , Arasanipalai Ananthapadmanabhan , Andrew DeJaco
发明人： Khaled El-Maleh , Arasanipalai Ananthapadmanabhan , Andrew DeJaco
IPC分类号： G10L21/00
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。

24. 发明申请

US20060215752A1 Region-of-interest extraction for video telephony 有权
公开(公告)号：US20060215752A1
公开(公告)日：2006-09-28
申请号：US11182432
申请日：2005-07-15
申请人： Yen-Chi Lee , Khaled El-Maleh , Ming-Chang Tsai
发明人： Yen-Chi Lee , Khaled El-Maleh , Ming-Chang Tsai
IPC分类号： H04N7/12
CPC分类号： H04N7/147 , H04L65/1083 , H04L65/403 , H04L65/4092 , H04L65/602 , H04N7/173 , H04N19/102 , H04N19/137 , H04N19/162 , H04N19/46 , H04N21/4728 , H04N21/4788
摘要： The disclosure is directed to techniques for region-of-interest (ROI) processing for video telephony (VT) applications. According to the disclosed techniques, a recipient device defines ROI information for video information transmitted by a sender device, i.e., far-end video information. The recipient device transmits the ROI information to the sender device. Using the ROI information transmitted by the recipient device, the sender device applies preferential encoding to an ROI within a video scene. ROI extraction may be applied to process a user description of a region of interest (ROI) to generate information specifying the ROI based on the description. The user description may be textual, graphical, or speech-based. An extraction module applies appropriate processing to generated the ROI information from the user description. The extraction module may locally reside with a video communication device, or reside in a distinct intermediate server configured for ROI extraction.

25. 发明申请

US20060039471A1 Encoder-assisted adaptive video frame interpolation 有权
标题翻译：编码器辅助自适应视频帧插值
公开(公告)号：US20060039471A1
公开(公告)日：2006-02-23
申请号：US11112531
申请日：2005-04-22
申请人： Gokce Dane , Khaled El-Maleh , Yen-Chi Lee
发明人： Gokce Dane , Khaled El-Maleh , Yen-Chi Lee
IPC分类号： H04N11/02 , H04N7/12 , H04N11/04 , H04B1/66
CPC分类号： H04N19/176 , H04N19/132 , H04N19/172 , H04N19/46 , H04N19/51 , H04N19/513 , H04N19/587 , H04N19/61
摘要： The disclosure is directed to techniques for encoder-assisted adaptive interpolation of video frames. According to the disclosed techniques, an encoder generates information to assist a decoder in interpolation of a skipped video frame, i.e., an S frame. The information permits the decoder to reduce visual artifacts in the interpolated frame and thereby achieve improved visual quality. The information may include interpolation equation labels that identify selected interpolation equations to be used by the decoder for individual video blocks. As an option, to conserve bandwidth, the equation labels may be transmitted for only selected video blocks that meet a criterion for encoder-assisted interpolation. Other video blocks without equation labels may be interpolated according to a default interpolation technique.
摘要翻译：本公开涉及视频帧的编码器辅助自适应插值技术。根据所公开的技术，编码器生成信息以帮助解码器插入跳过的视频帧，即S帧。该信息允许解码器减少内插帧中的视觉伪影，从而实现改善的视觉质量。该信息可以包括识别用于各个视频块的由解码器使用的所选内插方程的内插方程标签。作为选择，为了节省带宽，可以仅针对满足编码器辅助插值的准则的所选择的视频块来发送等式标签。没有等式标签的其他视频块可以根据默认内插技术进行内插。

26. 发明申请

US20050105615A1 Selective and/or scalable complexity control for video codecs 有权
标题翻译：视频编解码器的选择性和/或可扩展的复杂度控制
公开(公告)号：US20050105615A1
公开(公告)日：2005-05-19
申请号：US10713240
申请日：2003-11-13
申请人： Khaled El-Maleh , Hau Hwang
发明人： Khaled El-Maleh , Hau Hwang
IPC分类号： H04N7/26 , H04N7/12
CPC分类号： H04N19/523 , H04N19/107 , H04N19/139 , H04N19/14 , H04N19/156 , H04N19/176
摘要： Methods and apparatus are presented herein to perform selective and/or scalable complexity control of the video codec, so that the amount of processing resources consumed by a video codec may be increased or reduced. Based on the configurable thresholds set within complexity control algorithms, the nonpredictive and the predictive coding sections of the video codec may be selectively implemented. The configurable thresholds are used to determine whether a desired amount of spatial information, such as texture information or motion information, is present within a video frame.
摘要翻译：这里呈现了用于执行视频编解码器的选择性和/或可缩放复杂度控制的方法和装置，使得可以增加或减少视频编解码器消耗的处理资源量。基于复杂度控制算法中设置的可配置阈值，可以选择性地实现视频编解码器的非预测和预测编码部分。可配置的阈值用于确定视频帧内是否存在期望量的空间信息，例如纹理信息或运动信息。

27. 发明授权

US06631139B2 Method and apparatus for interoperability between voice transmission systems during speech inactivity 有权
公开(公告)号：US06631139B2
公开(公告)日：2003-10-07
申请号：US09774440
申请日：2001-01-31
申请人： Khaled El-Maleh , Arasanipalai K. Ananthapadmanabhan , Andrew P. DeJaco
发明人： Khaled El-Maleh , Arasanipalai K. Ananthapadmanabhan , Andrew P. DeJaco
IPC分类号： H04L1246
CPC分类号： G10L19/173
摘要： The disclosed embodiments provide a method and apparatus for interoperability between CTX and DTX communications systems during transmissions of silence or background noise. Continuous eighth rate encoded noise frames are translated to discontinuous SID frames for transmission to DTX systems. Discontinuous SID frames are translated to continuous eighth rate encoded noise frames for decoding by a CTX system. Applications of CTX to DTX interoperability comprise CDMA and GSM interoperability (narrowband voice transmission systems), CDMA next generation vocoder (The Selectable Mode Vocoder) interoperability with the new ITU-T 4 kbps vocoder operating in DTX-mode for Voice Over IP applications, future voice transmission systems that have a common speech encoder/decoder but operate in differing CTX or DTX modes during speech non-activity, and CDMA wideband voice transmission system interoperability with other wideband voice transmission systems with common wideband vocoders but with different modes of operation (DTX or CTX) during voice non-activity.

28. 发明授权

US09351013B2 Selective and/or scalable complexity control for video codecs 有权
标题翻译：视频编解码器的选择性和/或可扩展的复杂度控制
公开(公告)号：US09351013B2
公开(公告)日：2016-05-24
申请号：US10713240
申请日：2003-11-13
申请人： Khaled El-Maleh , Hau Hwang
发明人： Khaled El-Maleh , Hau Hwang
IPC分类号： H04N7/12 , H04N19/523 , H04N19/139 , H04N19/176 , H04N19/107 , H04N19/14 , H04N19/156
CPC分类号： H04N19/523 , H04N19/107 , H04N19/139 , H04N19/14 , H04N19/156 , H04N19/176
摘要： Methods and apparatus are presented herein to perform selective and/or scalable complexity control of the video codec, so that the amount of processing resources consumed by a video codec may be increased or reduced. Based on the configurable thresholds set within complexity control algorithms, the nonpredictive and the predictive coding sections of the video codec may be selectively implemented. The configurable thresholds are used to determine whether a desired amount of spatial information, such as texture information or motion information, is present within a video frame.
摘要翻译：这里呈现了用于执行视频编解码器的选择性和/或可缩放复杂度控制的方法和装置，使得可以增加或减少视频编解码器消耗的处理资源量。基于复杂度控制算法中设置的可配置阈值，可以选择性地实现视频编解码器的非预测和预测编码部分。可配置的阈值用于确定视频帧内是否存在期望量的空间信息，例如纹理信息或运动信息。

29. 发明授权

US08554551B2 Systems, methods, and apparatus for context replacement by audio level 有权
标题翻译：通过音频级别进行上下文替换的系统，方法和装置
公开(公告)号：US08554551B2
公开(公告)日：2013-10-08
申请号：US12129483
申请日：2008-05-29
申请人： Nagendra Nagaraja , Khaled El-Maleh , Eddie L. T. Choy
发明人： Nagendra Nagaraja , Khaled El-Maleh , Eddie L. T. Choy
IPC分类号： G10L21/00
CPC分类号： G10L21/02 , G10L19/012 , G10L21/0208 , G10L21/0272
摘要： Configurations disclosed herein include systems, methods, and apparatus that may be applied in a voice communications and/or storage application to remove, enhance, and/or replace the existing context. Enhancing the context of a voice communication may first include suppressing an existing context component from the digital audio signal to obtain a context suppressed signal. This signal may then be mixed with a new context signal to create a context enhanced signal, which may then be encoded before transmission. When this new context enhanced signal includes a speech component, it may be encoded and transmitted at a particular bit rate. When the context enhanced signal does not include a speech component, it may also be encoded at a similar bit rate. However, depending on the state of a process control signal, portions of a digital audio signal that lack a speech component may also be transmitted at a lower bit rate.
摘要翻译：本文公开的配置包括可以应用于语音通信和/或存储应用中以去除，增强和/或替代现有上下文的系统，方法和装置。增强语音通信的上下文可以首先包括从数字音频信号中抑制现有上下文成分以获得上下文抑制信号。然后可以将该信号与新的上下文信号混合以产生上下文增强信号，然后可以在传输之前进行编码。当该新的上下文增强信号包括一个语音分量时，它可以被编码并以特定比特率发送。当上下文增强信号不包括语音分量时，也可以以相似的比特率进行编码。然而，根据处理控制信号的状态，也可以以较低的比特率发送缺少语音分量的数字音频信号的部分。

30. 发明授权

US07698132B2 Sub-sampled excitation waveform codebooks 有权
标题翻译：次采样激励波形码本
公开(公告)号：US07698132B2
公开(公告)日：2010-04-13
申请号：US10322245
申请日：2002-12-17
申请人： Ananthapadamanabhan A. Kandhadai , Sharath Manjunath , Khaled El-Maleh
发明人： Ananthapadamanabhan A. Kandhadai , Sharath Manjunath , Khaled El-Maleh
IPC分类号： G10L19/00 , G10L19/12 , G10L21/02
CPC分类号： G10L19/20 , G10L19/12 , G10L19/22 , G10L2019/0004
摘要： Methods and apparatus are presented for reducing the number of bits needed to represent an excitation waveform. An acoustic signal in an analysis frame is analyzed to determine whether it is a band-limited signal. A sub-sampled sparse codebook is used to generate the excitation waveform if the acoustic signal is a band-limited signal. The sub-sampled sparse codebook is generated by decimating permissible pulse locations from the codebook track in accordance with the frequency characteristic of the acoustic signal.
摘要翻译：提出了用于减少表示激励波形所需的位数的方法和装置。分析分析帧中的声信号以确定其是否是带限信号。如果声信号是带限信号，则使用子采样稀疏码本来产生激励波形。通过根据声信号的频率特性对来自码本磁道的允许脉冲位置进行抽取，产生子采样稀疏码本。

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