Apparatus and method to decrease signal amplitude peak-to-average ratio in a wireless communications system
    121.
    发明公开
    Apparatus and method to decrease signal amplitude peak-to-average ratio in a wireless communications system 审中-公开
    装置和方法用于减少在无线通信工程系统峰均功率的比率

    公开(公告)号:EP1748572A2

    公开(公告)日:2007-01-31

    申请号:EP06117869.5

    申请日:2006-07-26

    Applicant: M/A-COM, INC.

    Inventor: Sarraf, Mohsen

    CPC classification number: H04B1/707 H04B2201/70706

    Abstract: Apparatus and method to reduce signal amplitude peak-to-average ratio (PAR) in a wireless communications system are described. The apparatus may include a signal conditioning module (112) to receive a baseband signal. The signal conditioning module (112) may split the baseband signal along multiple paths (114,116), delay one or more of the paths, and combine the multiple paths (114,116) to form a conditioned signal (132) having lower signal amplitude PAR than the baseband signal.

    Abstract translation: 装置和方法,以减少信号幅度峰值与平均值之比(PAR)在无线通信系统进行说明。 该装置可以包括一个信号调节模块(112),以接收一个基带信号。 信号调节模块(112)可以分成沿着多个路径的基带信号(114,116),延迟路径中的一个或多个,并结合多条路径(114,116),以形成具有比下信号幅度PAR经调节的信号(132) 基带信号。

    Universal microphone for secure radio communication
    123.
    发明公开
    Universal microphone for secure radio communication 审中-公开
    为固定无线传输通用麦克风

    公开(公告)号:EP1587276A3

    公开(公告)日:2006-05-24

    申请号:EP05102928.8

    申请日:2005-04-13

    Applicant: M/A-COM, INC.

    CPC classification number: H04K1/00 G10L19/00 H04M1/05 H04M1/6041 H04W12/02

    Abstract: A microphone unit comprising a voice input for receiving (22) a voice input signal, an analog to digital converter for creating (26) a digital signal from voice signal, a voice coding device for creating (28) a voice coded signal output from the digital signal, encryption means for encrypting (30) the voice coded signal, and a modulator for generating (32) a transmittable signal that can be supplied (34) to a radio via the microphone input. Additionally, the microphone unit is capable of performing the steps in reverse upon receiving an encrypted signal. The received signal output from the radio is demodulated, un-encrypted, voice decoded, converted from a digital voice signal to an analog voice signal, and output via a speaker which is preferably built into the microphone unit.

    Wireless communication network comprising a master access point and local access points
    124.
    发明公开
    Wireless communication network comprising a master access point and local access points 有权
    德拉克洛斯公民社会主义社会发展中心Zugangspunkten和卢卡伦Zugangspunkten

    公开(公告)号:EP1657856A1

    公开(公告)日:2006-05-17

    申请号:EP05110616.9

    申请日:2005-11-10

    Applicant: M/A-COM, INC.

    CPC classification number: H04W16/12 H04W16/02 H04W16/14 H04W92/20

    Abstract: A wireless communication network (50) is provided that includes a plurality of access points. A plurality of the access points are configured as local access points (52) that are each configured to operate at one of a set of frequencies and within a communication range. The local access points (52) may communicate with a mobile device within the corresponding local access point communication range. The wireless network (50) further includes an access point configured as a master access point (62) to communicate with each of the plurality of local access points (52) at a frequency that is outside the set of frequencies of the local access points.

    Abstract translation: 提供了一种包括多个接入点的无线通信网络(50)。 多个接入点被配置为本地接入点(52),每个本地接入点被配置为以一组频率中的一个在通信范围内操作。 本地接入点(52)可以在对应的本地接入点通信范围内与移动设备进行通信。 无线网络(50)还包括被配置为主接入点(62)的接入点,以便以本地接入点的频率集合之外的频率与多个本地接入点(52)中的每一个进行通信。

    Serial control of radio frequency integrated circuits
    125.
    发明公开
    Serial control of radio frequency integrated circuits 有权
    RF电路的串行控制intergrierten

    公开(公告)号:EP1398918A3

    公开(公告)日:2006-04-26

    申请号:EP03255756.3

    申请日:2003-09-15

    Applicant: M/A-COM, INC.

    CPC classification number: H04L12/4135 H04W8/26 H04W28/18

    Abstract: A serial controller for use in controlling various radio frequency (RF) modules (218, 220, 222, 224) within an RF integrated circuit is coupled to an serial bus (102) that, internal to the RF integrated circuit transmits commands and data from a microcontroller to a data receiver module within the serial controller. The serial commands and data are transmitted across the serial bus (102) in a data packet format having an address-overhead portion and a data portion, wherein the data receiver module removes the address-overhead bits from the packet and provides the data portion of the packet as output data. A decoder/coder logic module coupled to the data receiver receives the serial data and is operative to process the serial data and in response thereto activate one or more control signals (210, 212, 214, 216). The RF module (218, 220, 222, 224) includes at least one circuit and one or more switching elements that are coupled to the one or more control signals (210, 212, 214, 216). The switching elements are responsive to the corresponding control signals (210, 212, 214, 216) by switching one or more switchable component into the circuit or isolating the switchable component from the circuit to adjust or change one or more parameter of the circuit so as to vary the output of the RF module in a controlled manner.

    DUAL BAND POWER AMPLIFIER WITH IMPROVED ISOLATION
    126.
    发明公开
    DUAL BAND POWER AMPLIFIER WITH IMPROVED ISOLATION 有权
    具有改进的隔离双带功率放大器

    公开(公告)号:EP1595330A2

    公开(公告)日:2005-11-16

    申请号:EP04709851.2

    申请日:2004-02-10

    Applicant: M/A-COM, INC.

    CPC classification number: H03F3/602 H03F2200/111

    Abstract: The invention is a dual band power amplifier with a small footprint having excellent band-to­band isolation. An improved second and fourth harmonic trap at the output of the low band power amplifier comprises a first capacitance shunted to ground placed in series with an inductance, the inductance preferably in the form of a transmission line of predetermined length, and a second capacitance coupled between an intermediate point of the transmission line inductance and ground. Band-to-band isolation can be additively increased by further forming a ground loop between the outputs of the two power amplifiers. The ground loop further isolates the high band amplifier from the low band amplifier by causing the magnetic fields generated around the output wire bonds of the lower band power amplifier to set up circulating currents primarily in the ground loop, rather than coupling into the output wire bonds of the higher band power amplifier.

    Short-range vehicular radar system
    127.
    发明公开
    Short-range vehicular radar system 审中-公开
    短程车载雷达系统

    公开(公告)号:EP1494043A3

    公开(公告)日:2005-04-27

    申请号:EP04103096.6

    申请日:2004-06-30

    Applicant: M/A-COM, INC.

    Abstract: Short-range vehicular radar systems are described. In one implementation, an apparatus used in radar applications includes a programmable digital receiver (114) having an adaptable interference filter (216, 218) that is configured to reject radar pulses received from another radar system. In another implementation, a short-range vehicular radar system includes receive and transmission antennae (116(1), 116(2)), a programmable delay generator (201), and programmable receiver (114). The programmable delay generator (201) is configured to control transmission of pulses from the transmission antenna (116(2)) at randomly selected times to prevent ambiguities associated with target objects that are distances away from the transmission antenna (116(2)) that are greater than the speed of light times the pulse repetition rate divided by two. The programmable receiver (114) is calibrated to sample signals received by the receive antenna (116(1)) relative to when the pulses are emitted from the transmission antenna (116(2)).

    Abstract translation: 描述了短程车辆雷达系统。 在一个实施方式中,雷达应用中使用的设备包括具有自适应干涉滤波器(216,218)的可编程数字接收器(114),其被配置为拒绝从另一雷达系统接收的雷达脉冲。 在另一实现中,短程车辆雷达系统包括接收和发射天线(116(1),116(2)),可编程延迟发生器(201)和可编程接收器(114)。 可编程延迟发生器(201)被配置为在随机选择的时间控制来自发射天线(116(2))的脉冲的发射,以防止与远离发射天线(116(2))的距离的目标物体相关联的模糊 大于光速乘以脉冲重复频率的二分之一。 相对于从发射天线(116(2))发射脉冲时,可编程接收器(114)被校准以采样由接收天线(116(1))接收的信号。

    Apparatus for signal transitioning from a device to a waveguide
    129.
    发明公开
    Apparatus for signal transitioning from a device to a waveguide 有权
    用于在波导从一个设备的信号过渡部

    公开(公告)号:EP1494309A1

    公开(公告)日:2005-01-05

    申请号:EP04253897.5

    申请日:2004-06-29

    Applicant: M/A-COM, INC.

    CPC classification number: H01P5/107 H01P5/08

    Abstract: A signal transmission apparatus (200) including a first waveguide (205), a second waveguide (207) and a third waveguide (215). The transitions between the first, second and third waveguides are substantially co-impedance matched. The signal transmission apparatus may be a multi-port device, and may be used to transition high frequency signals from one component to another in a variety of applications.

    Short-range vehicular radar system
    130.
    发明公开
    Short-range vehicular radar system 审中-公开
    短程车辆雷达系统

    公开(公告)号:EP1494043A2

    公开(公告)日:2005-01-05

    申请号:EP04103096.6

    申请日:2004-06-30

    Applicant: M/A-COM, INC.

    Abstract: Short-range vehicular radar systems are described. In one implementation, an apparatus used in radar applications includes a programmable digital receiver (114) having an adaptable interference filter (216, 218) that is configured to reject radar pulses received from another radar system. In another implementation, a short-range vehicular radar system includes receive and transmission antennae (116(1), 116(2)), a programmable delay generator (201), and programmable receiver (114). The programmable delay generator (201) is configured to control transmission of pulses from the transmission antenna (116(2)) at randomly selected times to prevent ambiguities associated with target objects that are distances away from the transmission antenna (116(2)) that are greater than the speed of light times the pulse repetition rate divided by two. The programmable receiver (114) is calibrated to sample signals received by the receive antenna (116(1)) relative to when the pulses are emitted from the transmission antenna (116(2)).

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