×

Device for amplitude adjustment and rectification made with MOS technology

  • US 6,788,792 B1
  • Filed: 06/24/1999
  • Issued: 09/07/2004
  • Est. Priority Date: 06/26/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. An amplitude adjustment device which adjusts an amplitude of an input signal to produce an output signal, comprising:

  • pulse-width modulation means for effecting pulse-width modulation on the input signal to produce a pulse-width modulated signal;

    demodulation means for demodulating the pulse-width modulated signal to produce the output signal;

    amplitude detection means for detecting a lower amplitude peak and an upper amplitude peak of said output signal; and

    control means for controlling a modulation factor of the pulse-width modulation based on a detection result of the amplitude detection means, wherein a period of said pulse-width modulated output signal is controlled based on a level therebetween said lower amplitude peak and an upper amplitude peak of said output signal.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×