×

Timing generating apparatus with self-calibrating capability

  • US 6,304,119 B1
  • Filed: 12/27/2000
  • Issued: 10/16/2001
  • Est. Priority Date: 12/27/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A timing generating apparatus comprising:

  • a master timing module adapted to receive an external reference clock and to generate a coarse timing pulse signal therefrom;

    a slave timing module coupled electrically to said master timing module so as to receive the coarse timing pulse signal therefrom, and operable so as to generate a fine timing pulse signal from the coarse timing pulse signal; and

    a calibration module coupled electrically to said master timing module and said slave timing module, said calibration module receiving the coarse timing pulse signal and the fine timing pulse signal, determining a phase difference value between the coarse timing pulse signal and the fine timing pulse signal, and generating a phase compensation signal corresponding to difference between the phase difference value and a predetermined phase difference value;

    said slave timing module including a delay control unit that receives the phase compensation signal from said calibration module, and that generates a delay voltage signal corresponding to the phase compensation signal, and a voltage-controlled delay unit that receives the coarse timing pulse signal and the delay voltage signal, and that introduces a phase delay corresponding to the delay voltage signal into the coarse timing pulse signal so as to generate the fine timing pulse signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×