The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2007
Filed:
Dec. 21, 2001
Juha Purho, Helsinki, FI;
Juha Purho, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
In a method for a receiver a signal is received at the receiver, where after a Cholesky factor or a block Cholesky factor of the Schur complement or a negative of the Schur complement of a matrix is determined at a processor entity by deriving a generator matrix of the Schur complement or the negative of the Schur complement from the generator matrix of the matrix and then applying a Schur algorithm to the generator matrix of the Schur complement or the negative of the Schur complement. The derivation comprises permutating at least a part of matrix columns below a certain row, shifting these columns downward a predefined number of rows and deleting a number of top rows. A filter for the signal may then be defined by computing filter coefficients for filtering the signal based on the derived Cholesky factor or block Cholesky factor. In another application a received signal is estimated based on similar determinations.