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    Method and apparatus for spur cancellation
    3.
    发明公开
    Method and apparatus for spur cancellation 审中-公开
    Verfahren und Vorrichtung zurUnterdrückungparasitärerFrequenzen

    公开(公告)号：EP2202899A1

    公开(公告)日：2010-06-30

    申请号：EP08291230.4

    申请日：2008-12-23

    Applicant: Motorola, Inc.

    Inventor： Chance, Gregory W. ,  Peyrusse, Olivier ,  Zirphile, Lionel J.

    IPC: H04B15/02

    CPC classification number: H04B15/02 ,  H04B2215/064

    Abstract: A method (500) and apparatus (400) of clock harmonic spur removal entails calculating (502) an exact frequency of a clock harmonic spur from Automatic Frequency Control (AFC) values, measuring (504) a spur magnitude and a spur phase of the clock harmonic spur, and canceling (506) a clock harmonic causing the clock harmonic spur and a processor (402) that is operable to perform these functions.

    Abstract translation: 时钟谐波杂散去除的方法（500）和装置（400）需要计算（502）来自自动频率控制（AFC）值的时钟谐波杂散的精确频率，测量（504）尖峰幅度和 时钟谐波杂散，并且消除（506）引起时钟谐波杂散的时钟谐波和可操作以执行这些功能的处理器（402）。

    A RADIO TELECOMMUNICATION TERMINAL AND A METHOD OF DECREASING PERTURBATIONS WITHIN THIS TERMINAL
    5.
    发明公开
    A RADIO TELECOMMUNICATION TERMINAL AND A METHOD OF DECREASING PERTURBATIONS WITHIN THIS TERMINAL 有权
    无线通信终端和方法，该终端的干扰减少

    公开(公告)号：EP1980026A1

    公开(公告)日：2008-10-15

    申请号：EP07700662.5

    申请日：2007-01-22

    Applicant: NXP B.V.

    Inventor： PERRIN, Jean-Philippe ,  BINI, Jean-Claude

    IPC: H04B1/10 ,  H04B15/02 ,  H04B15/04

    CPC classification number: H04B15/02 ,  H04B2215/064

    Abstract: The radio telecommunication terminal (2) comprises a data burst scheduler able to schedule the continuous transmission of consecutive data bursts which generate noise of similar energy on the radio-frequency channel as long as a specific radio-frequency channel is used to receive a radio signal, the respective energy of the noise generated by the transmission of two consecutive first and second data burst being similar only if the noise energy gradient between the end of the transmission of the first data burst and the beginning of the transmission of the second data burst is situated between predetermined upper and lower limits.

    NON-LINEAR FEEDBACK CONTROL LOOPS AS SPREAD SPECTRUM CLOCK GENERATOR
    6.
    发明公开
    NON-LINEAR FEEDBACK CONTROL LOOPS AS SPREAD SPECTRUM CLOCK GENERATOR 审中-公开
    非线性控制研磨扩频时钟发生器

    公开(公告)号：EP1958336A2

    公开(公告)日：2008-08-20

    申请号：EP06846240.7

    申请日：2006-11-07

    Applicant: Omnispread Communication, Inc.

    Inventor： LIN, Wen, T.

    IPC: H04B1/00

    CPC classification number: H04B15/02 ,  H04B2215/064 ,  H04B2215/067

    Abstract: This patent disclosure presents circuits, systems and methods to spread a clock signal to produce a random spreading for the clock signal that offers the maximum possible power density reduction for the spurious radiations generated from the clock signal and its harmonics. These new inventions utilize a non-linear feedback control loop to assist in generation of the spread spectrum clock and result in electronic products that can pass the FCC requirements for spurious radiations generated by the clock signal and its harmonics without utilizing expensive shielding and other EMI suppression methods.

    Spur harmonic canceller for RF band clock
    8.
    发明公开
    Spur harmonic canceller for RF band clock 有权
    欧洲无线电射频发射机的UnterdrückereinerunerwünschtenHarmoniewelle

    公开(公告)号：EP1648093A1

    公开(公告)日：2006-04-19

    申请号：EP05021145.7

    申请日：2005-09-28

    Applicant: Broadcom Corporation

    Inventor： Gaikwad, Rohit V. ,  Trachewsky, Jason A.

    IPC: H04B1/12

    CPC classification number: H04B15/06 ,  H04B15/02 ,  H04B2215/064

    Abstract: A network device for cancelling spurs without affecting an incoming signal. The network device includes an estimator for estimating amplitude and phase of a spur over a predetermined period of time. The network device also includes processing means for freezing further estimation of the amplitude and phase of the spur, for cancelling for an estimated spur and for allowing incoming packets. The network device further includes subtracting means for subtracting the estimated spur from an incoming packet. The estimated spur is subtracted from the incoming packet without affecting incoming signals that are not part of the estimated spur.

    Abstract translation: 用于消除杂散而不影响输入信号的网络设备。 网络设备包括估计器，用于在预定时间段内估计支线的幅度和相位。 网络设备还包括处理装置，用于进一步冻结杂散的幅度和相位的进一步估计，以消除估计的杂散并允许输入分组。 网络设备还包括减法装置，用于从输入分组中减去估计的分支。 从输入的数据包中减去估计的分量，而不影响不属于估计的分量的输入信号。

    High speed interface for radio systems
    10.
    发明公开
    High speed interface for radio systems 有权
    HochgeschwindigkeitschnittstellefürFunkanlagen

    公开(公告)号：EP1394972A1

    公开(公告)日：2004-03-03

    申请号：EP02425547.3

    申请日：2002-09-02

    Applicant: STMicroelectronics S.r.l.

    Inventor： Boarin, Gianluigi ,  Adduci, Francesco ,  Oddicini, Mattia ,  Crudo, Salvatore Matteo

    IPC: H04B15/02 ,  H04B1/40 ,  H03K7/08

    CPC classification number: H03K7/08 ,  H04B1/40 ,  H04B15/02 ,  H04B2215/064 ,  H04B2215/067

    Abstract: The present invention relates to a high speed interface for radio systems, in particular to a synchronous serial digital interface for car radio.
    In an its embodiment the synchronous serial digital interface for at least dual radio receiver systems comprises a master device and a slave device; said dual radio receiver systems having an intermediate frequency; said master device and said slave device exchange data in bi-directional way on at least one communication channel; said master device and said slave device have a unique bit clock; said master device supply to said slave device a synchronisation signal; said synchronisation signal have frequency spectrum with an amplitude at said intermediate frequency lower than at the other frequencies.

    Abstract translation: 无线电系统的高速接口技术领域本发明涉及用于无线电系统的高速接口，特别涉及用于汽车无线电的同步串行数字接口。 在其实施例中，用于至少双无线电接收机系统的同步串行数字接口包括主设备和从设备; 所述双无线电接收机系统具有中频; 所述主设备和所述从设备在至少一个通信信道上以双向方式交换数据; 所述主设备和所述从设备具有唯一的位时钟; 所述主设备向所述从设备提供同步信号; 所述同步信号具有在所述中频处的振幅低于其它频率的频谱。

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