H - Electricity – 03 – D
Patent
H - Electricity
03
D
329/3
H03D 3/18 (2006.01) H04L 1/20 (2006.01) H04L 7/10 (2006.01)
Patent
CA 1190610
AN ENERGY SYNCHRONIZED DEMODULATOR CIRCUIT Abstract An energy synchronized demodulator circuit is disclosed having a differential input to single ended converter coupled to a sync detect circuit which provides a detection signal in response to the modulated input signal. The detection signal is integrated over time, and a threshold detector provides an output when the detection signal exceeds a predetermined threshold level. A filter provides a constant level output signal indicative of the presence of valid data. Synchronized demodulation is provided by a correlation between phase or frequency in predetermined bit intervals of the detection signal. Synchronization is initiated by the initial burst of input signal energy received by the differential input.
416611
Dellande Brian W.
Wurzburg Henry
Gowling Lafleur Henderson Llp
Motorola Inc.
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