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    • 41. 发明授权
    • Packet prioritization and associated bandwidth and buffer management techniques for audio over IP
    • 数据包优先级和相关带宽和基于IP的音频缓冲管理技术
    • US08370515B2
    • 2013-02-05
    • US12748094
    • 2010-03-26
    • Christopher R. GentlePaul Roller Michaelis
    • Christopher R. GentlePaul Roller Michaelis
    • G06F15/16
    • H04L65/607H04L29/06027H04L47/10H04L47/12H04L47/2408H04L47/2416H04L47/2433H04L47/283H04L47/31H04L47/32
    • The present invention is directed to voice communication devices in which an audio stream is divided into a sequence of individual packets, each of which is routed via pathways that can vary depending on the availability of network resources. All embodiments of the invention rely on an acoustic prioritization agent that assigns a priority value to the packets. The priority value is based on factors such as whether the packet contains voice activity and the degree of acoustic similarity between this packet and adjacent packets in the sequence. A confidence level, associated with the priority value, may also be assigned. In one embodiment, network congestion is reduced by deliberately failing to transmit packets that are judged to be acoustically similar to adjacent packets; the expectation is that, under these circumstances, traditional packet loss concealment algorithms in the receiving device will construct an acceptably accurate replica of the missing packet. In another embodiment, the receiving device can reduce the number of packets stored in its jitter buffer, and therefore the latency of the speech signal, by selectively deleting one or more packets within sustained silences or non-varying speech events. In both embodiments, the ability of the system to drop appropriate packets may be enhanced by taking into account the confidence levels associated with the priority assessments.
    • 本发明涉及语音通信设备,其中音频流被分成一系列单独的分组,其中每个分组经由可以根据网络资源的可用性而变化的路径被路由。 本发明的所有实施例都依赖于分配优先级值的声音优先级代理。 优先级值基于诸如分组是否包含语音活动以及该分组与序列中的相邻分组之间的声学​​相似度的因素。 也可以分配与优先级值相关联的置信水平。 在一个实施例中,通过故意不发送被判断为与声音相似的邻近分组的分组来减少网络拥塞; 期望的是,在这些情况下,接收设备中的传统分组丢失隐藏算法将构建丢失分组的可接受的准确复制品。 在另一个实施例中,接收设备可以通过选择性地删除持续静音或非变化语音事件中的一个或多个分组来减少其抖动缓冲器中存储的分组数量,并因此减少语音信号的等待时间。 在两个实施例中,可以通过考虑与优先级评估相关联的置信水平来提高系统丢弃适当分组的能力。
    • 48. 发明申请
    • SYSTEM AND METHOD FOR SENDING DATA USING CALLER ID
    • 使用电话号码发送数据的系统和方法
    • US20100290608A1
    • 2010-11-18
    • US12467822
    • 2009-05-18
    • Douglas M. GroverPaul Roller Michaelis
    • Douglas M. GroverPaul Roller Michaelis
    • H04M1/56
    • H04M1/72572H04M1/57H04M3/42042H04M3/42076H04M3/42348H04M3/5116H04M2207/206H04M2242/30
    • A communication system receives data that does not pertain to an attempted initial establishment of a communication. The communication system uses a new message format under an existing analog Caller ID standard. The communication system inserts the data (which can be in addition to existing Caller ID data) into a Caller ID message that uses the new message format. The communication system then sends the Caller ID message to a communication device/Private Branch Exchange (PBX)/contact center that can interpret the new message format.The communication device/PBX/contact center can use the data to further route the communication to a specific telephone and/or can use the data to display information such as Global Positioning System (GPS) coordinates of a cell phone. The data can enhance the capabilities of devices and systems that currently work under the Public Switched Telephone Network (PSTN).
    • 通信系统接收与尝试的初始建立通信无关的数据。 通信系统使用现有模拟来电显示标准下的新消息格式。 通信系统将数据(可以是现有的来电显示数据除外)插入到使用新消息格式的呼叫者ID消息中。 通信系统然后将呼叫者ID消息发送到可以解释新消息格式的通信设备/专用交换机(PBX)/联络中心。 通信设备/ PBX /联络中心可以使用数据进一步将通信路由到特定的电话和/或可以使用数据来显示诸如蜂窝电话的全球定位系统(GPS)坐标的信息。 数据可以增强当前在公共交换电话网(PSTN)下工作的设备和系统的能力。