Patents Represented by Attorney, Agent or Law Firm Henry E. Schanzer, Esq
  • Efficient filter implementation
    Patent number: 6411976
    Abstract: An N-stage finite impulse response (FIR) filter embodying the invention includes a first filter section whose filter coefficients are made either 1 or zero (rather than 1 and −1) in order to produce a first output (i.e., C1) and a second filter section for producing a second output (i.e., C2), which when combined (added to or subtracted from) with the first output produces an output function (i.e., Cn) which is equal to that produced by an N-stage FIR filter implementing filter coefficients having a value of either 1 or −1.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: June 25, 2002
    Assignee: Agere Systems Guardian Corp.
    Inventors: Richard Adam Cesari, Xiao-An Wang