SYMBOL BOUNDARY DETECTING CIRCUIT FOR RECEPTION FRAME AND METHOD FOR THE SAME

PROBLEM TO BE SOLVED: To provide a symbol boundary detecting circuit and a detection method which do not need multiplication and has a simple structure. SOLUTION: A digital signal sequence outputted by an A/D converter 1 is accumulated in a memory 20, subtraction is performed by an adder 12 between...

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Hauptverfasser: SASA ATSUSHI, TOMARU KENYA
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a symbol boundary detecting circuit and a detection method which do not need multiplication and has a simple structure. SOLUTION: A digital signal sequence outputted by an A/D converter 1 is accumulated in a memory 20, subtraction is performed by an adder 12 between a digital signal d(x) of the latest sample and a digital signal d(0) which is at a specified sample interval between itself and the digital signal obtained from the memory is performed by an adder 12, and the subtraction result is outputted as relative value data sequence. A decision part 50 decides a symbol boundary of the reception frame from the relative data sequence. COPYRIGHT: (C)2004,JPO&NCIPI