EP2113910B1

5G,4G,3G

Title

Analysis filterbank synthesis filterbank encoder decoder mixer and conferencing system

Application Number:

EP20090010178

Publication Date:

21-09-2011

Current Assignee:

Family ID:

Application Date:

29-08-2007

Declaring Company:

Publication Country:

US

Priority Date:

18-10-2006

Title

Analysis filterbank synthesis filterbank encoder decoder mixer and conferencing system

Application Number:

EP20090010178

Family ID:

Publication Country:

US

Publication Date:

21-09-2011

Application Date:

29-08-2007

Priority Date:

18-10-2006

Current Assignee:

Declaring Company:

Abstract  Abstract

An embodiment of a synthesis filterbank (800) for filtering a plurality of input frames wherein each input frame comprises M ordered input values y k(0) ... yk(M-1) comprises an inverse type-IV discrete cosine transform frequency/time converter (810) for providing a plurality of output frames an output frame comprising 2M ordered output samples xk(0) ... xk(2M-1) a windower (820) for generating a plurality of windowed frames a windowed frame comprising a plurality of windowed samples zk(0) ... zk(2M-1) an overlap/adder (820) for providing an intermediate frame comprising a plurality of intermediate samples mk(0) ... mk(M-1) and a lifter (830) for providing an added frame comprising a plurality of added samples outk(0) ... outk(M-1) based on the equation outkn=mkn+l?n-M/2?mk-1?M-1-nfor n=M/2…M-1 and outkn=mkn+l?M-1-n?outk-1?M-1-nfor n=0…M/2-1 wherein 1(0) ...1(M-1) are real-valued lifting coefficients.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.