System for direct sequence spreading
    2.
    发明专利
    System for direct sequence spreading 审中-公开
    直接序列扩展系统

    公开(公告)号:JP2011045096A

    公开(公告)日:2011-03-03

    申请号:JP2010204841

    申请日:2010-09-13

    CPC classification number: H04B1/7093 H04B1/707

    Abstract: PROBLEM TO BE SOLVED: To provide a system having solved a problem, wherein since respective spread signals output by a spreading system is based on two or more data signals, when using such a spreading system, several separation processes of the data signals must be performed before spreading, but the complexity of the spreading system is increased, when a separation processing operation increases the complexity of the data signal, and a desired operation cannot be attained.
    SOLUTION: A spreading system spreads two data signals. The system produces a filtered signal, based on one of the data signals and an output signal that is based on both of the data signals. In one example, a spreading system is used to perform QPSK spreading of two data signals, the QPSK spreading actually including separation processing of the two data signals. Such a separation control can include a filtering and/or a gain control.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:为了提供一种解决问题的系统,其中由于由扩展系统输出的各个扩展信号基于两个或更多个数据信号,当使用这种扩展系统时,数据信号的几个分离处理 必须在扩展之前执行,但是当分离处理操作增加数据信号的复杂性时,扩展系统的复杂性增加,并且不能获得期望的操作。 解决方案:扩展系统扩展两个数据信号。 该系统基于数据信号中的一个和基于两个数据信号的输出信号产生滤波信号。 在一个示例中,扩频系统用于执行两个数据信号的QPSK扩展,实际上QPSK扩展包括两个数据信号的分离处理。 这种分离控制可以包括滤波和/或增益控制。 版权所有(C)2011,JPO&INPIT

    System for direct sequence spreading
    3.
    发明专利
    System for direct sequence spreading 审中-公开
    直接序列扩展系统

    公开(公告)号:JP2007306582A

    公开(公告)日:2007-11-22

    申请号:JP2007140429

    申请日:2007-05-28

    CPC classification number: H04B1/7093 H04B1/707

    Abstract: PROBLEM TO BE SOLVED: To solve the problem that since each spread signal output by a spreading system may be based on more than one data signal, any separate processing of the data signals must be performed before spreading when existing spreading systems are used, but in a case where the separate processing operation increases the complexity of the data signal, the resulting increase in the complexity of the spreading system that may be required may render the desired implementation impracticable.
    SOLUTION: Two data signals are spread. The system produces a filtered signal that is based on one of the data signals and an output signal that is based on both of the data signals. In one example, a spreading system is used to perform QPSK spreading of two data signals, including separate processing of the two data signals, in a practical manner. Such separate control may include filtering and/or gain control.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 解决的问题为了解决由于扩展系统输出的每个扩展信号可以基于多于一个数据信号的问题,在使用现有的扩展系统时必须在扩展之前执行数据信号的任何单独的处理 但是在单独的处理操作增加数据信号的复杂性的情况下,可能需要的扩展系统的复杂性的增加可使得期望的实现变得不可行。 解决方案:两个数据信号传播。 系统产生基于数据信号之一的滤波信号和基于两个数据信号的输出信号。 在一个示例中,扩展系统用于以实用的方式执行两个数据信号的QPSK扩展,包括两个数据信号的单独处理。 这种单独的控制可以包括滤波和/或增益控制。 版权所有(C)2008,JPO&INPIT

    Method and apparatus for rotating phase of complex psk signal
    4.
    发明专利
    Method and apparatus for rotating phase of complex psk signal 有权
    旋转复合PSK信号相位的方法和装置

    公开(公告)号:JP2012060663A

    公开(公告)日:2012-03-22

    申请号:JP2011248789

    申请日:2011-11-14

    CPC classification number: H04L27/206 H04L27/2082

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for rotating the phase of a complex PSK signal.SOLUTION: In applications employing phase-shift keying modulation, phase rotators (200, 202) as disclosed herein are used to rotate the constellation of signal vectors before carrier modulation in order to maximize modulator output power. The rotators (200, 202) may be applied in the digital domain (to complex signals having either binary-valued or multi-valued components) or in the analog domain.

    Abstract translation: 要解决的问题:提供用于旋转复合PSK信号的相位的方法和装置。 解决方案:在采用相移键控调制的应用中,如本文所公开的相位旋转器(200,202)用于在载波调制之前旋转信号矢量的星座图,以便最大化调制器输出功率。 旋转器(200,202)可以应用于数字域(具有二进制值或多值分量的复数信号)或模拟域中。 版权所有(C)2012,JPO&INPIT

    6.
    发明专利
    未知

    公开(公告)号:AT421192T

    公开(公告)日:2009-01-15

    申请号:AT01992057

    申请日:2001-11-03

    Applicant: QUALCOMM INC

    Abstract: A system for digital filtering includes a set of logic gates, a state storage, and a multiplexer. The state storage includes two or more storage banks and may also include combinatorial logic and/or at least one lookup table. In one application, a filtering operation according to a finite-impulse-response filter coefficient vector is performed without runtime multiplications. Applications to symmetric and antisymmetric filter coefficient vectors are described, as well as applications to filter coefficient vectors of arbitrary odd or even length.

    Digital filter with state storage
    10.
    发明专利

    公开(公告)号:AU3253102A

    公开(公告)日:2002-05-27

    申请号:AU3253102

    申请日:2001-11-03

    Applicant: QUALCOMM INC

    Abstract: A system for digital filtering includes a set of logic gates, a state storage, and a multiplexer. The state storage includes two or more storage banks and may also include combinatorial logic and/or at least one lookup table. In one application, a filtering operation according to a finite-impulse-response filter coefficient vector is performed without runtime multiplications. Applications to symmetric and antisymmetric filter coefficient vectors are described, as well as applications to filter coefficient vectors of arbitrary odd or even length.

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