Minimum mean square error processing
RN Mazahreh, HJ Tarn, RM Rao - US Patent 8,620,984, 2013 - Google Patents
A first systolic array receives an input set of time division multiplexed matrices from a
plurality of channel matrices. In a first mode, the first systolic array performs triangularization …
plurality of channel matrices. In a first mode, the first systolic array performs triangularization …
Left and right matrix multiplication using a systolic array
RM Rao, CH Dick - US Patent 8,417,758, 2013 - Google Patents
A method, machine-readable medium, and systolic array for left matrix multiplication of a first
matrix and a second matrix are described. The first matrix is a triangular matrix, and a cross …
matrix and a second matrix are described. The first matrix is a triangular matrix, and a cross …
Soft-wired radio (SWR) web machine
J Mitola III - US Patent 10,303,881, 2019 - Google Patents
A domain-specific hardwired symbolic communications machine is described that processes
information via the hardwired mapping of symbols from one or more domains onto other …
information via the hardwired mapping of symbols from one or more domains onto other …
Systolic array for matrix triangularization and back-substitution
RM Rao, CH Dick - US Patent 8,510,364, 2013 - Google Patents
Methods for matrix processing and devices therefor are described. A systolic array in an
integrated circuit is coupled to receive a first matrix as input; and is capable of operating in …
integrated circuit is coupled to receive a first matrix as input; and is capable of operating in …
Multiple-input multiple-output (MIMO) decoding with subcarrier grouping
HJ Tarn, RN Mazahreh, RM Rao - US Patent 8,416,841, 2013 - Google Patents
Multiple input multiple output (MIMO) receiver circuitry is described. In one circuit, input
circuitry provides a matrix of unresolved symbols received from a plurality of receive …
circuitry provides a matrix of unresolved symbols received from a plurality of receive …
Modified givens rotation for matrices with complex numbers
RM Rao, CH Dick - US Patent 8,473,539, 2013 - Google Patents
Nulling a cell of a complex matrix is described. A complex matrix and a modified Givens
rotation matrix are obtained for multiplication by a processing unit, such as a systolic array or …
rotation matrix are obtained for multiplication by a processing unit, such as a systolic array or …
Overflow resistant, fixed precision, bit optimized systolic array for QR decomposition and MIMO decoding
RM Rao, RN Mazahreh, HJ Tarn - US Patent 8,406,334, 2013 - Google Patents
In one embodiment, a circuit for matrix decomposition is provided. The circuit includes an
input circuit for receiving a first matrix. A permutation circuit is coupled to the input circuit and …
input circuit for receiving a first matrix. A permutation circuit is coupled to the input circuit and …
Systolic array for cholesky decomposition
RM Rao - US Patent 8,443,031, 2013 - Google Patents
(57) ABSTRACT A systolic array for Cholesky decomposition of an NXN matrix is described.
A plurality of processing cells, including a corner cell, N-1 boundary cells, and (N-3N+ 2)/2 …
A plurality of processing cells, including a corner cell, N-1 boundary cells, and (N-3N+ 2)/2 …
Method and system for a low-complexity soft-output MIMO detection
An approach for Soft-output K-Best MIMO detection comprises computing an estimated
symbol vector and Log-Likelihood Ratio (LLR) values for transmitted bits. The approach …
symbol vector and Log-Likelihood Ratio (LLR) values for transmitted bits. The approach …
Decoder and process therefor
RM Rao, CH Dick - US Patent 8,473,540, 2013 - Google Patents
(57) ABSTRACT A decoder, such as for example an MMSE MIMO decoder, and a method for
decoding are described. An input channel matrix is obtained, and an extended channel …
decoding are described. An input channel matrix is obtained, and an extended channel …