Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1997-01-08
1999-03-02
Psitos, Aristotelis M.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327308, 360 46, G11B 509
Patent
active
058776443
ABSTRACT:
Disclosed are a programmable digital device and method for generating tracking threshold signals for qualification of input peak signals in response to programmed digital gain signals which control the rate at which the envelope of the qualified input peak signals is followed, and in response to a programmed digital attenuation signal which determines the proportion of the peak envelope at which to generate new tracking threshold signals. The programmable digital device and method also provide a programmed clamp signal to clamp the positive and negative threshold signals to not fall below the programmed values. An anti-hang capability is provided to allow the thresholds to drop after a programmed time period during which no signal is detected. In an alternative arrangement, the centerline of the envelope is followed and used as the threshold.
REFERENCES:
patent: 4270208 (1981-05-01), MacDavid
patent: 5101395 (1992-03-01), Cardero et al.
patent: 5315284 (1994-05-01), Bentley et al.
patent: 5363100 (1994-11-01), Bailey et al.
patent: 5455720 (1995-10-01), Norton
patent: 5495368 (1996-02-01), Blatchley et al.
patent: 5502711 (1996-03-01), Clark et al.
patent: 5508855 (1996-04-01), Hutchins et al.
patent: 5530601 (1996-06-01), Hutchins et al.
patent: 5708537 (1998-01-01), Galbraith et al.
Christensen Eric Rolf
Hutchins Robert Allen
Patapoutian Ara Sarkis
Holcombe John H.
International Business Machines - Corporation
Psitos Aristotelis M.
Sullivan Robert M.
Wamsley Patrick
LandOfFree
Programmable digital envelope following threshold generation app does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Programmable digital envelope following threshold generation app, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable digital envelope following threshold generation app will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-426085