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公开(公告)号：WO2004070541A2
公开(公告)日：2004-08-19
申请号：PCT/US2004/002421
申请日：2004-01-29
Applicant: HARRIS CORPORATION
Inventor： CHAMBERLAIN, Mark, W.
IPC: G06F
CPC classification number: G10L19/087 , G10L19/173
Abstract: Vector quantization techniques reduce the effective bit rate to 600 bps while maintaining intelligible speech. Four frames of speech are combined into one frame. The system uses mixed excitation linear prediction speech model parameters to quantized the frame and achieve a fixed rate of 600 bps. The system allows voice communication over bandwidth constrained channels.
Abstract translation: 矢量量化技术将有效比特率降低到600bps，同时保持可理解的语音。 四帧语音组合成一帧。 该系统采用混合激励线性预测语音模型参数对帧进行量化，达到固定速率600bps。 该系统允许通过带宽受限通道进行语音通信。
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2.发明申请ADAPTIVE RATE CODE COMBINING AUTOMATIC REPEAT REQUEST (ARQ) COMMUNICATIONS METHOD AND SYSTEM 审中-公开自适应速率码结合自动重复请求（ARQ）通信方法和系统
公开(公告)号：WO2005074558A2
公开(公告)日：2005-08-18
申请号：PCT/US2005/002787
申请日：2005-02-01
Applicant: HARRIS CORPORATION
Inventor： CHAMBERLAIN, Mark, W.
IPC: H04L1/00
CPC classification number: H04L1/0068 , H04L1/0003 , H04L1/0009 , H04L1/0059 , H04L1/0071
Abstract: A method and system reduces data error in an automatic repeat request (ARQ) communications system. Data is code-combined in a communications session that uses an automatic repeat request protocol by sending alternate phases of an encoder state. The underlying signaling constellation is changed when code-combining performance degrades. An optimal signaling constellation and code rate can be determined from a previous packet acknowledgment (ACK) status or from a look-up table previously determined by use.
Abstract translation: 一种方法和系统减少了自动重复请求（ARQ）通信系统中的数据错误。 数据在使用自动重复请求协议的通信会话中通过发送编码器状态的交替阶段进行代码组合。 当代码组合性能下降时，底层信令星座会发生变化。 可以根据先前的分组确认（ACK）状态或先前通过使用确定的查找表来确定最佳的信令星座和码率。
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公开(公告)号：WO2008118834A1
公开(公告)日：2008-10-02
申请号：PCT/US2008/057974
申请日：2008-03-24
Applicant: HARRIS CORPORATION
Inventor： CHAMBERLAIN, Mark, W.
CPC classification number: G10L19/173 , G10L19/008
Abstract: A method is provided for decoding data streams in a voice communication system. The method includes: receiving two or more data streams having voice data encoded therein; decoding each data stream into a set of speech coding parameters; forming a set of combined speech coding parameters by combining the sets of decoded speech coding parameters, where speech coding parameters of a given type are combined with speech coding parameters of the same type; and inputting the set of combined speech coding parameters into a speech synthesizer.
Abstract translation: 提供了一种用于对语音通信系统中的数据流进行解码的方法。 该方法包括：接收其中编码有语音数据的两个或多个数据流; 将每个数据流解码成一组语音编码参数; 通过组合解码语音编码参数的集合来形成一组组合语音编码参数，其中给定类型的语音编码参数与相同类型的语音编码参数组合; 以及将该组合的语音编码参数输入到语音合成器中。
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4.发明申请SYSTEM AND METHOD FOR ENHANCING BIT ERROR TOLERANCE OVER A BANDWITH LIMITED CHANNEL 审中-公开用于增加BANDWITH有限通道的位错误容忍的系统和方法
公开(公告)号：WO2004070540A2
公开(公告)日：2004-08-19
申请号：PCT/US2004/002420
申请日：2004-01-29
Applicant: HARRIS CORPORATION
Inventor： CHAMBERLAIN, Mark, W.
IPC: G06F
CPC classification number: G10L19/005 , G10L19/038
Abstract: A system and method reduces the effects of the bit-error induced distortion of decoded voice transmission by assigning vectors that are close or similar in Euclidean distance to respective indices that are close in Hamming distance. The system calculates a first distortion sum of the distance error induced by single, double or N bit error possibilities, switches vector assignments and calculates a second distortion sum. If the second sum is less than the first sum the vector swap is maintained.
Abstract translation: 一种系统和方法通过将在欧几里德距离中接近或相似的向量分配给在汉明距离附近的相应索引来减少解码语音传输的比特误差诱导失真的影响。 系统计算由单，双或N位错误可能性引起的距离误差的第一失真和，切换矢量分配并计算第二失真和。 如果第二和小于第一和，则维持矢量互换。
