The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 1995
Filed:
Nov. 29, 1993
Charles Eldering, Cantabria, ES;
Fernando H Martin, Portal, ES;
Alcatel N.V., , NL;
Abstract
A method for data recovery in burst mode communication systems that include a data signal having a burst preamble with a defined sequence of m bits, by sampling in a first sampling step (2) the burst preamble with n samples per bit carried out by n bit clocks with different phases, and providing a sampled burst preamble. The method is characterized in that it further comprises the steps of correlating in a correlation step (3) the sampled burst preamble with at least n representations of the defined sequence of m-bits of the burst preamble also sampled at n times per bit, each of said at least n representations being delayed one sample clock period with respect to a previous one of said at least n representations in order to obtain at least n time-shifted correlation results; determining in a decision step (4) an optimum phase clock and a first received data bit based on which of said at least n time-shifted correlation results has a greatest value; and regenerating in a regeneration step (5) a sampled data signal sampled at an optimum instant in accordance with the optimum phase clock.