Eugene Russel Griffith
Physician at Blue Windsor Ln, Colorado Springs, CO
License number
Colorado 11847
Issued Date
Jul 10, 1951
Renew Date
May 31, 1991
Expiration Date
May 31, 1991
Type
Physician
Address
Address
312 Blue Windsor Ln, Colorado Springs, CO 80906
Professional information
Sound System Employing Automatic Proportional Amplification
US Patent:
4598418, Jul 1, 1986
Filed:
Oct 15, 1985
Appl. No.:
6/788092
Inventors:
Eugene R. Griffith - Colorado Springs CO
Steven T. Connett - Colorado Springs CO
Steven T. Connett - Colorado Springs CO
International Classification:
H04R 2700
US Classification:
381 83
Abstract:
A sound system for use in government council chambers, corporate board rooms, and the like employs low level switching of the audio signal to selectively attenuate the audio output of a given speaker or group of speakers as a function of the source of that audio signal.