Method and system for indicating zero-crossings of a signal...

Details Method and system for indicating zero-crossings of a signal... Method and system for indicating zero-crossings of a signal...

2005-01-31

2008-11-04

Tse, Young T. (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S346000, C704S213000

Reexamination Certificate

active

07447279

ABSTRACT:
A device, method, and computer readable medium are used in connection with providing an indication of zero crossings corresponding to a signal. The signal (113) is received. Noise is removed from the signal (103). In response to the signal with noise removed (115), pairs of points and a time value corresponding to each point are determined (105), wherein the points of each pair are proximate to a predetermined change in an amplitude of the signal. In response to the pairs and the corresponding time values (117), a zero crossing time is determined for each pair (107). A variation in the plurality of zero crossing times (119) is corrected (109). A signal (123) or indication representative of the corrected zero crossing times is output.

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