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    • 3. 发明授权
    • Electronic devices with calibrated radio frequency communications circuitry
    • 具有校准射频通信电路的电子设备
    • US08331883B2
    • 2012-12-11
    • US12262121
    • 2008-10-30
    • Robert Sorensen
    • Robert Sorensen
    • H01Q11/12H04B1/04
    • H04B1/1607
    • Circuitry for portable electronic devices is provided. The circuitry may include wireless communications circuitry and storage and processing circuitry. The wireless communications circuitry may include an antenna and a radio-frequency power amplifier with an adjustable gain mode. The radio-frequency power amplifier may amplify radio-frequency signals to a given output power. The circuitry may include an adjustable power supply circuit that supplies an adjustable power supply voltage to the power amplifier circuitry. The circuitry may also include a transceiver that produce radio-frequency signals at a specified input power to the power amplifier circuitry. The storage and processing circuitry may be used in storing calibration data. The calibration data may specify adjustments to be made to the input power to the radio-frequency power amplifier, the gain mode setting of the power amplifier, and the power supply voltage for the power amplifier to optimize performance while minimizing power consumption.
    • 提供便携式电子设备的电路。 电路可以包括无线通信电路和存储和处理电路。 无线通信电路可以包括具有可调增益模式的天线和射频功率放大器。 射频功率放大器可以将射频信号放大到给定的输出功率。 电路可以包括可调电源电路,其向功率放大器电路提供可调节的电源电压。 电路还可以包括以功率放大器电路的指定输入功率产生射频信号的收发器。 存储和处理电路可用于存储校准数据。 校准数据可以指定对射频功率放大器的输入功率的调整,功率放大器的增益模式设置以及功率放大器的电源电压,以在最小化功耗的同时优化性能。
    • 4. 发明申请
    • WIRELESS TRANSMITTER CALIBRATION USING DEVICE RECEIVER
    • 使用设备接收器的无线发射机校准
    • US20100144286A1
    • 2010-06-10
    • US12330497
    • 2008-12-08
    • Robert Sorensen
    • Robert Sorensen
    • H04B1/40
    • H04B1/0475H03F1/0261H03F3/195H03F3/245H03F2200/105H03F2200/204H03F2200/321H03F2200/387H03F2200/408H03F2200/451H04B17/21
    • Portable electronic devices are provided that contain radio-frequency transceiver circuitry. Power amplifier circuitry may amplify transmitted radio-frequency signals from the radio-frequency transceiver circuitry. The power amplifier circuitry may be powered with a power supply voltage. The power supply voltage may be reduced to conserve power provided that requirements such as adjacent channel leakage ratio requirements are satisfied. Calibration measurements may be made to determine the extent to which power can be conserved by power supply voltage reductions. During calibration, the transceiver circuitry may transmit signals in a transmit subband. Test equipment that is external to the device may frequency shift the transmitted signals into a receive subband. The frequency-shifted signals may be fed back into the device. The transceiver circuitry in the device may make power measurements on the fed back signals. The power measurements may be used to compute adjacent channel leakage ratio values.
    • 提供了包含射频收发器电路的便携式电子设备。 功率放大器电路可以放大来自射频收发器电路的发射的射频信号。 功率放大器电路可以由电源电压供电。 如果满足诸如相邻信道泄漏比要求的要求,则可以减小电源电压以节省功率。 可以进行校准测量,以确定通过电源电压降低可以节省电力的程度。 在校准期间,收发器电路可以在发射子带中传输信号。 设备外部的测试设备可能将发送的信号频移到接收子带。 频移信号可以反馈到设备中。 设备中的收发器电路可以对反馈信号进行功率测量。 功率测量可用于计算相邻通道泄漏比值。
    • 5. 发明申请
    • ELECTRONIC DEVICES WITH CALIBRATED RADIO FREQUENCY COMMUNICATIONS CIRCUITRY
    • 具有校准无线电频率通信电路的电子设备
    • US20100112967A1
    • 2010-05-06
    • US12262121
    • 2008-10-30
    • Robert Sorensen
    • Robert Sorensen
    • H04B1/04
    • H04B1/1607
    • Circuitry for portable electronic devices is provided. The circuitry may include wireless communications circuitry and storage and processing circuitry. The wireless communications circuitry may include an antenna and a radio-frequency power amplifier with an adjustable gain mode. The radio-frequency power amplifier may amplify radio-frequency signals to a given output power. The circuitry may include an adjustable power supply circuit that supplies an adjustable power supply voltage to the power amplifier circuitry. The circuitry may also include a transceiver that produce radio-frequency signals at a specified input power to the power amplifier circuitry. The storage and processing circuitry may be used in storing calibration data. The calibration data may specify adjustments to be made to the input power to the radio-frequency power amplifier, the gain mode setting of the power amplifier, and the power supply voltage for the power amplifier to optimize performance while minimizing power consumption.
    • 提供便携式电子设备的电路。 电路可以包括无线通信电路和存储和处理电路。 无线通信电路可以包括具有可调增益模式的天线和射频功率放大器。 射频功率放大器可以将射频信号放大到给定的输出功率。 电路可以包括可调电源电路,其向功率放大器电路提供可调节的电源电压。 电路还可以包括以功率放大器电路的指定输入功率产生射频信号的收发器。 存储和处理电路可用于存储校准数据。 校准数据可以指定对射频功率放大器的输入功率的调整,功率放大器的增益模式设置以及功率放大器的电源电压,以在最小化功耗的同时优化性能。
    • 6. 发明授权
    • Pitman mower
    • 皮特曼割草机
    • US3955344A
    • 1976-05-11
    • US566878
    • 1975-04-10
    • Robert SorensenRichard A. ZablockiPaul C. Gordon
    • Robert SorensenRichard A. ZablockiPaul C. Gordon
    • A01D34/07A01D75/18A01D35/08
    • A01D34/07A01D75/185
    • A pitman mower has a hitch frame, a drag bar, a cutterbar pivotally attached to the drag bar for pivotal movement in the transverse vertical plane and a drive mechanism for the cutterbar mounted on the drag bar. A pair of fore-and-aft extending links interconnect the hitch frame and drag bar in a generally horizontal four bar parallel linkage, the left link being resilient in the transverse direction, preferably comprising a leaf spring, having one end rigidly connected to its adjacent member. The right link comprises a breakaway pull bar assembly rotatable about an axis generally longitudinal thereof and has a float spring and lifting chain connected thereto and disposed to rotate the pull bar against the load imposed thereon by a gag link connected to the pull bar away from the axis of rotation thereof and extending to the cutterbar to control its rotation about the drag bar.
    • 拖把割草机具有搭接框架,拖杆,可枢转地附接到拖杆的切割器,用于在横向垂直平面中枢转运动,以及用于安装在拖杆上的切割器的驱动机构。 一对前后延伸链条以大致水平的四杆平行连杆将挂钩框架和拖杆互相连接,左连杆在横向方向上具有弹性,优选地包括板簧,其一端刚性连接到其相邻的 会员。 右连杆包括分开的拉杆组件,其可绕其大体上纵向的轴线旋转,并且具有连接到其上的浮子弹簧和提升链,并且设置成使拉杆抵抗施加在其上的负载,该连接杆连接到拉杆远离 其旋转轴线并延伸到切割器,以控制其围绕拖杆的旋转。
    • 7. 发明申请
    • RADIO FREQUENCY COMMUNICATIONS CIRCUITRY WITH POWER SUPPLY VOLTAGE AND GAIN CONTROL
    • 无线电频率通信电路电压和增益控制
    • US20090270137A1
    • 2009-10-29
    • US12110260
    • 2008-04-25
    • Robert SorensenRonald William Dimpflmaier
    • Robert SorensenRonald William Dimpflmaier
    • H04M1/00
    • H03G3/3042H03F1/0216H03F1/0244H03F3/195H03F3/24H03F2200/387H03F2200/405H03F2200/414
    • Portable electronic devices are provided with wireless circuitry. The wireless circuitry may include one or more sets of radio-frequency power amplifiers. The radio-frequency power amplifiers are used to amplify radio-frequency signals that are transmitted by the portable electronic devices. Each power amplifier may have multiple gain mode settings. Gain stages within the power amplifiers may be selectively enabled in accordance with the gain mode settings. When a higher level of gain is required, all of the gain stages may be enabled. When a lower level of gain is required, some of the gain stages may be disabled to conserve power. An adjustable power supply may be used to provide an adjustable power supply voltage to the power amplifiers. The adjustable power supply voltage can be reduced when it is desired to minimize power consumption at a particular gain mode setting. Gain mode and power supply settings may be adjusted simultaneously.
    • 便携式电子设备配有无线电路。 无线电路可以包括一组或多组射频功率放大器。 射频功率放大器用于放大由便携式电子设备发射的射频信号。 每个功率放大器可以具有多个增益模式设置。 可以根据增益模式设置选择性地使能功率放大器内的增益级。 当需要更高级别的增益时,可以启用所有的增益级。 当需要较低的增益水平时,可以禁用一些增益级以节省功率。 可以使用可调节的电源来向功率放大器提供可调节的电源电压。 当希望在特定增益模式设置下最小化功耗时,可以减小可调电源电压。 增益模式和电源设置可能会同时进行调整。
    • 9. 发明授权
    • Radio frequency communications circuitry with power supply voltage and gain control
    • 具有电源电压和增益控制的射频通信电路
    • US08255009B2
    • 2012-08-28
    • US12110260
    • 2008-04-25
    • Robert SorensenRonald William Dimpflmaier
    • Robert SorensenRonald William Dimpflmaier
    • H04M1/00
    • H03G3/3042H03F1/0216H03F1/0244H03F3/195H03F3/24H03F2200/387H03F2200/405H03F2200/414
    • Portable electronic devices are provided with wireless circuitry. The wireless circuitry may include one or more sets of radio-frequency power amplifiers. The radio-frequency power amplifiers are used to amplify radio-frequency signals that are transmitted by the portable electronic devices. Each power amplifier may have multiple gain mode settings. Gain stages within the power amplifiers may be selectively enabled in accordance with the gain mode settings. When a higher level of gain is required, all of the gain stages may be enabled. When a lower level of gain is required, some of the gain stages may be disabled to conserve power. An adjustable power supply may be used to provide an adjustable power supply voltage to the power amplifiers. The adjustable power supply voltage can be reduced when it is desired to minimize power consumption at a particular gain mode setting. Gain mode and power supply settings may be adjusted simultaneously.
    • 便携式电子设备配有无线电路。 无线电路可以包括一组或多组射频功率放大器。 射频功率放大器用于放大由便携式电子设备发射的射频信号。 每个功率放大器可以具有多个增益模式设置。 可以根据增益模式设置选择性地使能功率放大器内的增益级。 当需要更高级别的增益时,可以启用所有的增益级。 当需要较低的增益水平时,可以禁用一些增益级以节省功率。 可以使用可调节的电源来向功率放大器提供可调节的电源电压。 当希望在特定增益模式设置下最小化功耗时,可以减小可调电源电压。 增益模式和电源设置可能会同时进行调整。
    • 10. 发明授权
    • Wireless transmitter calibration using device receiver
    • 使用设备接收器的无线发射机校准
    • US08116703B2
    • 2012-02-14
    • US12330497
    • 2008-12-08
    • Robert Sorensen
    • Robert Sorensen
    • H03C1/62
    • H04B1/0475H03F1/0261H03F3/195H03F3/245H03F2200/105H03F2200/204H03F2200/321H03F2200/387H03F2200/408H03F2200/451H04B17/21
    • Portable electronic devices are provided that contain radio-frequency transceiver circuitry. Power amplifier circuitry may amplify transmitted radio-frequency signals from the radio-frequency transceiver circuitry. The power amplifier circuitry may be powered with a power supply voltage. The power supply voltage may be reduced to conserve power provided that requirements such as adjacent channel leakage ratio requirements are satisfied. Calibration measurements may be made to determine the extent to which power can be conserved by power supply voltage reductions. During calibration, the transceiver circuitry may transmit signals in a transmit subband. Test equipment that is external to the device may frequency shift the transmitted signals into a receive subband. The frequency-shifted signals may be fed back into the device. The transceiver circuitry in the device may make power measurements on the fed back signals. The power measurements may be used to compute adjacent channel leakage ratio values.
    • 提供了包含射频收发器电路的便携式电子设备。 功率放大器电路可以放大来自射频收发器电路的发射的射频信号。 功率放大器电路可以由电源电压供电。 如果满足诸如相邻信道泄漏比要求的要求,则可以减小电源电压以节省功率。 可以进行校准测量,以确定通过电源电压降低可以节省电力的程度。 在校准期间,收发器电路可以在发射子带中传输信号。 设备外部的测试设备可能将发送的信号频移到接收子带。 频移信号可以反馈到设备中。 设备中的收发器电路可以对反馈信号进行功率测量。 功率测量可用于计算相邻通道泄漏比值。