Direct-conversion receiver for a communication system using a modulation with non-constant envelope

    公开(公告)号:US07095997B2

    公开(公告)日:2006-08-22

    申请号:US10281052

    申请日:2002-10-25

    Applicant: Patrick Conti

    Inventor: Patrick Conti

    CPC classification number: H04B1/30 H04L25/062 H04L27/22

    Abstract: A direct-conversion receiver includes an analog stage for receiving an incident signal from a transmission channel, mixers and programmable-gain amplifiers. The receiver further includes at least one compensation module having input and output terminals respectively connected between the output of the mixers and the input of the programmable-gain amplifiers. The compensation module compensates for both a static DC voltage offset and a possible dynamic DC voltage offset of the analog stage.

    Patching device for a processor
    63.
    发明申请
    Patching device for a processor 有权
    用于处理器的修补设备

    公开(公告)号:US20060107104A1

    公开(公告)日:2006-05-18

    申请号:US11267927

    申请日:2005-11-04

    CPC classification number: G06F9/30149 G06F9/322 G06F9/328 G06F12/0638

    Abstract: A code patching device is provided for use with a processor having a read-only memory which stores instruction code and a further memory for storing patch code. A plurality of patch address registers each store an address, in the read-only memory, at which a patch is to be performed. A comparator compares the address of the read-only memory that is being accessed by the processor with the addresses stored in the registers. A control unit selects between code from the read-only memory or patch code from the further memory depending on the comparison. The code patching device can replace, on-the-fly, erroneous lines of code from the read-only memory by corrected ones. During an initialization process the patch code is loaded into the further memory and the registers are loaded with the addresses which require patching.

    Abstract translation: 提供代码修补装置用于具有存储指令代码的只读存储器和用于存储补丁码的另外的存储器的处理器。 多个补丁地址寄存器分别存储要在其中执行补丁的只读存储器中的地址。 比较器将处理器正在访问的只读存储器的地址与存储在寄存器中的地址进行比较。 控制单元根据比较选择来自只读存储器的代码或来自另外存储器的补丁码。 代码修补设备可以通过已修正的代码来替代来自只读存储器的错误的代码行。 在初始化过程中,补丁代码被加载到另外的存储器中,寄存器加载了需要修补的地址。

    Image sensor device comprising central locking
    65.
    发明授权
    Image sensor device comprising central locking 有权
    图像传感器装置包括中央锁定

    公开(公告)号:US07038183B2

    公开(公告)日:2006-05-02

    申请号:US10451461

    申请日:2001-12-18

    Inventor: Stephan Benthien

    CPC classification number: H04N5/353 H04N5/374

    Abstract: The invention relates to an image sensor device comprising a substrate, formed in CMOS technology, in particular, with an integrated semiconductor structure (ASIC) and, arranged above that, an optically active thin-film structure comprising in each case at least one layer made of doped and undoped amorphous silicon, spatially adjacent pixels in each case being formed in the horizontal plane, which pixels each have an optoelectronic transducer for converting incident light into an electric current proportional to the incident quantity of light, and also a charge store assigned to the optoelectronic transducer, the charge state of which charge store can be varied in a manner dependent on the light incident on the assigned optoelectronic transducer. Taking this as a departure point, the invention is based on the object of further developing an image sensor device of the stated type to the effect of avoiding image distortions in the case of moving objects, which is achieved according to the invention by virtue of the fact that the charge store is a capacitor (Cint), in which the photocurrent output by the optoelectronic transducer can be integrated during a predetermined measurement duration, and that a switching means (Tstop) that can be driven by a common control device is provided in each pixel, which switching means can be driven jointly for all the pixels of the image sensor device.

    Abstract translation: 本发明涉及一种图像传感器装置,其包括以CMOS技术形成的衬底,特别是具有集成半导体结构(ASIC)的衬底,并且布置在其上,光学活性薄膜结构包括在每种情况下至少一层制成 的掺杂和未掺杂的非晶硅,每种情况下的空间相邻像素形成在水平平面中,每个像素都具有用于将入射光转换为与入射光量成比例的电流的光电转换器,以及分配给 光电子传感器,其电荷存储的充电状态可以以取决于所分配的光电转换器上入射的光的方式变化。 以此作为出发点,本发明基于进一步开发所述类型的图像传感器装置的目的,以便在移动物体的情况下避免图像失真的效果,根据本发明,根据本发明实现 事实上,电荷存储器是电容器(C int int int),其中光电转换器的光电流输出可以在预定测量持续时间内被积分,并且切换装置(T < / SUB>)可以由公共控制装置驱动,每个像素中可以为图像传感器装置的所有像素共同驱动该切换装置。

    Method and device for automatic control of the frequency of a local oscillator in a DS-CDMA type receiver
    66.
    发明授权
    Method and device for automatic control of the frequency of a local oscillator in a DS-CDMA type receiver 有权
    用于自动控制DS-CDMA型接收机本地振荡器频率的方法和装置

    公开(公告)号:US07035605B2

    公开(公告)日:2006-04-25

    申请号:US10621030

    申请日:2003-07-16

    CPC classification number: H03J7/02 H04J13/0044

    Abstract: A method for controlling frequency of a local oscillator in a DS-CDMA type receiver includes transforming a known spread spectrum signal into a sampled digital signal formed of symbols with a despreaded frequency spectrum, and determining a residual frequency error fe for each symbol including a first residual frequency error fe1. The method further includes correcting the frequency of the local oscillator with the residual frequency errors, and determining an average of absolute values of a predetermined number of successive residual frequency errors. The average is compared with a threshold, and if the average is greater than or equal to the threshold, the local oscillator frequency is corrected using an error equal to −sgn(fe1) (1/T−|fe1|), where sgn is the sign function, | | is the absolute value function and T is duration of a symbol before determining the next residual frequency error associated with the next symbol.

    Abstract translation: 一种用于控制DS-CDMA型接收机中的本地振荡器的频率的方法,包括将已知的扩频信号变换为由具有解扩频谱的符号形成的采样数字信号,以及确定残差频率误差f SUB>用于每个符号,包括第一残余频率误差f e1 。 该方法还包括用残余频率误差校正本地振荡器的频率,以及确定预定数量的连续残差频率误差的绝对值的平均值。 将平均值与阈值进行比较,如果平均值大于或等于阈值,则使用等于-sgn(f / e1×)的误差来校正本地振荡器频率(1 / T- | f | e1 | |,其中sgn是符号函数,| | 是绝对值函数,T是在确定与下一符号相关联的下一个残余频率误差之前的符号的持续时间。

    Method and system for blindly detecting a discontinuously transmitted shared channel, in particular blind high speed shared control channels detection
    68.
    发明申请
    Method and system for blindly detecting a discontinuously transmitted shared channel, in particular blind high speed shared control channels detection 有权
    用于盲目检测不连续发送的共享信道的方法和系统,特别是盲高速共享控制信道检测

    公开(公告)号:US20050286654A1

    公开(公告)日:2005-12-29

    申请号:US11144366

    申请日:2005-06-03

    CPC classification number: H04L1/0059 H04L1/0055 H04L1/0072

    Abstract: A method for detecting an eventual channel intended to a designated user equipment among n channels received by the designated user equipment during a given duration, each channel received during the duration carrying encoded data masked with an identifier associated to a user equipment. The method includes a selecting phase having a demasking step demasking the received masked encoded data of each channel with the identifier of the designated user equipment, a decoding step decoding the demasked encoded data of each channel to obtain a set of digital decoded data for each channel, a calculating step calculating, from each set of digital decoded data, a global information representative of a confidence in digital data received on the physical channel, and a detecting step detecting the channel from all the global information.

    Abstract translation: 一种用于在给定持续时间期间检测由指定用户设备接收的n个信道中的指定用户设备的最终通道的最终通道的方法,每个信道在携带用与用户设备相关联的标识符掩蔽的编码数据的持续时间期间接收。 该方法包括一个选择阶段,具有一个解映射步骤,用接收到的每个通道的被屏蔽的编码数据用指定的用户设备的标识符进行解掩盖;解码步骤,解码每个通道的被解密的编码数据,以获得每个通道的一组数字解码数据 计算步骤,从每组数字解码数据计算表示在所述物理信道上接收的数字数据的置信度的全局信息,以及检测步骤,从所有全局信息中检测所述信道。

    Device for estimating a sequence of N bits corresponding to a received sequence of M digital data and associated method
    69.
    发明申请
    Device for estimating a sequence of N bits corresponding to a received sequence of M digital data and associated method 有权
    用于估计对应于所接收的M个数字数据序列的N位序列和相关方法的装置

    公开(公告)号:US20050180531A1

    公开(公告)日:2005-08-18

    申请号:US11057600

    申请日:2005-02-14

    CPC classification number: H03M13/451 H03M13/13 H03M13/23 H03M13/3944

    Abstract: A system and method is provided for estimating a sequence of N bits ({circumflex over (x)}0{circumflex over (x)}1 . . . {circumflex over (x)}N−1) corresponding to a received sequence of M digital data (r0r1 . . . rM−1). The method includes determining candidate sequences of MRS digital data from a reduced reference sequence space comprising 2NRS reduced reference sequences of MRS reference digital data (s0s1 . . . sMRS−1), MRS being less than M, and 2NRS being less than or equal to 2N. The method further includes making up each candidate sequence with remaining reference symbols to obtain at least one complete candidate sequence of M digital data, and determining the sequence of N bits ({circumflex over (x)}0{circumflex over (x)}1 . . . {circumflex over (x)}N−1) from the complete candidate sequences.

    Abstract translation: 提供了一种系统和方法,用于估计与a相对应的N位(x×1×1×1×N-1)的序列 接收到的M个数字数据序列(r 1,...,...,M-1)。 该方法包括从缩减的参考序列空间中确定M SUB数字数据的候选序列,所述缩减的参考序列空间包括2 N 2 参考序列的M RS>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< SUB2> RS -1,M RS小于M,2 N < SUB2> RS 小于或等于2 N。 该方法还包括用剩余的参考符号组成每个候选序列,以获得M个数字数据的至少一个完整的候选序列,并且确定N个比特的序列(x

    Method of selecting echoes of a signal for assignment to fingers of a Rake receiver and corresponding Rake receiver
    70.
    发明申请
    Method of selecting echoes of a signal for assignment to fingers of a Rake receiver and corresponding Rake receiver 有权
    选择用于分配给Rake接收机和相应的Rake接收机的手指的信号的回波的方法

    公开(公告)号:US20050180494A1

    公开(公告)日:2005-08-18

    申请号:US11031458

    申请日:2005-01-05

    Inventor: Corinne Bonhomme

    CPC classification number: H04B1/7113 H04B1/7117 H04B1/712

    Abstract: A method is provided for processing a signal emanating from a multi-path transmission medium. A number L of echoes of the signal received are detected, with L being greater than the number N of fingers of a “Rake” receiver, and there are selected N echoes from among the L echoes that are detected. At least some of the L echoes that are detected are echoes temporally correlated according to a determined correlation criterion. The selection step includes determining, as a function of the initial complex amplitudes associated with at least the temporally correlated echoes, weighted individual energies corresponding respectively to temporally decorrelated virtual echoes, and selecting from among the L echoes of N echoes as a function of a determined power criterion using at least the weighted individual energies.

    Abstract translation: 提供一种用于处理从多路传输介质发出的信号的方法。 检测到接收到的信号的L个回波,其中L大于“耙”接收机的手指数N,并且从被检测的L个回波中选出N个回波。 检测到的L个回波中的至少一些是根据所确定的相关标准在时间上相关的回波。 所述选择步骤包括根据与至少时间相关的回波相关联的初始复幅度来确定分别对应于时间去相关的虚拟回波的加权的个体能量,以及从N个回波的L个回波中选择作为确定的函数的函数 功率标准至少使用加权的个体能量。

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