Patent ID: 7884667
Filing Date: 2011-02-08
Classification: H03F

Abstract:
1. A pulse area modulation method for amplifying an input signal, whose values are f(t 1 ), f(t 2 ), . . . f(t 2 ) at times t 1 , t 2 , . . . t n , respectively, at which the input signal is sampled for a pulse modulation, the values of the input signal having a characteristic that if the input signal were modulated by the pulse width modulation (PWM), the pulse width modulated signal would have a waveform with a height of 1 and with widths of x 1 , x 2 , . . . x n , wherein x k is proportional to f(t k ) (1<=k<=n), wherein in case the values of the input signal having a minimum value of m and a maximum value of M are partitioned by threshold values Th if the value of the input signal at tk satisfies an inequality: f(t if the value of the input signal at tk satisfies an inequality: Th if the value of the input signal at t wherein 1<=H