公开(公告)号：EP0595856A4

公开(公告)日：1994-12-07

申请号：EP92914843

申请日：1992-06-25

Applicant: MOTOROLA INC

Inventor： ECKLUND LAWRENCE MARVIN ,  BUCHWALD GREGORY JOHN ,  PARMELEE STEVEN GLEN

IPC: H03G5/02 ,  H04B1/16 ,  H04B7/005 ,  H03G5/00

CPC classification number: H04B1/16 ,  H03G5/025

Abstract: An adaptive graphic equalizer (200, 400) has various ordinarily fixed parameters (such as center frequencies, filter bandwidths, and step response sensitivity) that are automatically altered to suit a particular audio source. In one embodiment, a radio (100) includes the graphic equalizer, and such adjustments are automatically made depending upon whether the user has selected the AM or FM reception band.

公开(公告)号：EP0060845A4

公开(公告)日：1983-01-31

申请号：EP81902192

申请日：1981-07-29

Applicant: MOTOROLA INC

Inventor： ECKLUND LAWRENCE MARVIN

IPC: H04B1/26 ,  H03J7/00 ,  H03J7/02 ,  H03J7/06 ,  H04B1/10

CPC classification number: H03J7/023