The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 2004
Filed:
Dec. 11, 2001
Applicant:
Inventors:
Philip R. Jeffs, Snohomish, WA (US);
Paul Mathews, Langley, WA (US);
Assignee:
Rane Corproration, Mukilteo, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 ;
U.S. Cl.
CPC ...
H04B 1/00 ;
Abstract
A non-contact fader control uses a movable permanent magnet and one or two Hall-effect sensors to provide a constant, direct current voltage output. Signal conditioning and digital control circuitry linearize the output and otherwise precondition the output for application to a voltage controlled amplifier for the control of audio output in an audio mixing board.