Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent
1993-10-01
1996-01-30
Kuntz, Curtis
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Adjacent ear
381167, A61F 1106
Patent
active
054886660
ABSTRACT:
A system for suppressing sound from a flame comprises a detector for detecting a first signal which emanates from the flame. A photo sensor rapidly detects the noise from the flame. The first signal is inverted to produce a second signal. The second signal is applied to the flame for cancelling the sound produced by the flame. Preferably, an electric arc is produced between a cathode positioned in the flame and an anode positioned around the flame. The electric arc is modulated by the second signal.
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Greenhalgh Technologies
Kuntz Curtis
Lee Ping W.
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