Full range planar magnetic microphone and arrays thereof

Details Full range planar magnetic microphone and arrays thereof Full range planar magnetic microphone and arrays thereof

2007-09-14

2011-12-27

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S398000, C381S412000, C367S131000

Reexamination Certificate

active

08085969

ABSTRACT:
Contemplated planar magnetic microphones have a magnet and diaphragm arrangement such that substantially homogenous vertical and high horizontal magnetic flux density is realized in the inter-magnet space. Most preferably, the diaphragm is disposed in the inter-magnet space and includes a voice coil covering a significant fraction of the active portion of the membrane. In further especially preferred aspects, the membrane is sufficiently strong and tensioned to allow a large elastic excursion in the inter-magnet space. Consequently, contemplated planar magnetic microphones provide exceptionally large dynamic range without compression and/or distortion and can be easily configured to operate in an environment that is subject to moisture, rain, or to even operate in a submerged environment. Moreover, contemplated microphones can be used as speakers at even high SPL without reconfiguration.

REFERENCES:
patent: 5850461 (1998-12-01), Zelinka
patent: 5901235 (1999-05-01), Thigpen et al.
patent: 6972715 (2005-12-01), Hollis et al.
patent: 7203332 (2007-04-01), Hutt et al.
patent: 7251342 (2007-07-01), Graebener
patent: 2002/0191808 (2002-12-01), Croft et al.
patent: 2005/0036648 (2005-02-01), Nguyen et al.
patent: 2007/0159925 (2007-07-01), Chryssostomidis et al.

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