Communications device with adaptive decoding and associated...

Details Communications device with adaptive decoding and associated... Communications device with adaptive decoding and associated...

2007-09-04

2007-09-04

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Utilizing correlation techniques

C342S377000, C702S190000

Reexamination Certificate

active

11373367

ABSTRACT:
In a communications device operating with a blind signal separation (BSS) processor, an initial mixing matrix is formed based upon the different summations of the source signals received by the antenna array. The initial mixing matrix is evaluated to determine a minimum rank that is necessary for at least one source signal to be useable after having been separated from the initial mixing matrix and decoded. An additional mixing matrix is then formed, and also includes the different summations of the source signals. If the rank of the additional mixing matrix is less than the minimum rank associated with the initial mixing matrix, then the source signals are modified so that the rank of the additional mixing matrix is increased.

REFERENCES:
patent: 5959966 (1999-09-01), Torkkola
patent: 6473036 (2002-10-01), Proctor, Jr.
patent: 6799170 (2004-09-01), Lee et al.
patent: 6931362 (2005-08-01), Beadle et al.
patent: 7133699 (2006-11-01), Owechko et al.
patent: 2005/0203981 (2005-09-01), Sawada et al.

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