Digital pseudo continuous tone detector

Details Digital pseudo continuous tone detector Digital pseudo continuous tone detector

G - Physics

06

F

354/52

G06F 3/16 (2006.01) H03D 3/00 (2006.01) H03G 3/00 (2006.01) H04Q 7/16 (2006.01)

Patent

CA 1159564

Abstract Method and apparatus for sampling input signals of different frequencies and providing a detect signal when the input frequency has a predetermined value suitable for use as a tone decoder for continuous tone controlled squelch systems. The method utilizes digital pseudo con- tinuous correlation tone detection, and includes sample matrix limiting to provide rapid reverse burst turnoff, as well as background detection to avoid adjacent channel reverse burst turnoff falsing.

368664

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