公开(公告)号：US20060251130A1

公开(公告)日：2006-11-09

申请号：US11402124

申请日：2006-04-11

申请人： Steven Greer ,  Adrian Boariu

发明人： Steven Greer ,  Adrian Boariu

IPC分类号： H04J3/06

CPC分类号： G10L21/04

摘要： An approach is provided for time-warping of speech. A condition that introduces delay in a communication system is determined to exist. Dynamic time-warping of a voice frame is performed in response to the determined condition for playout to a user.

摘要翻译： 提供了一种用于时间扭曲语言的方法。 确定存在通信系统中的延迟的条件。 响应于确定的用于播放的条件，执行语音帧的动态时间扭曲。

公开(公告)号：US20050137857A1

公开(公告)日：2005-06-23

申请号：US10740863

申请日：2003-12-19

申请人： Steven Greer

发明人： Steven Greer

IPC分类号： G10L19/14 ,  G10L19/00

CPC分类号： G10L19/005 ,  G10L19/16 ,  H04W88/181

摘要： The use of a cellular system's packet data channel for transport of speech communications is enhanced by dynamically controlling the transmission of data packets that were received in error and notified to the transmitter by the receiver in accordance with an algorithm that takes into account a self-generated determination of the perceptual quality importance of the frame and is generated once for each frame by the speech encoder. The calculation of the frame importance is codec-dependent, and depends on a number of attributes associated with each particular frame, including the frame rate (for variable-rate codecs), signal classification, transition characteristics, background noise, previous frame erasures, etc. The selective reduction in transmission and retransmission increases the capacity of the cellular system while maintaining or even improving the quality of the received voice signal.

摘要翻译： 使用蜂窝系统的分组数据信道进行语音通信的传输通过动态地控制错误接收的数据分组的传输并且由接收机根据考虑到自生成的算法而被发送给发射机的传输被增强 确定帧的感知质量重要性，并且由语音编码器针对每个帧产生一次。 帧重要性的计算取决于编解码，并且取决于与每个特定帧相关联的多个属性，包括帧速率（用于可变速率编解码器），信号分类，转换特性，背景噪声，先前帧擦除等 传输和重传的选择性降低增加了蜂窝系统的容量，同时维持或甚至提高了接收到的语音信号的质量。

公开(公告)号：US20060034340A1

公开(公告)日：2006-02-16

申请号：US10918542

申请日：2004-08-12

申请人： Zhigang Rong ,  Lin Ma ,  Steven Greer ,  Zhigang Liu ,  Zhouyue Pi

发明人： Zhigang Rong ,  Lin Ma ,  Steven Greer ,  Zhigang Liu ,  Zhouyue Pi

IPC分类号： H04J3/10

CPC分类号： H04L65/1069 ,  H04L29/06027 ,  H04L65/80 ,  H04W28/06 ,  H04W80/00

摘要： The present invention concerns methods for efficiently supporting Voice over Internet Protocol (VoIP) on the Forward Packet Data Channel (F-PDCH) in CDMA 2000 1xEV-DV systems. Active speech in VoIP is encoded using, for example enhanced variable rate codec (EVRC), which produces 171, 80 and 16 bits per 20 ms of speech for Rate 1, Rate 1/2 and Rate 1/8, respectively. However, about 60% of the time a user is inactive during a speech session, so an inordinate amount of system bandwidth is comprised of rate 1/8 VoIP packets. In one embodiment of the present invention the apparatus of the present invention identifies the Rate 1/8 voice frame packets and discards them. In another embodiment of the present invention, the apparatus of the present invention identifies the Rate 1/8 voice frame packets and selects some of them for further transmission. In both embodiments the efficiency of channel utilization is increased since the amount of channel band width used to communicate relatively little information, e.g., gaps of silence, is decreased.

摘要翻译： 本发明涉及在CDMA 2000 1xEV-DV系统中有效支持前向分组数据信道（F-PDCH）上的因特网协议语音（VoIP）的方法。 VoIP中的活动语音使用例如增强型可变速率编解码器（EVRC）进行编码，其分别为速率1，速率1/2和速率1/8的每20毫秒的语音产生171,80和16比特。 然而，在用户在语音会话期间不活动的时间的大约60％，因此系统带宽的过多是由速率1/8的VoIP分组组成的。 在本发明的一个实施例中，本发明的装置识别速率1/8语音帧分组并丢弃它们。 在本发明的另一实施例中，本发明的装置识别速率1/8的语音帧分组，并选择其中的一些进一步传输。 在两个实施例中，信道利用的效率增加，因为用于传达相对较少的信息的信道带宽的量，例如，沉默的间隙被减少。

公开(公告)号：US20050147131A1

公开(公告)日：2005-07-07

申请号：US10748874

申请日：2003-12-29

申请人： Steven Greer

发明人： Steven Greer

IPC分类号： G10L19/00 ,  G10L19/12 ,  H04J3/12 ,  H04L12/56

CPC分类号： G10L19/00 ,  G10L19/018 ,  G10L19/12 ,  H04W8/26 ,  H04W28/06

摘要： A codebook 58 includes a first subset of M codewords 82 and a second subset of N-M remaining codewords 84. Codewords in the first subset are used for signaling a beginning or end of an in-band stream of data. Designated frames 90 make up the stream and include both speech and data. Each codeword index defines L bits that are used to encode speech. Within the designated frames, D bits of the L bits carry data and the remaining L-D bits are used to search from a truncated number of codewords uniquely identifiable by the L-D bits. The designated frames may be a set number of consecutive frames, or the set number of frames dispersed to recur once every 1/K frames. The number of designated frames may be extended by re-transmitting a codeword from the first subset, or truncated by transmitting a stop codeword that is also within the first subset of codewords. All of the L bits are available to search the codebook in non-designated frames that do not carry data. Data rate and effective codebook size may be selected by the various codewords of the first subset.

摘要翻译： 码本58包括M码字82的第一子集和N-M剩余码字84的第二子集。 第一个子集中的代码字用于发送带内数据流的开始或结束。 指定的帧90组成流并且包括语音和数据。 每个码字索引定义用于编码语音的L比特。 在指定帧内，L位的D位携带数据，剩余的L-D位用于从由L-D位唯一标识的截短数量的码字中进行搜索。 指定的帧可以是连续帧的设定数量，或者每1 / K帧分散以再现一次的帧的设定数量。 可以通过从第一子集重新发送码字来扩展指定帧的数量，或者通过发送也在码字的第一子集内的停止码字被截断。 所有L位都可用于在不携带数据的非指定帧中搜索码本。 可以通过第一子集的各种码字来选择数据速率和有效码本大小。

公开(公告)号：US20060293885A1

公开(公告)日：2006-12-28

申请号：US11424365

申请日：2006-06-15

申请人： Philippe Gournay ,  Milan Jelinek ,  Steven Greer

发明人： Philippe Gournay ,  Milan Jelinek ,  Steven Greer

IPC分类号： G10L19/12

CPC分类号： G10L19/012 ,  G10L19/24

摘要： Apparatus is provided that includes at least one entity for transmitting speech signals in a discontinuous transmission mode including transmitting speech frames interspersed with frames including comfort noise parameters during periods of speech pauses. The entit(ies) include a first entity for estimating a current noise value. In addition, the apparatus includes a second entity for selectively controlling a rate at which the frames including comfort noise parameters are transmitted during the periods of speech pauses based upon the estimated current noise value.

摘要翻译： 提供了包括用于以不连续传输模式发送语音信号的至少一个实体的装置，包括在语音暂停期间包括散布有包括舒适噪声参数的帧的语音帧。 该权限包括用于估计当前噪声值的第一实体。 此外，该设备包括第二实体，用于根据估计的当前噪声值选择性地控制在语音暂停期间发送包括舒适噪声参数的帧的速率。

公开(公告)号：US20060227796A1

公开(公告)日：2006-10-12

申请号：US11401246

申请日：2006-04-11

申请人： Bo Wei ,  Lin Ma ,  Zhigang Rong ,  Steven Greer

发明人： Bo Wei ,  Lin Ma ,  Zhigang Rong ,  Steven Greer

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L47/14 ,  H04L47/2433 ,  H04L47/283 ,  H04L47/50 ,  H04L47/527 ,  H04L47/56 ,  H04W72/1242

摘要： A method, apparatus and system for scheduling data packets in a wireless communications system. The invention includes determining a priority for at least one data packet, wherein determining the priority of the data packet is based at least on a plurality of quality of service factors, wherein each of the plurality of QoS factors has a corresponding weighting factor and the determined priority includes minimum-performance guarantees. The invention further includes scheduling transmission of the at least one data packet based at least on the determined priority.

摘要翻译： 一种用于在无线通信系统中调度数据分组的方法，装置和系统。 本发明包括确定至少一个数据分组的优先级，其中确定数据分组的优先级至少基于多个服务质量因素，其中多个QoS因子中的每一个具有对应的加权因子，并且确定 优先级包括最低性能保证。 本发明还包括至少基于所确定的优先级来调度所述至少一个数据分组的传输。