H - Electricity – 04 – B
Patent
H - Electricity
04
B
363/11
H04B 7/185 (2006.01) H04B 7/212 (2006.01) H04L 7/04 (2006.01) H04L 7/08 (2006.01)
Patent
CA 1255019
ABSTRACT OF THE DISCLOSURE: One of patterns (22) representative of instants along each TDMA frame is selected as a selected pattern (24) in response to a unique word detection pulse produced in a current frame. With the unique word detection pulse used as a write pulse (27), a memory (25) memorizes the selected pattern as a memorized pattern in a memory cell accessed by one of burst identifying flags which identify time slots in the current frame, respectively. The memorized pattern is produced as a read-out pattern (28) when accessed by the burst identifying flag which corresponds in a next succeeding frame to the above-mentioned one burst identifying flag. A calculator (31) produces offset representing patterns (32). Upon coincidence of each read-out pattern and one of the offset representing patterns, a comparator (33) produces a receive position predicting pulse predictive of a position of a unique word detection window in the next succeeding frame. The write pulse is preferably obtained by giving the unique word detection pulse a delay which is equal to a predetermined fraction of each time slot. The offset representing patterns represent the respective instants plus an offset which is equal to a duration of each frame minus a half of a duration of each unique word detection window.
483900
Takai Haruki
Tsuji Akira
Corporation Nec
Smart & Biggar
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