Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Patent
1998-06-17
1999-11-09
Bocure, Tesfaldet
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
375376, 375355, H04L 700
Patent
active
059828323
ABSTRACT:
A poly-phase filter and an apparatus which compensates for timing error and a method for implementing such compensation are provided. The poly-phase filter can compensate for the timing and phase error of an input signal which occur in a time period which is shorter than the sampling period by obtaining impulse responses of a mother filter having a pass band of (Fs/2n) where Fs is the sampling frequency and n is a positive number, re-sampling the obtained impulse responses using a plurality of clock signals having a phase difference of (2*.pi.
s), and selecting one filter among the filter set having group delays corresponding to the detected phase, and filtering the input signal using the poly-phase filter constituted by a series of filter sets adopting the re-sampled respective impulse responses as transmitting characteristics of the element filters.
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Bocure Tesfaldet
Samsung Electronics Co,. Ltd.
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