Resonance frequency determining method, resonance frequency...

Details Resonance frequency determining method, resonance frequency... Resonance frequency determining method, resonance frequency...

2011-06-21

2011-06-21

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

C073S579000

Reexamination Certificate

active

07965850

ABSTRACT:
A resonant frequency characteristic in a resonant space is detected, based on a base amplitude frequency characteristic obtained by outputting a sound wave of a specified measurement signal from a speaker13disposed in a sound space40and by receiving the sound wave in a microphone14disposed in the sound space40, a first amplitude frequency characteristic obtained by outputting, from the speaker13, a sound wave of the measurement signal and a signal output from the microphone14and by receiving the sound wave in the microphone14, and a second amplitude frequency characteristic obtained by outputting, from the speaker13, a sound wave of the measurement signal and a phase inverted signal obtain by inverting a phase of the signal output from the microphone14and by receiving the sound wave in the microphone14.

REFERENCES:
patent: 2576423 (1951-11-01), Stewart
patent: 4389891 (1983-06-01), Fournier
patent: 5619344 (1997-04-01), Yoshida et al.
patent: 6396192 (2002-05-01), Morales Serrano et al.
patent: 7249511 (2007-07-01), Higashihara
patent: 56066919 (1981-06-01), None
patent: 60-232797 (1985-11-01), None
patent: 02041004 (1990-02-01), None
patent: 06-202671 (1994-07-01), None
patent: 06-265401 (1994-09-01), None
patent: 07-154467 (1995-06-01), None
patent: 08-294194 (1996-11-01), None
patent: 11127496 (1999-05-01), None
patent: 2000-115883 (2000-04-01), None
Supplementary European Search Report for EP 05 73 7289, dated Mar. 20, 2008.
International Search Report in International (JP) Application PCT/JP2005/007868, by the Japanese Patent Office, dated Jul. 25, 2005.

Affiliated with

Also associated with

Rating

Resonance frequency determining method, resonance frequency... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Resonance frequency determining method, resonance frequency..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonance frequency determining method, resonance frequency... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2654244