Electromagnetically-shielded speaker systems and methods

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker

Reexamination Certificate

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Details

C381S189000, C381S394000, C381S401000

Reexamination Certificate

active

07940950

ABSTRACT:
The present invention relates to electromagnetically-shielded speaker (or microphone) systems for generating acoustic sounds (or electric signals) based upon electric signals (or acoustic sounds) supplied thereto while minimizing irradiation of undesirable electromagnetic waves. More particularly, the present invention relates to various speaker systems each of which has at least one source for emitting the undesirable waves and at least one counter member for emitting counter electromagnetic waves capable of canceling at least a substantial portion of the undesirable waves due to their phase characteristics. The present invention instead relates to various speaker systems each of which has at least one electric and/or magnetic shields capable of shielding and/or terminating electric waves and magnetic waves of the undesirable waves, respectively. The present invention also relates to various methods of minimizing irradiation of the undesirable waves by such counter members, various methods of shielding the undesirable waves by the electric and/or magnetic shields, and the like. The present invention further relates to various processes for providing such systems, counter members thereof, electric and/or magnetic shields therefor, and the like.

REFERENCES:
patent: 5832096 (1998-11-01), Hall
patent: 6466679 (2002-10-01), Husung
patent: 2004/0208337 (2004-10-01), Anciant

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