公开(公告)号：PL316636A1

公开(公告)日：1997-02-03

申请号：PL31663695

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 ,  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).

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

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).

公开(公告)号：SE9603102D0

公开(公告)日：1996-08-28

申请号：SE9603102

申请日：1996-08-28

Applicant: MOTOROLA INC

Inventor： SMITH PAUL F ,  SMITH JOHN M ,  ROTTINGHAUS ALAN P ,  RADER SHELIA M ,  PINCKLEY DANNY T ,  LUZ YUDA Y ,  LUREY DANIEL M ,  LAIRD KEVIN M ,  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).

公开(公告)号：SE9603089D0

公开(公告)日：1996-08-27

申请号：SE9603089

申请日：1996-08-27

Applicant: MOTOROLA INC

Inventor： ELDER ROBERT C

IPC: H03D3/00 ,  H03D7/00 ,  H03M1/12 ,  H04B1/00 ,  H04B1/18 ,  H04B1/26 ,  H04B1/28 ,  H04B1/40 ,  H04J1/00 ,  H04J1/05 ,  H04L1/06 ,  H04L1/22 ,  H04W4/18 ,  H04W28/06 ,  H04W88/00 ,  H04L

Abstract: A wideband frequency signal digitizer and method for digitizing multiple bands of a wideband frequency signal. The digitizer and method providing for optimally positioning a segment (402) of the wideband frequency signal within a Nyquist band of an analog-to-digital converter. Remaining segments (402) of the wideband frequency signal are closely positioned relative to the first segment such that the entire wideband frequency signal (400) is easily digitized using a single or multiple analog-to-digital converters (36) while reducing or eliminating undesirable spurious signals.

公开(公告)号：FR2729026A1

公开(公告)日：1996-07-05

申请号：FR9513455

申请日：1995-11-14

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 M ,  KOBRINETZ TONY ,  ELDER ROBERT C

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 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).

公开(公告)号：FR2729022A1

公开(公告)日：1996-07-05

申请号：FR9515130

申请日：1995-12-20

Applicant: MOTOROLA INC

Inventor： ELDER ROBERT C

IPC: H03D7/00 ,  H03D3/00 ,  H03M1/12 ,  H04B1/00 ,  H04B1/18 ,  H04B1/26 ,  H04B1/28 ,  H04B1/40 ,  H04J1/00 ,  H04J1/05 ,  H04L1/06 ,  H04L1/22 ,  H04W4/18 ,  H04W28/06 ,  H04W88/00 ,  H04Q7/22

Abstract: A wideband frequency signal digitizer and method for digitizing multiple bands of a wideband frequency signal. The digitizer and method providing for optimally positioning a segment (402) of the wideband frequency signal within a Nyquist band of an analog-to-digital converter. Remaining segments (402) of the wideband frequency signal are closely positioned relative to the first segment such that the entire wideband frequency signal (400) is easily digitized using a single or multiple analog-to-digital converters (36) while reducing or eliminating undesirable spurious signals.