Method of determining a syschronous signal pattern and method of

Details Method of determining a syschronous signal pattern and method of Method of determining a syschronous signal pattern and method of

1995-06-07

1996-07-30

Chin, Stephen

Pulse or digital communications

Synchronizers

Frequency or phase control using synchronizing signal

375343, 369 59, H04L 700, H04L 2706

Patent

active

055419607

ABSTRACT:
Disclosed are methods of determining and recording a synchronous signal pattern on a medium and also an information recording/reproducing device thereof. The method of determining an optimum synchronous signal pattern includes detecting correlation properties of a VFO pattern and a synchronous signal pattern with a matching filter by inputting the respective samples of the patterns to the matching filter; and determining the sample exhibiting an excellent correlation property as the synchronous signal pattern among the samples. The information recording method includes forming information by sequencing the VFO pattern, the determined synchronous signal pattern and (2, 7)-modulated data; and recording the information on a recording medium. The information recording/reproducing device includes a device for recording, on a recording medium, the information configured by sequencing the VFO pattern, the synchronous signal pattern for identifying the head of information and (2, 7)-modulated data; and a device for reproducing the information. The VFO pattern consists of a repetitive pattern of "0000" or "100" or "010", and the synchronous signal pattern is a binary signal pattern.

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