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    PACKET SPREAD-SPECTRUM RECEIVER
    31.
    发明申请
    PACKET SPREAD-SPECTRUM RECEIVER 审中-公开
    分组扩频接收机

    公开(公告)号：US20050281319A1

    公开(公告)日：2005-12-22

    申请号：US11210849

    申请日：2005-08-25

    申请人： Donald Schilling

    发明人： Donald Schilling

    IPC分类号： H04B1/707 ,  H04B1/7093 ,  H04B7/212 ,  H04B7/216 ,  H04B15/00 ,  H04J13/00 ,  H04J13/10 ,  H04K1/00 ,  H04L27/30 ,  H04B1/713

    CPC分类号： H04B1/707 ,  H04B1/7093 ,  H04J13/00 ,  H04J13/0022 ,  H04J13/10

    摘要： A system and method for encoding and transmitting data with a spread-spectrum packet-switched system. Data to be transmitted by a packet transmitter are encoded for privacy and to restrict intelligent receipt of the data to the intended recipient. The encoded data is demultiplexed into sub-data-sequence signals which are spread-spectrum processed and then combined as a multichannel spread-spectrum signal. The multichannel spread-spectrum signal is concatenated with a header to output a packet-spread-spectrum signal which is transmitted over radio waves to a packet receiver. The packet receiver obtains timing for the multichannel spread-spectrum signal from the header. The multichannel spread-spectrum signal is then despread and multiplexed as received-encoded data. The received-encoded data is decoded by the intended recipient and stored in a receiver memory for output.

    摘要翻译： 一种利用扩频分组交换系统对数据进行编码和发送的系统和方法。 由数据包发送器发送的数据被编码为隐私并且将数据的智能接收限制到预期的接收者。 编码数据被解复用为子数据序列信号，其被扩频处理，然后被组合为多通道扩频信号。 多信道扩频信号与报头相连，以将通过无线电波传输的分组扩展频谱信号输出到分组接收机。 分组接收机从报头获得多信道扩频信号的定时。 然后将多通道扩频信号解扩和复用为接收编码数据。 接收编码的数据由预期接收者解码并存储在接收机存储器中用于输出。

    Receiver
    32.
    发明授权
    Receiver 失效
    接收器

    公开(公告)号：US06956892B2

    公开(公告)日：2005-10-18

    申请号：US09878861

    申请日：2001-06-11

    申请人： Juha Ylitalo

    发明人： Juha Ylitalo

    IPC分类号： H04B1/707 ,  H04B7/04 ,  H04L27/30

    CPC分类号： H04B1/7075 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/0408 ,  H04B7/0491 ,  H04B2201/709727

    摘要： A receiver receives signals which are at least partially known and which have followed a plurality of different paths to said receiver. The receiver has an arrangement for dividing the area of coverage of said receiver into a plurality of sections. A plurality of receiving units are provided to process a different one of said signals to identify the at least partially known part of said signal. A controller is coupled to the output of said dividing arrangement for selecting the signals which are to be allocated to the respective receiving units and an interference removing arrangement is coupled to the output of the receiver units to remove interference.

    摘要翻译： 接收机接收至少部分已知的信号，并且已经遵循到所述接收机的多条不同路径。 接收机具有用于将所述接收机的覆盖区域划分成多个部分的布置。 提供多个接收单元以处理不同的一个所述信号以识别所述信号的至少部分已知的部分。 控制器耦合到所述分配装置的输出端，用于选择要分配给各个接收单元的信号，并且干扰去除装置耦合到接收机单元的输出以消除干扰。

    Determining correlations of received sequences to multiple known sequences in a communications system
    33.
    发明授权
    Determining correlations of received sequences to multiple known sequences in a communications system 失效
    确定通信系统中接收到的序列与多个已知序列的相关性

    公开(公告)号：US06954489B2

    公开(公告)日：2005-10-11

    申请号：US09753913

    申请日：2001-01-02

    申请人： Lars Svensson ,  Bengt Lindoff

    发明人： Lars Svensson ,  Bengt Lindoff

    IPC分类号： G06F17/15 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

    CPC分类号： G06F17/15

    摘要： A method, system, and apparatus enables interfering signals in a communications system to be efficiently identified using correlation calculations. Once identified, the interfering signals may be rejected and removed from further processing in a receiver. The number of mathematical operations required to determine correlates of multiple training sequences to received sequences (e.g., at multiple offsets) may be reduced by up to eighty percent (80%) in a Global System for Mobile Communications (GSM) implementation. In accordance with certain embodiments, a correlation equation is manipulated, for example, to eliminate certain products by ensuring that they equate to zero, to eliminate redundant calculations by recognizing repeated subsequences, to eliminate common subexpressions, to determine a negative of a correlation result, etc. The manipulated correlation equation is then utilized within a receiver.

    摘要翻译： 一种方法，系统和装置能够使用相关计算有效地识别通信系统中的干扰信号。 一旦被识别，干扰信号可能被拒绝并从接收机中的进一步处理中去除。 在全球移动通信系统（GSM）实施中，确定多个训练序列与接收序列（例如，多个偏移量）的相关性所需的数学运算的数量可以减少高达百分之八十（80％）。 根据某些实施例，例如通过确定它们等于零来操纵相关方程来消除某些产品，以通过识别重复的子序列来消除冗余计算，消除共同的子表达式，以确定相关结果的否定， 然后在接收机内利用操纵的相关方程。

    Soft-decision trellis-coded differential frequency-hopped spread spectrum (DFHSS)
    34.
    发明授权
    Soft-decision trellis-coded differential frequency-hopped spread spectrum (DFHSS) 有权
    软决策网格编码差分跳频扩频（DFHSS）

    公开(公告)号：US06954482B2

    公开(公告)日：2005-10-11

    申请号：US10422340

    申请日：2003-04-24

    申请人： Diane G. Mills ,  Cory S. Myers ,  Geoffrey S. Edelson ,  David L. Herrick

    发明人： Diane G. Mills ,  Cory S. Myers ,  Geoffrey S. Edelson ,  David L. Herrick

    IPC分类号： H04B1/713 ,  H04L1/00 ,  H04L27/30

    CPC分类号： H04L1/006 ,  H04B1/713 ,  H04B2001/7152 ,  H04L1/0054

    摘要： A method and system begin at a random node of a trellis model having a set of at least two axes, wherein one axis corresponds to time and a second axis corresponds to frequency, a set of M states, corresponding to a set of all possible frequencies that may be transmitted by the system, and branches leaving each state, that terminate at allowable transmit frequencies for a next frequency hop. The number of branches leaving each state is dependent on the number of encoded bits per hop. Next, B bits of data are passed to a buffer, where B is the number of bits that will be transmitted per frequency hop. The method and system then combine the B bits of data with information for previously selected frequencies to select a current frequency, transmit the selected frequency, and feedback the currently selected frequency information to be used as previously selected frequency information when selecting a next frequency.

    摘要翻译： 一种方法和系统从具有一组至少两个轴的网格模型的随机节点开始，其中一个轴对应于时间，第二轴对应于频率，一组M个状态，对应于一组所有可能的频率 可以由系统发送，并且离开每个状态的分支，以可允许的发射频率终止下一个跳频。 离开每个状态的分支数取决于每跳的编码比特数。 接下来，将B位数据传送到缓冲器，其中B是每跳频将被发送的位数。 该方法和系统然后将B位数据与先前选择的频率的信息组合以选择当前频率，发送所选择的频率，并且在选择下一个频率时反馈当前选择的频率信息以用作先前选择的频率信息。

    Packet-switched spread-spectrum system
    35.
    发明授权
    Packet-switched spread-spectrum system 有权
    分组交换扩频系统

    公开(公告)号：US06940841B2

    公开(公告)日：2005-09-06

    申请号：US09793433

    申请日：2001-02-27

    申请人： Donald L. Schilling

    发明人： Donald L. Schilling

    IPC分类号： H04B1/707 ,  H04B1/7093 ,  H04B7/212 ,  H04B7/216 ,  H04B15/00 ,  H04J13/00 ,  H04J13/10 ,  H04K1/00 ,  H04L27/30 ,  H04B1/69

    CPC分类号： H04B1/707 ,  H04B1/7093 ,  H04J13/00 ,  H04J13/0022 ,  H04J13/10

    摘要： A system and method for encoding and transmitting data with a spread-spectrum packet-switched system. Data to be transmitted by a packet transmitter are encoded for privacy and to restrict intelligent receipt of the data to the intended recipient. The encoded data is demultiplexed into sub-data-sequence signals which are spread-spectrum processed and then combined as a multichannel spread-spectrum signal. The multichannel spread-spectrum signal is concatenated with a header to output a packet-spread-spectrum signal which is transmitted over radio waves to a packet receiver. The packet receiver obtains timing for the multichannel spread-spectrum signal from the header. The multichannel spread-spectrum signal is then despread and multiplexed as received-encoded data. The received-encoded data is decoded by the intended recipient and stored in a receiver memory for output.

    摘要翻译： 一种利用扩频分组交换系统对数据进行编码和发送的系统和方法。 由数据包发送器发送的数据被编码为隐私并且将数据的智能接收限制到预期的接收者。 编码数据被解复用为子数据序列信号，其被扩频处理，然后被组合为多通道扩频信号。 多信道扩频信号与报头相连，以将通过无线电波传输的分组扩展频谱信号输出到分组接收机。 分组接收机从报头获得多信道扩频信号的定时。 然后将多通道扩频信号解扩和复用为接收编码数据。 接收编码的数据由预期接收者解码并存储在接收机存储器中用于输出。

    Predistortion type distortion compensation apparatus
    36.
    发明授权
    Predistortion type distortion compensation apparatus 有权
    预失真型失真补偿装置

    公开(公告)号：US06925106B2

    公开(公告)日：2005-08-02

    申请号：US09880958

    申请日：2001-06-15

    申请人： Masato Horaguchi ,  Naoki Hongo ,  Takashi Uchida ,  Masaki Suto ,  Toshio Takada

    发明人： Masato Horaguchi ,  Naoki Hongo ,  Takashi Uchida ,  Masaki Suto ,  Toshio Takada

    IPC分类号： H03F1/32 ,  H04B1/04 ,  H04B1/707 ,  H04J13/00 ,  H04L27/30

    CPC分类号： H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2201/3233

    摘要： To update the control value to a value of higher precision in a predistortion type distortion compensation apparatus for compensating the distortion occurring in an amplifier for amplifying an input signal by the control using a control value corresponding to the level of the input signal.Distortion generating means (1) generates distortion in an input signal, input signal level detecting means (3) detects the level of the input signal, distortion control means (4) controls the distortion generated by the distortion generating means 1 by using a control value corresponding to the level of the detected input signal, distortion component level detecting means (7) detects the level of distortion component contained in the amplified signal issued from the amplifier (2), integrating means K1 to KN integrate the level of the distortion component detected at every level of the detected input signal, and control value updating means (10) updates the control value corresponding to the level so that the integration result at every level of the input signal may be small.

    摘要翻译： 在预失真型失真补偿装置中，通过使用与输入信号的电平相对应的控制值进行控制来补偿放大器放大输入信号的失真的预失真型失真补偿装置，将控制值更新为更高的精度值。 失真产生装置（1）在输入信号中产生失真，输入信号电平检测装置（3）检测输入信号的电平，失真控制装置（4）通过使用控制值来控制失真发生装置1产生的失真 对应于检测到的输入信号的电平，失真分量电平检测装置（7）检测从放大器（2）发出的放大信号中包含的失真分量的电平，积分装置K 1至K N将失真分量 在检测到的输入信号的各个级别检测到，并且控制值更新装置（10）更新与电平相对应的控制值，使得输入信号的每个级别的积分结果可能较小。

    Method in a receiver and a receiver
    38.
    发明授权
    Method in a receiver and a receiver 有权
    接收机和接收机中的方法

    公开(公告)号：US06909738B2

    公开(公告)日：2005-06-21

    申请号：US09826260

    申请日：2001-04-04

    申请人： David Akopian ,  Ilkka Kontola ,  Harri Valio ,  Seppo Turunen

    发明人： David Akopian ,  Ilkka Kontola ,  Harri Valio ,  Seppo Turunen

    IPC分类号： H04B1/707 ,  H04L27/00 ,  H04L27/227 ,  H04L27/30

    CPC分类号： G01S19/29 ,  H04B1/7075 ,  H04B2201/70715 ,  H04L27/2272 ,  H04L2027/0057 ,  H04L2027/0065

    摘要： The invention relates to a method for acquiring a receiver (1) into a code modulated spread spectrum signal received by the receiver (1). In the method at least one replica code (r) is used which corresponds to a code used with the modulation having a pre-determined number of chips, and an examination phase is performed, in which a frequency shift of the signal within a selected frequency area is examined, and a code phase of the code used with the modulation is examined. In the method the frequency shift examination is divided into a first estimation phase and a second estimation phase, wherein in the first estimation phase the selected frequency area is divided into a first set of frequencies, and in the second estimation phase a second set of frequencies is examined nearby each frequency of the first set of frequencies. Further, a comparison for frequencies of the second set of frequencies is performed using the received signal and the replica code (r), and the results of the comparison are used to estimate the correct frequency shift.

    摘要翻译： 本发明涉及一种用于将接收机（1）采集到由接收机（1）接收的码调制扩频信号中的方法。 在该方法中，使用至少一个复制码（r），其对应于具有预定数量的码片的调制使用的码，并且执行检查相位，其中在所选频率内的信号的频移 检查区域，并且检查与调制一起使用的代码的代码相位。 在该方法中，频移检查被分为第一估计阶段和第二估计阶段，其中在第一估计阶段中，将所选择的频率区域划分为第一组频率，在第二估计阶段中，将第二组频率 在第一组频率的每个频率附近检查。 此外，使用接收信号和复制码（r）进行第二组频率的频率比较，并且比较结果用于估计正确的频移。