公开(公告)号：US20060046770A1

公开(公告)日：2006-03-02

申请号：US11064701

申请日：2005-02-24

申请人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski

IPC分类号： H04M1/00

CPC分类号： H04M1/23 ,  H04B1/38 ,  H04B15/00 ,  H04B15/02 ,  H04M1/0202

摘要： A mobile wireless communications device includes a housing and circuit board carried by the housing. Radio frequency (RF) circuitry carried by the circuit board forms a transmitter and receiver. A processor is carried by the circuit board and operative with the RF circuitry. A keyboard connector is mounted on the circuit board. A plurality of Key_Out and Key_In connection lines are carried by the circuit board and connect the keyboard connector and processor. A keypad is carried by the housing and operatively connected to the keyboard connector. A filter is operative with each connection line for limiting degradation in receiver sensitivity.

摘要翻译： 移动无线通信设备包括由壳体承载的外壳和电路板。 由电路板承载的射频（RF）电路形成发射机和接收机。 处理器由电路板携带并与RF电路一起操作。 键盘连接器安装在电路板上。 多个Key_Out和Key_In连接线由电路板承载，并连接键盘连接器和处理器。 键盘由壳体承载并且可操作地连接到键盘连接器。 每个连接线都可以使用滤波器来限制接收机灵敏度的降低。

公开(公告)号：US06259416B1

公开(公告)日：2001-07-10

申请号：US09305321

申请日：1999-05-05

申请人： Yihong Qi ,  Lizhong Zhu ,  Xifan Chen ,  Wutu Wang

发明人： Yihong Qi ,  Lizhong Zhu ,  Xifan Chen ,  Wutu Wang

IPC分类号： H01Q1310

CPC分类号： H01Q21/08 ,  H01Q9/0407 ,  H01Q13/10

摘要： A wideband slot-loop antenna is described which comprises a generally planar loop element having a generally rectangular outer perimeter and a slot defining an inner perimeter, the mid portion of the slot-loop structure providing a major radiation portion of the antenna; a loading structure extending from one end of the slot, the loading structure for top loading the radiation portion; and an impedance matching portion for coupling a feed to the major radiation portion. The antenna also includes distributed matching patches. The distributed matching patches realize extra wideband performance. The antennas in the present invention are suitable for various wireless communications, such as PCS, Cellular Telephone, wireless data and computer network.

摘要翻译： 描述了一种宽带槽环天线，其包括具有大致矩形的外周边和限定内周的槽的大致平面的环形元件，所述槽环结构的中间部分提供天线的主辐射部分; 从槽的一端延伸的装载结构，用于顶部装载辐射部分的装载结构; 以及用于将馈送耦合到主辐射部分的阻抗匹配部分。 天线还包括分布式匹配补丁。 分布式匹配补丁实现了额外的宽带性能。 本发明中的天线适用于各种无线通信，例如PCS，蜂窝电话，无线数据和计算机网络。

公开(公告)号：US5727020A

公开(公告)日：1998-03-10

申请号：US747874

申请日：1996-11-13

申请人： Bryan Taylor ,  Mihal Lazaridis ,  Peter Edmonson ,  Perry Jarmuszewski ,  Lizhong Zhu ,  Steven Carkner ,  Matthias Wandel

发明人： Bryan Taylor ,  Mihal Lazaridis ,  Peter Edmonson ,  Perry Jarmuszewski ,  Lizhong Zhu ,  Steven Carkner ,  Matthias Wandel

IPC分类号： H04B1/16 ,  H04B1/40 ,  H04L7/04 ,  H04L12/28 ,  H04L5/14

CPC分类号： H04W52/028 ,  H04B1/40 ,  H04L7/046 ,  Y02B60/50

摘要： A wireless radio modem for incorporation into a host system includes radio frequency modulation/demodulation circuitry employing electronic device elements that operate in a frequency range that minimize the RF interference between the radio modem and the host system. Radio modem power conservation is further maximized by 1) simplifying signal modulation processing by use of a single sideband suppressed carrier waveform transition table, thereby reducing processing requirements; and 2) incorporating a "sleep mode" feature in which all non-timer circuitry is powered-down when not in use.

公开(公告)号：US08644539B2

公开(公告)日：2014-02-04

申请号：US13572985

申请日：2012-08-13

申请人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan

发明人： Lizhong Zhu ,  George Soliman Mankaruse ,  Michael Stephen Corrigan

IPC分类号： H04R25/00

CPC分类号： H04R25/505 ,  Y10T29/49005

摘要： A hearing aid has improved immunity to RF electromagnetic interference produced from wireless communications devices. A microphone receives audio signals from the environment. Audio circuitry is connected to the microphone and amplifies the audio signals. A speaker is connected to the audio circuitry and directs the audio signals into an ear canal of the user of the hearing aid. The audio connection lines connect the microphone and audio circuitry and the speaker and audio circuitry. A filter is connected into each of the audio connection lines and operative for reducing the RF coupling from a wireless communications device.

摘要翻译： 助听器改善了对无线通信设备产生的射频电磁干扰的免疫力。 麦克风接收来自环境的音频信号。 音频电路连接到麦克风并放大音频信号。 扬声器连接到音频电路，并将音频信号引导到助听器的用户的耳道中。 音频连接线连接麦克风和音频电路以及扬声器和音频电路。 滤波器连接到每个音频连接线中并且用于减少来自无线通信设备的RF耦合。

公开(公告)号：US20140024410A1

公开(公告)日：2014-01-23

申请号：US13552753

申请日：2012-07-19

申请人： Fei HE ,  Jun Xu ,  Lizhong Zhu

发明人： Fei HE ,  Jun Xu ,  Lizhong Zhu

IPC分类号： H04W88/06 ,  H04W52/52

CPC分类号： H04W52/36 ,  H04W88/06

摘要： A mobile wireless communications device may include a housing, a cellular transceiver carried by the housing and to operate at a given transmit power level from among different transmit power levels, and a WLAN transceiver carried by the housing and to operate at a given receive gain level from among different receive gain levels. The mobile wireless communications device may also include a controller to select the given receive gain level based upon the given transmit power level of the cellular transceiver.

摘要翻译： 移动无线通信设备可以包括外壳，由外壳承载的蜂窝收发器，并且在不同发射功率电平之间的给定发射功率电平下操作，以及由外壳承载并在给定的接收增益级别 从不同的接收增益水平。 移动无线通信设备还可以包括控制器，用于基于蜂窝收发器的给定发射功率电平来选择给定的接收增益电平。

公开(公告)号：US08417299B2

公开(公告)日：2013-04-09

申请号：US13303342

申请日：2011-11-23

申请人： Lizhong Zhu ,  Michael Corrigan ,  George Mankaruse ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  Michael Corrigan ,  George Mankaruse ,  Perry Jarmuszewski

IPC分类号： H04M1/00

CPC分类号： H04B15/00 ,  H04M1/60 ,  H04M1/74 ,  H05K9/0022

摘要： A telephone to be connected to a wireline having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a transmit amplifier, a receive amplifier, an audio input transducer connected to the transmit amplifier, and an audio output transducer connected to the receive amplifier. The telephone may further include an RF shield(s) surrounding the audio input transducer and the audio output transducer for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device. Moreover, the telephone may also include at least one RF audio input filter element connected to the audio input transducer and at least one RF audio output filter element connected to the audio output transducer, both of which are also for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

公开(公告)号：US08391933B2

公开(公告)日：2013-03-05

申请号：US13073603

申请日：2011-03-28

申请人： Lizhong Zhu ,  Michael Corrigan ,  George Mankaruse

发明人： Lizhong Zhu ,  Michael Corrigan ,  George Mankaruse

IPC分类号： H04M1/00

CPC分类号： H04M1/0202 ,  H04B15/00

摘要： A portable audio device having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a portable housing, a battery carried thereby, a recharging power input connected to the battery, a digital signal input, and an audio analog signal output. A digital-to-analog converter (DAC) may be carried by the portable housing and powered by the battery for converting a selected digital audio file from a memory into an analog audio signal. An audio analog amplifier may be connected between the DAC and the audio analog signal output. A first RF filter(s) may be connected to the recharging power input, and a second RF filter(s) may be connected to the audio analog signal output, both for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.

公开(公告)号：US08315578B2

公开(公告)日：2012-11-20

申请号：US12173045

申请日：2008-07-15

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Perry Jarmuszewski

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan ,  Perry Jarmuszewski

IPC分类号： H04B1/66

CPC分类号： H04B1/0483 ,  H04B2001/0491 ,  Y02D70/00

摘要： A mobile wireless communications device includes a housing an antenna, and radio frequency (RF) circuitry. A transceiver is connected to the antenna and a processor is operative with the RF circuitry. The transceiver includes an In-phase and Quadrature (I/Q) Modulation and Power Amplification circuit having an In-phase (I) circuit with a modulator mixer and power amplifier circuit. A Quadrature (Q) circuit includes a modulator mixer and power amplifier circuit. A power combiner receives the separately amplified In-phase and Quadrature signals and sums and outputs the signals as a combined I and Q signal. The I and Q circuits are isolated from the combined I and Q signal to enhance antenna matching and transmitted radiated power (TRP) and reduce harmonic emission from the power amplification circuits.

摘要翻译： 移动无线通信设备包括外壳天线和射频（RF）电路。 收发器连接到天线，并且处理器与RF电路一起工作。 收发器包括具有调制器混频器和功率放大器电路的同相（I）电路的同相和正交（I / Q）调制和功率放大电路。 正交（Q）电路包括调制器混频器和功率放大器电路。 功率组合器接收单独放大的同相和正交信号，并将信号相加和输出，作为组合的I和Q信号。 I和Q电路与组合的I和Q信号隔离，以增强天线匹配和发射辐射功率（TRP），并减少功率放大电路的谐波发射。

公开(公告)号：US08285343B2

公开(公告)日：2012-10-09

申请号：US13186920

申请日：2011-07-20

申请人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan

发明人： Lizhong Zhu ,  George Mankaruse ,  Michael Corrigan

IPC分类号： H04M1/00 ,  H01R12/00 ,  H05K1/00

CPC分类号： H04M1/05 ,  H04M1/6025 ,  H04M2250/02

摘要： A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.

摘要翻译： 无线耳机提高了对无线通信设备产生的RF电磁干扰的抵抗力。 耳机本体适于由用户佩戴并且包括麦克风和听筒。 天线接收无线通信信号并将它们传递到安装在耳机主体内的RF和音频电路。 RF和音频电路包括可操作地连接到天线的蓝牙模块，用于发送和接收无线通信信号，连接到蓝牙模块的音频CODEC以及连接在CODEC和听筒之间以及CODEC和麦克风之间的音频连接线。 滤波器连接到耳机和麦克风的每个音频连接线，并且用于减少来自移动无线通信设备的RF耦合。

公开(公告)号：US08244234B2

公开(公告)日：2012-08-14

申请号：US11831983

申请日：2007-08-01

申请人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski ,  Ying Tong Man ,  George Mankaruse ,  Yihong Qi

发明人： Lizhong Zhu ,  Michael Corrigan ,  Perry Jarmuszewski ,  Ying Tong Man ,  George Mankaruse ,  Yihong Qi

IPC分类号： H04W24/00

CPC分类号： G01R29/0864 ,  H04B17/102

摘要： A system for testing a communications device includes a portable wireless communications device comprising a transmitter for transmitting an RF signal. A monitoring device receives the RF signals from the portable wireless communications device and analyzes the RF signals to determine total radiated power emitted from the transmitter. An adaptive antenna equivalent circuit is coupled to the transmitter. A connection line extends between the adaptive antenna equivalent circuit and the monitoring device. The adaptive antenna equivalent circuit has an equivalent antenna impedance matched to the portable wireless communications device and the connection line and monitoring device based on transmit frequency to ensure that total radiated power of the RF signals is transmitted from the transmitter to the monitoring device.

摘要翻译： 用于测试通信设备的系统包括便携式无线通信设备，其包括用于发射RF信号的发射机。 监控设备从便携式无线通信设备接收RF信号，并分析RF信号以确定从发射机发射的总辐射功率。 自适应天线等效电路耦合到发射机。 连接线在自适应天线等效电路和监视装置之间延伸。 自适应天线等效电路具有与便携式无线通信设备和基于发射频率的连接线路和监视设备匹配的等效天线阻抗，以确保RF信号的总辐射功率从发射机传输到监视设备。