Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Block interleaver and de-interleaver with buffer to reduce power consumption










Image Number 4 for United States Patent #6625763.

A block interleaver is provided using a relatively small register file and a larger random access memory (RAM). In one embodiment, the size of the RAM is larger than the size of the register file by at least one order of magnitude. As a result, the register file consumes significantly less power than the RAM for similar operations. The register file receives a stream of sequential data values and stores the data values in a column order. The data values are then read from the register file in a row order. The data values read from the register file in a row order are then written to the RAM in a row order. The data values are then read from the RAM in a row order, thereby creating an interleaved data stream. In a particular embodiment, the data values are written to the RAM in a staggered row order and read from the RAM in a sequential row order. All accesses to the RAM are performed using the full width of the RAM, such that no unnecessary power is used to access the RAM. The register file consumes significantly less power than the RAM, thereby providing an overall power savings for the interleaving process. In different embodiments, the register file can be a single-port device or a dual-port device. A similar block de-interleaver is provided in another embodiment.








 
 
  Recently Added Patents
Drug delivery system
Wrench
Interactivity model for shared feedback on mobile devices
Determining phase-specific parameters of a physiological variable
SIC semiconductor device and method for manufacturing the same
Lookup front end packet input processor
Motor device and method of manufacturing the same
  Randomly Featured Patents
Faucet
Device for optical connections of one or more optical emitters with one or more optical detectors of one or more integrated circuits
Portable tray attachment for vehicle
Pile tip for plural piles
Charge roller for an image forming apparatus
Cable clamp
Card processing device and a card processing system
Photographic reproduction system
Mono-diameter wellbore casing
Ironing machine with heating cylinder and circulation of air