×

Overload protection for look-ahead delta sigma modulators

  • US 7,081,843 B2
  • Filed: 03/25/2005
  • Issued: 07/25/2006
  • Est. Priority Date: 07/19/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of anticipating quantizer overload of a look-ahead delta sigma modulator, the method comprising:

  • determining a likelihood of quantizer overload of the look-ahead delta sigma modulator from a closed loop response of the look-ahead delta-sigma modulator to a closed loop feedback signal, wherein the look-ahead delta-sigma modulator includes a gain stage substitute for a quantizer, wherein the look-ahead delta sigma modulator has a look-ahead depth of n1 and n1 is a positive integer greater than one.

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