公开(公告)号：US07359701B2

公开(公告)日：2008-04-15

申请号：US10663591

申请日：2003-09-16

Applicant: Wen Zhao ,  Xin Jin ,  C. Nicolas Bugnariu ,  M. Khaledul Islam ,  Fangyi Luo ,  Jiansheng Chen

Inventor： Wen Zhao ,  Xin Jin ,  C. Nicolas Bugnariu ,  M. Khaledul Islam ,  Fangyi Luo ,  Jiansheng Chen

IPC: H04Q7/20

CPC classification number: H04W84/02 ,  H04B17/0082 ,  H04B17/16

Abstract: A method for conducting a radiated performance test on a wireless device comprising the steps of: establishing an interface from a test computer to the wireless device; establishing a data connection on the interface between the test computer and the wireless device; initializing and starting a timer for a predetermined interval on the wireless device; starting a test script on the wireless device; removing the interface during the predetermined interval; running the radiated performance test after the predetermined interval; storing a log of the radiated performance test on the wireless device; and analysing test results based on the log.

Abstract translation: 一种用于在无线设备上进行辐射性能测试的方法，包括以下步骤：建立从测试计算机到无线设备的接口; 在测试计算机和无线设备之间的接口上建立数据连接; 在无线设备上初始化和启动定时器预定间隔; 在无线设备上启动测试脚本; 在预定间隔期间移除界面; 在预定间隔后运行辐射性能测试; 将辐射性能测试的日志存储在无线设备上; 并根据日志分析测试结果。

公开(公告)号：US07333784B2

公开(公告)日：2008-02-19

申请号：US10760060

申请日：2004-01-16

Applicant: Xin Jin ,  Wen Zhao ,  Qingzhong Jiao

Inventor： Xin Jin ,  Wen Zhao ,  Qingzhong Jiao

IPC: H04B1/04

CPC classification number: H04W52/343 ,  H03G3/3042 ,  H04W52/16 ,  H04W52/26 ,  H04W52/36 ,  H04W52/52

Abstract: It has now been found that in some transmitter implementations which transmit multiple code channels, for example CDMA transmitters, the observed power for each code channel at the output relative to the other code channels is dependent upon the total transmit power due to non-linearities in the transmitter. Methods and apparatus are provided which use pre-set digital gains or digital gain adjustments to compensate for the non-linearities as a function of total transmit power such that at the output, the desired relative powers are observed.

Abstract translation: 现在已经发现，在一些发送多个码信道的发射机实现中，例如CDMA发射机，相对于其它码信道在输出处的每个码信道的观测功率取决于由于非线性的总发射功率 发射机。 提供了使用预设数字增益或数字增益调整来补偿作为总发射功率的函数的非线性的方法和装置，使得在输出处观察到期望的相对功率。

公开(公告)号：US07333563B2

公开(公告)日：2008-02-19

申请号：US10781812

申请日：2004-02-20

Applicant: Wen-Yen Chan ,  Nasserullah Khan ,  Qingzhong Jiao ,  Xin Jin ,  Nagula Tharma Sangary ,  Michael Franz Habicher

Inventor： Wen-Yen Chan ,  Nasserullah Khan ,  Qingzhong Jiao ,  Xin Jin ,  Nagula Tharma Sangary ,  Michael Franz Habicher

IPC: H04K1/02

CPC classification number: H04W52/343

Abstract: A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block.

Abstract translation: 用于无线通信设备的电源管理系统和方法基于来自基站的接收信号强度指示符信号和功率控制指令信号中的至少一个产生平均期望的发射功率信号。 基于输出数据流的数据参数和至少一个环境信息信号生成电源电平调整信号。 使用电源电平调整信号和平均期望发送功率或增益控制信号和电源电平调整信号的改变版本的组合来产生可变电源信号，该可变电源信号被提供给输出放大器块用于充分地 产生输出无线设备无线电信号，同时减少输出放大器块中的功率损耗。

公开(公告)号：US20080009254A1

公开(公告)日：2008-01-10

申请号：US11861088

申请日：2007-09-25

Applicant: Xin Jin

Inventor： Xin Jin

IPC: H04B17/00

CPC classification number: H04B17/336

Abstract: One illustrative method of reducing signal interference in a wireless receiver includes receiving a radio frequency (RF) signal; amplifying the received RF signal with a gain G; producing a baseband signal from the amplified RF signal; producing a signal-to-interference (S/I) ratio from the baseband signal; and adjusting the gain G based on the S/I ratio. Preferably, the gain G is varied over a time period to produce a plurality of S/I ratios, so that the gain G corresponding a maximum S/I ratio produced over the time period can be selected for optimal performance. With this technique, higher accuracy is provided as intermodulation distortion is accounted for in the S/I ratio. Advantageously, the S/I ratio calculations and the gain adjustments are performed digitally by one or more processors such as a digital signal processor (DSP).

Abstract translation: 降低无线接收机中的信号干扰的一种说明性方法包括接收射频（RF）信号; 用增益G放大接收到的RF信号; 从放大的RF信号产生基带信号; 从基带信号产生信号干扰（S / I）比; 并根据S / I比调节增益G。 优选地，增益G在一段时间内变化以产生多个S / I比，使得可以选择对应于在该时间段内产生的最大S / I比的增益G用于最佳性能。 使用这种技术，提供了更高的精度，因为在S / I比中考虑到互调失真。 有利地，S / I比计算和增益调整由诸如数字信号处理器（DSP）的一个或多个处理器数字地执行。

公开(公告)号：US20070292800A1

公开(公告)日：2007-12-20

申请号：US11453177

申请日：2006-06-14

Applicant: Xin Jin ,  Lloyd A. Lobo ,  Dinesh Tyagi

Inventor： Xin Jin ,  Lloyd A. Lobo ,  Dinesh Tyagi

IPC: G03G9/08

CPC classification number: G03G9/08791 ,  G03G9/0806 ,  G03G9/0827 ,  G03G9/08793 ,  G03G9/09725

Abstract: The present invention provides a method for the preparation of a UV curable electrostatographic toner. The process includes the steps of dispersing a polymeric material and a UV curable material and a UV photoinitiator in an organic solvent to form an organic phase. The organic phase is dispersed in an aqueous phase containing a particulate stabilizer to form a dispersion. The dispersion is homogenized and the organic solvent is removed from the dispersed particles in the dispersion which are then recovered.

Abstract translation: 本发明提供了一种制备可UV固化的静电色谱调色剂的方法。 该方法包括将聚合物材料和UV可固化材料和UV光引发剂分散在有机溶剂中以形成有机相的步骤。 将有机相分散在含有颗粒稳定剂的水相中以形成分散体。 将分散体均化，并从分散体中分散的颗粒中除去有机溶剂，然后回收。

公开(公告)号：US07308042B2

公开(公告)日：2007-12-11

申请号：US10787097

申请日：2004-02-27

Applicant: Xin Jin ,  Qingzhong Jiao ,  Wen Chan

Inventor： Xin Jin ,  Qingzhong Jiao ,  Wen Chan

IPC: H04L25/03

CPC classification number: H04W52/225 ,  H04W52/08 ,  H04W52/10 ,  H04W52/52

Abstract: The power efficiency of a transmitter is optimized through control of a selected aspect of the transmitter, for instance, a parameter of a power amplifier within the transmitter. The control of the aspect is based on a generated indication of desired average transmitted power. Based on this indication, a hardware path produces a first adjustment signal and a software path produces a second adjustment value, where the second adjustment value has been previously determined to correspond to the particular indication of desired average transmitted power through calibration. A difference between a first adjustment value, which is based on the first adjustment signal, and the second adjustment value is used to produce a correction signal, which is used to alter the first adjustment signal and produce a signal to control the selected aspect of the transmitter.

Abstract translation: 通过控制发射机的选定方面，例如发射机内的功率放大器的参数来优化发射机的功率效率。 该方面的控制基于所期望的平均发射功率的生成指示。 基于该指示，硬件路径产生第一调整信号，并且软件路径产生第二调整值，其中第二调整值已经被预先确定为对应于通过校准的期望的平均发送功率的特定指示。 使用基于第一调整信号的第一调整值与第二调整值之间的差异来产生校正信号，其用于改变第一调整信号并产生信号以控制所选择的方面 发射机。

公开(公告)号：US20070282048A1

公开(公告)日：2007-12-06

申请号：US11446894

申请日：2006-06-05

Applicant: Xin Jin ,  Douglas E. Garman

Inventor： Xin Jin ,  Douglas E. Garman

IPC: C08K5/07

CPC classification number: C08K5/13 ,  C08K5/50 ,  Y10T428/31544 ,  C08L27/12

Abstract: The present invention discloses a fuser roller composition that contains a fluorocopolymer, an aliphatic ketone organic solvent, metal oxide particles, and a benzyltriphenylphosphonium phenolate salt curing agent. To this composition is added a sufficient amount of 4,4′-(hexafluoroisopropylidene) diphenol to extend a time at which viscosity of the composition rises above a predetermined level.

Abstract translation: 本发明公开了一种定影辊组合物，其含有含氟共聚物，脂族酮有机溶剂，金属氧化物颗粒和苄基三苯基鏻酚盐固化剂。 向该组合物中加入足量的4,4' - （六氟异亚丙基）二酚以延长组合物的粘度上升超过预定水平的时间。

公开(公告)号：US07274920B2

公开(公告)日：2007-09-25

申请号：US10883246

申请日：2004-06-30

Applicant: Xin Jin

Inventor： Xin Jin

IPC: H04B17/00

CPC classification number: H04B17/336

Abstract: One illustrative method of reducing signal interference in a wireless receiver includes receiving a radio frequency (RF) signal; amplifying the received RF signal with a gain G; producing a baseband signal from the amplified RF signal; producing a signal-to-interference (S/I) ratio from the baseband signal; and adjusting the gain G based on the S/I ratio. Preferably, the gain G is varied over a time period to produce a plurality of S/I ratios, so that the gain G corresponding a maximum S/I ratio produced over the time period can be selected for optimal performance. With this technique, higher accuracy is provided as intermodulation distortion is accounted for in the S/I ratio. Advantageously, the S/I ratio calculations and the gain adjustments are performed digitally by one or more processors such as a digital signal processor (DSP).

Abstract translation: 降低无线接收机中的信号干扰的一种说明性方法包括接收射频（RF）信号; 用增益G放大接收到的RF信号; 从放大的RF信号产生基带信号; 从基带信号产生信号干扰（S / I）比; 并根据S / I比调节增益G。 优选地，增益G在一段时间内变化以产生多个S / I比，使得可以选择对应于在该时间段内产生的最大S / I比的增益G用于最佳性能。 使用这种技术，提供了更高的精度，因为在S / I比中考虑到互调失真。 有利地，S / I比计算和增益调整由诸如数字信号处理器（DSP）的一个或多个处理器数字地执行。

公开(公告)号：US07257179B2

公开(公告)日：2007-08-14

申请号：US10091772

申请日：2002-03-06

Applicant: Xin Jin ,  Runbo Fu ,  Jorgen S. Nielsen

Inventor： Xin Jin ,  Runbo Fu ,  Jorgen S. Nielsen

IPC: H04B7/10 ,  H04L1/02

CPC classification number: H04L1/0618

Abstract: A system and method for obtaining a frequency error estimate representing the difference between a reference frequency and the frequency of a space-time transmit diversity signal is disclosed herein. The method includes taking the correlation of total sums, comprised of partial sums taken in defined first and second intervals, to represent the frequency error as the imaginary component of the correlation function.

Abstract translation: 本文公开了一种用于获得表示基准频率与时空发射分集信号的频率之间的差的频率误差估计的系统和方法。 该方法包括采用由定义的第一和第二间隔中采取的部分和组成的总和的相关，以表示作为相关函数的虚分量的频率误差。

公开(公告)号：US20070021138A1

公开(公告)日：2007-01-25

申请号：US11483122

申请日：2006-07-07

Applicant: Andrew Allen ,  Xin Jin ,  Wen Zhao

Inventor： Andrew Allen ,  Xin Jin ,  Wen Zhao

IPC: H04B1/38 ,  H04B7/00

CPC classification number: H04W4/10 ,  H04W76/45

Abstract: In one illustrative example of the present disclosure, a mobile communication device has one or more processors and a wireless transceiver adapted to provide communications through a wireless communication network. The one or more processors are operative to produce a mobile device indication message which indicates whether the mobile device supports buffering of Push-To-Talk (PTT) communications from the mobile device. This message is transmitted by the wireless transceiver to a PTT service entity through the wireless network. The one or more processors may be further operative to receive, from the PTT service entity through the wireless network, a network indication message which instructs the mobile device whether to use buffering for the PTT communications from the mobile device (assuming a buffer memory for PTT buffering is available in the mobile device). The mobile device may use the buffer memory for the buffering of the PTT communication based on the network indication message from the PTT service entity.

Abstract translation: 在本公开的一个说明性示例中，移动通信设备具有一个或多个处理器和适于通过无线通信网络提供通信的无线收发器。 一个或多个处理器可操作地产生移动设备指示消息，其指示移动设备是否支持来自移动设备的一键通（PTT）通信的缓冲。 该消息由无线收发器通过无线网络传输到PTT服务实体。 一个或多个处理器可以进一步操作以从PTT服务实体通过无线网络接收网络指示消息，其指示移动设备是否使用来自移动设备的PTT通信的缓冲（假设用于PTT的缓冲存储器 缓冲在移动设备中可用）。 移动设备可以使用缓冲存储器来基于来自PTT服务实体的网络指示消息来缓存PTT通信。