Communications: electrical – Visual indication – Audio responsive lamp
Reexamination Certificate
2007-09-20
2011-12-27
Swarthout, Brent (Department: 2612)
Communications: electrical
Visual indication
Audio responsive lamp
C084S46400A, C340S331000, C340S332000, C340S815400, C381S056000
Reexamination Certificate
active
08085163
ABSTRACT:
A system that varies the brilliance of light bulbs in accordance with modulated audio signals. The audio signals are first compressed and then passed through a comparator. The comparator has two inputs, one of which is the aforesaid compressed audio signals. The other input is a control input which receives a second voltage in the form of a series of impulses. The compressed audio signals pass through the comparator if and when their voltage is higher than that of said second voltage.
REFERENCES:
patent: 1977997 (1934-10-01), Patterson
patent: 3111057 (1963-11-01), Cramer
patent: 3228278 (1966-01-01), Wortman
patent: 3720939 (1973-03-01), Polanek
patent: 3815128 (1974-06-01), McClure
patent: 4359669 (1982-11-01), Anderson
patent: 4771280 (1988-09-01), Molinaro
patent: 5191319 (1993-03-01), Kiltz
patent: 5402702 (1995-04-01), Hata
patent: 5501131 (1996-03-01), Hata
patent: 6696999 (2004-02-01), Ollos et al.
patent: 7451077 (2008-11-01), Lindau et al.
Microphone Preamplifier with Variable Compression and Noise Gating SSM 2165, Dec. 2002.
Low Voltage Microphone Preamplifier with Variable Compression and Noise Gating SSM167, Dec. 2003.
Linear Technology entitled “Clock-Tunable, Quad Second Order, Filter Building Blocks LTC 1068 Series” (28 pages), Dec. 1996.
Hatch Victor W.
Wells Kenneth A.
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