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
Prevention and treatment of oxidative stress disorders by gluthathione and phase II detoxification enzymes
Collaborative computing community role mapping system and method
Communication system including relay station and data frame for the communication system
Method for automatically estimating inertia in a mechanical system
Buried object detection in GPR images
Knee guard
Semiconductor device having trapezoidal shaped trenches
  Randomly Featured Patents
Brake pedal apparatus
Image smoothing with decoupled regularization
Starting bar attachment for starting gates
Image reading with high fit accuracy
Mobile phone terminal, server, and group call system
Magnetic resonance examination apparatus comprising a coil system for MR mammography
Method and system for the confidential recording, management and distribution of meetings by means of multiple electronic devices with remote storage
Patient/invalid handling support
Method of treating skin ulcers with vectors encoding hepatocyte growth factor
Online performance monitoring and fault diagnosis technique for direct current motors as used in printer mechanisms