Resources Contact Us Home
Codebook-based lossy data compression encoding system

Image Number 3 for United States Patent #5838691.

A communication system encodes input data by comparing the data to records in a lossy codebook to determine the closest match. An index corresponding to the record that most closely matches the input data is retrieved from the codebook and transmitted to a receiver. For a predetermined sampling interval, the communication system collects statistics of the frequency of occurrence of each record matching the input data. The records are sorted in descending order by the frequency of occurrence. Using either a predetermined error rate or a predetermined subtable size, the communication system creates a subtable of the records having the greatest frequency of occurrence. To reduce the search time of finding a record matching the input data, the communication system searches only the subtable for records until the error of the match in the subtable exceeds a preselected threshold or until a preselected period of time has elapsed. The communication system again collects statistics of the frequency of occurrence.

  Recently Added Patents
Labeling communcation device call logs
Method and apparatus for producing triangular waveform with low audio band noise content
Diversity schemes for 2-D encoded data
Method for manufacturing a porous synthetic diamond material
Storage rack
Structural material with embedded sensors
  Randomly Featured Patents
High pressure plug coupling
System and method for finding an operation/tool combination that causes integrated failure in a semiconductor fabrication facility
Flowable dry nutritive mixture and process for its manufacture
Food compositions, compositions for oral cavity and medicinal compositions for preventing or treating periodontosis and method for preventing or treating periodontosis
Plant for continuously sterilising fluids, such as milk and cream
Bearing measurement device for a portable attack warning radar
Dilation devices and methods for removing tissue specimens
Rewriteable image-recording substrate, image-recording apparatus and image-erasing apparatus therefor
Apparatus for toilet training a pet and method for toilet training a cat
SIMD processor executing min/max instructions