Acoustic echo reduction in mobile terminals

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C379S406010

Reexamination Certificate

active

07953456

ABSTRACT:
An electronic device includes first and second speakers, a microphone, and circuitry configured to generate first and second audio signals in response to a source audio signal, to play the first audio signal over the first speaker, and to play the second audio signal over the second speaker. The first and second audio signals are configured, and the first and second speakers are positioned, so that the first audio signal output by the first speaker and the second audio signal output by the second speaker combine destructively at the microphone.

REFERENCES:
patent: 5323458 (1994-06-01), Park et al.
patent: 7035396 (2006-04-01), Ubowski et al.
patent: 2003/0185402 (2003-10-01), Benesty et al.
patent: 2006/0034448 (2006-02-01), Parry
patent: 11-225391 (1999-08-01), None
patent: 2004 297185 (2004-10-01), None
patent: WO 99/66492 (1999-12-01), None
Murtazin, Elder “Review Motorola E398” website. <“http://www.mobile-review.com/print.php?filename=/review/motorola-e398-en.shtml”> 17 pages. (May 17, 2004).
International Search Report and Written Opinion for International Application No. PCT/US2008/001861 mailed May 20, 2008 (12 pages).
PCT Written Opinion (3 pages) corresponding to International Application No. PCT/US2008/001861; Mailing Date: Jul. 10, 2009.

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

Acoustic echo reduction in mobile terminals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic echo reduction in mobile terminals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic echo reduction in mobile terminals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2676356

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