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    Radio transmitter
    1.
    发明授权
    Radio transmitter 有权
    无线电发射机

    公开(公告)号：US08320845B2

    公开(公告)日：2012-11-27

    申请号：US12168357

    申请日：2008-07-07

    Applicant: Robert Bristow

    Inventor： Robert Bristow

    IPC: H04B1/04 ,  H01Q11/12

    CPC classification number: H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45366 ,  H04B1/0475 ,  H04B2001/0491

    Abstract: A radio transmitter includes a transmitter circuit which produces a signal at a first frequency, and has digital divider circuitry, for dividing the first frequency to produce a signal at a second frequency. The noise performance of the digital divider is adjusted, depending upon the transmitter output power. Specifically, the digital divider is operated with a relatively good noise performance when the gain of the power amplifier is high, and is operated with a worse noise performance at low output powers. This can ensure that a specified noise requirement is met, without excessively increasing the power consumption or the size of the device.

    Abstract translation: 无线电发射机包括发射电路，其以第一频率产生信号，并具有数字分频器电路，用于分割第一频率以产生第二频率的信号。 数字分频器的噪声性能根据发射机输出功率进行调整。 具体来说，当功率放大器的增益高时，数字分频器的噪声性能相对较好，在低输出功率下以较差的噪声性能运行。 这可以确保满足特定的噪声要求，而不会过度增加功耗或设备的尺寸。

    Radio transmitter
    2.
    发明申请
    Radio transmitter 有权
    无线电发射机

    公开(公告)号：US20070037533A1

    公开(公告)日：2007-02-15

    申请号：US10548206

    申请日：2004-03-17

    Applicant: Robert Bristow

    Inventor： Robert Bristow

    IPC: H04B1/04 ,  H01Q11/12

    CPC classification number: H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45366 ,  H04B1/0475 ,  H04B2001/0491

    Abstract: A radio transmitter includes a transmitter circuit which produces a signal at a first frequency, and has digital divider circuitry, for dividing the first frequency to produce a signal at a second frequency. The noise performance of the digital divider is adjusted, depending upon the transmitter output power. Specifically, the digital divider is operated with a relatively good noise performance when the gain of the power amplifier is high, and is operated with a worse noise performance at low output powers. This can ensure that a specified noise requirement is met, without excessively increasing the power consumption or the size of the device.

    Abstract translation: 无线电发射机包括发射电路，其以第一频率产生信号，并具有数字分频器电路，用于分割第一频率以产生第二频率的信号。 数字分频器的噪声性能根据发射机输出功率进行调整。 具体来说，当功率放大器的增益高时，数字分频器的噪声性能相对较好，在低输出功率下以较差的噪声性能运行。 这可以确保满足特定的噪声要求，而不会过度增加功耗或设备的尺寸。

    Method and apparatus for quadrature modulation techical field
    3.
    发明申请
    Method and apparatus for quadrature modulation techical field 审中-公开
    正交调制技术领域的方法和装置

    公开(公告)号：US20060057993A1

    公开(公告)日：2006-03-16

    申请号：US10538705

    申请日：2003-12-15

    Applicant: Robert Bristow

    Inventor： Robert Bristow

    IPC: H04B7/00

    CPC classification number: H03C3/40 ,  H04L2027/0016 ,  H04L2027/0018

    Abstract: A method and apparatus (200) for modulating I and Q signals to compensate for phase error between the quadrature outputs of a local oscillator (126) of a quadrature modulator(s). The error in the quadrature outputs of the local oscillator is effectively compensated by pre-processing (201) incoming I(t) and Q(t) baseband signals to generate composite signals adding (102) and subtracting (108) scaled (202, 210, 204, 214) I(t) and Q(t). These composite signals form the input (19, 21) of quadrature modulator(s), the method comprising the steps of: applying a first scaling factor to an input I signal; applying a second scaling factor to an input Q signal; adding the scale I and Q signals; subtracting the scale I and Q signals; and quadrature modulating the added and subtracted signals.

    Abstract translation: 一种用于调制I和Q信号以补偿正交调制器的本地振荡器（126）的正交输出之间的相位误差的方法和装置（200）。 通过预处理（201）输入I（t）和Q（t）基带信号来有效地补偿本地振荡器的正交输出中的误差，以产生加法（102）和减法（108）缩放的复合信号（202,210 ，204,214）I（t）和Q（t）。 这些复合信号形成正交调制器的输入端（19,21），该方法包括以下步骤：将第一比例因子应用于输入I信号; 对输入Q信号应用第二比例因子; 增加比例I和Q信号; 减去比例I和Q信号; 并对相加和相减的信号进行正交调制。

    RADIO TRANSMITTER
    4.
    发明申请
    RADIO TRANSMITTER 有权
    无线电发射机

    公开(公告)号：US20090088099A1

    公开(公告)日：2009-04-02

    申请号：US12168357

    申请日：2008-07-07

    Applicant: Robert Bristow

    Inventor： Robert Bristow

    IPC: H04B1/04 ,  H01Q11/12

    CPC classification number: H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45366 ,  H04B1/0475 ,  H04B2001/0491

    Abstract: A radio transmitter includes a transmitter circuit which produces a signal at a first frequency, and has digital divider circuitry, for dividing the first frequency to produce a signal at a second frequency. The noise performance of the digital divider is adjusted, depending upon the transmitter output power. Specifically, the digital divider is operated with a relatively good noise performance when the gain of the power amplifier is high, and is operated with a worse noise performance at low output powers. This can ensure that a specified noise requirement is met, without excessively increasing the power consumption or the size of the device.

    Abstract translation: 无线电发射机包括发射电路，其以第一频率产生信号，并具有数字分频器电路，用于分割第一频率以产生第二频率的信号。 数字分频器的噪声性能根据发射机输出功率进行调整。 具体来说，当功率放大器的增益高时，数字分频器的噪声性能相对较好，在低输出功率下以较差的噪声性能运行。 这可以确保满足特定的噪声要求，而不会过度增加功耗或设备的尺寸。

    Radio transmitter
    5.
    发明授权
    Radio transmitter 有权
    无线电发射机

    公开(公告)号：US07412216B2

    公开(公告)日：2008-08-12

    申请号：US10548206

    申请日：2004-03-17

    Applicant: Robert Bristow

    Inventor： Robert Bristow

    IPC: H01Q11/12 ,  H04B1/04

    CPC classification number: H03F1/02 ,  H03F1/26 ,  H03F3/24 ,  H03F3/45085 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2203/45366 ,  H04B1/0475 ,  H04B2001/0491

    Abstract: A radio transmitter includes a transmitter circuit which produces a signal at a first frequency, and has digital divider circuitry, for dividing the first frequency to produce a signal at a second frequency. The noise performance of the digital divider is adjusted, depending upon the transmitter output power. Specifically, the digital divider is operated with a relatively good noise performance when the gain of the power amplifier is high, and is operated with a worse noise performance at low output powers. This can ensure that a specified noise requirement is met, without excessively increasing the power consumption or the size of the device.

    Abstract translation: 无线电发射机包括发射电路，其以第一频率产生信号，并具有数字分频器电路，用于分割第一频率以产生第二频率的信号。 数字分频器的噪声性能根据发射机输出功率进行调整。 具体来说，当功率放大器的增益高时，数字分频器的噪声性能相对较好，在低输出功率下以较差的噪声性能运行。 这可以确保满足特定的噪声要求，而不会过度增加功耗或设备的尺寸。

    Dual-radio communication apparatus, and an operating method thereof
    6.
    发明授权
    Dual-radio communication apparatus, and an operating method thereof 失效
    双无线电通信装置及其操作方法

    公开(公告)号：US06975667B2

    公开(公告)日：2005-12-13

    申请号：US09859704

    申请日：2001-05-17

    Applicant: Sven Mattisson ,  Jacobus Haartsen ,  Robert Bristow

    Inventor： Sven Mattisson ,  Jacobus Haartsen ,  Robert Bristow

    IPC: H04B1/38 ,  H04B1/40 ,  H04B7/185 ,  H04L12/56 ,  H04W84/06 ,  H04W84/18 ,  H04W88/06 ,  H04B1/69 ,  H04B1/713

    CPC classification number: H04W88/06 ,  H04B1/005 ,  H04B1/3805 ,  H04B1/406 ,  H04B7/18563 ,  H04W84/06 ,  H04W84/18

    Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.

    Abstract translation: 双无线电通信装置具有用于第一频带的第一无线电装置，诸如蓝牙无线电装置，以及第二无线电装置，例如全球星卫星无线电装置，用于在第二频带中使用的第二无线电装置 到第一个频带。 通信设备还具有耦合到第一和第二无线电设备的控制器。 第一无线电设备可以包括跳频扩频发射机。 此外，第一无线电设备具有采用第一频率范围的第一操作模式。 第一无线电设备还具有采用小于第一频率范围的第二频率范围的第二操作模式。 控制器适于将第一无线电设备设置在其第二操作模式中，当第二无线电设备正在运行时，否则将第一无线电设备设置为其第一操作模式。

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