公开(公告)号：EP0800737A4

公开(公告)日：2002-07-24

申请号：EP95944265

申请日：1995-12-28

申请人： MOTOROLA INC

发明人： 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 C ,  BAILEY DONALD E

IPC分类号： 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 ,  H04B7/04 ,  H04L27/20

CPC分类号： H04B7/0691 ,  H01Q1/246 ,  H01Q3/2605 ,  H03D3/006 ,  H03M1/121 ,  H04B1/0003 ,  H04B1/001 ,  H04B1/0032 ,  H04B1/26 ,  H04B1/28 ,  H04B7/06 ,  H04B7/0802 ,  H04B7/0874 ,  H04B7/24 ,  H04J1/05 ,  H04L1/06 ,  H04L1/22 ,  H04L25/14 ,  H04L27/2647 ,  H04W88/08

摘要： 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.

公开(公告)号：EP0885510A4

公开(公告)日：2003-02-05

申请号：EP97901934

申请日：1997-01-15

申请人： MOTOROLA INC

发明人： LUREY DANIEL M ,  LUZ YUDA Y ,  RADER SHEILA M ,  ROTTINGHAUS ALAN P

IPC分类号： 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 ,  H04B7/26 ,  H04L1/06 ,  H04L1/22 ,  H04L27/20 ,  H04W4/18 ,  H04W88/06 ,  H04L25/08

CPC分类号： 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 ,  H04B7/0691 ,  H04B7/0802 ,  H04B7/0874 ,  H04B7/18515 ,  H04B7/24 ,  H04L1/06 ,  H04L1/22 ,  H04W4/18 ,  H04W88/06

摘要： An apparatus and a method for routing digitized radio frequency (RF) signals (140-143) to a plurality of paths are described herein. In accordance with a first preferred embodiment, the apparatus includes a digital converter/modulator (DUC) (125 or 129) coupled to a scaling and switching network (100N) which includes, at least, a first, second, third and fourth digital switch, and a first, second and third adder. Within the scaling and switching network, the first digital switch is responsive to the DUC. The first adder is responsive to the first and second digital switches, while the second adder is responsive to the third and fourth digital switches. Finally, the third adder is responsive to the first and second adders.

公开(公告)号：EP1232571A4

公开(公告)日：2004-03-24

申请号：EP00959723

申请日：2000-08-31

申请人： MOTOROLA INC

发明人： PFEIL JEFF L ,  ROTTINGHAUS ALAN P ,  HENDERSON STEPHEN W ,  TAPIA JAVIER J

IPC分类号： G01S5/12 ,  H04B7/08 ,  H04W64/00 ,  H04B1/38 ,  H04B7/216 ,  H04M1/00 ,  H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/12 ,  H04B7/086

摘要： An apparatus (100) and method dynamically allocates radio frequency receive path resources as required by a programmable location engine (112). The programmable location engine (112) employs cascaded time of arrival and direction of arrival algorithms to determine per remote unit location data. The apparatus (100) employs a phased array antenna (104) and a programmable receiver switching apparatus (108). A plurality of radio frequency receivers (102a-102n) receive a plurality of different carriers, such as CDMA carriers, on each of a different phased array antenna element (106a-106d). An RF switching matrix (126) and mobile location shared resource controller (110) dynamically switch the plurality of radio frequency receivers (102a-102b) to not only receive the different carriers on each of the different phased antenna radio elements to determine time of arrival information, but alternately receive a same carrier signal over all or a portion of the phased array antenna elements to determine direction of arrival information.