Symbol timing recovery apparatus used with a VSB-type...

Details Symbol timing recovery apparatus used with a VSB-type... Symbol timing recovery apparatus used with a VSB-type...

2005-08-23

2009-12-15

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S270000, C329S357000, C455S204000

Reexamination Certificate

active

07634029

ABSTRACT:
A symbol timing recovery apparatus used with a VSB-type receiver and a method of the same. In order for the symbol timing recovery, error information is generated and used utilizing a band edge component maximization (BECM) of a frequency band as well as an upper frequency band. Therefore, the symbol timing recovery can be more effectively achieved even when the upper frequency band is damaged due to multi-path components. Also, efficiency of the overall timing recovery can be improved by using the lower frequency band as well as the upper frequency band of the received signal in performing the symbol timing recovery. As a result, deterioration of the receiving system including the symbol timing recovery apparatus can be prevented.

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European Search Report.
Yongchul Song, Low-Jitter Digital Timing Recovery Techniques for CAP-Based VDSL Applications, IEEE Journal of Solid-State Circuits, vol. 38, No. 10, Oct. 2003, pp. 1649-1656.
Korean Office Action dated Apr. 24, 2006 issued in KR 2004-67499.
Chinese Office Action dated Sep. 5, 2008 issued in CN 2005-10093333.4.

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