AUDIO SIGNAL DELAY
Filed: September 28, 1982
ELECTRONIC DIGITAL DELAY APPARATUS FOR IMPROVING SOUND REINFORCING QUALITY.
Owned by: KNOWLES ELECTRONICS, INC.
Serial Number: 73390661
INDUSTRIAL RESEARCH PRODUCTS, INC.
Filed: September 30, 1982
SUBMINIATURE ELECTRO-ACOUSTIC CONVERTERS FOR CONVERTING ELECTRICAL SIGNALS TO ACOUSTIC SIGNALS AND ACOUSTIC SIGNALS TO ELECTRICAL…
Owned by: KNOWLES ELECTRONICS, INC.
Serial Number: 73398072
TRANSVERSAL EQUALIZER
Filed: December 24, 1984
ELECTRONIC SOUND ENHANCING EQUIPMENT, NAMELY -- AN EQUALIZER FOR FREQUENCY FILTERING AND ELIMINATION OF TRANSIENT SIGNALS…
Owned by: KNOWLES ELECTRONICS, INC.
Serial Number: 73515039
SYSTEM 41
Filed: June 2, 1989
SOUND REINFORCEMENT SYSTEMS COMPRISING AUTOMATIC VOICE ACTIVATED MICROPHONES, EQUALIZERS, AMPLIFIERS, LINK MODULATORS AND…
Owned by: KNOWLES ELECTRONICS, INC.
Serial Number: 73804083
KEPAR
Filed: June 3, 1996
computer software and hardware for use in acoustic research in the hearing aid industry, for transducers, microphones, receivers…
Owned by: KNOWLES ELECTRONICS, INC.
Serial Number: 75121241
