Open loop subcarrier synchronization system

Details Open loop subcarrier synchronization system Open loop subcarrier synchronization system

2008-01-15

2008-01-15

Lee, M. (Department: 2622)

Television

Synchronization

Automatic phase or frequency control

C348S537000, C375S371000, C370S516000

Reexamination Certificate

active

07319492

ABSTRACT:
A system and method for synchronizing signals having respective sub-carriers in a signal processing system. Various aspects of the present invention may comprise method steps and structure that receive a sampled signal with an associated sub-carrier. Various aspects may determine a phase of the sub-carrier and store an indication of such phase. Various aspects may generate and store a cropped version of the sampled signal. Various aspects may also store an indication of which samples were cropped from the sampled signal. Various aspects may produce a synchronization signal based on the sampled signal. Various aspects may read a cropped version of a sampled signal and an associated indication of phase. Various aspects may generate a restored sampled signal by adding samples to the read cropped version. Various aspects may, based on the synchronization signal and indication of phase, output the restored sampled signal aligned with a second sampled signal.

REFERENCES:
patent: 5784118 (1998-07-01), Yamauchi et al.
patent: 6690430 (2004-02-01), Takeshita

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