专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US06954460B2 Method and apparatus for compressing packet headers 有权
标题翻译：用于压缩数据包报头的方法和装置
公开(公告)号：US06954460B2
公开(公告)日：2005-10-11
申请号：US09972270
申请日：2001-10-05
申请人： Alan DeMars
发明人： Alan DeMars
IPC分类号： H04L12/56 , H04L29/06
CPC分类号： H04L65/1043 , H04L29/06027 , H04L65/607 , H04L65/608 , H04L69/04 , H04L69/16 , H04L69/161 , H04L69/22
摘要： The present invention provides a method and apparatus for creating a packet having one or more compressed headers. Call set-up information is received. Thereafter, call data is received and a data portion of the packet is created using the call data. One or more current headers are created using the call data and the call set-up information. The one or more current headers are compressed. The packet is then created by attaching the one or more compressed headers to the data portion of the packet. The one or more compressed headers are created using one or more differences between the one or more current headers and the one or more previous headers. After compression, the one or more current headers are saved as the one or more previous headers.
摘要翻译：本发明提供一种用于创建具有一个或多个压缩报头的分组的方法和装置。接收到呼叫建立信息。此后，接收到呼叫数据，并且使用呼叫数据创建分组的数据部分。使用呼叫数据和呼叫建立信息创建一个或多个当前报头。一个或多个当前标题被压缩。然后通过将一个或多个压缩报头附加到分组的数据部分来创建分组。使用一个或多个当前报头与一个或多个先前报头之间的一个或多个差异来创建一个或多个压缩报头。压缩之后，一个或多个当前标题被保存为一个或多个先前的标题。

22. 发明授权

US06950414B1 Cable carrying communications data and timing data to radio heads 有权
标题翻译：电缆将通信数据和定时数据传送到无线电头
公开(公告)号：US06950414B1
公开(公告)日：2005-09-27
申请号：US09690258
申请日：2000-10-17
申请人： Ossi I. Grohn , Johnny D. Shepherd
发明人： Ossi I. Grohn , Johnny D. Shepherd
IPC分类号： H04B7/005 , H04J3/06 , H04L7/00 , H04Q7/00
CPC分类号： H04J3/0685 , H04L7/0008
摘要： A method and apparatus for providing timing information to radio heads in a wireless communications system. One or more radio heads are connected to a central unit by a respective cable. This cable includes at least two sets of conductors. The first set carries communication data between the central unit and the radio head. This communication data may be user data, such as voice, data, or fax data, and optionally control data. This communication data is transferred between the radio head and the central unit using an asynchronous transmit method. Due to its variable timing of successful receipt, it may be difficult to send highly accurate timing data via asynchronous transmit methods. Instead, a synchronous transmit method may be advantageously employed to send timing data in the present invention. The timing data is sent on the second set of conductors of the same cable using a synchronous transmit method. Thus, each cable of the present invention carries both asynchronous transmissions and synchronous transmissions. The cable may advantageously be a portion of an existing LAN cable plant, and the asynchronous transmit method may be according to an Ethernet protocol. One or more radio heads may be supplied with timing data in this fashion. The timing of radio frequency transmissions from those radio heads may then be based on the supplied timing information, for instance to coordinate the transmissions from multiple radio heads so as to be simultaneous.
摘要翻译：一种用于向无线通信系统中的无线电头提供定时信息的方法和装置。一个或多个无线电头通过相应的电缆连接到中央单元。该电缆包括至少两组导体。第一组在中央单元和无线电头之间传送通信数据。该通信数据可以是诸如语音，数据或传真数据的用户数据，以及可选地控制数据。该通信数据使用异步发送方法在无线电头和中央单元之间传送。由于其成功接收的可变时序，可能难以通过异步发送方式发送高精度的定时数据。相反，可以有利地采用同步发送方法来发送本发明中的定时数据。定时数据使用同步传输方法在相同电缆的第二组导体上发送。因此，本发明的每个电缆同时承载异步传输和同步传输。电缆可以有利地是现有LAN电缆设备的一部分，并且异步传输方法可以根据以太网协议。可以以这种方式向一个或多个无线电头提供定时数据。然后，来自这些无线电头的无线电频率传输的定时可以基于所提供的定时信息，例如，以协调来自多个无线电头的传输以同时进行。

23. 发明授权

US06947385B2 Changing quality of service for voice over IP calls 有权
标题翻译：通过IP呼叫改变服务质量
公开(公告)号：US06947385B2
公开(公告)日：2005-09-20
申请号：US10807939
申请日：2004-03-24
申请人： Eric Havens
发明人： Eric Havens
IPC分类号： H04L29/06 , H04M7/00 , G01R31/08 , H04L12/28 , H04L12/66
CPC分类号： H04L65/1083 , H04L29/06027 , H04L65/80 , H04M7/1275
摘要： Methods and/or systems for changing the quality of service (QoS) and/or type of service for voice over IP communications. A system for changing quality of service for voice over IP communications includes a signal monitoring module for monitoring subscriber inputs representing requests for a QoS change; and a controller for implementing subscriber inputs representing requests for a QoS change. A method for changing the quality of service (QoS) during an ongoing voice over IP communication is featured. A subscriber line is monitored for a subscriber originated request for a change in QoS. When a request is received, QoS of a subscriber communication is converted utilizing codec algorithms.
摘要翻译：用于改变用于IP语音通信的服务质量（QoS）和/或服务类型的方法和/或系统。用于改变用于IP语音通信的服务质量的系统包括用于监视表示对QoS改变的请求的用户输入的信号监控模块; 以及用于实现表示对QoS改变的请求的用户输入的控制器。特征在于在正在进行的IP通信语音中改变服务质量（QoS）的方法。用户线路被监视用于QoS的改变的用户发起的请求。当接收到请求时，使用编解码算法来转换用户通信的QoS。

24. 发明授权

US06944206B1 Rate one coding and decoding methods and systems 有权
标题翻译：对一种编码和解码方法和系统进行评估
公开(公告)号：US06944206B1
公开(公告)日：2005-09-13
申请号：US09718022
申请日：2000-11-20
申请人： Paul W. Dent
发明人： Paul W. Dent
IPC分类号： H04L1/00 , H04B1/707
CPC分类号： H04L1/0057 , H04L1/0054 , H04L1/0059 , H04L1/0065 , H04L1/0069 , H04L1/0071
摘要： Methods and systems are provided for communicating encoded data. L received encoded signal values including soft information are received and transformed to L data symbols. In various embodiments, the L received encoded signal values are demodulated and the demodulated L received encoded signal values are convolutional decoded using a rate one convolutional decoder having only one output symbol per input symbol to provide the L data symbols, wherein the L received encoded signal values are convolutional encoded using a rate one convolutional encoder having only one output symbol per input symbol. In other embodiments of the present invention the L received encoded signal values are transformed using associated spectral energy at a plurality of frequency ranges within a bandwidth of a channel over which the L received encoded signal values are received for at least one of the L received encoded signal values.
摘要翻译：提供了用于传达编码数据的方法和系统。 L接收到包括软信息的编码信号值被接收并变换成L个数据符号。在各种实施例中，L个接收编码信号值被解调，并且解调的L个接收编码信号值被卷积解码，使用一个速率一个卷积解码器，每个输入符号只有一个输出符号，以提供L个数据符号，其中L个接收编码信号值使用仅具有每个输入符号的一个输出符号的速率一卷积编码器进行卷积编码。在本发明的其他实施例中，L个接收编码信号值被使用在频道的带宽内的多个频率范围内使用相关联的频谱能量进行变换，在该频带的带宽内，L个接收的编码信号值被接收到L个接收编码的信号中的至少一个信号值。

25. 发明授权

US06925059B2 Method and apparatus for distributing traffic load in a wireless packet data network 有权
标题翻译：在无线分组数据网络中分配业务负载的方法和装置
公开(公告)号：US06925059B2
公开(公告)日：2005-08-02
申请号：US09852332
申请日：2001-05-09
申请人： Evin Feli , Leonard Lee , Dayong Chen
发明人： Evin Feli , Leonard Lee , Dayong Chen
IPC分类号： H04L12/56 , H04W28/08 , H04W28/18 , H04W48/06 , H04L12/26
CPC分类号： H04W28/18 , H04L47/125 , H04L47/14 , H04W28/08 , H04W48/06
摘要： Method and apparatus for distributing traffic in a wireless packet data network. A capacity flag which is sent on each RF data channel within a cell in a wireless packet data network is toggled between an asserted and an unasserted state according to the period of a timer. Transceiver terminals will only register for a channel while that channel's capacity flag is unasserted; therefore, transceiver terminals register with the various RF channels in a cell in a distributed fashion over time. The invention can be implemented by a computer program product or logic, or a combination of the two installed at the base station for a cell within a wireless data network such as a CDPD network.
摘要翻译：在无线分组数据网络中分配业务的方法和装置。根据定时器的周期，在无线分组数据网络中的小区内的每个RF数据信道上发送的容量标志在被断言状态和未通过状态之间切换。收发器终端只能注册一个信道，而该信道的容量标志是无效的; 因此，收发器终端随着时间的推移以分布式方式与小区中的各种RF信道进行注册。本发明可以通过计算机程序产品或逻辑来实现，或者在基站处安装的两个组合来实现诸如CDPD网络之类的无线数据网络内的小区。

26. 发明授权

US06922434B2 Apparatus and methods for finger delay selection in RAKE receivers 有权
标题翻译： RAKE接收机中手指延迟选择的装置和方法
公开(公告)号：US06922434B2
公开(公告)日：2005-07-26
申请号：US09845950
申请日：2001-04-30
申请人： Yi-Pin Eric Wang , Gregory E. Bottomley , Kenzo Urabe
发明人： Yi-Pin Eric Wang , Gregory E. Bottomley , Kenzo Urabe
IPC分类号： H04B1/7117 , H04B1/712 , H04B1/69
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： Methods of recovering information encoded in a spread spectrum signal transmitted according to a spreading sequence in a communications medium are provided in which a spread spectrum signal is received from the communications medium and correlated with a spreading sequence to produce a plurality of time-offset correlations. Some of these time-offset correlations may be designed to cancel out known interfering signals. A subset of the plurality of time-offsets may then be selected, and corresponding traffic correlations may then be combined using a weighted combination to estimate information encoded in the transmitted spread spectrum signal. Receivers for implementing these methods are also provided.
摘要翻译：提供了恢复在通信介质中根据扩展序列发送的扩频信号中编码的信息的方法，其中从通信介质接收扩频信号并与扩展序列相关联以产生多个时间偏移相关。这些时间偏移相关中的一些可被设计为消除已知的干扰信号。然后可以选择多个时间偏移的子集，然后可以使用加权组合来组合对应的业务相关性，以估计在所发送的扩展频谱信号中编码的信息。还提供了实现这些方法的接收器。

27. 发明授权

US06917629B1 Rate detection in radio communication systems 有权
标题翻译：无线电通信系统中的速率检测
公开(公告)号：US06917629B1
公开(公告)日：2005-07-12
申请号：US09152063
申请日：1998-09-11
申请人： Rajaram Ramésh , Gregory E. Bottomley
发明人： Rajaram Ramésh , Gregory E. Bottomley
IPC分类号： H04L1/00 , H04L1/08 , H04J3/06
CPC分类号： H04L1/0038 , H04L1/0013 , H04L1/0046 , H04L1/0054 , H04L1/0061 , H04L1/08
摘要： An improved system and method for rate detection of transmitted signals is disclosed for use in a IS-95 CDMA downlink. For each speech frame, one of four possible bit rates is used to encode the frame according to the standard. The present invention describes a receiver and various processes that are able to detect which rate was sent without the aid of flag bits or other mode indication information. According to various embodiments of the invention different rate detection processes which can exploit additional code information, such as CRC checks and convolutional coding, are disclosed.
摘要翻译：公开了用于IS-95 CDMA下行链路中的用于传输信号的速率检测的改进的系统和方法。对于每个语音帧，四种可能的比特率之一用于根据标准对帧进行编码。本发明描述了一种接收机和能够检测哪个速率被发送而不借助于标志位或其他模式指示信息的各种过程。根据本发明的各种实施例，公开了可以利用附加码信息（诸如CRC校验和卷积编码）的不同速率检测过程。

28. 发明授权

US06914885B2 Methods, wireless radio receivers, and systems for selecting a data stream from concurrently demodulated radio signals 有权
标题翻译：方法，无线无线电接收机以及用于从同时解调的无线电信号中选择数据流的系统
公开(公告)号：US06914885B2
公开(公告)日：2005-07-05
申请号：US09850248
申请日：2001-05-07
申请人： Prasada Rao , Robert A. Zak
发明人： Prasada Rao , Robert A. Zak
IPC分类号： H04L1/00 , H04L1/20 , G01R31/08 , H04B17/00
CPC分类号： H04L1/203 , H04L1/0045
摘要： A demodulated data stream is selected by concurrently demodulating radio signals to provide a first data stream and a second data stream with the first data stream. A first error level associated with the first data stream is determined. A second error level associated with the second data stream is also determined. The data stream having the better error level can be selected for further processing. Related wireless radio receivers are also disclosed.
摘要翻译：通过同时解调无线电信号以提供具有第一数据流的第一数据流和第二数据流来选择解调数据流。确定与第一数据流相关联的第一错误级别。还确定与第二数据流相关联的第二错误级别。可以选择具有更好错误级别的数据流进行进一步处理。还公开了相关的无线电接收机。

29. 发明授权

US06889034B1 Antenna coupling systems and methods for transmitters 有权
标题翻译：天线耦合系统和发射机的方法
公开(公告)号：US06889034B1
公开(公告)日：2005-05-03
申请号：US09461671
申请日：1999-12-14
申请人： Paul Wilkinson Dent
发明人： Paul Wilkinson Dent
IPC分类号： H01Q5/00 , H01Q5/50 , H01Q11/12 , H04B1/02 , H04B1/44
CPC分类号： H04B1/0458 , H01Q5/50 , H03F1/0294
摘要： Multiple radio channel frequency signals that are modulated with respective information modulation are transmitted from a common antenna at multiple radio frequencies. Multiple modulators are provided, a respective one of which corresponds to a respective one of the radio channel frequencies. Each modulator generates at least one constant amplitude, phase modulated drive signal at the corresponding radio channel frequency from the respective information modulation, such that the at least one constant amplitude, phase modulated drive signal corresponds to the information modulation for the corresponding radio frequency. At least one saturated power amplifier is provided for each of the at least one constant amplitude, phase modulated drive signals. A respective saturated power amplifier is responsive to the corresponding constant amplitude, phase modulated drive signal, to produce a corresponding amplified output signal at an output thereof. A coupling network connects the outputs of the saturated power amplifiers in series, to produce a combined signal that is applied to the common antenna, such that the common antenna radiates the radio channel frequency signals that are modulated with the respective information modulation. In first embodiments, the at least one constant amplitude, phase modulated drive signal is a single constant envelope modulation drive signal, wherein the information modulation is a constant envelope information modulation. In other embodiments, at least two constant amplitude phase modulated drive signals are provided at the corresponding radio channel frequency, such that the at least two constant amplitude, phase modulated drive signals correspond to the information modulation for the corresponding radio frequency.
摘要翻译：通过各种信号调制调制的多个无线信道频率信号以多个无线电频率从公共天线发送。提供多个调制器，其相应的一个对应于无线电信道频率中的相应一个。每个调制器从相应的信息调制器在相应的无线电信道频率处产生至少一个恒定幅度的相位调制的驱动信号，使得至少一个恒定幅度相位调制的驱动信号对应于相应射频的信息调制。为至少一个恒定幅度的相位调制驱动信号中的每一个提供至少一个饱和功率放大器。相应的饱和功率放大器响应于相应的恒定幅度相位调制驱动信号，以在其输出端产生相应的放大输出信号。耦合网络串联连接饱和功率放大器的输出，以产生施加到公共天线的组合信号，使得公共天线辐射用各自信息调制调制的无线电信道频率信号。在第一实施例中，至少一个恒定幅度相位调制驱动信号是单个恒定包络线调制驱动信号，其中信息调制是恒定包络信息调制。在其他实施例中，在相应的无线电信道频率处提供至少两个恒定幅度相位调制的驱动信号，使得至少两个恒定幅度的相位调制驱动信号对应于相应射频的信息调制。

30. 发明授权

US06871061B1 Systems, methods and terminals that obtain coarse position information from satellite radiotelephone systems 失效
标题翻译：从卫星无线电话系统获取粗略位置信息的系统，方法和终端
公开(公告)号：US06871061B1
公开(公告)日：2005-03-22
申请号：US09063720
申请日：1998-04-21
申请人： Havish Koorapaty , Peter D. Karabinis
发明人： Havish Koorapaty , Peter D. Karabinis
IPC分类号： G01S1/00 , G01S5/10 , G01S5/14 , G01S19/25 , H04B7/185 , H04W52/02 , H04W64/00 , H04W84/06 , H04W88/02 , H04M11/04 , H04B7/00 , H04Q7/20 , G01S5/02
CPC分类号： G01S19/06 , G01S5/10 , H04B7/18554 , H04W52/0245 , H04W52/0254 , H04W52/0258 , H04W64/00 , H04W84/06 , H04W88/02 , Y02D70/164 , Y02D70/446
摘要： A mobile radiotelephone terminal having a satellite radiotelephone and a Global Positioning System (GPS) obtains a coarse position of the mobile radiotelephone terminal from satellite radiotelephone system communications. The GPS receiver uses the coarse position to determine an accurate position of the mobile radiotelephone terminal. Accordingly, by obtaining a coarse position from the satellite radiotelephone systems communications, the computation time for the GPS receiver to compute an accurate position of the mobile radiotelephone terminal may be reduced. By allowing a reduction of computation time by the GPS receiver, an accurate position may be obtained more quickly and/or with reduced power.
摘要翻译：具有卫星无线电话机和全球定位系统（GPS）的移动无线电话终端从卫星无线电话系统通信获得移动无线电话终端的粗略位置。 GPS接收机使用粗略位置来确定移动无线电话终端的准确位置。因此，通过从卫星无线电话系统通信获取粗略位置，可以减少GPS接收机计算移动无线电话终端的准确位置的计算时间。通过允许由GPS接收机减少计算时间，可以更快速地和/或以降低的功率获得准确的位置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式