Apparatus and method for processing continuous wave fields propagated in a room

US8218774B2 · kind B2 · utility

Assignees

• Herbert Buchner · DE
• Wolfgang Herbodt · DE
• Sascha Spors · DE
• Walter Kellerman · DE

Inventors

• Herbert Buchner · Nittendorf, DE
• Wolfgang Herbodt · Volkach, DE
• Sascha Spors · Nuremberg, DE
• Walter Kellermann · Eckental, DE

Key dates

• Filing date: May 4, 2006
• Grant date: Jul 10, 2012
• Expiry date: Feb 12, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S2420/13
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

An apparatus for processing an input signal, wherein the input signal comprises a plurality of subsignals associated to discrete transmitters or receivers, wherein the discrete transmitters or receivers are disposed at predetermined geometrical positions with regard to a room, comprises a means for providing a plurality of wave-field components, wherein a superposition of the plurality of wave-field components results in a composite wave field, wherein the composite wave field can be propagated in the room, wherein the plurality of wave-field components are derived from the input signal by wave field decomposition based on orthogonal wave field base functions and the predetermined geometrical positions, a plurality of single filters, wherein a wave-field component of the plurality of wave-field components is associated to a single filter, wherein the single filter is formed to influence the associated wave-field component such that with regard to the plurality of single filters a plurality of filtered wave-field components representing a processed input signal are obtained on the output side.