Invention Application
US20050220235A1 System and method for aligning internal transmit and receive clocks
审中-公开
用于对准内部发送和接收时钟的系统和方法
- Patent Title: System and method for aligning internal transmit and receive clocks
- Patent Title (中): 用于对准内部发送和接收时钟的系统和方法
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Application No.: US11130506Application Date: 2005-05-16
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Publication No.: US20050220235A1Publication Date: 2005-10-06
- Inventor: Donald Stark , Jun Kim , Stefanos Sidiropoulos
- Applicant: Donald Stark , Jun Kim , Stefanos Sidiropoulos
- Main IPC: H04J3/06
- IPC: H04J3/06 ; H04L7/00 ; H04L7/02

Abstract:
A system includes a master device connected to one or more slave devices via a channel, the channel communicating an externally generated first system clock towards the master device. A delay locked loop circuit receives the first system clock and a second phase feedback signal as inputs and generates a transmit clock signal. A phase offset circuit receives the transmit system clock and generates a phase shifted version of the transmit clock signal as a second system clock. A first phase detector receives a receive system clock and the transmit system clock and generates a first phase feedback signal. A delay element receives the first system clock and the first phase feedback signal and generates a delayed first system clock. A second phase detector receives the delayed first system clock and the second system clock and generates the second phase feedback signal.
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