Apparatus and method for adaptive demodulation of PWM signal

Details Apparatus and method for adaptive demodulation of PWM signal Apparatus and method for adaptive demodulation of PWM signal

2006-12-08

2008-12-30

Lee, Benny (Department: 2817)

Demodulators

Pulse or interrupted continuous wave demodulator

Pulse width demodulator

C375S340000

Reexamination Certificate

active

07471143

ABSTRACT:
A demodulator for processing a PWM (pulse width modulation) signal includes a variable capacitor, a charging unit, a discharging unit, and a tuner. The charging and discharging units charge or discharge the variable capacitor depending on the PWM signal. The tuner determines a capacitance of the variable capacitor and a discharge current of the discharging unit for proper operation of the demodulator in various RF environments.

REFERENCES:
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patent: 5502419 (1996-03-01), Kawasaki et al.
patent: 5870000 (1999-02-01), Matsuda et al.
Korean Patent Application No. 1020030036580 to Shin, having Publication date of Dec. 16, 2004 (w/ English Abstract page).
Japanese Patent Application No. 04-307208 to Toru, having Publication date of Jun. 10, 1994 (w/ English Abstract page).
Japense Patent Application No. 10-353813 to Teruo, having Publication date of Jun. 16, 2000 (w/ English Abstract page).

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