Invention Grant
- Patent Title: Single loop frequency and phase detection
- Patent Title (中): 单回路频率和相位检测
-
Application No.: US12022725Application Date: 2008-01-30
-
Publication No.: US08090064B2Publication Date: 2012-01-03
- Inventor: Hirotaka Tamura , Nikola Nedovic , William W. Walker
- Applicant: Hirotaka Tamura , Nikola Nedovic , William W. Walker
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Baker Botts L.L.P.
- Main IPC: H04L7/00
- IPC: H04L7/00

Abstract:
In one embodiment, a method includes receiving a data signal comprising a plurality of bits. The method further includes generating a clock signal. A plurality of samples is acquired from the data signal at a sampling rate determined by the clock signal and it is determined whether a transition point from a first bit in the plurality of bits to a second bit in the plurality of bits occurs within the plurality of samples. If it is determined that the transition point occurs within the plurality of samples, a state machine comprising a plurality of states transitions from a first state to a second state. If the second state indicates a non-zero amount of phase displacement between the clock signal and the data signal, the clock signal is adjusted to correlate with the data signal.
Public/Granted literature
- US20080192873A1 Single Loop Frequency and Phase Detection Public/Granted day:2008-08-14
Information query