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    • 1. 发明授权
    • Methods and devices for relieving congestion in hop-by-hop routed packet networks
    • 用于缓解逐跳路由分组网络拥塞的方法和设备
    • US06831895B1
    • 2004-12-14
    • US09314107
    • 1999-05-19
    • Hongbin JiMuralidharan Sampath KodialamYung-Terng Wang
    • Hongbin JiMuralidharan Sampath KodialamYung-Terng Wang
    • H04J300
    • H04L45/38H04L45/00H04L45/122H04L45/123H04L45/20H04L45/22
    • Congestion across links in a network, such as the Internet, is reduced by diverting traffic from the congested link to alternative, shortest paths by adjusting splitting factors associated with the congested and alternative links. The alternative shortest paths comprise equal cost paths. Alternatively, adjustments occur after the creation of additional equal cost paths/shortest paths if none are initially available within the network. Unique programs control the adjustment of the splitting factors and the creation of the additional shortest paths. The programs make use of both existing, real networks and constructed, virtual networks in conjunction with novel traffic flow relationships to divert traffic from a congested link without causing further congestion within the network. Another unique program deletes shortest paths once used to accept traffic diverted from a congested link when traffic in the network decreases.
    • 通过调整与拥塞和替代链路相关联的分解因子,将流量从拥塞链路转移到备选最短路径,从而减少网络中诸如因特网之间的链路的拥塞。 替代的最短路径包括相等的成本路径。 或者,如果网络中最初没有可用的附加成本路径/最短路径,则在创建额外的等价路径/最短路径之后进行调整。 独特的程序控制分割因子的调整和附加最短路径的创建。 这些程序利用现有的,实际的网络和构建的虚拟网络结合新的业务流量关系来转发来自拥塞的链路的业务,而不会在网络内造成进一步的拥塞。 当网络中的流量减少时,另一个独特的程序会删除一次用于接收从拥塞链路转发的流量的最短路径。
    • 2. 发明授权
    • Digital broadcast receiver
    • 数字广播接收机
    • US06804259B1
    • 2004-10-12
    • US09558167
    • 2000-04-26
    • Seiki Onagawa
    • Seiki Onagawa
    • H04J300
    • H04N21/4263H04N21/434H04N21/4344
    • A digital broadcast receiver capable of simultaneously inputting packet data of a plurality of channels which may have the same ID is disclosed. A converter converts the PID of stream data inputted from a demodulator into unique PID. The stream data converted by the converter and stream data inputted from another demodulator are multiplexed to a single stream of data. The single stream of data is divided into to-be-decoded packets, first packets having converted PIDs, and second packets inputted from the other demodulator. The converted PID of a first packet is converted to the original PID. The first packets and second packets outputted by the stream divider are separately stored in a memory.
    • 公开了能够同时输入可能具有相同ID的多个信道的分组数据的数字广播接收机。 A转换器将从解调器输入的流数据的PID转换成唯一的PID。 由转换器转换的流数据和从另一解调器输入的流数据被复用到单个数据流。 单个数据流被分成待解码的分组,具有转换的PID的第一分组和从另一个解调器输入的第二分组。 第一个分组的转换后的PID转换为原始PID。 流分配器输出的第一个分组和第二个分组分别存储在一个存储器中。
    • 6. 发明授权
    • Pseudolite-augmented GPS for locating wireless telephones
    • 用于定位无线电话的伪造增强型GPS
    • US06771625B1
    • 2004-08-03
    • US09612920
    • 2000-07-10
    • Robert E. Beal
    • Robert E. Beal
    • H04J300
    • H04B7/18552G01S5/0027G01S5/0045G01S5/145G01S19/10G01S19/11G01S19/46
    • Ground-based pseudolites support accurate determination of mobile receiver locations by broadcasting CDMA signals interleaved by a TDMA system. Pseudolites synchronize signal transmissions with an accurate timing reference, such as can be derived from GPS satellites. Adjacent pseudolites broadcast CDMA signals at different times, eliminating near-far signal interference between pseudolites. A mobile receiver, typically a cellular telephone, receives and enables determination of times of arrival (TOA) of the pseudolite signals. A location processor associated with the mobile receiver may access an internal database of pseudolite locations, or pseudolite location information may be encoded in pseudolite transmissions. The location processor uses pseudolite location information and TOA to determine mobile receiver location. The TDMA pseudolite-based system may augment the GPS to provide more accurate location information than is available from the GPS alone.
    • 基于地面的伪卫星通过广播由TDMA系统交织的CDMA信号来支持移动接收机位置的准确确定。 伪卫星使用精确的定时参考来同步信号传输,例如可以从GPS卫星导出。 相邻的伪卫星在不同时间广播CDMA信号,消除伪卫星之间的近距离信号干扰。 移动接收机(通常为蜂窝电话)接收并使能确定伪卫星信号的到达时间(TOA)。 与移动接收机相关联的位置处理器可以访问伪卫星位置的内部数据库,或者伪卫星位置信息可以在伪卫星传输中被编码。 位置处理器使用伪卫星位置信息和TOA来确定移动接收机位置。 基于TDMA伪卫星的系统可以增加GPS以提供比单独的GPS可用的更准确的位置信息。
    • 8. 发明授权
    • Multiplexing method and transceiver
    • 复用方法和收发器
    • US06763010B1
    • 2004-07-13
    • US09331994
    • 1999-07-26
    • Olli PiirainenKari Niemelä
    • Olli PiirainenKari Niemelä
    • H04J300
    • H04L5/12H04B7/2643H04L5/22
    • The invention relates to a multiplexing method and a transceiver used in a TDMA radio system. The transceiver sets up a connection to another transceiver by transmitting modulated signals in time slots. The transceiver comprises coding means for channel-coding a signal that consists of bits and that is formed into a communication signal, and interleaving means for interleaving the bits of the channel-coded Signal into blocks of a predetermined size. The transceiver also comprises multiplexing means that receive blocks from the interleaving means and that multiplex the interleaved blocks of at least two channel-coded signals together. The transceiver further comprises modulation means for modulating the blocks multiplexed by the multiplexing means with at least four-level modulation before the modulated signal blocks are transmitted as a communication signal in a time slot, so that the transmission speed of the communication signal and the number of the connections to be established can be increased.
    • 本发明涉及在TDMA无线电系统中使用的复用方法和收发机。 收发器通过在时隙中发送调制信号来建立与另一收发器的连接。 收发器包括用于对由比特构成并形成通信信号的信号进行信道编码的编码装置,以及用于将信道编码信号的比特交织成预定大小的块的交织装置。 该收发机还包括从交织装置接收块并将至少两个信道编码信号的交织块复用在一起的复用装置。 收发器还包括调制装置,用于在调制信号块作为通信信号在时隙中发送之前,用至少四级调制来调制由多路复用装置多路复用的块,从而通信信号的传输速度和数量 要建立的连接可以增加。
    • 10. 发明授权
    • Reception time of messages in access channels of TDMA mobile communication system controlled by transmitting device
    • 由发送设备控制的TDMA移动通信系统的接入信道中的消息的接收时间
    • US06707807B1
    • 2004-03-16
    • US09446059
    • 1999-12-16
    • Christian Menzel
    • Christian Menzel
    • H04J300
    • H04W56/0085H04W92/10
    • In methods for signal transmission, a first radio burst is inventively transmitted in a time slot of the radio interface, in which a transmission-side synchronization of the transmission of the first radio burst occurs, so that the first radio burst arrives at the receiving radio station at a predetermined point in time within the time slot. At least one second radio burst that can be interpreted separately from the first radio burst is transmitted in the same time slot. The invention can be utilized for designing the access method (random access) in packet data services (GPRS) of the GSM mobile radio telephone system or in a TDD transmission mode of the third mobile radio telephone generation. This method may also be used to transmit many very short messages.
    • 在信号传输方法中,在无线接口的时隙中发明地发送第一无线电突发,其中发生第一无线电突发的发送的发送侧同步,使得第一无线电突发到达接收无线电 在时隙内的预定时间点。 可以在相同的时隙中发送可以与第一无线电突发分开解释的至少一个第二无线电突发。 本发明可用于设计GSM移动无线电话系统的分组数据业务(GPRS)或第三移动无线电话生成的TDD传输模式中的接入方法(随机接入)。 该方法也可用于传送许多非常短的消息。