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1. 发明申请

WO1996021292A1 WIDEBAND FREQUENCY SIGNAL DIGITIZER AND METHOD 审中-公开
标题翻译：宽带频率信号数字和方法
公开(公告)号：WO1996021292A1
公开(公告)日：1996-07-11
申请号：PCT/US1995015183
申请日：1995-11-22
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , ELDER, Robert, C.
IPC分类号： H04J01/05
CPC分类号： H04B1/0025 , H03D3/006 , H03M1/121 , H04B1/00 , H04B1/0003 , H04B1/0032 , H04B1/26 , H04B1/28 , H04J1/05 , H04L1/06 , H04L1/22 , H04W4/18 , H04W28/06 , H04W88/00
摘要： A wideband frequency digitizer (10) and method for digitizing multiple bands of a wideband frequency signal. The digitizer (10) and method providing for optimally positioning a segment (402) of the wideband frequency signal within a Nyquist band of an analog-to-digital converter (36). 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.
摘要翻译：一种用于数字化宽带频率信号的多个频带的宽带频率数字化仪（10）和方法。数字转换器（10）和方法提供了在模数转换器（36）的奈奎斯特频带内最佳地定位宽带频率信号的段（402）。宽带频率信号的剩余片段（402）相对于第一片段紧密定位，使得整个宽带频率信号（400）能够使用单个或多个模数转换器（36）容易地数字化，同时减少或消除不期望的杂散信号。

2. 发明申请

WO1995020277A1 METHOD AND APPARATUS FOR SIMULTANEOUS WIDEBAND AND NARROWBAND WIRELESS COMMUNICATION 审中-公开
标题翻译：同步宽带和窄带无线通信的方法与装置
公开(公告)号：WO1995020277A1
公开(公告)日：1995-07-27
申请号：PCT/US1994013925
申请日：1994-12-01
申请人： MOTOROLA INC.
发明人： MOTOROLA INC. , LONG, James, F. , ELDER, Robert, C.
IPC分类号： H04J01/00
CPC分类号： H04J13/00 , H04B7/2631 , H04B7/2646 , H04J1/00 , H04W88/10
摘要： A wireless communication system for simultaneously communicating overlapping wideband and narrowband signals. The system includes a transmitting station for embedding one or more narrowband signals (3-5) in a wideband signal (1) having a frequency spectrum encompassing the narrowband signals, and transmitting the resulting composite wideband signal (2). The system also includes a receiving station for receiving a composite wideband signal (60) and separating the embedded narrowband signal(s) (62, 63) from the wideband signal (61). In one embodiment, a cellular radiotelephone base station (35) is operable as both the transmitting and receiving station, communicating with remote subscriber units (29-31) havng conventional transceivers (FDMA, TDMA and/or CDMA). The base station transmitter circuitry (10-17) includes FM and CDMA signal generators (10, 12), a combiner (15) for embedding the narrowband signal (3-5) in the wideband signal (1), and an AGC (14) and power detectors (11, 13) for controlling the narrowband signal power. The receiving circuitry includes a CDMA processing circuit having an FFT circuit (41), a threshold detector (42), a notch filter (43), and an inverse FFT circuit (44) for separating narrowband signals (62, 63) from the CDMA signal (61).
摘要翻译：一种用于同时通信重叠宽带和窄带信号的无线通信系统。该系统包括用于在具有包围窄带信号的频谱的宽带信号（1）中嵌入一个或多个窄带信号（3-5）并发送所得到的复合宽带信号（2）的发送站。该系统还包括接收站，用于接收复合宽带信号（60）并将嵌入的窄带信号（62,63）与宽带信号（61）分离。在一个实施例中，蜂窝无线电话基站（35）可操作为发射和接收台，与常规收发器（FDMA，TDMA和/或CDMA）的远程用户单元（29-31）通信。基站发射机电路（10-17）包括FM和CDMA信号发生器（10,12），用于将窄带信号（3-5）嵌入宽带信号（1）中的组合器（15）和AGC（14））和用于控制窄带信号功率的功率检测器（11,13）。接收电路包括具有FFT电路（41），阈值检测器（42），陷波滤波器（43）和用于将窄带信号（62,63）与CDMA分离的逆FFT电路（44）的CDMA处理电路信号（61）。

3. 发明授权

EP0800737B1 MULTIPLE ACCESS DIGITAL TRANSMITTER AND RECEIVER 有权转让
标题翻译：数字发送器/接收器，用于多址系统
公开(公告)号：EP0800737B1
公开(公告)日：2004-02-18
申请号：EP95944265.8
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： H04L27/06 , H04L27/20 , H04B7/04 , H04B7/24 , H04B7/06 , H04B7/08
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

4. 发明公开

EP0800737A1 MULTIPLE ACCESS DIGITAL TRANSMITTER AND RECEIVER 有权转让
标题翻译：数字发送器/接收器，用于多址系统
公开(公告)号：EP0800737A1
公开(公告)日：1997-10-15
申请号：EP95944265.0
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 , H01Q1 , H01Q3 , H03M1 , H04B1 , H04B7 , H04J1 , H04L1 , H04L25 , H03D3 , H04W88
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.

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