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    Wireless telecommunications multi-carrier receiver architecture
    2.
    发明公开
    Wireless telecommunications multi-carrier receiver architecture 审中-公开
    无线Achitecture多载波消息接收者

    公开(公告)号：EP1187351A3

    公开(公告)日：2004-01-02

    申请号：EP01113538.1

    申请日：2001-06-12

    申请人： Northrop Grumman Corporation

    发明人： Oyama, Bert ,  Upton, Eric L. ,  Allen, Barry R. ,  Kintis, Mark ,  Smith, Andrew D. ,  Talbot, Craig R. ,  Brunone, David J. ,  Martin, Donald R. ,  Skones, William M. ,  Smith, Ronald P. ,  Moretti, Vincent C. ,  Claxton, Shimen K.

    IPC分类号： H04B1/28 ,  H03D7/16

    CPC分类号： H04B1/28 ,  H03D7/163

    摘要： A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    A multi-carrier receiver for a wireless telecommunication system
    4.
    发明公开
    A multi-carrier receiver for a wireless telecommunication system 有权
    一个无线通信系统的多载波接收器

    公开(公告)号：EP1168638A3

    公开(公告)日：2006-10-11

    申请号：EP01113567.0

    申请日：2001-06-13

    申请人： NORTHROP GRUMMAN CORPORATION

    发明人： Claxton, Shimen K. ,  Oyama, Bert K. ,  Allen, Barry R. ,  Kintis, Mark ,  Smith, Andrew D. ,  Talbott, Craig R. ,  Brunone, David J. ,  Martin, Donald R. ,  Skones, William M. ,  Moretti, Vincent C.

    IPC分类号： H04B1/28

    CPC分类号： H04B1/0007 ,  H03D7/163 ,  H04B1/0003 ,  H04B1/0028 ,  H04B1/0032 ,  H04B1/28

    摘要： A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    A receiver including frequency down-converter and analog-to-digital converter for a wireless telecommunication system
    5.
    发明公开
    A receiver including frequency down-converter and analog-to-digital converter for a wireless telecommunication system 有权
    接收机与频率转换器和模拟 - 数字转换器，用于在无线通信系统

    公开(公告)号：EP1168637A3

    公开(公告)日：2006-10-11

    申请号：EP01113566.2

    申请日：2001-06-13

    申请人： NORTHROP GRUMMAN CORPORATION

    发明人： Claxton, Shimen K. ,  Oyama, Bert K. ,  Kintis, Mark ,  Smith, Andrew D. ,  Talbott, Craig R. ,  Martin, Donald R. ,  Skones, William M. ,  Moretti, Vincent C.

    IPC分类号： H04B1/28

    CPC分类号： H04B1/0007 ,  H04B1/0003 ,  H04B1/28

    摘要： A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    Time-multiplexed multi-carrier transmitter
    6.
    发明公开
    Time-multiplexed multi-carrier transmitter 审中-公开
    在时间复用的多载波发射机

    公开(公告)号：EP1249960A3

    公开(公告)日：2005-07-20

    申请号：EP02008417.4

    申请日：2002-04-12

    申请人： Northrop Grumman Corporation

    发明人： Claxton, Shimen K. ,  Fong, Flavia S. ,  Kintis, Mark (NMI) ,  Martin, Donald R. ,  Upton, Eric L. ,  Smith, Andrew D. ,  Wong, Brian P.

    IPC分类号： H04L5/06 ,  H04L27/26

    CPC分类号： H04L5/06

    摘要： A time multiplexed multiple carrier transmitter includes a first data encoder that produces first transmit data and a second data encoder that produces second transmit data. In addition, the transmitter includes a digital multiplexer coupled to the first and the second data encoders. The digital multiplexer provides a transmit signal output. A transmit frequency upconverter coupled to a power amplifier and the transmit signal output provides a final upconversion (or direct upconversion) to a transmit frequency for each channel. The transmitter also includes a multiplexer control circuit coupled to the digital multiplexer through a multiplexer control input. The multiplexer control circuit produces a multiplexer control signal on the multiplex control input that selects between the first and second data encoders according to a transmit schedule. The transmit schedule determines when, and the frequency at which, the transmitter selects and transmits data from each data encoder.

    A receiver including low noise amplifier and frequency down-converter for a wireless telecommunication system
    7.
    发明公开
    A receiver including low noise amplifier and frequency down-converter for a wireless telecommunication system 审中-公开
    接收器低噪声放大器和频率转换器，用于在无线通信系统

    公开(公告)号：EP1168639A3

    公开(公告)日：2004-01-02

    申请号：EP01113568.8

    申请日：2001-06-13

    申请人： Northrop Grumman Corporation

    发明人： Claxton, Shimen K. ,  Allen, Barry R. ,  Kintis, Mark ,  Smith, Andrew D. ,  Talbott, Craig R. ,  Brunone, David J. ,  Martin, Donald R. ,  Skones, William M. ,  Moretti, Vincent C.

    IPC分类号： H04B1/28

    CPC分类号： H04B1/0007 ,  H04B1/0003 ,  H04B1/28

    摘要： A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.

    A multi-carrier receiver including an analog-to-digital converter for a wireless telecommunication system
    8.
    发明公开
    A multi-carrier receiver including an analog-to-digital converter for a wireless telecommunication system 有权
    无线的无线电消息系统的多载波接收器与模拟 - 数字转换器

    公开(公告)号：EP1168641A3

    公开(公告)日：2006-10-18

    申请号：EP01113572.0

    申请日：2001-06-13

    申请人： NORTHROP GRUMMAN CORPORATION

    发明人： Claxton, Shimen K. ,  Oyama, Bert K. ,  Kintis, Mark ,  Smith, Andrew D. ,  Talbott, Craig R. ,  Martin, Donald R. ,  Skones, William M. ,  Smith Ronald P. ,  Moretti, Vincent C.

    IPC分类号： H04B1/28

    CPC分类号： H04B1/0007 ,  H04B1/0003 ,  H04B1/28

    摘要： A receiver (10) for a wireless telecommunications system that provides relatively wideband signal processing of received signals without increased signal distortion so that multiple received signals can be simultaneously processed. The receiver (10) includes a specialized LNA (16), frequency down-converter (18) and ADC (20) to perform the wideband signal processing while maintaining receiver performance. The frequency down-converter (18) employs a suitable mixer (28), BPA (32), attenuator (34), and transformer (36) that are tuned to provide the desired frequency down-conversion and amplitude control over the desired wideband. The down-converter devices are selected depending on the particular performance criteria of the ADC (20). A specialized digital channelizer (22) is included in the receiver (10) that receives the digital signal from the ADC (20), and separates the signals into the multiple channels. In one embodiment, the frequency down-conversion is performed in a single down-conversion process, and the ADC (20) employs delta-sigma processing to provide digital conversion over the complete frequency band. In an alternate embodiment, the frequency down-conversion is performed in a double down-conversion process so that a less complex ADC (62) can be used.