Radio transceiver architectures and methods

    公开(公告)号:AU2003256687A8

    公开(公告)日:2004-02-16

    申请号:AU2003256687

    申请日:2003-07-22

    Applicant: MOTOROLA INC

    Abstract: A radio communications device 100 including a processor 120 having a digital signal processor (DSP) coupled to a transceiver 110. The transceiver includes a digital-to-phase synthesizer having one or more independently variable frequency or phase signal outputs coupled to a transmitter and/or to a receiver. The variable frequency and phase outputs of the digital-to phase synthesizer are mixed with corresponding received signals and are capable of frequency or phase modulating information signals for transmission. Amplitude modulated signals may be provided through polar modulation by combining synthesizer outputs at a summer.

    3.
    发明专利
    未知

    公开(公告)号:DE69226952T2

    公开(公告)日:1999-04-29

    申请号:DE69226952

    申请日:1992-06-02

    Applicant: MOTOROLA INC

    Abstract: A communication device 200 capable of operating in a communication system 100 having a control system which generates information signals with redundant information is disclosed. The communication device comprises: a receiver 214 for receiving the information signals; a circuit which can determine the signal quality of the received information signals 234; and a controller 226 which decodes the received information signals, and further compares the signal quality of the information signals with a predetermined value, and decides if the received signal quality is at least equal to the predetermined value in order to only decode a portion of the information signal. Upon the communication device decoding a portion of the information signal, the communication device 200 is placed in a battery saving mode in order to conserve battery life.

    4.
    发明专利
    未知

    公开(公告)号:DE69226952D1

    公开(公告)日:1998-10-15

    申请号:DE69226952

    申请日:1992-06-02

    Applicant: MOTOROLA INC

    Abstract: A communication device 200 capable of operating in a communication system 100 having a control system which generates information signals with redundant information is disclosed. The communication device comprises: a receiver 214 for receiving the information signals; a circuit which can determine the signal quality of the received information signals 234; and a controller 226 which decodes the received information signals, and further compares the signal quality of the information signals with a predetermined value, and decides if the received signal quality is at least equal to the predetermined value in order to only decode a portion of the information signal. Upon the communication device decoding a portion of the information signal, the communication device 200 is placed in a battery saving mode in order to conserve battery life.

    RADIO TRANSCEIVER ARCHITECTURES AND METHODS

    公开(公告)号:AU2003256687A1

    公开(公告)日:2004-02-16

    申请号:AU2003256687

    申请日:2003-07-22

    Applicant: MOTOROLA INC

    Abstract: A radio communications device 100 including a processor 120 having a digital signal processor (DSP) coupled to a transceiver 110. The transceiver includes a digital-to-phase synthesizer having one or more independently variable frequency or phase signal outputs coupled to a transmitter and/or to a receiver. The variable frequency and phase outputs of the digital-to phase synthesizer are mixed with corresponding received signals and are capable of frequency or phase modulating information signals for transmission. Amplitude modulated signals may be provided through polar modulation by combining synthesizer outputs at a summer.

    Apparatus and method for generating accurate quadrature over a frequency range

    公开(公告)号:AU3668301A

    公开(公告)日:2001-09-03

    申请号:AU3668301

    申请日:2001-02-05

    Applicant: MOTOROLA INC

    Abstract: The invention produces an accurate quadrature relationship for a range of frequencies using passive components in the primary quadrature splitting circuits. A reference oscillator (202) generates a reference signal which is fed to a conventional passive quadrature splitter circuit (204). However, since the reference circuit provides signals over a range of frequencies, the output signals of the passive quadrature splitter may not have an accurate quadrature relationship. The output signals of the passive quadrature splitter are then equalized in magnitude, and the sum and difference of the signals are produced, which will be in an accurate quadrature relationship.

    RADIO TRANSCEIVER ARCHITECTURES AND METHODS
    8.
    发明申请
    RADIO TRANSCEIVER ARCHITECTURES AND METHODS 审中-公开
    无线电收发机结构和方法

    公开(公告)号:WO2004012343A3

    公开(公告)日:2004-05-06

    申请号:PCT/US0323007

    申请日:2003-07-22

    Applicant: MOTOROLA INC

    CPC classification number: H04B1/001 H04B1/0003 H04B1/406

    Abstract: A radio communications device 100 including a processor 120 having a digital signal processor (DSP) coupled to a transceiver 110. The transceiver includes a digital-to-phase synthesizer having one or more independently variable frequency or phase signal outputs coupled to a transmitter and/or to a receiver. The variable frequency and phase outputs of the digital-to phase synthesizer are mixed with corresponding received signals and are capable of frequency or phase modulating information signals for transmission. Amplitude modulated signals may be provided through polar modulation by combining synthesizer outputs at a summer.

    Abstract translation: 包括具有耦合到收发机110的数字信号处理器(DSP)的处理器120的无线电通信设备100.该收发机包括数字 - 相位合成器,其具有耦合到发射机的一个或多个独立可变频率或相位信号输出和/ 或接收器。 数字 - 相位合成器的可变频率和相位输出与相应的接收信号混合,并且能够对用于传输的信息信号进行频率或相位调制。 幅度调制信号可以通过在夏季组合合成器输出通过极坐标调制来提供。

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