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    • 4. 发明申请
    • WIRELESS DIGITAL COMMUNICATION METHOD AND SYSTEM
    • 无线数字通信方法与系统
    • US20130243219A1
    • 2013-09-19
    • US13988369
    • 2012-09-28
    • Xiaobo ZengQiang GaoChongle Wang
    • Xiaobo ZengQiang GaoChongle Wang
    • H04W52/02
    • H04W52/0225H04L1/0006H04L1/0025H04L1/1854H04L1/1887H04L2001/0093Y02D70/122Y02D70/142Y02D70/144
    • The present invention discloses a wireless digital communication method and a wireless digital communication system, relates to the technical field of wireless communication, and can increase the flexibility of communication in a wireless audio transmission system and the utilization ratio of resources of the system and effectively reduce the power consumption of the system. A wireless digital communication method according to an embodiment of the present invention comprises: acquiring communication status indication information which indicates a receiving terminal status and/or a channel status; generating frame structure adjustment information when it is known from the communication status indication information that a communication status has changed, and transmitting the frame structure adjustment information to a corresponding receiving terminal, wherein the frame structure adjustment information comprises radio packet adjustment information; and adjusting an adopted frame structure according to the frame structure adjustment information and performing data communication with the receiving terminal according to the adjusted frame structure. This solution applies to various wireless communication systems having high requirements on the transmission quality.
    • 本发明公开了一种无线数字通信方法和无线数字通信系统,涉及无线通信技术领域,可以增加无线音频传输系统中通信的灵活性和系统资源利用率,有效降低 系统的功耗。 根据本发明实施例的无线数字通信方法包括:获取指示接收终端状态和/或信道状态的通信状态指示信息; 当从通信状态指示信息知道通信状态已经改变时,生成帧结构调整信息,并且将帧结构调整信息发送到对应的接收终端,其中帧结构调整信息包括无线分组调整信息; 以及根据帧结构调整信息调整采用的帧结构,并根据调整后的帧结构与接收终端进行数据通信。 该解决方案适用于对传输质量要求高的各种无线通信系统。
    • 5. 发明授权
    • Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles
    • 单壳式或多层壳式管壳换热器,带螺旋挡板
    • US07740057B2
    • 2010-06-22
    • US11966256
    • 2007-12-28
    • Qiuwang WangQiuyang ChenDongjie ZhangMin ZengYining WuQiang Gao
    • Qiuwang WangQiuyang ChenDongjie ZhangMin ZengYining WuQiang Gao
    • F28D7/16F28F9/24
    • F28F9/22F28D7/1607F28F9/0131F28F2009/228Y10T29/4935Y10T29/49377
    • The present invention provides a single shell-pass shell-and-tube heat exchanger with helical baffles, where within a single pitch, the helical baffles are separated into inner and outer parts along the radial direction of the shell. In the central portion of the inner space of the shell, an inner non-continuous helical form is employed; in other portion outside the central portion, doughnut shaped helical baffles with continuous curved surfaces are arranged to form an outer continuous helical baffle, and the outer helical baffles are arranged to surround the inner helical baffles. Furthermore, the present invention relates to a multiple shell-pass shell-and-tube heat exchanger with helical baffles, in which complete continuous helical baffles are provided in shell-sides other than the inner shell-pass, while non-continuous helical baffles or other flow guide means are employed in the inner shell-pass. The present invention makes flow patterns of fluids on the shell side more desirable, leading to a reduced flow pressure drop, and mitigate fouling, thus the heat transfer rate is improved and the service life of the heat exchanger is increased. The present invention also provides two methods for manufacture of continuous helical baffles, which ensure the concentricity of the tube bundle holes on each continuous helical baffle so as to facilitate installation of heat exchange tube bundles.
    • 本发明提供了一种具有螺旋挡板的单壳式管壳式热交换器,其中在单个节距内,螺旋形挡板沿着壳体的径向分离成内部和外部部分。 在壳的内部空间的中心部分,采用内部非连续螺旋形式; 在中心部分外的其他部分,布置具有连续弯曲表面的环形螺旋挡板以形成外连续的螺旋挡板,并且外螺旋挡板被布置成围绕内螺旋挡板。 此外,本发明涉及一种具有螺旋挡板的多层壳式管壳式热交换器,其中在外壳侧以外的完全连续的螺旋挡板设置在内壳外,而非连续的螺旋挡板或 在内壳通道中采用其它流动引导装置。 本发明使得壳体上的流体流动模式更理想,导致流量压降降低,并且减轻结垢,从而提高了传热速率并提高了热交换器的使用寿命。 本发明还提供了制造连续螺旋挡板的两种方法,其确保每个连续螺旋挡板上的管束孔的同心度,以便于安装热交换管束。
    • 6. 发明申请
    • SINGLE SHELL-PASS OR MULTIPLE SHELL-PASS SHELL-AND-TUBE HEAT EXCHANGER WITH HELICAL BAFFLES
    • 单壳或多个壳体管和热交换器与螺旋槽
    • US20080190593A1
    • 2008-08-14
    • US11966256
    • 2007-12-28
    • Qiuwang WangQiuyang ChenDongjie ZhangMin ZengYining WuQiang Gao
    • Qiuwang WangQiuyang ChenDongjie ZhangMin ZengYining WuQiang Gao
    • F28F9/22B21D53/02B21D53/06
    • F28F9/22F28D7/1607F28F9/0131F28F2009/228Y10T29/4935Y10T29/49377
    • The present invention provides a single shell-pass shell-and-tube heat exchanger with helical baffles, where within a single pitch, the helical baffles are separated into inner and outer parts along the radial direction of the shell. In the central portion of the inner space of the shell, an inner non-continuous helical form is employed; in other portion outside the central portion, doughnut shaped helical baffles with continuous curved surfaces are arranged to form an outer continuous helical baffle, and the outer helical baffles are arranged to surround the inner helical baffles. Furthermore, the present invention relates to a multiple shell-pass shell-and-tube heat exchanger with helical baffles, in which complete continuous helical baffles are provided in shell-sides other than the inner shell-pass, while non-continuous helical baffles or other flow guide means are employed in the inner shell-pass. The present invention makes flow patterns of fluids on the shell side more desirable, leading to a reduced flow pressure drop, and mitigate fouling, thus the heat transfer rate is improved and the service life of the heat exchanger is increased. The present invention also provides two methods for manufacture of continuous helical baffles, which ensure the concentricity of the tube bundle holes on each continuous helical baffle so as to facilitate installation of heat exchange tube bundles.
    • 本发明提供了一种具有螺旋挡板的单壳式管壳式热交换器,其中在单个节距内,螺旋形挡板沿着壳体的径向分离成内部和外部部分。 在壳的内部空间的中心部分,采用内部非连续螺旋形式; 在中心部分外的其他部分,布置具有连续弯曲表面的环形螺旋挡板以形成外连续的螺旋挡板,并且外螺旋挡板被布置成围绕内螺旋挡板。 此外,本发明涉及一种具有螺旋挡板的多层壳式管壳式热交换器,其中在外壳侧以外的完全连续的螺旋挡板设置在内壳外,而非连续的螺旋挡板或 在内壳通道中采用其它流动引导装置。 本发明使得壳体上的流体流动模式更理想,导致流量压降降低,并且减轻结垢,从而提高了传热速率并提高了热交换器的使用寿命。 本发明还提供了制造连续螺旋挡板的两种方法,其确保每个连续螺旋挡板上的管束孔的同心度,以便于安装热交换管束。
    • 9. 发明授权
    • Wireless power transmitter with multilayer printed circuit
    • 带多层印刷电路的无线电力变送器
    • US08228027B2
    • 2012-07-24
    • US12578491
    • 2009-10-13
    • Qiang Gao
    • Qiang Gao
    • H02J7/00
    • H02J50/12H02J7/025
    • A wireless transmission system having a transmitter and receiver is described. In one embodiment, the transmitter includes an electronically-controlled switch controlled by a first pulse width modulation control circuit, the switch configured to pull current through a first inductor when the switch is closed, the first pulse width modulation control circuit outputting a PWM output signal to control the switch. A first feedback signal obtained from a control input of the switch. A second feedback signal obtained from a terminal of the inductor, wherein a control feedback signal is computed, at least in part, as a difference between the first feedback signal and the second feedback signal is provided to the first pulse width modulation control circuit. In one embodiment, the receiver includes a second pulse with modulation controller, the second pulse width modulation controller controlling the receiver switch to deliver a desired power from the receiving coil to a load.
    • 描述了具有发射机和接收机的无线传输系统。 在一个实施例中,发射机包括由第一脉冲宽度调制控制电路控制的电子控制开关,该开关被配置为当开关闭合时拉电流通过第一电感器,第一脉宽调制控制电路输出PWM输出信号 来控制开关。 从开关的控制输入端获得的第一反馈信号。 从电感器的端子获得的第二反馈信号,其中至少部分地计算控制反馈信号,因为第一反馈信号和第二反馈信号之间的差被提供给第一脉冲宽度调制控制电路。 在一个实施例中,接收机包括具有调制控制器的第二脉冲,第二脉冲宽度调制控制器控制接收器开关以将期望的功率从接收线圈传送到负载。