Volume control pedal

Details Volume control pedal Volume control pedal

2005-02-22

2005-02-22

Woo, Stella (Department: 2643)

Electrical audio signal processing systems and devices

Including amplitude or volume control

C381S109000

Reexamination Certificate

active

06859541

ABSTRACT:
A volume control pedal has an opposed emitter and receiver which are set up to establish an emission path therebetween. A shade is provided to intersect the emission path. Pedal operation induces relative displacement between the shade and emission that as a result varies the emission reception such that the receiver's output provides a control variable for volume control. The shade has a varying regions of light and dark as rendered by an image of a varying dot density pattern. This allows among other things producing the image by a computer-implemented process, as well as printing it on transparent stock such as optionally on a negative film by a film developing process.

REFERENCES:
patent: 5274710 (1993-12-01), Shaffer et al.
patent: 5659145 (1997-08-01), Weil
patent: 6318208 (2001-11-01), Thongs et al.
patent: 6548749 (2003-04-01), Suda
patent: 6724897 (2004-04-01), Smith

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