Earphone set with detachable speakers or subwoofers

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S182000, C381S380000, C381S381000

Reexamination Certificate

active

07983437

ABSTRACT:
An apparatus is provided including a first speaker which emits sound, a second speaker which emits sound, and a device which connects the first speaker and the second speaker. The device may connect the first speaker or front speaker, and the second speaker or rear speaker, so that the device can be attached to an ear of a person so that the first speaker lies near the middle of the ear while the second speaker lies at a location between an ear lobe of the ear and a mastoid of a skull of the person.

REFERENCES:
patent: 3869584 (1975-03-01), Wilde
patent: 3900707 (1975-08-01), Hanson
patent: 3984885 (1976-10-01), Yoshimura et al.
patent: 4821323 (1989-04-01), Papiernik
patent: 4972468 (1990-11-01), Murase et al.
patent: 5684879 (1997-11-01), Verdick
patent: D395653 (1998-06-01), Read et al.
patent: 5787166 (1998-07-01), Ullman
patent: D420007 (2000-02-01), Marchall et al.
patent: 6356644 (2002-03-01), Pollak
patent: 6374126 (2002-04-01), MacDonald et al.
patent: D464951 (2002-10-01), Skulley et al.
patent: 6483925 (2002-11-01), Shen et al.
patent: 6603863 (2003-08-01), Nagayoshi
patent: 6944309 (2005-09-01), Terai et al.
patent: D605172 (2009-12-01), Seade
patent: 2004/0218775 (2004-11-01), Huang
patent: 2005/0244020 (2005-11-01), Nakajima
patent: 2007/0177748 (2007-08-01), Yang
patent: 2007/0258613 (2007-11-01), Wright

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

Earphone set with detachable speakers or subwoofers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Earphone set with detachable speakers or subwoofers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earphone set with detachable speakers or subwoofers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2722032

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