RECONFIGURABLE DOWNCONVERTER FOR A MULTI-BAND POSITIONING RECEIVER
    21.
    发明申请
    RECONFIGURABLE DOWNCONVERTER FOR A MULTI-BAND POSITIONING RECEIVER 审中-公开
    可重新配置的下变频器用于多频段定位接收器

    公开(公告)号:WO2006086118A3

    公开(公告)日:2007-07-26

    申请号:PCT/US2006001454

    申请日:2006-01-13

    CPC classification number: G01S19/32 G01S19/33 G01S19/36

    Abstract: A reconfigurable downconverter (10) for a multi-band positioning receiver is operable with an RF synthesizer (18) with fixed output frequency, and a fixed wideband RF input (28). The downconverter (10) includes an RF mixer (12) operable to accept a range of frequencies that encompass the GPS and Galileo frequency bands and to output a downconverted IF signal (32). A fixed frequency local oscillator signal (34) is coupled to the RF mixer (12). At least one IF processor 14 further downconverts the downconverted IF signal (32) to at least one baseband signal (22). At least one of the IF processors (14) is reconfigurable for different frequency bands.

    Abstract translation: 用于多频带定位接收机的可重新配置的下变频器(10)可与具有固定输出频率的RF合成器(18)和固定宽带RF输入(28)一起操作。 下变频器(10)包括RF混频器(12),其可操作以接受包含GPS和伽利略频带的频率范围并输出经下变频的IF信号(32)。 固定频率本地振荡器信号(34)被耦合到RF混频器(12)。 至少一个IF处理器14进一步将经下变频的IF信号(32)下变频为至少一个基带信号(22)。 至少一个IF处理器(14)可以针对不同的频带重新配置。

    AUTOMATIC FREQUENCY CONTROL PROCESSING IN MULTI-CHANNEL RECEIVERS
    22.
    发明申请
    AUTOMATIC FREQUENCY CONTROL PROCESSING IN MULTI-CHANNEL RECEIVERS 审中-公开
    多通道接收机的自动频率控制处理

    公开(公告)号:WO2004095718A3

    公开(公告)日:2004-12-29

    申请号:PCT/US2004012217

    申请日:2004-04-20

    Abstract: A multiple channel receiver (200) includes a communications receiver synthesizer (204) and at least one numerically controlled oscillator (NCO) (406) that produce local oscillator signals that are derived from a common reference oscillator (202). A DSP (212) and CPU (214) perform automatic frequency control (AFC) by adjustment of the reference oscillator (202) based upon a signal received by a receive channel using the local oscillator signal produced by the communications receiver synthesizer (204). The CPU (214) also provides a synchronous indication of adjustments to the reference oscillator (202) to control circuitry for the at least one NCO (406) so that the configuration of the NCO (406) can be altered so as to maintain a substantially constant frequency output during the adjustment of the reference oscillator (202).

    Abstract translation: 多通道接收器(200)包括通信接收机合成器(204)和产生从公共参考振荡器(202)导出的本地振荡器信号的至少一个数控振荡器(NCO)(406)。 DSP(212)和CPU(214)通过使用由通信接收机合成器(204)产生的本地振荡器信号由接收信道接收的信号来调整参考振荡器(202)来执行自动频率控制(AFC)。 CPU(214)还向参考振荡器(202)提供对于至少一个NCO(406)的控制电路的调整的同步指示,使得可以改变NCO(406)的配置,以便保持基本上 在调整参考振荡器(202)期间的恒定频率输出。

    SATELLITE POSITIONING SYSTEM RECEIVERS AND METHODS
    23.
    发明申请
    SATELLITE POSITIONING SYSTEM RECEIVERS AND METHODS 审中-公开
    卫星定位系统接收机及方法

    公开(公告)号:WO2005033729A2

    公开(公告)日:2005-04-14

    申请号:PCT/US2004017294

    申请日:2004-06-02

    CPC classification number: G01S19/34

    Abstract: A method in a satellite positioning system receiver having stored almanac data including determining information for a satellite using ephemeris data (710), determining information for the same satellite using the stored almanac data (722), determining an error between the satellite information determined from the ephemeris data and the satellite information determined from the stored almanac data (730), and updating the stored almanac data based upon the error (734).

    Abstract translation: 一种具有存储年历数据的卫星定位系统接收机中的方法,包括使用星历数据确定卫星的信息(710),使用所存储的年历数据确定相同卫星的信息(722),确定从所述漫游数据确定的卫星信息之间的误差 星历数据和从存储年历数据确定的卫星信息(730),以及基于错误更新存储的历书数据(734)。

    MOBILE WIRELESS COMMUNICATION DEVICES FOR RECEIVING SPREAD SPECTRUM SIGNALS AND METHODS THEREFOR
    24.
    发明申请
    MOBILE WIRELESS COMMUNICATION DEVICES FOR RECEIVING SPREAD SPECTRUM SIGNALS AND METHODS THEREFOR 审中-公开
    用于接收传播频谱信号的移动无线通信设备及其方法

    公开(公告)号:WO02088768A2

    公开(公告)日:2002-11-07

    申请号:PCT/US0210181

    申请日:2002-03-29

    Applicant: MOTOROLA INC

    Inventor: KING THOMAS M

    CPC classification number: G01S19/02 G04R20/06

    Abstract: A mobile wireless communication device for extracting time from a spread spectrum signal including a repeating short chip code and a repeating long chip code, a ratio of the long and short chip is a non-integer having a remainder bit that accumulates over successive intervals of the chip codes. The device includes a receiver for receiving (710) the spread spectrum signal, means for determining corresponding bit numbers (720) of the long and short chip codes at a particular time, means for determining a number of accumulated remainder bits (730) as a function of the bit numbers of the long and short chip codes, and means for determining time (740) as a function of the number of accumulated remainder bits.

    Abstract translation: 一种用于从包括重复的短码片码和重复长码片码的扩频信号中提取时间的移动无线通信装置,长码片和短码片的比例是具有在该码片的连续间隔上累积的剩余比特的非整数 芯片代码。 该设备包括用于接收(710)扩展频谱信号的接收机,用于在特定时间确定长和短码片代码的对应比特数(720)的装置,用于确定累积余数比特数(730)为 长芯片代码和短芯片代码的位数的功能,以及用于根据累积的剩余比特数确定时间(740)的装置。

    RECONFIGURABLE DOWNCONVERTER FOR A MULTI-BAND POSITIONING RECEIVER
    25.
    发明申请
    RECONFIGURABLE DOWNCONVERTER FOR A MULTI-BAND POSITIONING RECEIVER 审中-公开
    用于多带定位接收器的可重新配置的DONNCONVERTER

    公开(公告)号:WO2006086118B1

    公开(公告)日:2007-11-15

    申请号:PCT/US2006001454

    申请日:2006-01-13

    CPC classification number: G01S19/32 G01S19/33 G01S19/36

    Abstract: A reconfigurable downconverter (10) for a multi-band positioning receiver is operable with an RF synthesizer (18) with fixed output frequency, and a fixed wideband RF input (28). The downconverter (10) includes an RF mixer (12) operable to accept a range of frequencies that encompass the GPS and Galileo frequency bands and to output a downconverted IF signal (32). A fixed frequency local oscillator signal (34) is coupled to the RF mixer (12). At least one IF processor 14 further downconverts the downconverted IF signal (32) to at least one baseband signal (22). At least one of the IF processors (14) is reconfigurable for different frequency bands.

    Abstract translation: 用于多频带定位接收机的可重构下变频器(10)可与具有固定输出频率的RF合成器(18)和固定宽带RF输入(28)一起操作。 下变频器(10)包括RF混频器(12),其可操作以接受包含GPS和伽利略频带的一系列频率并输出下变频的IF信号(32)。 固定频率本地振荡器信号(34)耦合到RF混频器(12)。 至少一个IF处理器14进一步将经下变频的IF信号(32)下变频至至少一个基带信号(22)。 IF处理器(14)中的至少一个可重新配置用于不同的频带。

    METHOD AND APPARATUS FOR INITIALIZING AN APPROXIMATE POSITION IN A GPS RECEIVER
    26.
    发明申请
    METHOD AND APPARATUS FOR INITIALIZING AN APPROXIMATE POSITION IN A GPS RECEIVER 审中-公开
    用于初始化GPS接收机中的近似位置的方法和装置

    公开(公告)号:WO2005025075A3

    公开(公告)日:2006-02-16

    申请号:PCT/US2004026129

    申请日:2004-08-12

    Inventor: KING THOMAS M

    CPC classification number: G01S5/0063 G01S19/25 G01S19/42

    Abstract: A method (200, 600) and an apparatus (700) for a wireless portable communication device (102) for determining coarse position information are provided. The wireless portable communication device (102) receives information about a plurality of visible satellites (106, 108, 110), and determines a coarse position of the wireless portable communication device (102) and uncertainty parameters expected at the coarse position, using the determined coarse position and uncertainties to acquire satellites.

    Abstract translation: 提供了一种用于确定粗略位置信息的无线便携式通信设备(102)的方法(200,600)和装置(700)。 无线便携式通信设备(102)接收关于多个可见卫星(106,108,110)的信息,并且使用所确定的无线便携式通信设备(102)和粗略位置确定粗略位置的粗略位置 粗略的位置和不确定性来获取卫星。

    30.
    发明专利
    未知

    公开(公告)号:DE602004019644D1

    公开(公告)日:2009-04-09

    申请号:DE602004019644

    申请日:2004-05-04

    Applicant: MOTOROLA INC

    Abstract: A method for eliminating or reducing interference in a receiver, for example, interference in a satellite positioning system receiver caused by a co-located TDMA transmitter, including detecting (210) the presence of a jamming signal, generating a synchronous blanking signal (220), and reducing the jamming signal by blanking (230) the receiver with a blanking signal. In one embodiment, the jamming signal is detected in the receiver, for example, at a correlator output of a satellite positioning system receiver.

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