Electrical audio signal processing systems and devices – With musical instrument
Reexamination Certificate
2011-06-07
2011-06-07
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
With musical instrument
C084S621000
Reexamination Certificate
active
07957546
ABSTRACT:
A multi-channel noise reduction system provides improved noise reduction with direct instrument tracking of all channels. In a two channel noise reduction system, both channels detect and track the input level and dynamic range of the guitar directly with one channel of dynamic noise reduction between the guitar and the input of a guitar amplifier to eliminate the noise of the instrument and another channel of noise reduction connected in the effects loop of the guitar amplifier. Multiple channels of noise reduction can be implemented with separated threshold controls and with low level expansion and dynamic filtering being combined so as to detect and track the input level and dynamic range of the guitar directly. A buffer amplifier can be used to feed the direct guitar signal to the detectors of the noise reduction system and the input of a stereo guitar system.
REFERENCES:
patent: 3992584 (1976-11-01), Dugan
patent: 4647876 (1987-03-01), Waller, Jr.
patent: 4672671 (1987-06-01), Kennedy
patent: 4696044 (1987-09-01), Waller, Jr.
patent: 4881047 (1989-11-01), Waller, Jr.
patent: 4893099 (1990-01-01), Waller, Jr.
patent: 5124657 (1992-06-01), Waller, Jr.
patent: 5263091 (1993-11-01), Waller, Jr.
patent: 5404498 (1995-04-01), Tanaka et al.
patent: 5493617 (1996-02-01), Waller, Jr.
patent: 5789689 (1998-08-01), Doidic et al.
patent: 6522752 (2003-02-01), Smith
patent: 6944305 (2005-09-01), Waller
patent: 2002/0154786 (2002-10-01), Waller, Jr.
International Search Report and Written Opinion, issued by International Searching Authority (Autorized Officer: B. Copenheaver) on Feb. 22, 2008 (9 pgs).
Chin Vivian
Gable & Gotwals
Lao Lun-See
LandOfFree
Multi-channel noise reduction system with direct instrument... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-channel noise reduction system with direct instrument..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel noise reduction system with direct instrument... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2742812