Title:
FSK DEMODULATION METHOD AND SYSTEM
Document Type and Number:
Japanese Patent JP2002335292
Kind Code:
A
Abstract:
To provide an FSK demodulation technology that can revise a level of noise amplitude to be eliminated depending on an amplitude level of an input signal.
The FSK demodulation system decides two values with '0' inbetween, that is, a positive level shift and a negative level shift, and compares a level of the input signal with the positive level shift and the negative level shift to demodulate the input signal on the basis of the result of comparison.
Inventors:
YOSHIDA MAKOTO
Application Number:
JP2001137261A
Publication Date:
November 22, 2002
Filing Date:
May 08, 2001
Export Citation:
Assignee:
NEC MICROSYSTEMS LTD
International Classes:
H04B1/10; H04L27/14; (IPC1-7): H04L27/14; H04B1/10
Attorney, Agent or Firm:
Yosuke Goto (1 person outside)