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61. 发明授权

US08188774B1 Apparatus and methods for activation of an interface on an integrated circuit 有权
标题翻译：用于激活集成电路上的接口的装置和方法
公开(公告)号：US08188774B1
公开(公告)日：2012-05-29
申请号：US12833718
申请日：2010-07-09
申请人： Gopi Krishnamurthy , Binh Ton , Ning Xue , Tim Tri Hoang , Michael Menghui Zheng , Weiqi Ding
发明人： Gopi Krishnamurthy , Binh Ton , Ning Xue , Tim Tri Hoang , Michael Menghui Zheng , Weiqi Ding
IPC分类号： H03L7/00
CPC分类号： H03K19/1774
摘要： One embodiment relates to a method for activating an interface on an integrated circuit while a core of the integrated circuit is becoming operational. An offset calibration for a transceiver channel is performed by physical media attachment circuitry. A transmitting frequency is locked onto by a transmitter phase-locked loop for the transceiver channel, and a receiving frequency is locked onto by a receiver phase-locked loop for the transceiver channel. Subsequently, the interface is activated while a core component of the integrated circuit is becoming operational. Another embodiment pertains to an integrated circuit which includes transceiver channel circuits, an interface processor, and a reset control state machine. Another embodiment relates to control circuitry including a reset control state machine, transceiver channel circuits, a channel input steering multiplexer, and a channel output steering multiplexer. Other embodiments, aspects and features are also disclosed.
摘要翻译：一个实施例涉及在集成电路的核心变得可操作时激活集成电路上的接口的方法。收发器通道的偏移校准由物理介质连接电路执行。传输频率被收发器通道的发射机锁相环锁定，并且接收频率被收发信机的接收机锁相环锁定。随后，当集成电路的核心部件变得可操作时，该接口被激活。另一实施例涉及包括收发信道电路，接口处理器和复位控制状态机的集成电路。另一实施例涉及包括复位控制状态机，收发信道电路，信道输入转向多路复用器和信道输出转向多路复用器的控制电路。还公开了其它实施例，方面和特征。

62. 发明申请

US20110221477A1 HIGH-SPEED DIFFERENTIAL COMPARATOR CIRCUITRY WITH ACCURATELY ADJUSTABLE THRESHOLD 有权
标题翻译：具有精确可调节阈值的高速差分比较器电路
公开(公告)号：US20110221477A1
公开(公告)日：2011-09-15
申请号：US12722319
申请日：2010-03-11
申请人： Weiqi Ding , Mingde Pan
发明人： Weiqi Ding , Mingde Pan
IPC分类号： H03K5/22 , H03L5/00
CPC分类号： H03K3/356139 , H03K5/08
摘要： A high-speed differential comparator circuit is provided with an accurately adjustable threshold voltage. Differential reference voltage signals are provided to control the threshold voltage of the comparator. The common mode voltage of the reference signals preferably tracks the common mode voltage of the differential high-speed serial data signal being processed by the comparator circuit.
摘要翻译：高速差分比较器电路具有精确可调的阈值电压。提供差分参考电压信号来控制比较器的阈值电压。参考信号的共模电压优选地跟踪由比较器电路正在处理的差分高速串行数据信号的共模电压。

63. 发明授权

US07977984B1 High-speed charge pump circuits 有权
标题翻译：高速电荷泵电路
公开(公告)号：US07977984B1
公开(公告)日：2011-07-12
申请号：US11871994
申请日：2007-10-13
申请人： Lewelyn Mark D'Souza , Weiqi Ding
发明人： Lewelyn Mark D'Souza , Weiqi Ding
IPC分类号： H03L7/06
CPC分类号： H03L7/0807 , H03L7/0816 , H03L7/0896
摘要： A charge pump circuit includes at least one switching transistor and a level-shifter. The level-shifter has a cross-coupled pair of transistors. The level-shifter shifts a voltage of a first input signal to generate a level-shifted signal. The level-shifted signal controls a conductive state of the switching transistor to regulate an output voltage of the charge pump. A feedback loop circuit includes a detector and a charge pump. The detector compares an input signal to a feedback signal to generate first and second output signals. The charge pump includes at least two thin-oxide switching transistors and a level-shifter in another embodiment. The level-shifter shifts a voltage of the first output signal of the detector to generate a level-shifted signal. The two switching transistors are driven by the level-shifted signal and the second output signal of the detector to regulate an output voltage of the charge pump.
摘要翻译：电荷泵电路包括至少一个开关晶体管和电平转换器。电平移位器具有交叉耦合的晶体管对。电平移位器移位第一输入信号的电压以产生电平移位信号。电平移位信号控制开关晶体管的导通状态以调节电荷泵的输出电压。反馈回路电路包括检测器和电荷泵。检测器将输入信号与反馈信号进行比较，以产生第一和第二输出信号。电荷泵在另一实施例中包括至少两个薄氧化物开关晶体管和电平转换器。电平移位器移动检测器的第一输出信号的电压以产生电平移位信号。两个开关晶体管由电平移位信号和检测器的第二输出信号驱动，以调节电荷泵的输出电压。

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