Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
System and method for computing and unordered Hadamard transform










Image Number 8 for United States Patent #6766342.

A system and method for parallel computation of the unordered Hadamard transform. The computing system includes a plurality of interconnected processors and corresponding local memories. An input signal x is received, partitioned into M.sub.1 sub-vectors x.sub.i of length M.sub.2, and distributed to the local memories. Each processor computer a Hadamard transform (order M.sub.2) on the sub-vectors in its local memory (in parallel), generating M.sub.1 result sub-vectors t.sub.i of length M.sub.2, which compose a vector t of length M.sub.1.times.M.sub.2. A stride permutation (stride M.sub.2) is performed on t generating vector u. Each processor computes a Hadamard transform (order M.sub.1) on the sub-vectors u.sub.j in its local memory (in parallel), generating M.sub.1 result sub-vectors v.sub.j of length M.sub.2, which compose a vector v of length M.sub.2.times.M.sub.1. A stride permutation is performed on v (stride M.sub.1) generating result vector w, which is the Hadamard transform of the input signal x.








 
 
  Recently Added Patents
Caching techniques
Image recording device, image recording method, and computer program product that adds a fluorescent-whitening-agent onto a recording sheet
Imaging device and imaging method
Image capturing apparatus, control method thereof, and program
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
Apparatus and method for weighing an item of mail during transport through a sorting installation and having an anti-vibration device
Case
  Randomly Featured Patents
Solid sealant with environmentally preferable corrosion resistance
Verification key handling
Recliner adjuster
Varnish-coated heat-resistant roll for copying machine, and method of producing the same
Dietetical combination preparations
Semiconductor device and process of fabrication thereof
Weephole drainage aid and pest barrier
Vacuum system and method for securing a semiconductor wafer in a planar position
Electrical switching device with blow-out channels for arc gases
Body part dressing