Patent review

Previous blog i gave review on IEEE paper on topic FM demodulation. now m going to talk about Patent on it. It's littel difficult to understand but whatever i understood that i going to write.

Patent:-

 DYNAMIC DIGITAL IIR AUDIO FILTER AND METHOD WHICH PROVIDES DYNAMIC DIGITAL FILTERING FOR AUDIO SIGNALS  

This patent is publish on United state (Patent Application Publication Sundaresan)

Pub. N0.: USOO5170369A
Patent no.: 5,170,369

Pub. Date: Dec. 8, 1992

Inventor: David P. Rossum, Amos’ Calif.

(Us)

The present invention relates to a dynamic digital IIR audio ?lter and corresponding method. The current state of the art for digital in?nite impulse response (IIR) ?lters for audio applications utilizes long wordlengths to obtain adequate noise performance for adequate sound quality. advantages and novel features of the present invention will be set forth in part in the description which follows and in part become apparent to those skilled in the art upon examination of the fol lowing or ay be learned by practice of the invention.