The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1984
Filed:
May. 13, 1982
Applicant:
Inventors:
Robert A Berkovitz, Cambridge, MA (US);
Ronald P Genereux, Woonsocket, RI (US);
Assignee:
Teledyne Industries, Inc., Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ;
U.S. Cl.
CPC ...
381103 ; 381101 ; 333 / ;
Abstract
This disclosure concerns an equalizer for an audio reproduction system in which equalization is achieved using a discrete time filter. The filter is preferably implemented with a microprocessor programmed for generating and storing the filter coefficients in accordance with a perceived acoustic test signal reproduced by the system. Following generation and storage of the coefficients, the microprocessor also serves to equalize an input audio signal by convolving the stored coefficients with digitized time samples of the audio input signal.