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    • 4. 发明授权
    • Clock-and-data-recovery system having a multi-phase clock generator for one or more channel circuits
    • 具有用于一个或多个信道电路的多相时钟发生器的时钟和数据恢复系统
    • US07599457B2
    • 2009-10-06
    • US11199287
    • 2005-08-08
    • Phillip JohnsonZheng ChenBarry Britton
    • Phillip JohnsonZheng ChenBarry Britton
    • H04L7/02
    • H04L7/0338H03L7/0812
    • In one embodiment of the invention, a clock-and-data-recovery (CDR) system has a multi-phase clock generator that generates a plurality of phase-offset clock signals and one or more channel circuits, each receiving a (different) input data signal and all of the phase-offset clock signals and generates an output data stream and a recovered clock signal. Each channel circuit has a plurality of data registers (e.g., flip-flops), each receiving the input data signal at its clock input port and a different one of the phase-offset clock signals at its data input port, such that the flip-flop is triggered at each (rising) edge in the input data signal. The channel circuit processes the outputs from the different flip-flops to select an appropriate phase-offset clock signal for use in sampling the input data signal to generate the output data stream, where the recovered clock signal is generated from the selected phase-offset clock signal.
    • 在本发明的一个实施例中,时钟和数据恢复(CDR)系统具有产生多个相位偏移时钟信号的多相时钟发生器和一个或多个信道电路,每个信道电路接收(不同的)输入 数据信号和所有相位偏移时钟信号,并产生输出数据流和恢复的时钟信号。 每个通道电路具有多个数据寄存器(例如,触发器),每个数据寄存器在其时钟输入端口接收输入数据信号,并在其数据输入端口接收不同的相位偏移时钟信号, 触发器在输入数据信号的每个(上升沿)触发。 通道电路处理来自不同触发器的输出以选择合适的相位偏移时钟信号,以用于对输入数据信号进行采样以产生输出数据流,其中从所选择的相位偏移时钟产生恢复的时钟信号 信号。
    • 5. 发明申请
    • Clock-and-data-recovery system having a multi-phase clock generator for one or more channel circuits
    • 具有用于一个或多个信道电路的多相时钟发生器的时钟和数据恢复系统
    • US20070030936A1
    • 2007-02-08
    • US11199287
    • 2005-08-08
    • Phillip JohnsonZheng ChenBarry Britton
    • Phillip JohnsonZheng ChenBarry Britton
    • H04L7/00
    • H04L7/0338H03L7/0812
    • In one embodiment of the invention, a clock-and-data-recovery (CDR) system has a multi-phase clock generator that generates a plurality of phase-offset clock signals and one or more channel circuits, each receiving a (different) input data signal and all of the phase-offset clock signals and generates an output data stream and a recovered clock signal. Each channel circuit has a plurality of data registers (e.g., flip-flops), each receiving the input data signal at its clock input port and a different one of the phase-offset clock signals at its data input port, such that the flip-flop is triggered at each (rising) edge in the input data signal. The channel circuit processes the outputs from the different flip-flops to select an appropriate phase-offset clock signal for use in sampling the input data signal to generate the output data stream, where the recovered clock signal is generated from the selected phase-offset clock signal.
    • 在本发明的一个实施例中,时钟和数据恢复(CDR)系统具有产生多个相位偏移时钟信号的多相时钟发生器和一个或多个信道电路,每个信道电路接收(不同的)输入 数据信号和所有相位偏移时钟信号,并产生输出数据流和恢复的时钟信号。 每个通道电路具有多个数据寄存器(例如,触发器),每个数据寄存器在其时钟输入端口接收输入数据信号,并在其数据输入端口接收不同的相位偏移时钟信号, 触发器在输入数据信号的每个(上升沿)触发。 通道电路处理来自不同触发器的输出以选择合适的相位偏移时钟信号,以用于对输入数据信号进行采样以产生输出数据流,其中从所选择的相位偏移时钟产生恢复的时钟信号 信号。