Resources Contact Us Home
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
Method for adjusting link speed and computer system using the same
Methods, devices and software applications for facilitating a development of a computer program
Methods for the production of aligned carbon nanotubes and nanostructured material containing the same
Enediyne compounds, conjugates thereof, and uses and methods therefor
Codeword-enhanced peer-to-peer authentication
Handheld electronic device with text disambiguation employing advanced editing feature
Noise suppression in speech signals
  Randomly Featured Patents
Air balancing for vibratory apparatus with air knife
Display case
PIN recovery in a smart card
Installation systems for spinal stabilization system and related methods
Electro-optical measuring device
Encapsulating resin composition for preapplication, semiconductor device made with the same, and process for producing the same
Flat sided irrigation tubing
Application portability and extensibility through database schema and query abstraction
Method of manufacturing a semiconductor device utilizing active oxygen
Methods and systems for sectionalizing a looped distribution line in a power distribution system