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    • 3. 发明授权
    • Carrier derived frequency stabilizer for a radio communication
transmitter
    • 用于无线电通信发射机的载波导频稳定器
    • US5542113A
    • 1996-07-30
    • US300891
    • 1994-09-06
    • Steven J. FinkPeter Nanni
    • Steven J. FinkPeter Nanni
    • H01Q1/12H01Q3/42H03J7/06H03L1/00H01Q11/12H03L7/00
    • H01Q1/1257H01Q3/42H03J7/065H03L1/00
    • A method and apparatus in a radio communication transmitter (600) stabilizes a carrier frequency locked to a reference oscillator (102). The reference oscillator (102) is controlled by a control signal and generates a first signal at a reference frequency. The first signal is coupled to a frequency multiplier (212) for multiplying the reference frequency by a predetermined factor to generate a second signal at the carrier frequency. Cycles of the carrier frequency are counted (508, 514) during a predetermined interval to determine (516, 518) a measured cycle count. The measured cycle count is compared (520) with an expected cycle count corresponding to a predetermined carrier frequency to determine a drift error. From the drift error a control signal adjustment required to correct the drift error is computed (522). The control signal of the reference oscillator (102) is adjusted (524) by the control signal adjustment to correct the drift error.
    • 无线电通信发射机(600)中的方法和装置使锁定到参考振荡器(102)的载波频率稳定。 参考振荡器(102)由控制信号控制,并以参考频率产生第一信号。 第一信号耦合到倍频器(212),用于将参考频率乘以预定因子以产生载波频率处的第二信号。 在预定间隔期间对载波频率的周期进行计数(508,514),以确定(516,518)测量的周期数。 将测量的循环计数与520的预期周期数进行比较(520),以确定漂移误差。 根据漂移误差计算校正漂移误差所需的控制信号调整(522)。 通过控制信号调整来调整参考振荡器(102)的控制信号(524)以校正漂移误差。
    • 4. 发明授权
    • Frequency agile method for transmitting multi-level data
    • 用于传输多级数据的频率捷变方法
    • US5323125A
    • 1994-06-21
    • US31786
    • 1993-03-15
    • Bradley M. HibenPeter Nanni
    • Bradley M. HibenPeter Nanni
    • H04L27/12H03C3/00H03L7/16
    • H04L27/12H04L27/106
    • A data transmitter (100) operating at a transmit frequency provides a modulated data signal (114) by adjusting a reference frequency signal (108). The method of modulating an N-level data signal (102) inputted to the transmitter (100) provides for inputting, to a signal processor (201), a frequency deviation value. Using the frequency deviation value, the signal processor (201) then determines a maximum rate of enabling the frequency adjustment. Further, a deviation ratio corresponding to one of the N-levels is determined, and an increment value is then calculated (302) using this deviation ratio. Lastly, the frequency adjustment is enabled (312, 320) using the calculated increment value.
    • 以发射频率工作的数据发射机(100)通过调整参考频率信号(108)来提供调制数据信号(114)。 调制输入到发送器(100)的N电平数据信号(102)的方法提供了向信号处理器(201)输入频率偏差值。 使用频率偏差值,信号处理器(201)然后确定启用频率调整的最大速率。 此外,确定对应于N级中的一个的偏差比,然后使用该偏差比来计算增量值(302)。 最后,使用计算的增量值启用频率调整(312,320)。
    • 5. 发明授权
    • Transmitter circuit and method for modulation distortion compensation
    • 发射机电路和调制失真补偿方法
    • US07116951B2
    • 2006-10-03
    • US10737473
    • 2003-12-16
    • Thomas D. NagodePeter NanniLouis M. NigraGreg R. BlackKeith Andrew Tilley
    • Thomas D. NagodePeter NanniLouis M. NigraGreg R. BlackKeith Andrew Tilley
    • H04B1/04
    • H04B1/04H03C1/06H03C3/0975H03F1/3223H03F1/34H03F3/24H03F2200/102H03F2200/105H03F2201/3221H03F2201/3227H04B2001/0416H04B2001/0433H04B2001/0441
    • A transmitter circuit (200, 400, 510) and method reduces amplitude modulation distortion in an amplifier (210). The transmitter circuit (200, 400, 510) includes a power control error data generator (230), a feedforward predistortion data generator (240), feedforward adder logic (250) and the amplifier (210). The power control error data generator (230) receives amplitude modulation data (252) and an RF coupled output signal (254) and, in response, produces power control error data (256). The feedforward predistortion data generator (240) receives the amplitude modulation data (252) and, in response, produces feedforward predistortion data (258). The feedforward adder logic (250) receives the power control error data (256) and the feedforward predistortion data (258) and, in response, produces power control data (260). The amplifier (210) receives the power control data (260) and an RF input signal (261) and, in response, produces an RF output signal (262), such that the power control data (260) reduces amplitude modulation distortion in the RF output signal (262).
    • 发射机电路(200,400,510)和方法减小放大器(210)中的调幅失真。 发射机电路(200,400,510)包括功率控制误差数据发生器(230),前馈预失真数据生成器(240),前馈加法器逻辑(250)和放大器(210)。 功率控制误差数据发生器(230)接收幅度调制数据(252)和RF耦合的输出信号(254),作为响应,产生功率控制误差数据(256)。 前馈预失真数据生成器(240)接收幅度调制数据(252),作为响应,产生前馈预失真数据(258)。 前馈加法器逻辑(250)接收功率控制误差数据(256)和前馈预失真数据(258),作为响应,产生功率控制数据(260)。 放大器(210)接收功率控制数据(260)和RF输入信号(261),并且作为响应产生RF输出信号(262),使得功率控制数据(260)降低功率控制数据 RF输出信号(262)。
    • 6. 发明授权
    • Method and apparatus for multiple band transmission
    • 用于多频带传输的方法和装置
    • US06389269B1
    • 2002-05-14
    • US09594395
    • 2000-06-15
    • Peter NanniLi XiangEric Midlock
    • Peter NanniLi XiangEric Midlock
    • H04B102
    • H04B1/0458H04B1/005H04B1/006H04B1/406
    • A method and apparatus for transmitting in multiple radio frequency (RF) bands from a single device is described. The device includes a transmitter (128) for transmitting RF communication signals. The transmitter is comprised of a power amplifier (200) for amplifying the RF communication signal in either a first RF band or a second RF band. The transmitter has a complex transformer (202) for partially transforming the impedance of the RF communication signal in a first RF band, and completely transforming the impedance of the RF communication signal to the characteristic impedance in a second RF band. The transmitter also includes a first path (204) for transmitting the RF communication signal in the first RF band and a second path (206) for transmitting the RF communication signal in the second RF band. The first path completes the impedance transformation of the RF communication signal when the system is operating in the first RF band and the second path operates at the characteristic impedance when the system is operating in the second RF band.
    • 描述了用于从单个设备在多个射频(RF)频带中发射的方法和装置。 该设备包括用于发射RF通信信号的发射机(128)。 发射机包括用于在第一RF频带或第二RF频带中放大RF通信信号的功率放大器(200)。 发射机具有用于部分地变换第一RF频带中的RF通信信号的阻抗的复合变压器(202),并且将RF通信信号的阻抗完全变换为第二RF频带中的特性阻抗。 发射机还包括用于在第一RF频带中发送RF通信信号的第一路径(204)和用于在第二RF频带中发送RF通信信号的第二路径(206)。 当系统在第一RF频带中操作时,第一路径完成RF通信信号的阻抗变换,并且当系统在第二RF频带中操作时,第二路径以特性阻抗工作。
    • 7. 发明授权
    • Method and apparatus for controlling frequency deviation of a portable
transceiver
    • 用于控制便携式收发器的频率偏差的方法和装置
    • US5517491A
    • 1996-05-14
    • US433188
    • 1995-05-03
    • Peter NanniKevin Freisen
    • Peter NanniKevin Freisen
    • H04B17/00H04B7/26
    • H04B17/104H04B17/11H04B17/12H04B17/14
    • A method and apparatus to control frequency deviation of a portable transceiver (PT) (122) utilizing a time-division-duplex (TDD) protocol for communicating with a base transceiver (116). The base transceiver (116) transmits (708) a first signal having first deviation levels (706). The PT (122) receives (802) the first signal, measures (808, 810, 824) it to derive estimates of the first deviation levels, and stores (826) the estimates in a memory (322). The PT (122) generates (828) a second signal having second deviation levels (830) controlled by control signal values (323), samples (832) the second signal to derive a second received signal, and appraises (902) the second received signal to derive estimates of the second deviation levels (830). The PT (122) compares (906) corresponding estimates of the first and second frequency deviation levels (830) to derive adjusted control signal values (908) for controlling the second deviation levels (830) to approximate the first deviation levels (706), and thereafter controls (914) the second deviation levels (830) in accordance with the adjusted control signal values (908).
    • 一种利用时分双工(TDD)协议来控制便携式收发器(PT)(122)的频偏的方法和装置,用于与基站收发信机(116)进行通信。 基站收发器(116)发送(708)具有第一偏差电平(706)的第一信号。 PT(122)接收(802)第一信号,测量(808,810,824)以导出第一偏差水平的估计,并将估计存储(826)到存储器(322)中。 PT(122)产生(828)具有由控制信号值(323)控制的第二偏移电平(830)的第二信号,第二信号的采样(832)以导出第二接收信号,并且评估(902)第二接收信号 信号以导出第二偏差水平的估计(830)。 PT(122)比较(906)第一和第二频率偏差水平(830)的相应估计值,以导出用于控制第二偏差水平(830)以近似第一偏差水平(706)的调整的控制信号值(908) 然后根据调整后的控制信号值(908)控制(914)第二偏差电平(830)。
    • 8. 发明授权
    • Apparatus for redistributing radio frequency currents and corresponding near field effects
    • 用于重新分配射频电流和相应的近场效应的装置
    • US07953432B2
    • 2011-05-31
    • US11559451
    • 2006-11-14
    • Arthur C. LeyhPeter NanniWilliam E. Wangard
    • Arthur C. LeyhPeter NanniWilliam E. Wangard
    • H04M1/00H01Q11/12
    • H04B1/3838
    • The present invention provides a chassis for a radio frequency communication device. The chassis includes an electrically conductive chassis portion having a length and a width, where the electrically conductive chassis portion has a line of symmetry substantially centered widthwise and running along the length of the electrically conductive chassis portion. The chassis further includes an electrically conductive bridge, which has a first end coupled to the electrically conductive chassis portion for enabling a current to pass therebetween. The chassis still further includes a path conductor having a first end and a second end, and a length therebetween. The first end of the path conductor is coupled to the electrically conductive chassis portion at an asymmetrical location relative to the line of symmetry. The electrically conductive chassis portion includes a current path inhibitor, which biases current present in the electrically conductive chassis portion toward the path conductor, where the location at which the one end of the path conductor is coupled to the electrically conductive chassis portion is positioned between the current path inhibitor and the first end of the electrically conductive bridge.
    • 本发明提供一种用于射频通信设备的机箱。 底盘包括具有长度和宽度的导电底盘部分,其中导电底盘部分具有基本上沿宽度方向中心并且沿着导电底架部分的长度延伸的对称线。 底盘还包括导电桥,其具有联接到导电底座部分的第一端,用于使电流在其间通过。 底盘还包括具有第一端和第二端以及它们之间的长度的路径导体。 路径导体的第一端在相对于对称线的不对称位置耦合到导电底座部分。 导电底盘部分包括电流路径抑制器,其将存在于导电底座部分中的电流偏向路径导体,其中路径导体的一端耦合到导电底架部分的位置位于 电流路径抑制器和导电桥的第一端。
    • 10. 发明申请
    • APPARATUS FOR REDISTRIBUTING RADIO FREQUENCY CURRENTS AND CORRESPONDING NEAR FIELD EFFECTS
    • 用于重新分配无线电频率和对应于近场效应的装置
    • US20080113694A1
    • 2008-05-15
    • US11559451
    • 2006-11-14
    • Arthur C. LeyhPeter NanniWilliam E. Wangard
    • Arthur C. LeyhPeter NanniWilliam E. Wangard
    • H04M1/00
    • H04B1/3838
    • The present invention provides a chassis for a radio frequency communication device. The chassis includes an electrically conductive chassis portion having a length and a width, where the electrically conductive chassis portion has a line of symmetry substantially centered widthwise and running along the length of the electrically conductive chassis portion. The chassis further includes an electrically conductive bridge, which has a first end coupled to the electrically conductive chassis portion for enabling a current to pass therebetween. The chassis still further includes a path conductor having a first end and a second end, and a length therebetween. The first end of the path conductor is coupled to the electrically conductive chassis portion at an asymmetrical location relative to the line of symmetry. The electrically conductive chassis portion includes a current path inhibitor, which biases current present in the electrically conductive chassis portion toward the path conductor, where the location at which the one end of the path conductor is coupled to the electrically conductive chassis portion is positioned between the current path inhibitor and the first end of the electrically conductive bridge.
    • 本发明提供一种用于射频通信设备的机箱。 底盘包括具有长度和宽度的导电底盘部分,其中导电底盘部分具有基本上沿宽度方向中心并且沿着导电底架部分的长度延伸的对称线。 底盘还包括导电桥,其具有联接到导电底座部分的第一端,用于使电流在其间通过。 底盘还包括具有第一端和第二端以及它们之间的长度的路径导体。 路径导体的第一端在相对于对称线的不对称位置耦合到导电底座部分。 导电底盘部分包括电流路径抑制器,其将存在于导电底座部分中的电流偏向路径导体,其中路径导体的一端耦合到导电底架部分的位置位于 电流路径抑制器和导电桥的第一端。