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公开(公告)号：GB2301990A
公开(公告)日：1996-12-18
申请号：GB9617716
申请日：1995-12-05
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHELIA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT , BAILEY DONALD E
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04Q7/30
Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converts and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).
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公开(公告)号：TR9501721A1
公开(公告)日：1996-10-21
申请号：TR9501721
申请日：1995-12-29
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHELIA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT C , BAILEY DONALD E
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04B
CPC classification number: H04B7/0691 , H01Q1/246 , H01Q3/2605 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/165 , H04B1/0003 , H04B1/001 , H04B1/0017 , H04B1/0021 , H04B1/0483 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/0802 , H04B7/0874 , H04B7/18515 , H04B7/24 , H04L1/06 , H04L1/22 , H04W4/18 , H04W88/06
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公开(公告)号：TR199501721A1
公开(公告)日：1996-10-21
申请号：TR9501721
申请日：1995-12-29
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHELIA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT C , BAILEY DONALD E
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04B
Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).
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公开(公告)号：FI115877B
公开(公告)日：2005-07-29
申请号：FI963346
申请日：1996-08-27
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHEILA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT C , BAILEY DONALD E
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04B7/02
Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).
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公开(公告)号：CA2206311C
公开(公告)日：2003-11-11
申请号：CA2206311
申请日：1995-12-28
Applicant: MOTOROLA INC
Inventor： LUZ YUDA YEHUDA , LAIRD KEVIN MICHAEL , RADER SHEILA MARIE , LUREY DANIEL MORRIS , ROTTINGHAUS ALAN P , SMITH JOHN M , BAILEY DONALD E , SMITH PAUL FIELDING , ELDER ROBERT C , KOBRINETZ TONY , PINCKLEY DANNY THOMAS
IPC: H04L27/18 , H01Q1/24 , H01Q3/26 , H03D3/00 , H03M1/12 , H04B1/04 , H04B1/26 , H04B1/28 , H04B7/06 , H04B7/08 , H04B7/24 , H04J1/05 , H04L1/06 , H04L1/22 , H04L25/14 , H04L27/26 , H04W88/08 , H04B1/18 , H04L27/00
Abstract: A wideband multi-channel transmitter and receiver (transceiver) for cellul ar communication systems. The transceiver includes programmable digital down converters (DDCs) and programmable digital up converters (DUCs) providing a range of decimation/interpolation ratios to accommodate multiple access, i.e . AMPS, NAMPS, USDC, PDC, for varying signal formats and bandwidths. The method of digitizing a wideband frequency signal used by DDCs and DUCs has application to digitizing any wideband signal occupying continuous or discontinuous spectrum while reducing sampling frequency and hardware requirements. The arrangement of elements in the transceiver allows channel processing functions to be performed centrally, and transceiver functions to be performed at a communication cell site. The result is a savings to the operator by way of physical space required for equipment and in more centralized operati on and maintenance activities.
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Patent Agency Ranking
公开(公告)号：DE19581527C2
公开(公告)日：2002-08-01
申请号：DE19581527
申请日：1995-12-05
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHELIA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT C , BAILEY DONALD E
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04Q7/20
Abstract: A multi-channel digital transceiver (400) receives uplink radio frequency signals and converts these signals to digital intermediate frequency signals. Digital signal processing, including a digital converter module (426), is employed to select digital intermediate frequency signals received at a plurality of antennas (412) and to convert these signals to baseband signals. The baseband signals are processed to recover a communication channel therefrom. Downlink baseband signals are also processed and digital signal processing within the digital converter module (426) up converters and modulates the downlink baseband signals to digital intermediate frequency signals. The digital intermediate frequency signals are converted to analog radio frequency signals, amplified and radiated from transmit antennas (420).
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公开(公告)号：GB2311916B
公开(公告)日：2000-01-19
申请号：GB9711998
申请日：1995-12-28
Applicant: MOTOROLA INC
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公开(公告)号：BR9510374A
公开(公告)日：1998-06-02
申请号：BR9510374
申请日：1995-12-28
Applicant: MOTOROLA INC
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公开(公告)号：DE19581876T1
公开(公告)日：1997-11-27
申请号：DE19581876
申请日：1995-12-28
Applicant: MOTOROLA INC
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公开(公告)号：MX9603701A
公开(公告)日：1997-07-31
申请号：MX9603701
申请日：1995-12-05
Applicant: MOTOROLA INC
Inventor： SMITH PAUL FIELDING , SMITH JOHN M , ROTTINGHAUS ALAN P , RADER SHELIA MARIE , PINCKLEY DANNY THOMAS , LUZ YUDA YEHUDA , LUREY DANIEL MORRIS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY
IPC: H03D7/00 , H01Q1/24 , H01Q3/26 , H03B28/00 , H03C1/00 , H03C3/00 , H03D7/16 , H04B1/04 , H04B1/16 , H04B1/26 , H04B1/28 , H04B1/38 , H04B1/40 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/185 , H04B7/24 , H04L1/06 , H04L1/22 , H04L27/20 , H04W4/18 , H04W88/06 , H04B07/02
Abstract: Se describe un transceptor digital de canales multiples (400) que recibe señales de radiofrecuencia de enlace ascendente y convierte éstas en señales de frecuencia intermedia digitales. El procesamiento de señal digital incluye un modulo convertidor digital (426), que se emplea para seleccionar las señales de frecuencia intermedia digital recibidas en una pluralidad de antenas (412) y para convertir estas señales en señales de banda base. Las señales de banda base se procesan para recuperar un canal de comunicacion desde la misma. Las señales de banda base de enlace descendente también se procesan y el procesamiento de señal digital dentro del modulo convertidor digital (426) convierte en forma descendente y modula las señales de banda de enlace descendente en señales de frecuencia intermedia digital. Las señales de frecuencia intermedia digital se convierte en señales de radiofrecuencia analogicas, amplificadas y radiadas desde antenas de transmision (420).
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