Invention Grant
US06757024B2 Timing recovery apparatus and method for digital TV using envelope of timing error 有权
数字电视使用定时误差包络的定时恢复装置及方法

  • Patent Title: Timing recovery apparatus and method for digital TV using envelope of timing error
  • Patent Title (中): 数字电视使用定时误差包络的定时恢复装置及方法
  • Application No.: US09754356
    Application Date: 2001-01-05
  • Publication No.: US06757024B2
    Publication Date: 2004-06-29
  • Inventor: Tae Won Lee
  • Applicant: Tae Won Lee
  • Priority: KR2000/627 20000701
  • Main IPC: H04N9475
  • IPC: H04N9475
Timing recovery apparatus and method for digital TV using envelope of timing error
Abstract:
A timing recovery apparatus and method for a digital TV is disclosed. The timing recovery apparatus includes: a symbol synchronization unit for determining the bandwidth of a timing recovery loop in a plurality of steps according to a convergence degree; and a timing lock detector for detecting a lock using a reference value calculated by the envelope of a timing error, whereby the envelope of the timing error calculated according to a channel state is used as a reference value for thereby preventing a lock error and assuring a rapid and accurate convergence characteristic.
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