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    HYBRID MATRIX AMPLIFIER WITH NOISE REDUCTION
    1.
    发明申请
    HYBRID MATRIX AMPLIFIER WITH NOISE REDUCTION 审中-公开
    混合矩阵放大器与噪声减少

    公开(公告)号：WO1997045950A1

    公开(公告)日：1997-12-04

    申请号：PCT/US1997004823

    申请日：1997-03-24

    Applicant: MOTOROLA INC.

    Inventor： MOTOROLA INC. ,  LUZ, Yuda, Yehuda

    IPC: H03F01/32

    CPC classification number: H03F1/3252 ,  H03F3/60

    Abstract: An input signal (102) and a dithering signal (106) are coupled to an input of an n by m transform matrix (98). The input signal (102) and the dithering signal (106) are transformed to produce m transformed signals, which are then amplified using a plurality of amplifiers (64). The amplified signals are then input into an m by n inverse transform matrix (100) that performs an inverse transform to produce a low noise output signal. The low noise output signal may be passed through a band pass filter (74) to remove out-of-band noise derived from the dithering signal and provide a filtered output signal (110). The transform matrix (98) and inverse transform matrix (100) may be implemented with Fourier transform matrices or a Butler transform matrices.

    Abstract translation: 输入信号（102）和抖动信号（106）耦合到n×m变换矩阵（98）的输入。 输入信号（102）和抖动信号（106）被变换以产生m个变换信号，然后使用多个放大器（64）进行放大。 放大的信号然后被输入到执行逆变换的m乘n逆变换矩阵（100），以产生低噪声输出信号。 低噪声输出信号可以通过带通滤波器（74）以去除从抖动信号导出的带外噪声并提供经滤波的输出信号（110）。 变换矩阵（98）和逆变换矩阵（100）可以用傅里叶变换矩阵或巴特勒变换矩阵来实现。

    METHOD AND APPARATUS FOR SOFT HANDOFF COMMUNICATIONS IN A COMMUNICATION SYSTEM OPERATING ACCORDING TO MULTIPLE COMMUNICATION STANDARDS
    2.
    发明公开
    METHOD AND APPARATUS FOR SOFT HANDOFF COMMUNICATIONS IN A COMMUNICATION SYSTEM OPERATING ACCORDING TO MULTIPLE COMMUNICATION STANDARDS 有权
    方法和设备软切换中的通信系统，这下多种通信标准运作

    公开(公告)号：EP1238465A2

    公开(公告)日：2002-09-11

    申请号：EP01926480.3

    申请日：2001-03-30

    Applicant: MOTOROLA, INC.

    Inventor： JALLOUL, Louay ,  TENBROOK, Keith, A., ,  CHEN, Jiangnan ,  ROTSTEIN, Ron ,  LUZ, Yuda, Yehuda

    IPC: H04B1/00

    CPC classification number: H04W36/18 ,  H04W36/0055 ,  H04W36/14 ,  H04W36/30

    Abstract: A soft handoff operation is provided for a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (MS) (204) receives the first signal, detects a pilot signal, measures pilot signal strength, and transmits a pilot strength measurement message. When the MS fails to receive a handoff direction message after transmitting the pilot strength message, the MS searches for a detecting presence of a broadcast control channel (BCCH) associated with a type IS-95C cell site (202) and measures a carrier-to-interference ratio of the BCCH. The MS compares the carrier-to-interference ratio to a threshold, and when the ratio is above the threshold, initiates a second communication according to the IS-95C standard, thus initiating a soft handoff operation and allowing cell sites (202, 203) to transmit information according to the IS-95C and IS-95B standards, respectively.

    HYBRID MATRIX AMPLIFIER
    3.
    发明申请
    HYBRID MATRIX AMPLIFIER 审中-公开
    混合矩阵放大器

    公开(公告)号：WO1998016998A1

    公开(公告)日：1998-04-23

    申请号：PCT/US1997015600

    申请日：1997-09-05

    Applicant: MOTOROLA INC.

    Inventor： MOTOROLA INC. ,  SCHIEMENZ, Arthur, Fred, Jr. ,  LUZ, Yuda, Yehuda ,  ANDERSON, Dale, Robert ,  JALLOUL, Louay, Adel

    IPC: H03F03/68

    CPC classification number: H03F3/602

    Abstract: In a hybrid matrix amplifier array (100), a configurable digital transform matrix (116) is initialized with a matrix of transform coefficients. A plurality of digital input signals (M1-M4) are received at inputs of the configurable digital transform matrix (116). The plurality of digital input signals are transformed to produce a plurality of transform digital signals (A1-A4) using the matrix of transform coefficients. The plurality of transform digital signals are converted to a plurality of transformed analoged signals (206) to produce a plurality of transformed analog signals. The transformed analog signals are amplified (104, 208) to produce amplified transformed signals. Finally, the amplified transformed signals are inverse transformed (102, 210) to produce output signals that correspond to a respective digital input signal (M1-M4). Upon sensing a failure in an amplifier array (104, 126) a controller (128) recalls matrix transform coefficients from a memory (130) and write and reconfigures the digital transform matrix (116) to minimize the effects of the amplifier failure at the hybrid matrix amplifier outputs (132).

    Abstract translation: 在混合矩阵放大器阵列（100）中，使用变换系数矩阵来初始化可配置数字变换矩阵（116）。 在可配置数字变换矩阵（116）的输入处接收多个数字输入信号（M1-M4）。 多个数字输入信号被变换以使用变换系数的矩阵产生多个变换数字信号（A1-A4）。 多个变换数字信号被转换成多个变换的模拟信号（206）以产生多个变换的模拟信号。 经变换的模拟信号被放大（104,208）以产生放大的变换信号。 最后，放大的变换信号被逆变换（102,210）以产生对应于相应的数字输入信号（M1-M4）的输出信号。 一旦感测到放大器阵列（104,126）中的故障，控制器（128）从存储器（130）回调矩阵变换系数，并写入并重新配置数字变换矩阵（116）以最小化混合放大器故障的影响 矩阵放大器输出（132）。

    MULTIPLE ACCESS UP CONVERTER/MODULATOR AND METHOD
    4.
    发明申请
    MULTIPLE ACCESS UP CONVERTER/MODULATOR AND METHOD 审中-公开
    多路访问转换器/调制器及方法

    公开(公告)号：WO1996031942A1

    公开(公告)日：1996-10-10

    申请号：PCT/US1996002746

    申请日：1996-02-29

    Applicant: MOTOROLA INC.

    Inventor： MOTOROLA INC. ,  ROTTINGHAUS, Alan, Patrick ,  LUREY, Daniel, Morris ,  LUZ, Yuda, Yehuda

    IPC: H03C03/00

    CPC classification number: H04B1/0007 ,  H04B1/26 ,  H04B7/0802 ,  H04L1/06 ,  H04L1/22

    Abstract: A multiple access digital up converter/modulator includes selectors (1606, 1608) having inputs (1602, 1604) and outputs coupled to first and second interpolating filters (1610, 1626). The output of the first interpolating filter is selectively coupled to a first mixer (1612) and a first adder (1622), the first adder also receiving a first phase value, and the output is coupled to a first phase accumulator (1616) the output of which is coupled to a first sinusoid generator (1614) and selectively coupled to a second sinusoid generator (1630). The outputs of each of the first and second mixers are selectively coupled to an output adder (1634) and to inputs of the first and second mixers. The output of the second interpolating filter (1626) is selectively coupled to a second mixer (1628) and a second adder (1638), which also receives a second phase value and the output of which is coupled to a second phase accumulator (1640) the output of which is selectively coupled to the second sinusoid generator.

    Abstract translation: 多址数字上变换器/调制器包括具有输入（1602,1604）的选择器（1606,1608）和耦合到第一和第二内插滤波器（1610,1626）的输出。 第一内插滤波器的输出选择性地耦合到第一混频器（1612）和第一加法器（1622），第一加法器还接收第一相位值，并且输出耦合到第一相位累加器（1616），输出 其耦合到第一正弦波发生器（1614）并选择性地耦合到第二正弦波发生器（1630）。 第一和第二混频器中的每一个的输出选择性地耦合到输出加法器（1634）和第一和第二混频器的输入。 第二内插滤波器（1626）的输出选择性地耦合到第二混频器（1628）和第二加法器（1638），第二加法器（1638）还接收第二相位值，其输出耦合到第二相位累加器（1640） 其输出选择性地耦合到第二正弦波发生器。

    HYBRID MATRIX AMPLIFIER WITH NOISE REDUCTION
    6.
    发明公开
    HYBRID MATRIX AMPLIFIER WITH NOISE REDUCTION 失效
    降噪混合矩阵放大器

    公开(公告)号：EP0903009A1

    公开(公告)日：1999-03-24

    申请号：EP97916981.0

    申请日：1997-03-24

    Applicant: MOTOROLA, INC.

    Inventor： LUZ, Yuda, Yehuda

    IPC: H03F3 ,  H03F1

    CPC classification number: H03F1/3252 ,  H03F3/60

    Abstract: An input signal (102) and a dithering signal (106) are coupled to an input of an n by m transform matrix (98). The input signal (102) and the dithering signal (106) are transformed to produce m transformed signals, which are then amplified using a plurality of amplifiers (64). The amplified signals are then input into an m by n inverse transform matrix (100) that performs an inverse transform to produce a low noise output signal. The low noise output signal may be passed through a band pass filter (74) to remove out-of-band noise derived from the dithering signal and provide a filtered output signal (110). The transform matrix (98) and inverse transform matrix (100) may be implemented with Fourier transform matrices or a Butler transform matrices.

    METHOD AND APPARATUS FOR SOFT HANDOFF COMMUNICATIONS IN A COMMUNICATION SYSTEM OPERATING ACCORDING TO MULTIPLE COMMUNICATION STANDARDS
    8.
    发明授权
    METHOD AND APPARATUS FOR SOFT HANDOFF COMMUNICATIONS IN A COMMUNICATION SYSTEM OPERATING ACCORDING TO MULTIPLE COMMUNICATION STANDARDS 有权
    方法和设备软切换中的通信系统，这下多种通信标准运作

    公开(公告)号：EP1238465B1

    公开(公告)日：2005-09-07

    申请号：EP01926480.3

    申请日：2001-03-30

    Applicant: MOTOROLA, INC.

    Inventor： JALLOUL, Louay ,  TENBROOK, Keith, A., ,  CHEN, Jiangnan ,  ROTSTEIN, Ron ,  LUZ, Yuda, Yehuda

    IPC: H04Q7/38

    CPC classification number: H04W36/18 ,  H04W36/0055 ,  H04W36/14 ,  H04W36/30

    Abstract: A soft handoff operation is provided for a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (MS) (204) receives the first signal, detects a pilot signal, measures pilot signal strength, and transmits a pilot strength measurement message. When the MS fails to receive a handoff direction message after transmitting the pilot strength message, the MS searches for a detecting presence of a broadcast control channel (BCCH) associated with a type IS-95C cell site (202) and measures a carrier-to-interference ratio of the BCCH. The MS compares the carrier-to-interference ratio to a threshold, and when the ratio is above the threshold, initiates a second communication according to the IS-95C standard, thus initiating a soft handoff operation and allowing cell sites (202, 203) to transmit information according to the IS-95C and IS-95B standards, respectively.

    METHOD AND APPARATUS FOR SPREADING AND DESPREADING DATA IN A SPREAD-SPECTRUM COMMUNICATION SYSTEM
    10.
    发明公开
    METHOD AND APPARATUS FOR SPREADING AND DESPREADING DATA IN A SPREAD-SPECTRUM COMMUNICATION SYSTEM 审中-公开
    FOR DATENSPREIZEN的方法和设备，并取消在扩展通信系统

    公开(公告)号：EP1133843A1

    公开(公告)日：2001-09-19

    申请号：EP99960281.6

    申请日：1999-11-10

    Applicant: MOTOROLA, INC.

    Inventor： ROTSTEIN, Ron ,  LUZ, Yuda, Yehuda ,  CORKE, Robert, John

    IPC: H04B15/00

    CPC classification number: H04J13/0048 ,  H04B1/707 ,  H04L5/026 ,  H04L27/2626

    Abstract: A current mode of operation is provided to a Walsh spreader (203), and based on the current mode of operation, the Walsh spreader (203) either varies a Walsh code at a symbol rate, or holds the Walsh code constant. During multi-carrier transmission a first symbol within a data stream (210) is spread with a first Walsh code, while symbols immediately preceding and following the first symbol are spread by another, differing Walsh code. The sequence of Walsh codes exiting the spreader (201) is further scrambled by a pair of Pseudo-Noise (PN) codes (224) that are held constant for three Walsh code periods during multi-carrier transmission, and are not held constant during direct-spread transmission.

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