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
Method and system for enabling rendering of electronic media content via a secure ad hoc network configuration utilizing a handheld wireless communication device
Methods, systems, and products for providing ring backs
Portable communication terminal, communication method and control program
Inkjet ink
Bias voltage generating circuit and switching power supply thereof
Floor standing rack
  Randomly Featured Patents
Nuclear fuel element containing low-enrichment uranium and method for producing same
Extended addressing apparatus and method for direct storage access devices
Synchronization method for NAT static port forwarding objects in redundant configurations
Method of improving the corrosion resistance of carbonitrided components made of ferrous materials
Serial data bus and use thereof
Bulk medication dispenser and monitoring device
Grain drier and method of drying grain
Method and apparatus for correcting the depth index for well-log data using pressure measurements
Multi-wavelength laser usable for WDM applications and interferometric sensors
3-D TV Systems