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    • 11. 发明申请
    • METHOD AND APPARATUS FOR DETERMINING TRANSMISSION POWER OF A SECONDARY TRANSMITTER IN A HIERARCHICAL SPECTURM SHARING SYSTEM
    • 用于确定分层分支系统中二次发射机传输功率的方法和装置
    • US20130344913A1
    • 2013-12-26
    • US13995845
    • 2011-09-16
    • Chaofeng LiLei JiangMing Lei
    • Chaofeng LiLei JiangMing Lei
    • H04W52/24
    • H04W52/241H04W52/226H04W52/244H04W52/34
    • The present invention provides a method and apparatus for determining a transmission power of a secondary transmitter in a hierarchical spectrum sharing system. The method can comprise steps of obtaining channel quality information on a primary link from at least one primary receiver within a transmission range of the secondary transmitter; and determining the transmission power for the secondary transmitter based on the channel quality information, wherein the transmission power is matched with the channel quality indicated by the channel quality information. According to the embodiments of the present invention, a power control scheme is applied to the secondary transmitter based on the channel quality information on the primary link. In such a way, the secondary transmitter' throughput can be improved with controllable rate loss to the primary receiver and accordingly the spectrum efficiency for the whole system can be further upgraded.
    • 本发明提供一种用于确定分层频谱共享系统中的次发射机的发射功率的方法和装置。 该方法可以包括以下步骤:从次发射机的传输范围内的至少一个主接收机获得主链路上的信道质量信息; 以及基于所述信道质量信息确定所述辅助发射机的发射功率,其中所述发射功率与由所述信道质量信息指示的信道质量匹配。 根据本发明的实施例,基于主链路上的信道质量信息,将次级发射机应用功率控制方案。 以这种方式,可以通过对主接收机的可控的速率损失来提高次级发射机的吞吐量,因此可以进一步升级整个系统的频谱效率。
    • 20. 发明授权
    • Method and apparatus for decoding bar code symbols using ratio analysis
of module size
    • 使用模块尺寸比率分析对条形码符号进行解码的方法和装置
    • US5767497A
    • 1998-06-16
    • US759402
    • 1996-12-04
    • Ming Lei
    • Ming Lei
    • G06K7/10G06K7/14
    • G06K7/1486G06K7/14
    • A method and apparatus for decoding bar code symbols using an analysis of the ratios of the module size for the bars and spaces of the bar code. The invention is applicable to any bar code having one or more nominal widths in the bars and spaces, and is particularly useful in bar codes having multiples widths in the specification for the bar code and in situations where the bar code signal has a low signal-to-noise ratio, or is degraded because of a damaged, smudged, or dirty bar code, or where the bar code is read at less than the optimum angle. The invention identifies mis-decoded characters and uses adaptive techniques to decode characters previously non-decodable or mis-decoded by standard methods, thereby improving the decode rate as compared to prior techniques. The decoding rate is improved without having to re-scan the bar code for a new signal, thereby making the invention particularly useful for high-speed or one-pass decoding operations.
    • 使用对条形码的条形和空格的模块尺寸的比率的分析来解码条形码符号的方法和装置。 本发明适用于在条形和空格中具有一个或多个标称宽度的任何条形码,并且特别适用于在条形码规范中具有倍数宽度的条形码,并且条形码信号具有低信噪比的情况下, 或者由于损坏,污迹或脏的条形码,或条形码在小于最佳角度读取的条件下降低。 本发明识别错误解码的字符并且使用自适应技术来解码先前不可解码或通过标准方法错误解码的字符,从而与现有技术相比提高了解码速率。 解码速率得到提高,而不需要重新扫描新信号的条形码,从而使本发明对于高速或一次解码操作特别有用。