Planar speaker driver

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S190000, C381S191000, C381S423000

Reexamination Certificate

active

08031901

ABSTRACT:
A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another aspect of the driver includes a corrugated region along the periphery of the diaphragm, which provides increased internal dampening.

REFERENCES:
patent: 3919499 (1975-11-01), Winey
patent: 3939312 (1976-02-01), McKay
patent: 4049926 (1977-09-01), Kasatkin et al.
patent: 4210786 (1980-07-01), Winey
patent: 4337379 (1982-06-01), Nakaya
patent: 4471172 (1984-09-01), Winey
patent: 4471173 (1984-09-01), Winey
patent: 4480155 (1984-10-01), Winey
patent: 4653103 (1987-03-01), Mori et al.
patent: 4837838 (1989-06-01), Thigpen et al.
patent: 5021613 (1991-06-01), Garcia
patent: 5081683 (1992-01-01), Torgeson
patent: 5317305 (1994-05-01), Campman
patent: 5430805 (1995-07-01), Stevenson et al.
patent: 5473700 (1995-12-01), Fenner, Jr.
patent: 5850461 (1998-12-01), Zelinka
patent: 5912863 (1999-06-01), Bengtsson
patent: 5953438 (1999-09-01), Stevenson et al.
patent: 6104825 (2000-08-01), Thigpen
patent: 6629922 (2003-10-01), Puria et al.
patent: 6760462 (2004-07-01), Thigpen
patent: 6810126 (2004-10-01), Levitsky
patent: 6934402 (2005-08-01), Croft et al.
patent: 7088837 (2006-08-01), Von Hellermann et al.
patent: 7099488 (2006-08-01), Bohlender
patent: 7142688 (2006-11-01), Croft et al.
patent: 7146019 (2006-12-01), Levitsky
patent: 7152299 (2006-12-01), Mango et al.
patent: 7174024 (2007-02-01), Suzuki et al.
patent: 7231058 (2007-06-01), Usuki et al.
patent: 7251342 (2007-07-01), Graebener
patent: 7450729 (2008-11-01), Nguyen et al.
patent: 7903834 (2011-03-01), Graber
patent: 7912241 (2011-03-01), Graber
patent: 7929725 (2011-04-01), Sugiura et al.
patent: 2001/0005419 (2001-06-01), Kermani et al.
patent: 2002/0021821 (2002-02-01), Tanase et al.
patent: 2002/0057822 (2002-05-01), Kermani et al.
patent: 2002/0061116 (2002-05-01), Hara et al.
patent: 2002/0076069 (2002-06-01), Norris et al.
patent: 2002/0118856 (2002-08-01), Croft et al.
patent: 2002/0191808 (2002-12-01), Croft et al.
patent: 2003/0076977 (2003-04-01), Levitsky
patent: 2003/0228029 (2003-12-01), Graebener
patent: 2004/0022409 (2004-02-01), Hutt et al.
patent: 2004/0022410 (2004-02-01), Bohlender
patent: 2004/0042632 (2004-03-01), Hutt et al.
patent: 2004/0136558 (2004-07-01), Usuki et al.
patent: 2004/0170296 (2004-09-01), Von Hellermann
patent: 2005/0002536 (2005-01-01), Gorelik et al.
patent: 2005/0031153 (2005-02-01), Nguyen et al.
patent: 2005/0036646 (2005-02-01), Garner et al.
patent: 2005/0041830 (2005-02-01), Takewa et al.
patent: 2005/0135653 (2005-06-01), Steere et al.
patent: 2005/0157904 (2005-07-01), Steere et al.
patent: 2006/0023902 (2006-02-01), Thigpen
patent: 2006/0050923 (2006-03-01), Croft et al.
patent: 2007/0098207 (2007-05-01), Lin
patent: 2007/0110269 (2007-05-01), Levitsky
patent: 2008/0219469 (2008-09-01), Simidian et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Planar speaker driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Planar speaker driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar speaker driver will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4280279

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.