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公开(公告)号:PT91688A
公开(公告)日:1990-03-30
申请号:PT9168889
申请日:1989-09-11
Applicant: MOTOROLA INC
Inventor: SMITH JOHN M , LONG JAMES F , WANAT RONALD J , KOBRINETZ ANTHONY
IPC: C07K20060101 , H04B7/26 , H04H20/81 , H04M20060101 , H04W88/08 , H04M
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公开(公告)号:GB2301990B
公开(公告)日:1999-05-05
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 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:AU6938098A
公开(公告)日:1998-10-22
申请号:AU6938098
申请日:1998-02-25
Applicant: MOTOROLA INC
Inventor: MORRIS GARRON K , SCHMIDT DETLEF W , SMITH JOHN M
Abstract: According to an aspect of the present invention, the foregoing needs are addressed by an apparatus for cooling a heat source (10), including a carrier plate (19) having a channel (28, 38) therein. The channel has an inlet end (30) and an outlet end (31). A cooling region (46) is disposed in the carrier plate and is in communication with the channel. The cooling region is sized to be disposed proximate the heat source. A member (40) having an orifice (42) therein is disposed in the cooling region. A ratio between a thickness of the member and a width of the orifice is less than 0.9.
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公开(公告)号:GR3026368T3
公开(公告)日:1998-06-30
申请号:GR980400553
申请日:1998-03-13
Applicant: MOTOROLA INC
Inventor: SMITH JOHN M , SCHULER JOSEPH J
Abstract: An antenna switching system for handling high traffic sectors in a cellular radiotelephone system. The system switches the cell's base station transmitters (210) to sectors that have more mobile traffic than they can handle. The additional transmitters (210) increase the number of frequencies in the overloaded sector, thereby allowing a greater amount of mobile traffic to use the cell.
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公开(公告)号:GB2311916A
公开(公告)日:1997-10-08
申请号:GB9711998
申请日:1995-12-28
Applicant: MOTOROLA INC
Inventor: LUREY DANIEL MORRIS , ROTTINGHAUS ALAN P , RADER SHEILA MARIE , LUZ YUDA YEHUDA , SMITH PAUL FIELDING , SMITH JOHN M , PINCKLEY DANNY THOMAS , LAIRD KEVIN MICHAEL , KOBRINETZ TONY , ELDER ROBERT , BAILEY DONALD E
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 , H04L27/06 , H04L27/20
Abstract: A digital receiver (200) and a transmitter (300), wherein the digital receiver includes a plurality of antennas (202) for receiving uplink radio frequency signals; a plurality of analog to digital converters (210) for converting the received radio frequency signals into digital signals; a switched digital down converter (214) for down converting one of the digital signals to a baseband IF signal; and a channel processor (228) for recovering one of a plurality of communication channels contained within the baseband IF signal.
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公开(公告)号:FR2729026B1
公开(公告)日:1997-07-25
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 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:FI972748A0
公开(公告)日:1997-06-25
申请号:FI972748
申请日:1997-06-25
Applicant: MOTOROLA INC
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公开(公告)号:SE9702156D0
公开(公告)日:1997-06-06
申请号:SE9702156
申请日:1997-06-06
Applicant: MOTOROLA INC
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公开(公告)号:DE19581527T1
公开(公告)日:1997-05-07
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 , H04L27/32
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:PT91688B
公开(公告)日:1995-12-29
申请号:PT9168889
申请日:1989-09-11
Applicant: MOTOROLA INC
Inventor: SMITH JOHN M , LONG JAMES F , WANAT RONALD J , KOBRINETZ ANTHONY
IPC: C07K20060101 , H04B7/26 , H04H20/81 , H04M20060101 , H04W88/08 , H04Q7/00
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