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    MULTI-STANDARD TRANSMITTER SYSTEM AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM
    1.
    发明专利
    MULTI-STANDARD TRANSMITTER SYSTEM AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：AU2003209016A1

    公开(公告)日：2003-09-02

    申请号：AU2003209016

    申请日：2003-02-04

    Applicant: QUALCOMM INC

    Inventor： MOLLENKOPF STEVEN M ,  SEE ANDREW ,  WALKER BRETT C

    IPC: H04B1/04 ,  H04L27/20 ,  H03M1/66

    Abstract: A transmitter (108) converts a digital baseband signal input (150) for transmission by an antenna (114) to support multiple communication standards. An over-deviation phase multiplier (130) increases signal phase deviation by a factor of M. A digital phase modulator (176) applies trigonometric lookup tables. A digital intermediate frequency up-converter (132) up-shifts frequencies of desired signal content. First and second digital-to-analog converters (DACs) (134) and (136) use relatively low-bit operations, which add DAC noise (212). First and second low pass filters (138) and (140) apply rejection above frequencies of desired signal content. An analog I/Q modulator (142) converts from complex to real signals, adding an unwanted signal spaced from the desired signal content by an intermediate frequency multiple. A limiter (144) reduces amplitude modulated noise. An over-deviation phase divider (146) divides signal phase deviation by 1/M to reduce phase modulated noise.

    Multi-standard transmitter and method for a wireless communication system
    2.
    发明专利
    Multi-standard transmitter and method for a wireless communication system 未知

    公开(公告)号：AU2003209016A8

    公开(公告)日：2003-09-02

    申请号：AU2003209016

    申请日：2003-02-04

    Applicant: QUALCOMM INC

    Inventor： WALKER BRETT C ,  MOLLENKOPF STEVEN M ,  SEE ANDREW

    IPC: H04B1/04 ,  H04L27/20 ,  H03M1/66

    Abstract: A transmitter (108) converts a digital baseband signal input (150) for transmission by an antenna (114) to support multiple communication standards. An over-deviation phase multiplier (130) increases signal phase deviation by a factor of M. A digital phase modulator (176) applies trigonometric lookup tables. A digital intermediate frequency up-converter (132) up-shifts frequencies of desired signal content. First and second digital-to-analog converters (DACs) (134) and (136) use relatively low-bit operations, which add DAC noise (212). First and second low pass filters (138) and (140) apply rejection above frequencies of desired signal content. An analog I/Q modulator (142) converts from complex to real signals, adding an unwanted signal spaced from the desired signal content by an intermediate frequency multiple. A limiter (144) reduces amplitude modulated noise. An over-deviation phase divider (146) divides signal phase deviation by 1/M to reduce phase modulated noise.

    MULTI-STANDARD TRANSMITTER AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM
    3.
    发明专利
    MULTI-STANDARD TRANSMITTER AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2474505A1

    公开(公告)日：2003-08-14

    申请号：CA2474505

    申请日：2003-02-04

    Applicant: QUALCOMM INC

    Inventor： SEE ANDREW ,  WALKER BRETT C ,  MOLLENKOPF STEVEN M

    IPC: H04B1/04 ,  H04L27/20 ,  H03M1/66

    Abstract: A transmitter (108) converts a digital baseband signal input (150) for transmission by an antenna (114) to support multiple communication standards. An over-deviation phase multiplier (130) increases signal phase deviation by a factor of M. A digital phase modulator (176) applies trigonometric lookup tables. A digital intermediate frequency up-converter (132) up-shifts frequencies of desired signal content. First and second digital-to-analog converters (DACs) (134) and (136) use relatively low-bit operations, which add DAC noise (212). First and second low pass filters (138) and (140) apply rejection above frequencies of desired signal content. An analog I/Q modulator (142) converts from complex to real signals, adding an unwanted signal spaced from the desired signal content by an intermediate frequency multiple. A limiter (144) reduces amplitude modulated noise. An over-deviation phase divider (146) divides signal phase deviation by 1/M to reduce phase modulated noise.

    4.
    发明专利
    未知

    公开(公告)号：AT318027T

    公开(公告)日：2006-03-15

    申请号：AT02793873

    申请日：2002-11-01

    Applicant: QUALCOMM INC

    Inventor： WILBORN THOMAS B ,  GARDNER WILLIAM R ,  MOLLENKOPF STEVEN M

    IPC: H04B7/26 ,  H04B1/00 ,  H04B7/005 ,  H04B17/00

    Abstract: A method, apparatus and computer program product for predicting received signal strength in a wireless mobile receiver. The invention bounds the range of allowed values for a next predicted signal. The bounded prediction compensates for erroneous values from multipath fading. The predicted signal strength is used to set the mobile receiver amplifier gain to the desired level.

    MULTI-STANDARD TRANSMITTER AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM
    8.
    发明申请
    MULTI-STANDARD TRANSMITTER AND METHOD FOR A WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于无线通信系统的多标准发射机和方法

    公开(公告)号：WO03067841A3

    公开(公告)日：2003-09-12

    申请号：PCT/US0303557

    申请日：2003-02-04

    Applicant: QUALCOMM INC

    Inventor： MOLLENKOPF STEVEN M ,  SEE ANDREW ,  WALKER BRETT C

    IPC: H04B1/04 ,  H04L27/20 ,  H03M1/66

    CPC classification number: H04L27/2017 ,  H04B1/0475 ,  H04L27/2092

    Abstract: A transmitter (108) converts a digital baseband signal input (150) for transmission by an antenna (114) to support multiple communication standards. An over-deviation phase multiplier (130) increases signal phase deviation by a factor of M. A digital phase modulator (176) applies trigonometric lookup tables. A digital intermediate frequency up-converter (132) up-shifts frequencies of desired signal content. First and second digital-to-analog converters (DACs) (134) and (136) use relatively low-bit operations, which add DAC noise (212). First and second low pass filters (138) and (140) apply rejection above frequencies of desired signal content. An analog I/Q modulator (142) converts from complex to real signals, adding an unwanted signal spaced from the desired signal content by an intermediate frequency multiple. A limiter (144) reduces amplitude modulated noise. An over-deviation phase divider (146) divides signal phase deviation by 1/M to reduce phase modulated noise.

    Abstract translation: 发射机（108）转换数字基带信号输入（150）以供天线（114）发射以支持多种通信标准。 过偏相位乘法器（130）将信号相位偏移增加一个因子M.数字相位调制器（176）应用三角查找表。 数字中频上变频器（132）上变频所需信号内容的频率。 第一和第二数模转换器（DAC）（134）和（136）使用相对较低位的操作，这增加了DAC噪声（212）。 第一和第二低通滤波器（138）和（140）在期望信号内容的频率上施加抑制。 模拟I / Q调制器（142）从复信号转换成实信号，将期望的信号内容间隔不想要的信号加上中​​频倍数。 限幅器（144）降低调幅噪声。 过偏相位分配器（146）将信号相位偏差除以1 / M以减少相位调制噪声。

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