Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Patent
1993-11-04
1996-06-11
Coles, Sr., Edward L.
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
375354, 340825, 3701051, H04L 700, H04J 306
Patent
active
055263798
ABSTRACT:
In the event that a radio pager falls into frame async while receiving information, an appropriate code search mode is desirably selected. Firstly, a controller of the pager checks to see if a bit sync indicating signal obtained from a bit synchronizer demonstrates bit sync. If the bit sync indicating signal indicates bit synchronization, the controller selects an operation mode for searching for synchronization code (SC). On the other hand, if the bit sync indicating signal indicates bit async, the controller selects a preamble code search mode. Accordingly, in the case where the pager becomes out of synchronism and immediately thereafter restores same during information acquisition, the pager is able to successfully obtain subsequent information by means of very simplified arrangement.
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Coles Sr. Edward L.
NEC Corporation
Nguyen Madeleine Anh-Vinh
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