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    • 71. 发明申请
    • SYSTEMS AND METHODS FOR DIGITAL STREAM DENTING
    • 用于数字流喷涂的系统和方法
    • US20070115969A1
    • 2007-05-24
    • US11561887
    • 2006-11-20
    • Michael Isnardi
    • Michael Isnardi
    • H04L12/56H04J1/02
    • H04L47/10H04L47/2416H04L47/32H04L65/607H04N21/23608H04N21/2368H04N21/242H04N21/4341H04N21/4344H04N21/64322
    • A method of forming a digital packet stream, the stream including transport packets. The method can include receiving a packet ID in a transport stream, determining if the packet ID includes a video ID, determining if a coded video frame starts a transport packet, and if a coded video frame starts a transport packet, inserting an Internet protocol/user datagram protocol (IP/UDP) header ahead of a transport packet header. The received transport stream can be an MPEG-2 transport stream. A method of forming a digital packet stream can include receiving a packet ID, determining if the packet ID includes a video ID, determining if a coded video frame starts a transport packet; determining a priority of the video frame, and inserting an IP/UDP header ahead of a transport packet header.
    • 一种形成数字分组流的方法,该流包括传输分组。 该方法可以包括在传输流中接收分组ID,确定分组ID是否包括视频ID,确定编码的视频帧是否启动传输分组,并且如果编码的视频帧启动传输分组,则插入因特网协议/ 用户数据报协议(IP / UDP)头部在传输数据包头之前。 所接收的传输流可以是MPEG-2传输流。 形成数字分组流的方法可以包括接收分组ID,确定分组ID是否包括视频ID,确定编码的视频帧是否启动传输分组; 确定视频帧的优先级,以及在传输分组报头之前插入IP / UDP报头。
    • 74. 发明申请
    • MODULATION SCHEME DETECTING APPARATUS AND RELATED METHOD
    • 调制方案检测装置及相关方法
    • US20070047587A1
    • 2007-03-01
    • US11162090
    • 2005-08-29
    • Chun-Ming KuoHo-Chi Huang
    • Chun-Ming KuoHo-Chi Huang
    • H04J1/02
    • H04L27/0012
    • A modulation scheme detecting apparatus for determining a target modulation scheme used for demodulating a received signal and a related method are disclosed. The modulation scheme detecting apparatus includes: a first power estimating module, for evaluating a first nominal power of the received signal rotated by a first predetermined phase according to a first modulation scheme; a second power estimating module, for evaluating a second nominal power of the received signal rotated by a second predetermined phase according to a second modulation scheme; and a decision module, coupled to the first power estimating module and the second power estimating module, for selecting the target modulation from the first and second modulation schemes according to the first nominal power and the second nominal power.
    • 公开了一种用于确定用于解调接收信号的目标调制方案的调制方式检测装置和相关方法。 该调制方式检测装置包括:第一功率估计模块,用于根据第一调制方案评估由第一预定相位旋转的接收信号的第一额定功率; 第二功率估计模块,用于根据第二调制方案评估由第二预定相位旋转的接收信号的第二额定功率; 以及耦合到所述第一功率估计模块和所述第二功率估计模块的决定模块,用于根据所述第一标称功率和所述第二额定功率从所述第一和第二调制方案中选择所述目标调制。
    • 80. 发明授权
    • Multiplexing in a PDH telecommunications network
    • 在PDH电信网络中进行复用
    • US07075952B1
    • 2006-07-11
    • US09698881
    • 2000-10-27
    • Esa TormaHarri Lahti
    • Esa TormaHarri Lahti
    • H04J3/02H04J1/02H04J3/22
    • H04Q11/0478H04J3/1623H04J3/1682H04J2203/0091H04L2012/5672
    • The invention relates to a multiplexing method used in a PDH network. Standard PCM signals are received in the network element, at least some of which are multiplexed on a time-division basis into the same outbound transmission frame, the capacity of the payload portion of the frame substantially corresponding to the capacity required by N PCM signals. In order that ATM cells may be transferred more advantageously than heretofore through an existing PDH network, the multiplexing is implemented as configurable in such a way that the total capacity of the payload portion cab be divided between at least two parts of variable capacity in such a way that each part can be allocated a desired portion of the total capacity of the payload portion in accordance with the current transmission requirement. A part of the payload depending on the desired capacity is allocated to at least one traffic source from a group in which a number of PCM signals constitutes a first traffic source and a number of packet data streams constitutes a second traffic source. The invention is specifically intended for transferring ATM traffic through a PDH network.
    • 本发明涉及在PDH网络中使用的复用方法。 在网元中接收标准PCM信号,其中至少一些在时分基础上被复用到相同的出站传输帧中,该帧的有效载荷部分的容量基本上对应于N个PCM信号所需的容量。 为了使ATM信元可以比现有的PDH网络更有利地传送,多路复用被实现为可配置的,使得有效载荷部分驾驶室的总容量在这样的一个 每个部分可以根据当前传输要求分配有效载荷部分的总容量的期望部分。 根据期望容量的有效载荷的一部分被分配给来自其中多个PCM信号构成第一业务源并且多个分组数据流构成第二业务源的组中的至少一个业务源。 本发明专门用于通过PDH网络传送ATM业务。