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21. 发明授权

US10225745B2 Method and apparatus for calculating a coverage signal strength indicator 有权
公开(公告)号：US10225745B2
公开(公告)日：2019-03-05
申请号：US15628359
申请日：2017-06-20
申请人： BlackBerry Limited
发明人： Michael Peter Montemurro , Khaled Lakhdhar , Stephen McCann , Lizhong Zhu
IPC分类号： H04W16/18 , H04B17/318 , H04B17/23 , H04B17/373 , H04W84/12
摘要： Apparatus and method pertaining to the calculation of at least one value that represents, at least in part, wireless reception signal strength from the perspective of both a local wireless receiver and a remote receiver that receives wireless transmissions from a local wireless transmitter. By one approach the apparatus directly determines the wireless reception signal strength from the perspective of the local wireless receiver and indirectly determines the wireless reception signal strength from the perspective of the remote receiver.

22. 发明申请

US20180084470A1 DETERMINING HANDOVER PARAMETERS 审中-公开
公开(公告)号：US20180084470A1
公开(公告)日：2018-03-22
申请号：US15270807
申请日：2016-09-20
申请人： BlackBerry Limited
发明人： Khaled Lakhdhar , Lizhong Zhu , Cristian Lambiri
IPC分类号： H04W36/20 , H04W36/30 , H04W36/08 , H04W24/08
CPC分类号： H04W36/20 , H04B17/318 , H04B17/391 , H04W24/08 , H04W36/00837 , H04W36/08 , H04W36/30 , H04W84/12 , H04W88/06
摘要： In some examples, to mitigate interference of wireless communications, an electronic device that includes a first type wireless component and a second type wireless component receives values of parameters relating to wireless communication using the first type wireless component. The electronic device determines, using a model of a relationship between the parameters relating to wireless communication using the first type wireless component and at least one handover parameter relating to wireless communication using the second type wireless component, a value of the at least one handover parameter based on the received values of the parameters relating to wireless communication using the first type wireless component. It is determined whether the electronic device should be handed over from a first access point to a second access point based on the determined value of the at least one handover parameter.

23. 发明授权

US09806826B2 Mobile wireless communications device with reduced interfering energy from the display and related methods 有权
公开(公告)号：US09806826B2
公开(公告)日：2017-10-31
申请号：US14062297
申请日：2013-10-24
申请人： BLACKBERRY LIMITED
发明人： Lizhong Zhu , Michael Stephen Corrigan , Perry Jarmuszewski , Liviu George , George Soliman Mankaruse , James Alexander Robinson , Marc A. Drader
IPC分类号： H04B15/02 , H04M1/02 , H05K1/02
CPC分类号： H04B15/02 , H04M1/0266 , H05K1/0233 , Y10T29/4913
摘要： A mobile wireless communications device includes a housing and circuit board carried by the housing and includes radio frequency (RF) circuitry and a processor carried by the circuit board and operative with each other. A display connector for an LCD connector is mounted on the circuit board and adapted to be connected to a display. Display connection lines are carried by the circuit board and interconnect the display connector and processor for carrying signals from the processor to the display connector and a connected display. Filters are carried by the circuit board and connected to the display connection lines and reduce any interfering energy from the processor and display.

24. 发明申请

US20170163314A1 ELECTRONIC DEVICE WITH NFC ANTENNA ADJACENT DISPLAY AND RELATED METHODS 审中-公开
公开(公告)号：US20170163314A1
公开(公告)日：2017-06-08
申请号：US15432979
申请日：2017-02-15
申请人： BLACKBERRY LIMITED
发明人： Lizhong Zhu , Libo Zhu , Scott Leonard Dill , Raymond Michael Dikun , Pha Cong Nguyen , Soo Liam Ooi , Randy Alan Wiessner
IPC分类号： H04B5/00 , H01Q7/00 , H01Q1/24 , H01Q1/52 , H04B1/3888 , H04M1/02
CPC分类号： H04M1/026 , H01Q1/24 , H01Q1/243 , H01Q1/526 , H01Q7/00 , H01Q21/28 , H04B1/3888 , H04B5/0081 , H04M1/0266 , H04M2250/04 , H04M2250/22 , Y10T29/49018
摘要： An electronic device may include a housing, processing circuitry carried by the housing, and at least one wireless transceiver carried by the housing and a NFC device carried by the housing. The electronic device may also include a display carried by the housing and having an internal surface within the housing and a display surface opposite the internal surface, and an NFC antenna mounted on and extending across at least a portion of the internal surface of the display, wherein the NFC antenna comprises a substrate and electrically conductive traces thereon defining a plurality of loops.

25. 发明授权

US09538436B2 Mitigating interference with wireless communications 有权
标题翻译：减轻对无线通信的干扰
公开(公告)号：US09538436B2
公开(公告)日：2017-01-03
申请号：US14472758
申请日：2014-08-29
申请人： BLACKBERRY LIMITED
发明人： Lizhong Zhu , Khaled Lakhdhar , Michael Peter Montemurro , Fei He , Qingmai Zhou , Jun Xu , Dong Wang , Zongyou Zhang , Mohammed Mahdi Hasan , Libo Zhu , Cristian Lambiri , Goran Hageltorn , Yan Wu , Daniel Fischer
IPC分类号： H04W4/00 , H04W36/00 , H04W36/30
CPC分类号： H04W36/0094 , H04W36/0061 , H04W36/0083 , H04W36/30
摘要： An electronic device monitors a quality of a wireless connection between the electronic device and a first access point. Based on the monitoring and a collection of parameters relating to controlling handover between access points, a determination is made regarding whether the electronic device should be handed over to a second access point from the first access point, where the parameters differ for different combinations of the first access point and candidate destination access points for handover of the electronic device from the first access point.
摘要翻译：电子设备监视电子设备和第一接入点之间的无线连接的质量。基于与控制接入点之间的切换有关的参数的监视和收集，确定电子设备是否应当从第一接入点切换到第二接入点，其中参数对于不同的组合第一接入点和用于从第一接入点切换电子设备的候选目的接入点。

26. 发明授权

US08971971B2 Mobile wireless communications device including a self-contained rechargeable battery pack with filter and related methods 有权
标题翻译：移动无线通信设备包括具有滤波器和相关方法的独立可充电电池组
公开(公告)号：US08971971B2
公开(公告)日：2015-03-03
申请号：US14269548
申请日：2014-05-05
申请人： Blackberry Limited
发明人： Lizhong Zhu , Michael Stephen Corrigan , George Soliman Mankaruse
IPC分类号： H04B1/38 , H01M2/00 , H01M10/42 , H01M10/48 , H04B15/00 , H04M1/02 , H01M10/0525
CPC分类号： H01M2/00 , H01M10/0525 , H01M10/4257 , H01M10/48 , H01M10/486 , H04B1/3883 , H04B15/00 , H04M1/0262 , H04M2001/0204 , Y10T29/49108
摘要： A mobile wireless communications device may include a portable device housing, wireless communications circuitry carried by the portable device housing, and a self-contained rechargeable battery pack carried by the portable housing for powering the wireless communications circuitry. The self-contained rechargeable battery pack may include a battery casing, at least one internal battery cell carried within the battery casing, internal battery circuitry carried within the battery casing, and at least one internal filter element carried within the battery casing and coupled to the internal battery circuitry.
摘要翻译：移动无线通信设备可以包括容纳由便携式设备外壳承载的无线通信电路的便携式设备和由便携式外壳承载的用于为无线通信电路供电的独立的可再充电电池组。独立的可再充电电池组可以包括电池壳体，在电池壳体内承载的至少一个内部电池单元，在电池壳体内承载的内部电池电路，以及承载在电池壳体内的至少一个内部滤波器元件，内部电池电路。

27. 发明授权

US08965308B2 Mobile wireless communications device with reduced harmonics resulting from metal shield coupling 有权
标题翻译：移动无线通信设备，由金属屏蔽耦合引起的谐波减少
公开(公告)号：US08965308B2
公开(公告)日：2015-02-24
申请号：US14093788
申请日：2013-12-02
申请人： Blackberry Limited
发明人： Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan
IPC分类号： H04B1/04 , H04B1/10 , H01Q1/22
CPC分类号： H04B1/0475 , H01Q1/2241 , Y10T29/49018
摘要： A mobile wireless communications device includes a housing, antenna, and circuit board carried by the housing and having radio frequency (RF) circuitry operative with the antenna for receiving and transmitting RF signals through the antenna. A power amplifier is connected within a transmission line for amplifying RF signals to be transmitted over the transmission line to the antenna. An antenna switch is connected to the antenna and RF circuitry. An RF shield surrounds the power amplifier and antenna switch and isolates the power amplifier and antenna switch from the antenna and RF circuitry. A low pass filter is connected to the power amplifier and antenna switch for reducing any RF coupling of voltage standing waves of upper harmonic frequencies from the power amplifier into the antenna switch through the RF shield while maintaining transmission of signals through the transmission line at a desired fundamental frequency.
摘要翻译：移动无线通信设备包括由外壳承载的壳体，天线和电路板，并且具有与天线操作的射频（RF）电路，用于通过天线接收和发送RF信号。功率放大器连接在传输线内，用于放大要通过传输线传输到天线的RF信号。天线开关连接到天线和RF电路。 RF屏蔽包围功率放大器和天线开关，并将功率放大器和天线开关与天线和RF电路隔离开来。低通滤波器连接到功率放大器和天线开关，用于通过RF屏蔽减少来自功率放大器的高次谐波频率的电压驻波与天线开关的任何RF耦合，同时保持信号通过传输线以期望的传输基频

28. 发明申请

US20130315345A1 MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASE (I) AND QUADRATURE (Q) PHASE POWER AMPLIFICATION AND POWER AMPLIFIER PRE-DISTORTION AND IQ BALANCE COMPENSATION 有权
标题翻译：移动无线通信设备，具有单相（I）和三相（Q）相功率放大和功率放大器预失真和IQ平衡补偿
公开(公告)号：US20130315345A1
公开(公告)日：2013-11-28
申请号：US13956408
申请日：2013-08-01
申请人： BLACKBERRY LIMITED
发明人： Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan , Perry Jarmuszewski , Oleksiy Kravets , Kent Arnold Nickerson , Nagula Tharma Sangary
IPC分类号： H04L1/00
CPC分类号： H04L1/0035 , H04L27/2089 , H04L27/364 , H04L27/367
摘要： A communications device, in one aspect as a portable wireless communications device, includes an in-phase modulator and power amplifier that receives a baseband I signal and modulates and amplifies the I signal. A quadrature modulator and power amplifier receives a baseband Q signal and modulates and amplifies the Q signal. A power combiner sums and outputs the I and Q signals. An I demodulator circuit receives a signal fed back from the I power amplifier and demodulates the fed back signal to produce demodulated I signals. A Q demodulator circuit receives a signal fed back from the Q power amplifier and demodulates the fed back signal to produce demodulated Q signals. A processor compares the digital, baseband I and Q signals with a demodulated I and Q signals to compensate for amplitude, frequency and phase modulation errors.
摘要翻译：在一方面，作为便携式无线通信设备的通信设备包括接收基带I信号并调制和放大I信号的同相调制器和功率放大器。正交调制器和功率放大器接收基带Q信号并调制和放大Q信号。功率组合器对I和Q信号进行求和并输出。 I解调器电路接收从I功率放大器反馈的信号并解调反馈信号以产生解调的I信号。 Q解调器电路接收从Q功率放大器反馈的信号，并且对反馈信号进行解调以产生解调的Q信号。处理器将数字，基带I和Q信号与解调的I和Q信号进行比较，以补偿幅度，频率和相位调制误差。

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