Unit for determining the sampling phase

Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data

Reexamination Certificate

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C375S365000, C370S514000

Reexamination Certificate

active

10642547

ABSTRACT:
The invention relates to an apparatus and a method for ascertaining and correcting the optimum sampling time for an oversampled input bit stream. This involves feeding the data bit blanked with the current sampling phase into the comparative sequence and using the data bit to ascertain a new, corrected sampling phase. This decision-based approach enables the sampling phase to be continuously corrected.

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Meyr, et al.: “Digital Communications Receivers-Synchronization, Channel Estimation, and Signal Processing”, Wiley & Sons, ISBN 0-471-50275-8, New York, NY, USA, XP-002246463; pp. 296-297, Oct. 20, 1997.
Qureshi, S. U. H. et al.: “Timing Recovery for Equalized Partial-Response Systems”, IEEE Transactions on Communications, vol. 24, No. 12, Dec. 1976, p. 1326-1331.
Meyr, H. et al.: “Digital Communications Receviers. Synchronization, Channel Estimation, and Signal Processing”, Siley & Sons, pp. 296-297, Oct. 20, 1997.
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