公开(公告)号：US08531216B1

公开(公告)日：2013-09-10

申请号：US13557172

申请日：2012-07-24

申请人： Jin-Xiao Wu ,  Heng-Chih Lin ,  Yi-Bin Hsieh

发明人： Jin-Xiao Wu ,  Heng-Chih Lin ,  Yi-Bin Hsieh

IPC分类号： H03L7/00

CPC分类号： H03J7/04

摘要： The present invention discloses an electronic apparatus. The electronic apparatus comprises a reference oscillator, for generating a reference clock; a first communications module, comprising a first auto frequency control unit, for detecting a first frequency offset between the first communications module and a first communication device and generating a first detecting result; and a first frequency synthesizer, for adjusting the reference clock according to the first detecting result, to generate a first baseband clock; and a second communications module, comprising a second auto frequency control unit, for detecting a second frequency offset between the second communications module and a second communication device and generating a second detecting result; a second frequency synthesizer, for receiving and outputting the first baseband clock; and a compensation unit, for adjusting the first baseband clock according to the first detecting result and the second detecting result, to generate a second baseband clock.

摘要翻译： 本发明公开了一种电子设备。 电子设备包括用于产生参考时钟的参考振荡器; 第一通信模块，包括第一自动频率控制单元，用于检测第一通信模块和第一通信设备之间的第一频率偏移并产生第一检测结果; 以及第一频率合成器，用于根据第一检测结果调整参考时钟，以产生第一基带时钟; 以及第二通信模块，包括第二自动频率控制单元，用于检测所述第二通信模块和第二通信设备之间的第二频率偏移并产生第二检测结果; 第二频率合成器，用于接收和输出第一基带时钟; 以及补偿单元，用于根据第一检测结果和第二检测结果调整第一基带时钟，以产生第二基带时钟。

公开(公告)号：US20080065927A1

公开(公告)日：2008-03-13

申请号：US11530878

申请日：2006-09-11

申请人： Jin-Xiao Wu

发明人： Jin-Xiao Wu

IPC分类号： G06F1/00

CPC分类号： G06F1/12

摘要： A circuit for controlling operations of a Universal Serial Bus (USB) device includes a frequency converter, a USB PHY, and a USB core. The circuit is provided with a first clock having a first frequency, where the first frequency is not a factor of a USB specified frequency. The frequency converter converts the first clock into a basic clock having a basic frequency, where the basic frequency is a factor of the USB specified frequency. The USB PHY is coupled to the frequency converter and operates based upon the basic clock and allows the USB device to communicate with an external USB apparatus. The USB core is coupled to the USB PHY and controls parallel data transferred between the USB core and the USB PHY.

摘要翻译： 用于控制通用串行总线（USB）设备的操作的电路包括变频器，USB PHY和USB内核。 该电路设置有具有第一频率的第一时钟，其中第一频率不是USB指定频率的因子。 变频器将第一时钟转换成具有基本频率的基本时钟，其中基本频率是USB指定频率的因子。 USB PHY耦合到变频器并基于基本时钟进行操作，并允许USB设备与外部USB设备进行通信。 USB内核耦合到USB PHY，并控制在USB内核和USB PHY之间传输的并行数据。