Title:
【発明の名称】所定の着信データ系列用の位相検出器
Document Type and Number:
Japanese Patent JP2001510566
Kind Code:
A
Abstract:
Apparatus for measuring the phase of a predetermined incoming data sequence comprising, sampling means operable under control of a sampling clock to sample the incoming sequence at a frequency not equal to an integer multiple or divisor of the data rate of the sequence, test means operable to record a plurality of the samples in a time-ordered sequence, reference means operable to store a copy of at least a portion of the predetermined digital data sequence, comparison means operable to compare the recorded and stored sequences over a predetermined sequence length and to locate the position of an additional or omitted sample in the recorded sequence, calculation means operable to calculate the time of sampling of the additional sample or the time of sampling of the omitted sample relative to the sampling clock, and output means operable in response to the calculated time of sampling, to output a phase value indicative of the phase relative to the sampling clock, of the incoming sequence.
Inventors:
Green, thomas, debit
Mersick-Frogel, Janko
Sojat, Zorris Love
Mersick-Frogel, Janko
Sojat, Zorris Love
Application Number:
JP53267798A
Publication Date:
July 31, 2001
Filing Date:
February 02, 1998
Export Citation:
Assignee:
Symmetrico, Incorporated
International Classes:
G01R25/00; G01S1/00; G01S19/30; H04L25/49; H04L27/14; H04L27/22; (IPC1-7): G01S5/14; G01R25/00; H04L27/14; H04L27/22
Attorney, Agent or Firm:
Tsutomu Toyama (3 others)