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1. 发明授权

US06282196B1 Dynamic build-out approach for use in packet voice systems 失效
标题翻译：用于分组语音系统的动态构建方法
公开(公告)号：US06282196B1
公开(公告)日：2001-08-28
申请号：US08900000
申请日：1997-07-24
申请人： Terry Gregory Lyons , Kotikalapudi Sriram , Yung-Terng Wang
发明人： Terry Gregory Lyons , Kotikalapudi Sriram , Yung-Terng Wang
IPC分类号： H04L1256
CPC分类号： H04Q11/0478 , H04L2012/5656 , H04L2012/5671 , H04L2012/5681
摘要： In a packet voice system, a dynamic build-out delay approach in a receiver during the duration of a call. In particular, the build-out delay is applied at least twice during the duration of the call. In one embodiment, a packet voice system includes an ATM Adaptation Layer Type 2 (AAL-2) and Service Specific Convergence Sublayer (SSCS) System. The receiver portion of the SSCS System recovers AAL-2 packets and plays back the compressed audio to a voice decoding element. In providing playback, the receiver applies the build-out delay at the start of each talk-spurt. The voice decoding element provides an uncompressed audio stream. In another embodiment, the receiver portion of the SSCS System applies the build-out delay at the start of the each talk-spurt as a function of the length of the previous silence interval.
摘要翻译：在分组语音系统中，在呼叫期间在接收机中的动态建立延迟方法。特别地，在呼叫期间，建立延迟至少应用两次。在一个实施例中，分组语音系统包括ATM适配层类型2（AAL-2）和服务特定会聚子层（SSCS）系统。 SSCS系统的接收器部分恢复AAL-2数据包，并将压缩音频回放到语音解码元素。在提供播放时，接收机将在每次通话突发开始时应用建立延迟。语音解码元件提供未压缩音频流。在另一个实施例中，SSCS系统的接收机部分根据先前的静默间隔的长度，在每个通话突发的开始处施加建立延迟。

2. 发明授权

US6075798A Extended header for use in ATM adaptation layer type 2 packets 失效
标题翻译：用于ATM适配层类型2数据包的扩展报头
公开(公告)号：US6075798A
公开(公告)日：2000-06-13
申请号：US880181
申请日：1997-06-20
申请人： Terry Gregory Lyons , Kotikalapudi Sriram
发明人： Terry Gregory Lyons , Kotikalapudi Sriram
IPC分类号： H04L12/56 , H04Q11/04 , H04J3/24
CPC分类号： H04Q11/0478 , H04L2012/5616 , H04L2012/5656 , H04L2012/5671
摘要： A packet voice system includes an ATM Adaptation Layer Type 2 (AAL-2) and Service Specific Convergence Sublayer (SSCS) System comprising a transmitter and a receiver. A portion of the 32 codepoints of the five bit RES (or UUI) field of the AAL-2 header are predefined to indicate an extended header. This a prior definition is stored in tables in both the transmitter and the receiver. The extended header itself comprises an additional octet appended to the AAL-2 header. A sequence number is normally carried in the RES field for the packet stream of voice calls that require sequence numbers. When the extended header is used, the sequence number is part of the extended header and thus messages are conveyed from the transmitter to the receiver without causing an interruption to sequence number assignment messages The transmitter dynamically uses the extended header and discontinues use of the extended header after a predefined duration of time or upon receiving an acknowledgment from the receiver.
摘要翻译：分组语音系统包括包括发射机和接收机的ATM适配层类型2（AAL-2）和业务特定会聚子层（SSCS）系统。 AAL-2头部的5位RES（或UUI）字段的32个代码点中的一部分被预先定义以指示扩展头。这个先前的定义存储在发射机和接收机中的表中。扩展报头本身包括附加到AAL-2报头的附加八位字节。序列号通常在需要序列号的语音呼叫的分组流的RES字段中携带。当使用扩展报头时，序列号是扩展报头的一部分，因此消息从发送器传送到接收器，而不会导致序列号分配消息的中断。发送器动态地使用扩展报头并停止使用扩展报头在预定义的持续时间之后或在从接收机接收到确认之后。

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