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    • 4. 发明授权
    • Digitally controlled oscillator
    • 数字控制振荡器
    • US08519801B2
    • 2013-08-27
    • US13210280
    • 2011-08-15
    • Yen-Horng ChenWen-Chang LeeAugusto MarquesXiaochuan Guo
    • Yen-Horng ChenWen-Chang LeeAugusto MarquesXiaochuan Guo
    • H03B5/12
    • H03B5/1228H03B5/1215H03B5/1265H03J2200/10
    • A digitally controlled oscillator is provided. The digitally controlled oscillator includes a pair of transistors cross-coupled to each other, a switched capacitor array coupled to the pair of transistors and a plurality of frequency tracking units coupled to the pair of transistors. The pair of transistors provides an output signal. The switched capacitor array tunes a frequency of the output signal. The frequency tracking units tune the frequency of the output signal to a target frequency. At least one of the frequency tracking units is capable of selectively providing a first capacitance and a second capacitance. A tuning resolution of the frequency tracking unit is determined by a difference between the first and second capacitances.
    • 提供数字控制振荡器。 数字控制振荡器包括彼此交叉耦合的一对晶体管,耦合到该对晶体管的开关电容器阵列和耦合到该对晶体管的多个频率跟踪单元。 该对晶体管提供输出信号。 开关电容阵列调节输出信号的频率。 频率跟踪单元将输出信号的频率调谐到目标频率。 频率跟踪单元中的至少一个能够选择性地提供第一电容和第二电容。 频率跟踪单元的调谐分辨率由第一和第二电容之间的差确定。
    • 7. 发明申请
    • METHOD AND DEVICE FOR TRANSFERRING MULTI-STANDARD RADIO SERVICE DATA
    • 用于传输多标准无线电服务数据的方法和设备
    • US20110286540A1
    • 2011-11-24
    • US13204149
    • 2011-08-05
    • Yajun JIANGXiaochuan GuoYingjiu Xia
    • Yajun JIANGXiaochuan GuoYingjiu Xia
    • H04L27/00
    • H04W88/10
    • The embodiments of the present invention relate to a method and a device for transferring radio service data. The method includes: designing a radio service frame timing mechanism and/or a rule of filling IQ data for a plurality of standards; configuring frame timing mechanisms corresponding to various services according to the designed radio service frame timing mechanism and/or the rule of filling IQ data for a plurality of standards; and transmitting multi-standard radio service data according to the configured frame timing information and/or methods of mapping IQ containers. The device includes a determination unit, a configuring unit and a transfer unit. Thus, uniform transmission of radio IQ data and frame synchronization for different standards may be enabled via a common radio interface between a Radio Equipment Controller (REC) and a Radio Equipment (RE).
    • 本发明的实施例涉及一种用于传送无线电服务数据的方法和设备。 该方法包括:设计无线电服务帧定时机制和/或填充多个标准的IQ数据的规则; 根据设计的无线服务帧定时机制配置与各种业务对应的帧定时机制和/或填充多个标准的IQ数据的规则; 以及根据配置的帧定时信息和/或映射IQ容器的方法来发送多标准无线业务数据。 该装置包括确定单元,配置单元和传送单元。 因此,可以通过无线电设备控制器(REC)和无线电设备(RE)之间的公共无线电接口来实现用于不同标准的无线电IQ数据和帧同步的均匀传输。
    • 8. 发明授权
    • Method and device for transferring multi-standard radio service data
    • 用于传输多标准无线电业务数据的方法和装置
    • US08018910B2
    • 2011-09-13
    • US11577727
    • 2006-12-15
    • Yajun JiangXiaochuan GuoYingjiu Xia
    • Yajun JiangXiaochuan GuoYingjiu Xia
    • H04B7/216
    • H04W88/10
    • The embodiments of the present invention relate to a method and a device for transferring radio service data. The method includes: designing a radio service frame timing mechanism and/or a rule of filling IQ data for a plurality of standards; configuring frame timing mechanisms corresponding to various services according to the designed radio service frame timing mechanism and/or the rule of filling IQ data for a plurality of standards; and transmitting multi-standard radio service data according to the configured frame timing information and/or methods of mapping IQ containers. The device includes a determination unit, a configuring unit and a transfer unit. Thus, uniform transmission of radio IQ data and frame synchronization for different standards may be enabled via a common radio interface between a Radio Equipment Controller (REC) and a Radio Equipment (RE).
    • 本发明的实施例涉及一种用于传送无线电服务数据的方法和设备。 该方法包括:设计无线电服务帧定时机制和/或填充多个标准的IQ数据的规则; 根据设计的无线服务帧定时机制配置与各种业务相对应的帧定时机制和/或填充多个标准的IQ数据的规则; 以及根据配置的帧定时信息和/或映射IQ容器的方法来发送多标准无线业务数据。 该装置包括确定单元,配置单元和传送单元。 因此,可以通过无线电设备控制器(REC)和无线电设备(RE)之间的公共无线电接口来实现用于不同标准的无线电IQ数据和帧同步的均匀传输。
    • 10. 发明授权
    • CMOS imager having asynchronous pixel readout in order of pixel illumination
    • CMOS成像器具有像素照明顺序的异步像素读出
    • US06660989B2
    • 2003-12-09
    • US10190785
    • 2002-07-08
    • Xiaochuan GuoZhiliang Julian ChenJohn G. Harris
    • Xiaochuan GuoZhiliang Julian ChenJohn G. Harris
    • H04N5335
    • H04N5/341
    • This CMOS imager represents illuminance in the time domain. Once per frame, each pixel outputs a pulse after a time proportional to the illuminance on that pixel. Therefore, the illuminance on that pixel is related to the time difference between its pulse event and global reset of the imager. A counter reports the times of these pulse events in a digital format. Thus no analog to digital converter is necessary. This imager enables easy computation of pixel intensity histograms. Frame data is stored in pixel intensity order using row and column arbiters to produce a pixel address. Because each pixel has its own exposure time, the imager has a wide dynamic range of 120 dB. This imager has low power dissipation and avoids the noise and mismatch problems of prior complicated analog readout circuits.
    • 该CMOS成像器表示时域中的照度。 每帧一次,每个像素在与该像素上的照度成比例的时间之后输出脉冲。 因此,该像素的照度与其脉冲事件与成像器的全局复位之间的时间差有关。 计数器以数字格式报告这些脉冲事件的时间。 因此,不需要模数转换器。 该成像器能够容易地计算像素强度直方图。 帧数据使用行和列仲裁器以像素强度顺序存储以产生像素地址。 因为每个像素都有自己的曝光时间,所以成像器具有120 dB的宽动态范围。 该成像器具有低功耗,并避免了以前复杂的模拟读出电路的噪声和失配问题。