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    • 1. 发明申请
    • Dual antenna communication methods and systems
    • 双天线通信方法和系统
    • US20060093049A1
    • 2006-05-04
    • US11252443
    • 2005-10-18
    • Michael JensenMichael RiceNorman NelsonAdam Anderson
    • Michael JensenMichael RiceNorman NelsonAdam Anderson
    • H04L27/00
    • H04L1/0618
    • A dual antenna transmitter includes a diversity encoding module that receives a data stream and provides a pair of encoded data streams selected to cause generation of overlapping symbols that provide substantially constant signal power to a receiver when the first and second antennas are unobstructed from the receiver. The diversity encoding module may compensate for the state retention of standard modulators thereby enabling the implementation of the Alamouti transmit diversity scheme. A wireless receiver capable of receiving data transmitted from the aforementioned transmitter includes a metric extraction module that repetitively extracts a metric from a transmitted signal at a selected rate to provide a first and a second metric stream, the first metric stream comprising data that is time offset from data in the second metric stream, the time offset corresponding to a differential time delay to the receiver for symbols emitted from the transmitter antennas.
    • 双天线发射机包括分集编码模块,其接收数据流并提供一对编码数据流,所述编码数据流被选择为当所述第一和第二天线从所述接收机畅通时,向所述接收机提供基本恒定的信号功率的重叠符号的产生。 分集编码模块可以补偿标准调制器的状态保持,从而实现Alamouti发射分集方案。 能够接收从上述发射机发送的数据的无线接收机包括度量提取模块,其以所选择的速率从传输的信号重复提取度量,以提供第一和第二度量流,所述第一度量流包括时间偏移量的数据 从第二度量流中的数据,对应于从发射机天线发射的符号到接收机的差分时间延迟的时间偏移。
    • 10. 发明申请
    • Self Supported Fluid Filter
    • 自支撑流体过滤器
    • US20080066437A1
    • 2008-03-20
    • US11574966
    • 2005-09-16
    • Charles SolbergAdam Anderson
    • Charles SolbergAdam Anderson
    • B29C65/08B32B37/00B32B37/12
    • B01D46/10B01D46/0001B01D46/521B01D2265/04Y10S55/05
    • A self-supported cylindrical corrugated filter (30) having arcuate side walls (34, 36) having over-lapping folded flaps which are non-adhesively joined i.e. by ultrasonic welding to provide a self-supported filter and a method of preparing the self-supported cylindrical corrugated air filter by using an ultrasonically weldable air filter blank that is corrugated to form a substantially cylindrical air filter (30) having two arcuate side walls (34, 36) with a plurality of open corrugation ends, folding the open corrugation ends to provide overlapping side wall flaps, and ultrasonically welding the overlapping side wall flaps to provide the self-supported cylindrical corrugated air filter and to provide the ultrasonically weldable air filter blank that can be corrugated.
    • 一种具有弧形侧壁(34,36)的自支撑圆柱形波纹状过滤器(30),其具有超研磨折叠的折片,其非粘合地接合,即通过超声波焊接以提供自支撑的过滤器和制备自支撑的过滤器的方法, 支撑的圆柱形波纹空气过滤器通过使用波纹状的超声波焊接空气过滤器坯料,以形成具有两个具有多个开口波纹端部的两个弓形侧壁(34,36)的基本上圆柱形的空气过滤器(30),将开放的波纹端部折叠成 提供重叠的侧壁襟翼,并超声焊接重叠的侧壁襟翼,以提供自支撑的圆柱形波纹空气过滤器,并提供可波纹的超声波焊接空气过滤器毛坯。